WO2016152794A1 - 感光性樹脂組成物 - Google Patents
感光性樹脂組成物 Download PDFInfo
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- WO2016152794A1 WO2016152794A1 PCT/JP2016/058763 JP2016058763W WO2016152794A1 WO 2016152794 A1 WO2016152794 A1 WO 2016152794A1 JP 2016058763 W JP2016058763 W JP 2016058763W WO 2016152794 A1 WO2016152794 A1 WO 2016152794A1
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- 0 CC(C)(c1ccc(*)cc1)c1ccc(C(C)(c2ccc(*)cc2)c2ccc(*)cc2)cc1 Chemical compound CC(C)(c1ccc(*)cc1)c1ccc(C(C)(c2ccc(*)cc2)c2ccc(*)cc2)cc1 0.000 description 4
- KHSLUKGOEYBHMM-UHFFFAOYSA-N C=CCNC(NCCCS=C)=S Chemical compound C=CCNC(NCCCS=C)=S KHSLUKGOEYBHMM-UHFFFAOYSA-N 0.000 description 1
- IFTRQJLVEBNKJK-UHFFFAOYSA-N CCC1CCCC1 Chemical compound CCC1CCCC1 IFTRQJLVEBNKJK-UHFFFAOYSA-N 0.000 description 1
- JTEJNZXSUZBNHW-XQRVVYSFSA-N CCc1c(/C=C\C)[n](C)nn1 Chemical compound CCc1c(/C=C\C)[n](C)nn1 JTEJNZXSUZBNHW-XQRVVYSFSA-N 0.000 description 1
- ULKZBKMROPXDBT-UHFFFAOYSA-N CN1N=C(S)SC1S Chemical compound CN1N=C(S)SC1S ULKZBKMROPXDBT-UHFFFAOYSA-N 0.000 description 1
- OXGGBIDIGKLMPS-UHFFFAOYSA-N CS(C(c1ccccc1C1=O)=CC1=N)(=O)=O Chemical compound CS(C(c1ccccc1C1=O)=CC1=N)(=O)=O OXGGBIDIGKLMPS-UHFFFAOYSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
- C08G69/265—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids from at least two different diamines or at least two different dicarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/42—Polyamides containing atoms other than carbon, hydrogen, oxygen, and nitrogen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/38—Thiocarbonic acids; Derivatives thereof, e.g. xanthates ; i.e. compounds containing -X-C(=X)- groups, X being oxygen or sulfur, at least one X being sulfur
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/39—Thiocarbamic acids; Derivatives thereof, e.g. dithiocarbamates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/02—Polyamines
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/022—Quinonediazides
- G03F7/023—Macromolecular quinonediazides; Macromolecular additives, e.g. binders
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
- G03F7/032—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders
- G03F7/037—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders the binders being polyamides or polyimides
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/038—Macromolecular compounds which are rendered insoluble or differentially wettable
- G03F7/0387—Polyamides or polyimides
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/039—Macromolecular compounds which are photodegradable, e.g. positive electron resists
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/20—Exposure; Apparatus therefor
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/26—Processing photosensitive materials; Apparatus therefor
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/30—Imagewise removal using liquid means
- G03F7/32—Liquid compositions therefor, e.g. developers
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/40—Treatment after imagewise removal, e.g. baking
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02118—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer carbon based polymeric organic or inorganic material, e.g. polyimides, poly cyclobutene or PVC
Definitions
- the present invention relates to a photosensitive resin composition. More specifically, the present invention relates to a photosensitive resin composition suitably used for a surface protective film such as a semiconductor element, an interlayer insulating film, and an insulating layer of an organic electroluminescent element.
- a surface protective film such as a semiconductor element, an interlayer insulating film, and an insulating layer of an organic electroluminescent element.
- a polyimide having an alkoxymethyl group a photosensitive resin composition containing a compound having two or more alkoxymethyl groups or methylol groups (Patent Document 1), a polyhydroxystyrene resin, a compound having an alkoxymethyl group or a methylol group Type positive photosensitive resin composition (Patent Document 2) and photosensitive resin composition (Patent Document 3) in which a specific addition amount of an isocyanuric acid derivative having a specific structure is combined with a polyhydroxyamide having a specific structure are proposed. High sensitivity and low stress are achieved.
- Patent Document 4 by introducing a flexible group in the repeating unit of alkali-soluble closed ring polyimide or polybenzoxazole, a method for suppressing the stress generated at the time of producing a cured film and realizing low warpage has been proposed ( Patent Document 4).
- JP 2010-229210 A Japanese Patent No. 46922219 JP 2008-129071 A JP 2012-234030 A
- the closed ring polyimide having a flexible group has a problem in that mechanical properties are lowered although the stress can be reduced.
- polybenzoxazole having a flexible group synthesized from an aliphatic dicarboxylic acid has a problem that stress on the base wafer increases due to dehydration ring closure at the time of curing.
- the heat-resistant resin composition when used for applications such as semiconductors, since the film after heat curing remains as a permanent film in the device, the physical properties of the cured film after heating are very important. In order to ensure reliability in semiconductor packages, adhesion to the material formed on the surface of the semiconductor chip is important. Especially when used as an insulating film between wiring layers of wafer level packages, electrodes and wiring Adhesiveness with a metal material used for the above becomes important.
- the heat-resistant resin is generally considered not to have high adhesive strength with a metal material due to its rigid main chain structure, particularly in the case of a cured resin film formed from a resin composition imparted with photosensitivity.
- Additives such as photosensitizers, sensitizers, acid generators and dissolution regulators that make up the product remain in the cured film even after heat curing, so the adhesive strength is higher than those that do not contain additives. Low. Therefore, the resin composition which has an additive had the subject that adhesiveness with the metal used as a wiring material is low.
- the present invention provides a highly sensitive photosensitive resin composition that solves the problems associated with the prior art as described above and can obtain a cured film having low stress and high elongation.
- a photosensitive resin composition comprising an alkali-soluble resin having an organic group derived from an aliphatic diamine.
- the photosensitive resin composition according to [1], wherein the alkali-soluble resin having an organic group derived from the aliphatic diamine is (A) an alkali-soluble polyamide represented by the general formula (1).
- X 1 and X 2 represent a divalent organic group
- Y 1 represents a divalent to tetravalent organic group
- Y 2 represents an aliphatic structure having 2 or more carbon atoms.
- R 1 and R 2 represent hydrogen or an organic group having 1 to 20 carbon atoms
- p, q, r, s, and t are 0 ⁇ p ⁇ 4, 0 ⁇ q. ⁇ 4, 0 ⁇ r ⁇ 2, 0 ⁇ s ⁇ 4, 0 ⁇ t ⁇ 4
- n 1 and n 2 When p, q, r, s, and t are 0, a hydrogen atom is represented, n 1 and n 2, 1 ⁇ n 1 ⁇ 500,1 ⁇ n 2 ⁇ 500,0.05 ⁇ n 1 / (n 1 + n 2) represents an integer that satisfies ⁇ 1.)
- Y 2 in the general formula (1) has a structural unit represented by the general formula (2).
- R 3 to R 6 each independently represents an alkylene group having 2 to 10 carbon atoms, and a, b and c are 0 ⁇ a ⁇ 20 and 0 ⁇ b ⁇ 20, respectively. It represents an integer in the range of 0 ⁇ c ⁇ 20, and the arrangement of repeating units may be block-like or random.
- R 7 to R 9 represent an O atom, an S atom, or an N atom, and at least one of R 7 to R 9 represents an S atom.
- L represents 0 or 1 M
- n each represents an integer of 0 to 2.
- R 10 to R 12 each independently represents a hydrogen atom or an organic group having 1 to 20 carbon atoms.
- the photosensitive resin composition of the present invention is highly sensitive and can provide a cured film having low stress, high extensibility, adhesion to a metal material, and particularly excellent adhesion to copper.
- the electronic component of the present invention is highly reliable because it has a good shape and a pattern with excellent adhesion and heat resistance.
- the present invention is a photosensitive resin composition
- a photosensitive resin composition comprising an alkali-soluble resin having an organic group derived from an aliphatic diamine.
- the alkali-soluble polyamide that is the base polymer of the photosensitive resin composition of the present invention is an alkali-soluble polyamide having a repeating unit represented by the general formula (1), and is X 1 (COOH) 2 or X 2 (COOH). dicarboxylic acids having 2 structure or X 1 (COZ) 2 or X 2 (COZ) dicarboxylic acid derivative and Y 1 having the second structure (NH 2) 2 (OH) 2 and Y 2 (NH 2) 2, It is a polyamide that can be obtained by polycondensation of a bisaminophenol having a structure and a diamine.
- the two amino groups and the hydroxyl group of the bisaminophenol are respectively in the ortho positions, and the polyamide is dehydrated and closed by heating at about 250 ° C. to 400 ° C.
- the phenol moiety may change to benzoxazole.
- the base polymer of the positive photosensitive resin composition of the present invention may or may not be closed after heat curing.
- the polyamide preferably has a value of n 1 / (n 1 + n 2 ) of 0.05 or more, more preferably 0.5 or more, and 0.7 or more from the viewpoint of alkali solution solubility. More preferably, it is most preferably 0.8 or more. Further, from the viewpoint of low stress, the value of n 1 / (n 1 + n 2 ) is preferably less than 1, and more preferably 0.95 or less.
- X 1 and X 2 are Although the case of the aromatic group chosen from the following structural formula is mentioned, it is not limited to these.
- A represents —, —O—, —S—, —SO 2 —, —COO—, —OCO—, —CONH—, —NHCO—, —C (CH 3 ) 2 —, —C (CF 3) 2 - with a divalent radical selected from the group consisting of).
- Z is a group selected from an organic group having 1 to 12 carbon atoms or a halogen element. A selected group is preferred.
- B and C include a hydrogen atom, a methyl group, an ethyl group, a propyl group, an isopropyl group, a t-butyl group, a trifluoromethyl group, a halogen group, a phenoxy group, and a nitro group.
- aminophenols having the structure of Y 1 (NH 2 ) 2 (OH) 2 include bis (3-amino-4-hydroxyphenyl) hexafluoropropane, bis (3-amino-4-hydroxyphenyl) sulfone, Bis (3-amino-4-hydroxyphenyl) propane, bis (3-amino-4-hydroxyphenyl) methylene, bis (3-amino-4-hydroxyphenyl) ether, bis (3-amino-4-hydroxy) biphenyl And hydroxyl group-containing diamines such as bis (3-amino-4-hydroxyphenyl) fluorene. Moreover, you may use combining these 2 or more types of diamine components.
- Y 2 has an aliphatic structure, and preferably has an alkylene oxide structural unit represented by the general formula (2).
- examples of the diamine having a structural unit represented by the general formula (2) as Y 2 include ethylenediamine, 1,3-diaminopropane, 2-methyl-1,3-propanediamine. 1,4-diaminobutane, 1,5-diaminopentane, 2-methyl-1,5-diaminopentane, 1,6-diaminohexane, 1,7-diaminoheptane, 1,8-diaminooctane, 1,9 -Diaminononane, 1,10-diaminodecane, 1,11-diaminoundecane, 1,12-diaminododecane, 1,2-cyclohexanediamine, 1,3-cyclohexanediamine, 1,4-cyclohexanediamine, 1,2-bis (Aminomethyl) cyclohexane, 1,3-bis (aminomethyl) cyclohexane,
- a structure represented by general formula (2) as Y 2 in the alkali-soluble polyamide represented by (A) general formula (1) (hereinafter sometimes abbreviated as (A) component) used in the present invention, a structure represented by general formula (2) as Y 2.
- the molecular weight of the unit is 150 or more, it is possible to suppress an increase in stress to the base wafer accompanying dehydration ring closure that may occur when the polyamide structure of the component (A) is closed. That is, the flexibility of the Y 2 component can relieve stress, and a reduction in stress can be realized.
- the introduction of a low UV-absorbing flexible group improves i-ray transmission and can simultaneously achieve high sensitivity.
- the molecular weight of the structural unit represented by the general formula (2) is preferably 150 or more, more preferably 600 or more, and further preferably 900 or more. Moreover, if molecular weight is 2,000 or less, it is preferable at the point which maintains the solubility to an alkaline solution, 1800 or less is more preferable, and 1500 or less is further more preferable.
- the molecular weight is more preferably 600 or more and 1,800 or less, and further preferably 900 or more and 1,500 or less. Thereby, lower stress property and sensitivity can be improved.
- the molecular weight of Y 2 component in the resin component (A), with respect to the diamine monomer containing Y 2 structure, for example to measure such in LC-MS, can be obtained as the molecular weight of the main signal.
- component (A) in addition diamine having a structure of Y 2 (NH 2) 2, it may be copolymerized with other diamines.
- other diamines include 3,4'-diaminodiphenyl ether, 4,4'-diaminodiphenyl ether, 3,4'-diaminodiphenylmethane, 4,4'-diaminodiphenylmethane, 3,4'-diaminodiphenylsulfone, 4 , 4'-diaminodiphenylsulfone, 3,4'-diaminodiphenyl sulfide, 4,4'-diaminodiphenyl sulfide, 1,4-bis (4-aminophenoxy) benzene, benzine, m-phenylenediamine, p-phenylenediamine 1,5-naphthalenediamine, 2,6-naphthalenediamine, bis (4-aminophenoxy) benzen
- an aliphatic group having a siloxane structure may be copolymerized within a range where the heat resistance is not lowered, and the adhesion to the substrate can be improved.
- the diamine component include those obtained by copolymerizing 1 to 15 mol% of bis (3-aminopropyl) tetramethyldisiloxane, bis (p-aminophenyl) octamethylpentasiloxane, and the like.
- the resin of the component (A) has a main chain terminal such as monoamine, acid anhydride, monocarboxylic acid, monoacid chloride compound, monoactive ester compound, etc. It is preferable to seal with a terminal sealing agent.
- a terminal sealing agent having a hydroxyl group, a carboxyl group, a sulfonic acid group, a thiol group, a vinyl group, an ethynyl group, or an allyl group, the dissolution rate of the resin in an alkaline solution and the resulting curing can be obtained.
- the mechanical properties of the membrane can be easily adjusted to a preferred range.
- the introduction ratio of the end-capping agent is preferably 0.1 mol% in order to prevent the molecular weight of the resin of the component (A) from being increased and the solubility in an alkaline solution from being lowered with respect to all amine components More preferably, it is 5 mol% or more, and preferably 60 mol% or less, particularly preferably 50 mol in order to suppress a decrease in mechanical properties of the cured film obtained by lowering the molecular weight of the resin of component (A). % Or less.
- a plurality of different end groups may be introduced by reacting a plurality of end-capping agents.
- Monoamines include M-600, M-1000, M-2005, M-2070 (above trade name, manufactured by HUNTSMAN Co., Ltd.), aniline, 2-ethynylaniline, 3-ethynylaniline, 4-ethynylaniline, 5- Amino-8-hydroxyquinoline, 1-hydroxy-7-aminonaphthalene, 1-hydroxy-6-aminonaphthalene, 1-hydroxy-5-aminonaphthalene, 1-hydroxy-4-aminonaphthalene, 2-hydroxy-7-amino Naphthalene, 2-hydroxy-6-aminonaphthalene, 2-hydroxy-5-aminonaphthalene, 1-carboxy-7-aminonaphthalene, 1-carboxy-6-aminonaphthalene, 1-carboxy-5-aminonaphthalene, 2-carboxy -7-aminonaphthalene, 2-carboxy-6- Minonaphthalene, 2-carboxy-5-aminonaphthalene, 2-aminobenzo
- Acid anhydrides such as phthalic anhydride, maleic anhydride, nadic anhydride, cyclohexanedicarboxylic anhydride, 3-hydroxyphthalic anhydride, etc., as acid anhydrides, monocarboxylic acids, monoacid chloride compounds, and monoactive ester compounds 3-carboxyphenol, 4-carboxyphenol, 3-carboxythiophenol, 4-carboxythiophenol, 1-hydroxy-7-carboxynaphthalene, 1-hydroxy-6-carboxynaphthalene, 1-hydroxy-5-carboxynaphthalene Monocarboxylic acids such as 1-mercapto-7-carboxynaphthalene, 1-mercapto-6-carboxynaphthalene, 1-mercapto-5-carboxynaphthalene, 3-carboxybenzenesulfonic acid, 4-carboxybenzenesulfonic acid, Monoacid chloride compounds in which these carboxyl groups are converted to acid chlorides, terephthalic acid, phthal
- transduced into resin of (A) component used for this invention can be easily detected with the following method.
- a resin having a terminal blocking agent introduced therein is dissolved in an acidic solution and decomposed into an amine component and an acid anhydride component as structural units, and this is measured by gas chromatography (GC) or NMR measurement.
- GC gas chromatography
- the end-capping agent used in the present invention can be easily detected.
- the resin component into which the end-capping agent has been introduced can also be easily detected by directly measuring it with a pyrolysis gas chromatograph (PGC), infrared spectrum and 13 C-NMR spectrum.
- PPC pyrolysis gas chromatograph
- component (A) used in the present invention may be copolymerized with another structure such as polyimide as long as it includes the structure represented by the general formula (1).
- the component (A) in the present invention preferably has a weight average molecular weight of 5,000 or more and 50,000 or less.
- a weight average molecular weight 5,000 or more and 50,000 or less.
- GPC gel permeation chromatography
- the folding resistance after curing can be improved.
- the weight average molecular weight is 50,000 or less
- developability with an alkaline solution can be improved.
- 20,000 or more is more preferable.
- at least 1 type of weight average molecular weight should just be the said range.
- the solvent used in the polymerization (hereinafter referred to as a polymerization solvent) is not particularly limited as long as it can dissolve the raw material monomers tetracarboxylic dianhydride and diamine.
- a polymerization solvent N, N-dimethylformamide, N, N-dimethylacetamide, N-methyl-2-pyrrolidone, 1,3-dimethyl-2-imidazolidinone, N, N′-dimethylpropyleneurea, N, N-dimethyliso Cyclic esters such as butyramide, methoxy-N, N-dimethylpropionamide amides, ⁇ -butyrolactone, ⁇ -valerolactone, ⁇ -valerolactone, ⁇ -caprolactone, ⁇ -caprolactone, ⁇ -methyl- ⁇ -butyrolactone Carbonates such as ethylene carbonate and propylene carbonate, glycols such as triethylene glycol, phenols such as m-cresol and
- the polymerization solvent is preferably used in an amount of 100 parts by mass or more, more preferably 150 parts by mass or more in order to dissolve the resin after the reaction with respect to 100 parts by mass of the obtained resin. Therefore, it is preferable to use 1,900 parts by mass or less, and more preferably 950 parts by mass or less.
- the positive photosensitive resin composition of the present invention comprises (A) an alkali-soluble polyamide, (B) a compound that generates an acid by light (hereinafter, may be abbreviated as (B) component), (C ) A positive photosensitive resin composition containing a thermal crosslinking agent.
- the positive photosensitive resin composition is not limited in its shape as long as these components are contained, and may be, for example, a paste or a sheet.
- the photosensitive sheet of the present invention is not completely cured by applying the photosensitive resin composition of the present invention on a support and drying it at a temperature and time within a range where the solvent can be volatilized.
- the support is not particularly limited, but various commercially available films such as polyethylene terephthalate (PET) film, polyphenylene sulfide film, and polyimide film can be used.
- PET polyethylene terephthalate
- the bonding surface between the support and the photosensitive resin composition may be subjected to a surface treatment such as silicone, a silane coupling agent, an aluminum chelating agent, or polyurea in order to improve adhesion and peelability.
- the thickness of the support is not particularly limited, but is preferably in the range of 10 to 100 ⁇ m from the viewpoint of workability.
- the photosensitive resin composition As a method of applying the photosensitive resin composition to the support, spin coating using a spinner, spray coating, roll coating, screen printing, blade coater, die coater, calendar coater, meniscus coater, bar coater, roll coater, comma roll
- the method include a coater, a gravure coater, a screen coater, and a slit die coater.
- the film thickness after drying is usually 0.5 ⁇ m or more and 100 ⁇ m or less.
- Oven, hot plate, infrared, etc. can be used for drying.
- the drying temperature and the drying time may be in a range where the solvent can be volatilized, and it is preferable to appropriately set a range in which the photosensitive resin composition is in an uncured or semi-cured state. Specifically, it is preferable to carry out from 1 minute to several tens of minutes in the range of 40 ° C to 150 ° C. Moreover, you may heat up in steps combining these temperatures, for example, you may heat-process at 80 degreeC and 90 degreeC for 2 minutes each.
- the photosensitive resin composition of the present invention contains (B) a compound that generates an acid by light, that is, a photosensitive agent.
- the photosensitive agent is a positive type that is solubilized by light, and a quinonediazide compound is preferably used.
- quinonediazide sulfonic acid is ester-bonded to a polyhydroxy compound
- quinonediazide sulfonic acid is sulfonamide-bonded to a polyamino compound
- quinonediazide sulfonic acid is ester-bonded and / or sulfonamide. Examples include those that are combined.
- all the functional groups of these polyhydroxy compounds, polyamino compounds, and polyhydroxypolyamino compounds may not be substituted with quinonediazide, it is preferable that 40 mol% or more of the entire functional groups are substituted with quinonediazide on average. .
- a positive photosensitive resin composition that is sensitive to i-line (wavelength 365 nm), h-line (wavelength 405 nm), and g-line (wavelength 436 nm) of a mercury lamp, which is a general ultraviolet ray. Obtainable.
- Polyhydroxy compounds include Bis-Z, BisP-EZ, TekP-4HBPA, TrisP-HAP, TrisP-PA, TrisP-SA, TrisOCR-PA, BisOCHP-Z, BisP-MZ, BisP-PZ, BisP-IPZ, BisOCP -IPZ, BisP-CP, BisRS-2P, BisRS-3P, BisP-OCHP, Methylenetris-FR-CR, BisRS-26X, DML-MBPC, DML-MBOC, DML-OCHP, DML-PCHP, DML-PC, DML-PTBP, DML-34X, DML-EP, DML-POP, dimethylol-BisOC-P, DML-PFP, DML-PSBP, DML-MTrisPC, TriML-P, TriML-35XL, TML-BP, TML-H , TML-pp-BPF, TML-BPA, TMOM-BP, HML-TPPHBA, HML-TPHAP (
- Polyamino compounds include 1,4-phenylenediamine, 1,3-phenylenediamine, 4,4′-diaminodiphenyl ether, 4,4′-diaminodiphenylmethane, 4,4′-diaminodiphenylsulfone, 4,4′-diaminodiphenyl Examples thereof include, but are not limited to, sulfide.
- examples of the polyhydroxypolyamino compound include 2,2-bis (3-amino-4-hydroxyphenyl) hexafluoropropane, 3,3′-dihydroxybenzidine, and the like, but are not limited thereto.
- the quinonediazide compound contains an ester with a phenol compound and a 4-naphthoquinonediazidesulfonyl group. Thereby, high sensitivity and higher resolution can be obtained by i-line exposure.
- the content of the quinonediazide compound is preferably 1 to 50 parts by mass and more preferably 10 to 40 parts by mass with respect to 100 parts by mass of the resin (A). By setting the content of the quinonediazide compound within this range, higher sensitivity can be achieved. Furthermore, you may add a sensitizer etc. as needed.
- the positive photosensitive resin composition of the present invention may contain (C) a thermal crosslinking agent.
- a thermal crosslinking agent Specifically, a compound having at least two alkoxymethyl groups or methylol groups is preferable. By having at least two of these groups, it is possible to form a crosslinked structure by condensation reaction with the resin and the same kind of molecules. By using in combination with the component (B), a wider range of designs is possible for improving the sensitivity and mechanical properties of the cured film.
- Preferred examples of such a compound include, for example, DML-PC, DML-PEP, DML-OC, DML-OEP, DML-34X, DML-PTBP, DML-PCHP, DML-OCHP, DML-PFP, DML- PSBP, DML-POP, DML-MBOC, DML-MBPC, DML-MTrisPC, DML-BisOC-Z, DMLBisOCHP-Z, DML-BPC, DML-BisOC-P, DMOM-PC, DMOM-PTBP, DMOM-MBPC, TriML-P, TriML-35XL, TML-HQ, TML-BP, TML-pp-BPF, TML-BPE, TML-BPA, TML-BPAF, TML-BPAP, TMOM-BP, TMOM-BPE, TMOM-BPA, TMOM-BPAF, TM M-BPAP, HML-TPPHBA, HML-TPPHAP, HM
- the content of the compound having at least two alkoxymethyl groups or methylol groups is preferably 10 parts by mass or less with respect to 100 parts by mass of the component (A). Within this range, a wide range of designs can be performed more appropriately for improving sensitivity and mechanical properties of the cured film.
- a low molecular compound having a phenolic hydroxyl group may be contained within a range that does not reduce the shrinkage residual film ratio after curing. Thereby, the development time can be shortened.
- Examples of these compounds include Bis-Z, BisP-EZ, TekP-4HBPA, TrisP-HAP, TrisP-PA, BisOCHP-Z, BisP-MZ, BisP-PZ, BisP-IPZ, BisOCP-IPZ, BisP- CP, BisRS-2P, BisRS-3P, BisP-OCHP, Methylenetris-FR-CR, BisRS-26X (trade name, manufactured by Honshu Chemical Industry Co., Ltd.), BIP-PC, BIR-PC, BIR-PTBP BIR-BIPC-F (trade name, manufactured by Asahi Organic Materials Co., Ltd.) and the like. Two or more of these may be contained.
- the content of the low molecular compound having a phenolic hydroxyl group is preferably 1 to 40 parts by mass with respect to 100 parts by mass of the component (A).
- the positive photosensitive resin composition of the present invention preferably contains a solvent.
- Solvents include N-methyl-2-pyrrolidone, ⁇ -butyrolactone, ⁇ -valerolactone, ⁇ -valerolactone, N, N-dimethylformamide, N, N-dimethylacetamide, dimethyl sulfoxide, 1,3-dimethyl-2 -Polar aprotic solvents such as imidazolidinone, N, N'-dimethylpropyleneurea, N, N-dimethylisobutyramide, methoxy-N, N-dimethylpropionamide, tetrahydrofuran, dioxane, propylene glycol monomethyl ether, propylene Ethers such as glycol monoethyl ether, ketones such as acetone, methyl ethyl ketone, diisobutyl ketone, ethyl acetate, butyl acetate, isobutyl a
- the content of the solvent is preferably 100 parts by mass or more in order to dissolve the composition with respect to 100 parts by mass of the component (A), and 1,500 masses to form a coating film having a thickness of 1 ⁇ m or more. It is preferable to contain a part or less.
- the positive photosensitive resin composition of the present invention is a surfactant, esters such as ethyl lactate and propylene glycol monomethyl ether acetate, alcohols such as ethanol, cyclohexanone for the purpose of improving the wettability with the substrate as necessary. , Ketones such as methyl isobutyl ketone, and ethers such as tetrahydrofuran and dioxane.
- the positive photosensitive resin composition of the present invention as a silicon component in a range not impairing the storage stability, trimethoxyaminopropylsilane, trimethoxyepoxysilane, trimethoxyvinylsilane, A silane coupling agent such as trimethoxythiolpropylsilane may be contained.
- a preferred content is 0.01 to 5 parts by mass with respect to 100 parts by mass of component (A).
- the positive photosensitive resin composition of the present invention may contain other alkali-soluble resins in addition to the component (A).
- alkali-soluble polyimide, polybenzoxazole, acrylic polymer copolymerized with acrylic acid, novolak resin, siloxane resin, and the like can be given.
- Such a resin is soluble in an alkaline solution such as tetramethylammonium hydroxide, choline, triethylamine, dimethylaminopyridine, monoethanolamine, diethylaminoethanol, sodium hydroxide, potassium hydroxide, and sodium carbonate.
- the viscosity of the positive photosensitive resin composition of the present invention is preferably 2 to 5,000 mPa ⁇ s.
- the solid content concentration so that the viscosity is 2 mPa ⁇ s or more, it becomes easy to obtain a desired film thickness.
- the viscosity is 5,000 mPa ⁇ s or less, it becomes easy to obtain a highly uniform coating film.
- a positive photosensitive resin composition having such a viscosity can be easily obtained, for example, by setting the solid content concentration to 5 to 60% by mass.
- the positive photosensitive resin composition of the present invention contains a compound represented by the following general formula (D) (3) (hereinafter, may be abbreviated as (D) compound), and is a film after heat curing. And the metal material, especially copper, the adhesiveness is remarkably improved. This is due to the fact that the S and N atoms of the compound represented by the general formula (3) interact with the metal surface, and further a three-dimensional structure that easily interacts with the metal surface. To do. By these effects, it is possible to obtain a cured resin film that imparts photosensitivity to the resin composition and has excellent adhesion to a metal material even in a composition having an additive.
- D general formula
- R 7 to R 9 each represent an O atom, an S atom, or an N atom, and at least one of R 7 to R 9 represents an S atom.
- l represents 0 or 1
- m and n represent integers of 0 to 2.
- R 10 to R 12 each independently represents a hydrogen atom or an organic group having 1 to 20 carbon atoms.
- R 10 to R 12 include a hydrogen atom, alkyl group, cycloalkyl group, alkoxy group, alkyl ether group, alkylsilyl group, alkoxysilyl group, aryl group, aryl ether group, carboxyl group, carbonyl group, allyl group, vinyl A group, a heterocyclic group, a combination thereof, and the like, and may further have a substituent.
- the addition amount of the compound represented by (D) the general formula (3) is preferably 0.1 to 10 parts by weight with respect to 100 parts by weight of the (A) alkali-soluble polyamide.
- the addition amount is less than 0.1 parts by weight, it is difficult to obtain an effect of improving the adhesion to the metal material.
- the addition amount is more than 10 parts by weight, the sensitivity of the resin composition is lowered due to the interaction with the photosensitive agent. There is a risk of inviting.
- the addition amount of the compound represented by the general formula (3) is 0.5 to 3.0 parts by weight.
- R 7 to R 9 each represents an O atom, an S atom, or an N atom, and at least one of R 7 to R 9 One is preferably an S atom.
- the sensitivity may be impaired due to the interaction between the photosensitizer and the N atom-containing compound. The effect of improving the adhesion can be obtained without lowering.
- Examples of the compound represented by the general formula (3) include the following, but are not limited to the following structures.
- varnish is applied on the substrate.
- the coating method include spin coating using a spinner, spray coating, roll coating, and screen printing.
- the coating film thickness varies depending on the coating technique, the solid content concentration and the viscosity of the resin composition, etc., but it is usually preferable that the coating film thickness is 0.5 ⁇ m or more and 100 ⁇ m or less after drying.
- the substrate coated with the photosensitive resin composition varnish is dried to obtain a photosensitive resin composition film. For drying, an oven, a hot plate, infrared rays, or the like can be used.
- the drying temperature and drying time may be in a range where the organic solvent can be volatilized, and it is preferable to appropriately set a range in which the photosensitive resin composition film is in an uncured or semi-cured state. Specifically, it is preferably performed in the range of 50 to 150 ° C. for 1 minute to several hours.
- thermocompression bonding can be performed by a heat press process, a heat laminating process, a heat vacuum laminating process, or the like.
- the bonding temperature is preferably 40 ° C. or higher from the viewpoint of adhesion to the substrate and embedding. Further, the bonding temperature is preferably 150 ° C. or lower in order to prevent the photosensitive sheet from being cured at the time of bonding and the pattern formation resolution in the exposure / development process from being deteriorated.
- examples of the substrate used include silicon wafers, ceramics, gallium arsenide, organic circuit substrates, inorganic circuit substrates, and those in which circuit constituent materials are arranged on these substrates. It is not limited to these.
- organic circuit boards include: glass substrate copper-clad laminates such as glass cloth / epoxy copper-clad laminates, composite copper-clad laminates such as glass nonwoven fabrics / epoxy copper-clad laminates, polyetherimide resin substrates, polyethers
- examples include heat-resistant / thermoplastic substrates such as ketone resin substrates and polysulfone resin substrates, polyester copper-clad film substrates, and polyimide copper-clad film substrates.
- Examples of the inorganic circuit board include ceramic substrates such as an alumina substrate, an aluminum nitride substrate, and a silicon carbide substrate, and metal substrates such as an aluminum base substrate and an iron base substrate.
- Examples of circuit components include conductors containing metals such as silver, gold and copper, resistors containing inorganic oxides, low dielectrics containing glass materials and / or resins, resins and high Examples thereof include high dielectric materials containing dielectric constant inorganic particles, insulators containing glass-based materials, and the like.
- the photosensitive resin film formed by the above method is irradiated with actinic radiation through a mask having a desired pattern and exposed.
- Actinic rays used for exposure include ultraviolet rays, visible rays, electron beams, X-rays, etc.
- ultraviolet rays such as i rays (365 nm), h rays (405 nm), and g rays (436 nm) of mercury lamps are used. Is preferred.
- the photosensitive sheet when the support is made of a material transparent to these rays, the exposure may be performed without peeling the support from the photosensitive sheet.
- aqueous solution of a compound exhibiting alkalinity such as dimethylaminoethyl methacrylate, cyclohexylamine, ethylenediamine, hexamethylenediamine and the like is preferable.
- these alkaline aqueous solutions may contain polar solvents such as N-methyl-2-pyrrolidone, N, N-dimethylformamide, N, N-dimethylacetamide, dimethyl sulfoxide, ⁇ -butyrolactone, dimethylacrylamide, methanol, ethanol, Contains alcohols such as isopropanol, esters such as ethyl lactate and propylene glycol monomethyl ether acetate, ketones such as cyclopentanone, cyclohexanone, isobutyl ketone, and methyl isobutyl ketone alone or in combination of several kinds Good.
- polar solvents such as N-methyl-2-pyrrolidone, N, N-dimethylformamide, N, N-dimethylacetamide, dimethyl sulfoxide, ⁇ -butyrolactone, dimethylacrylamide, methanol, ethanol, Contains alcohols such as isopropanol, esters such as ethy
- Development can be carried out by spraying the developer on the coating surface, immersing in the developer, applying ultrasonic waves while immersing, or spraying the developer while rotating the substrate.
- the development conditions such as the development time and the temperature of the developing step developer may be any conditions that remove the exposed area.
- the exposed area is used to process a fine pattern or remove residues between patterns. It is preferable to further develop after the removal.
- Rinsing with water may be performed after development.
- alcohols such as ethanol and isopropyl alcohol
- esters such as ethyl lactate and propylene glycol monomethyl ether acetate may be added to water for rinsing treatment.
- This temperature is preferably in the range of 50 to 180 ° C, and more preferably in the range of 80 to 150 ° C.
- the time is preferably 5 seconds to several hours.
- heat drying may be performed in the range of 70 to 150 ° C.
- the time is preferably 1 minute to several hours.
- the substrate on which the patterned photosensitive resin film thus obtained is formed is cured at a temperature of 150 ° C. to 450 ° C.
- This heat treatment is carried out for 5 minutes to 10 hours by selecting the temperature and increasing the temperature stepwise or by selecting a certain temperature range and continuously increasing the temperature.
- a method of performing heat treatment at 110 ° C. and 250 ° C. for 60 minutes each, a method of linearly raising the temperature from room temperature to 220 ° C. over 2 hours, and the like can be mentioned.
- the heat treatment is more preferably performed at 150 ° C. or higher.
- the photosensitive resin composition in the present invention can provide a cured film excellent in adhesion and chemical resistance even at low temperature baking of 250 ° C. or lower.
- the cured film obtained by curing the photosensitive resin composition or photosensitive sheet of the present invention can be used for electronic parts such as semiconductor devices.
- the semiconductor device referred to in the present invention refers to all devices that can function by utilizing the characteristics of semiconductor elements.
- An electro-optical device and a semiconductor circuit substrate in which a semiconductor element is connected to a substrate, a stack of a plurality of semiconductor elements, and an electronic device including these are all included in the semiconductor device. Further, electronic components such as a multilayer wiring board for connecting semiconductor elements are also included in the semiconductor device.
- a semiconductor passivation film, a surface protection film of a semiconductor element, an interlayer insulating film between a semiconductor element and a wiring, an interlayer insulating film between a plurality of semiconductor elements, and an interlayer between wiring layers of a multilayer wiring for high-density mounting Although used suitably for uses, such as an insulating film and an insulating layer of an organic electroluminescent element, it is not restricted to this but can be used for various uses.
- FIG. 1 is an enlarged cross-sectional view of a pad portion of a semiconductor device having bumps.
- a passivation film 3 is formed on an input / output Al pad 2 in a silicon wafer 1, and a via hole is formed in the passivation film 3.
- an insulating film 4 formed using the photosensitive resin composition of the present invention is formed thereon, and further a metal film 5 made of Cr, Ti or the like is formed so as to be connected to the Al pad 2. Yes.
- the pads are insulated from each other.
- a barrier metal 8 and a solder bump 10 are formed on the insulated pad.
- the photosensitive resin composition of the present invention is applied to the silicon wafer 1 on which the Al pad 2 and the passivation film 3 are formed, and a patterned insulating film 4 is formed through a photolithography process.
- the metal film 5 is formed by the sputtering method.
- a metal wiring 6 is formed on the metal film 5 by a plating method.
- the photosensitive resin composition of the present invention is applied, and an insulating film 7 is formed as a pattern as shown in 2d of FIG. 2 through a photolithography process.
- a wiring can be further formed on the insulating film 7.
- rewiring in the case of forming a multilayer wiring structure having two or more layers, by repeating the above process, two or more layers of rewiring were separated by an interlayer insulating film obtained from the photosensitive resin composition of the present invention.
- a multilayer wiring structure can be formed.
- the formed insulating film will come into contact with various chemicals multiple times, but since the insulating film obtained from the photosensitive resin composition of the present invention is excellent in adhesion and chemical resistance, A good multilayer wiring structure can be formed.
- There is no upper limit to the number of layers in the multilayer wiring structure but 10 or fewer layers are often used.
- a barrier metal 8 and a solder bump 10 are formed. Then, the wafer is diced along the scribe line 9 and cut into chips. If the insulating film 7 has no pattern formed on the scribe line 9 or a residue remains, cracks or the like occur during dicing, which affects the reliability of the chip. For this reason, it is very preferable to provide pattern processing excellent in thick film processing as in the present invention in order to obtain high reliability of the semiconductor device.
- the photosensitive resin composition and photosensitive sheet of the present invention are also suitably used for fan-out wafer level packages (fan-out WLP).
- the fan-out WLP is provided with an extended portion using a sealing resin such as epoxy resin around the semiconductor chip, rewiring from the electrode on the semiconductor chip to the extended portion, and mounting a solder ball on the extended portion.
- a sealing resin such as epoxy resin around the semiconductor chip
- rewiring from the electrode on the semiconductor chip to the extended portion and mounting a solder ball on the extended portion.
- This is a semiconductor package that secures the necessary number of terminals.
- wiring is installed so as to straddle the boundary line formed by the main surface of the semiconductor chip and the main surface of the sealing resin.
- an interlayer insulating film is formed on a base material composed of two or more materials such as a semiconductor chip provided with metal wiring and a sealing resin, and wiring is formed on the interlayer insulating film.
- wiring is installed so as to straddle the boundary line between the main surface of the semiconductor chip and the main surface of the printed circuit board.
- an interlayer insulating film is formed on a substrate composed of two or more materials, and wiring is formed on the interlayer insulating film.
- the cured film formed by curing the photosensitive resin composition or photosensitive sheet of the present invention has a high adhesion to a semiconductor chip provided with metal wiring, and also has a high adhesion to an epoxy resin or the like on a sealing resin. Therefore, it is suitably used as an interlayer insulating film provided on a substrate composed of two or more materials.
- the sensitivity is 500 mJ / cm 2 or more, or the exposed portion is not completely dissolved and there is a residue (1), and the one having 300 mJ / cm 2 or more and less than 500 mJ / cm 2 is good ( 2) Those with less than 300 mJ / cm 2 were considered very good (3).
- the varnish was applied by spin coating using a coating / developing apparatus ACT-8 so that the film thickness after pre-baking on a silicon wafer at 120 ° C. for 3 minutes was 10 ⁇ m and pre-baked. Then, using an inert oven CLH-21CD-S, the temperature was raised to 220 ° C. at a temperature rising rate of 3.5 ° C./min with an oxygen concentration of 20 ppm or less under a nitrogen stream, and heat treatment was performed at 220 ° C. for 1 hour. . When the temperature reached 50 ° C. or lower, the silicon wafer was taken out, and the cured film was measured with a stress device FLX2908 (manufactured by KLA Tencor). When the result is 30 MPa or more, the result is 1, 2 when the result is 20 MPa or more and less than 30 MPa, and 3 when the result is less than 20 MPa.
- the wafer was taken out and immersed in 45% by mass of hydrofluoric acid for 5 minutes to peel off the resin composition film from the wafer.
- This film was cut into strips having a width of 1 cm and a length of 9 cm, and using Tensilon RTM-100 (manufactured by Orientec Co., Ltd.) at a room temperature of 23.0 ° C. and a humidity of 45.0% RH, a tensile rate of 50 mm /
- the sample was pulled in minutes and the elongation at break was measured. The measurement was performed on 10 strips per specimen, and the average value of the top 5 points was obtained from the results.
- the elongation value at break was 60% or more, 3, 30% or more and less than 60%, 2 and less than 30%.
- Adhesion test An adhesion test with a metal material was performed by the following method.
- a substrate (copper sputter substrate) was prepared by sputtering copper on a silicon wafer and having a metal material layer formed on each surface with a thickness of 200 to 500 nm. Varnish was applied onto this substrate by spin coating using a spinner (Mikasa Co., Ltd.) and then baked at 120 ° C. for 3 minutes using a hot plate (D-SPIN manufactured by Dainippon Screen Mfg. Co., Ltd.). Finally, a pre-baked film having a thickness of 8 ⁇ m was produced. Using a clean oven (CLH-21CD-S manufactured by Koyo Thermo System Co., Ltd.), these membranes were heated at 110 ° C. for 30 minutes under a nitrogen stream (oxygen concentration of 20 ppm or less), then further heated to 220 ° C. Curing was performed for 1 hour to obtain a cured photosensitive resin film.
- 1,12-diaminododecane (5.01 g, 0.025 mol), 1,3-bis (3-aminopropyl) tetramethyldisiloxane (1.24 g, 0.0050 mol), PBOM (14. 33 g, 0.044 mol) was added together with 30 g of NMP and reacted at 85 ° C. for 1 hour.
- 5-norbornene-2,3-dicarboxylic acid anhydride (3.94 g, 0.024 mol) was added as a terminal blocking agent together with 10 g of NMP and reacted at 85 ° C. for 30 minutes.
- the mixture was cooled to room temperature, acetic acid (26.41 g, 0.50 mol) was added together with 58 g of NMP, and the mixture was stirred at room temperature for 1 hour. After stirring, the solution was poured into 3 L of water to obtain a white precipitate. This precipitate was collected by filtration, washed with water three times, and then dried for 3 days in a ventilator at 50 ° C. to obtain an alkali-soluble polyamide resin (A-1) powder.
- the resin (A-1) had a weight average molecular weight of 33,000 and PDI of 2.1.
- Synthesis Example 2 Synthesis of Alkali-Soluble Polyamide Resin (A-2) According to Synthesis Example 1, BAHF (25.64 g, 0.070 mol), PBOM (31.53 g, 0.088 mol), D containing a propylene oxide structure -400 (10.00 g, 0.025 mol), 1,3-bis (3-aminopropyl) tetramethyldisiloxane (1.24 g, 0.0050 mol), 5-norbornene-2,3-dicarboxylic acid anhydride Product (3.94 g, 0.024 mol), acetic acid (26.41 g, 0.50 mol) and 300 g of NMP were used in the same manner to obtain an alkali-soluble polyamide resin (A-2) powder. As a result of evaluation by the above method, the resin (A-2) had a weight average molecular weight of 34,000 and PDI of 2.2.
- Synthesis Example 3 Synthesis of Alkali-Soluble Polyamide Resin (A-3) According to Synthesis Example 1, BAHF (25.64 g, 0.070 mol), PBOM (31.53 g, 0.088 mol), ethylene oxide and propylene oxide structures ED-600 containing (15.00 g, 0.025 mol), 1,3-bis (3-aminopropyl) tetramethyldisiloxane (1.24 g, 0.0050 mol), 5-norbornene-2,3-dicarboxylic acid The same procedure was performed using acid anhydride (3.94 g, 0.024 mol), acetic acid (26.41 g, 0.50 mol), and 300 g of NMP to obtain an alkali-soluble polyamide resin (A-3) powder. As a result of evaluation by the above method, the resin (A-3) had a weight average molecular weight of 34,000 and PDI of 2.3.
- Synthesis Example 4 Synthesis of Alkali-Soluble Polyamide Resin (A-4) According to Synthesis Example 1, BAHF (25.64 g, 0.070 mol), PBOM (31.53 g, 0.088 mol), ethylene oxide and propylene oxide structures Contains ED-900 (22.50 g, 0.025 mol), 1,3-bis (3-aminopropyl) tetramethyldisiloxane (1.24 g, 0.0050 mol), 5-norbornene-2,3-dicarboxylic The same procedure was performed using acid anhydride (3.94 g, 0.024 mol), acetic acid (26.41 g, 0.50 mol), and 300 g of NMP to obtain an alkali-soluble polyamide resin (A-4) powder. As a result of evaluation by the above methods, the resin (A-4) had a weight average molecular weight of 41,000 and PDI of 2.4.
- Synthesis Example 5 Synthesis of Alkali-Soluble Polyamide Resin (A-5) According to Synthesis Example 1, BAHF (12.82 g, 0.035 mol), 3,3′-diamino-4,4′-dihydroxydiphenylsulfone (hereinafter DABS) (9.81 g, 0.035 mol), PBOM (31.53 g, 0.088 mol), ED-900 (22.50 g, 0.025 mol), 1,3-bis (3-aminopropyl) ) Tetramethyldisiloxane (1.24 g, 0.0050 mol), 5-norbornene-2,3-dicarboxylic anhydride (3.94 g, 0.024 mol), acetic acid (26.41 g, 0.50 mol) The same procedure was performed using 300 g of NMP to obtain an alkali-soluble polyamide resin (A-5) powder. As a result of evaluation by the above method, the resin (A-5) had a weight average mo
- Synthesis Example 6 Synthesis of Alkali-Soluble Polyamide Resin (A-6) According to Synthesis Example 1, BAHF (25.64 g, 0.070 mol), PBOM (31.53 g, 0.088 mol), propylene oxide and tetramethylene oxide RT-1000 including structure (25.00 g, 0.025 mol), 1,3-bis (3-aminopropyl) tetramethyldisiloxane (1.24 g, 0.0050 mol), 5-norbornene-2,3 -Dicarboxylic acid anhydride (3.94 g, 0.024 mol), acetic acid (26.41 g, 0.50 mol) and NMP 300 g were used in the same manner to obtain an alkali-soluble polyamide resin (A-6) powder. . As a result of evaluation by the above method, the resin (A-6) had a weight average molecular weight of 37,000 and PDI of 1.8.
- Synthesis Example 7 Synthesis of Alkali-Soluble Polyamide Resin (A-7) According to Synthesis Example 1, BAHF (27.47 g, 0.075 mol), PBOM (31.53 g, 0.088 mol), RT-1000 (20. 00 g, 0.020 mol), 1,3-bis (3-aminopropyl) tetramethyldisiloxane (1.24 g, 0.0050 mol), 5-norbornene-2,3-dicarboxylic acid anhydride (3.94 g) 0.024 mol), acetic acid (26.41 g, 0.50 mol) and 300 g of NMP were used in the same manner to obtain an alkali-soluble polyamide resin (A-7) powder. As a result of evaluation by the above method, the resin (A-7) had a weight average molecular weight of 44,000 and PDI of 2.2.
- Synthesis Example 8 Synthesis of Alkali-Soluble Polyamide Resin (A-8) According to Synthesis Example 1, BAHF (25.64 g, 0.070 mol), PBOM (31.53 g, 0.088 mol), ethylene oxide and propylene oxide structures Contains ED-2003 (50.00 g, 0.025 mol), 1,3-bis (3-aminopropyl) tetramethyldisiloxane (1.24 g, 0.0050 mol), 5-norbornene-2,3-dicarboxylic The same procedure was performed using acid anhydride (3.94 g, 0.024 mol), acetic acid (26.41 g, 0.50 mol) and 300 g of NMP to obtain an alkali-soluble polyamide resin (A-8) powder. As a result of evaluation by the above method, the weight average molecular weight of the resin (A-8) was 52,000, and the PDI was 2.1.
- Synthesis Example 9 Synthesis of Alkali-Soluble Polyamide Resin (A-9) According to Synthesis Example 1, BAHF (34.79 g, 0.095 mol), PBOM (31.53 g, 0.088 mol), 1,3-bis ( 3-aminopropyl) tetramethyldisiloxane (1.24 g, 0.0050 mol), 5-norbornene-2,3-dicarboxylic anhydride (3.94 g, 0.024 mol), acetic acid (26.41 g, 0 .50 mol) and 300 g of NMP were carried out in the same manner to obtain an alkali-soluble polyamide resin (A-9) powder. As a result of evaluation by the above method, the resin (A-9) had a weight average molecular weight of 38,000 and PDI of 1.6.
- Synthesis Example 10 Synthesis of Alkali-Soluble Polyamide Resin (A-10) According to Synthesis Example 1, BAHF (12.82 g, 0.035 mol), PBOM (31.53 g, 0.088 mol), RT-1000 (120. 00 g, 0.060 mol), 1,3-bis (3-aminopropyl) tetramethyldisiloxane (1.24 g, 0.0050 mol), 5-norbornene-2,3-dicarboxylic anhydride (3.94 g) 0.024 mol), acetic acid (26.41 g, 0.50 mol) and 300 g of NMP were used in the same manner to obtain an alkali-soluble polyamide resin (A-10) powder. As a result of evaluation by the above method, the resin (A-10) had a weight average molecular weight of 43,000 and PDI of 2.5.
- the resulting resin was cooled to room temperature to obtain a novolak resin (A-11) powder, and as a result of evaluation by the above method, the resin (A-11) had a weight average molecular weight of 3,500 and a PDI of 2.8. So .
- Synthesis Example 12 Synthesis of Polybenzoxazole Precursor (A-12) 100 g of N-methylpyrrolidone was charged under a dry nitrogen stream, and 2,2-bis (3-amino-4-hydroxyphenyl) hexafluoropropane (32.96 g) was charged. 0.090 mol) and m-aminophenol (2.18 g, 0.020 mol) were added and dissolved by stirring at room temperature, and then the dodecanedioic acid dichloride was maintained while maintaining the temperature of the reaction solution at ⁇ 10 to 0 ° C.
- the resin (A-13) had a weight average molecular weight of 27,000 and a PDI of 2.0.
- Example 9 To 10 g of the obtained resin (A-6), 2.0 g of a photoacid generator represented by the following formula as a component (B) and 20 g of ⁇ -butyrolactone as a solvent were added to prepare a varnish. It measured by the evaluation method. The obtained results are shown in Table 1.
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Abstract
Description
[1]脂肪族ジアミンに由来する有機基を有するアルカリ可溶性樹脂を含むことを特徴とする感光性樹脂組成物。
[2]前記脂肪族ジアミンに由来する有機基を有するアルカリ可溶性樹脂が、(A)一般式(1)で表されるアルカリ可溶性ポリアミドである、[1]に記載の感光性樹脂組成物。
[3]前記一般式(1)中のY2が、一般式(2)で表される構造単位を有する[1]または[2]に記載の感光性樹脂組成物。
[4]前記一般式(1)中のY2が、150以上かつ2,000以下の分子量を有する[1]~[3]のいずれかに記載の感光性樹脂組成物。
[5]前記(A)一般式(1)で表されるアルカリ可溶性ポリアミド、(B)光により酸を発生する化合物、および(C)熱架橋剤を含有する[1]~[4]のいずれかに記載の感光性樹脂組成物。
[6]さらに、(D)一般式(3)で表される化合物を含有する、[1]~[5]のいずれかに記載の感光性樹脂組成物。
[7][1]~[6]のいずれかに記載の感光性樹脂組成物から形成された感光性シート。
[8][1]~[6]のいずれかに記載の感光性樹脂組成物を基材上に塗布し、乾燥する工程を含む、感光性シートの製造方法。
[9][1]~[6]のいずれかに記載の感光性樹脂組成物を硬化した硬化膜。
[10][7]に記載の感光性シートを硬化した硬化膜。
[11][9]に記載の硬化膜が配置された、層間絶縁膜または半導体保護膜。
[12][1]~[6]のいずれかに記載の感光性樹脂組成物を基板上に塗布し、乾燥して感光性樹脂膜を形成する工程と、マスクを介して露光する工程と、照射部をアルカリ溶液で溶出または除去する工程と、および現像後の感光性樹脂膜を加熱処理する工程により得られることを特徴とする硬化レリーフパターンの製造方法。
[13][7]に記載の感光性シートまたは[8]に記載の方法により製造された感光性シートを基材上にラミネートした後に紫外線照射工程と現像工程を経てパターンを形成し、さらに加熱して硬化膜のレリーフパターン層を形成することを特徴とする半導体電子部品または半導体装置の製造方法。
[14][9]または[10]に記載の硬化膜のレリーフパターン層を有することを特徴とする半導体電子部品または半導体装置。
[15][9]または[10]に記載の硬化膜が再配線間の層間絶縁膜として配置された、半導体電子部品または半導体装置。
[16]前記再配線と層間絶縁膜が2~10層繰り返し配置された、[15]に記載の半導体電子部品または半導体装置。
[17][9]または[10]に記載の硬化膜が2種以上の材質で構成される隣接する基板の層間絶縁膜として配置された、半導体電子部品または半導体装置。
X1(COZ)2及びX2(COZ)2の構造を有するジカルボン酸誘導体としては、Zが炭素数1~12の有機基、もしくはハロゲン元素から選ばれた基であり、下記の構造式から選ばれた基であることが好ましい。
Y1(NH2)2(OH)2の構造を有するアミノフェノールとしては、例えば、ビス(3-アミノ-4-ヒドロキシフェニル)ヘキサフルオロプロパン、ビス(3-アミノ-4-ヒドロキシフェニル)スルホン、ビス(3-アミノ-4-ヒドロキシフェニル)プロパン、ビス(3-アミノ-4-ヒドロキシフェニル)メチレン、ビス(3-アミノ-4-ヒドロキシフェニル)エーテル、ビス(3-アミノ-4-ヒドロキシ)ビフェニル、ビス(3-アミノ-4-ヒドロキシフェニル)フルオレンなどのヒドロキシル基含有ジアミンなどを挙げることができる。また、これら2種以上のジアミン成分を組み合わせて用いてもよい。
(A)成分の樹脂の分子量は、GPC(ゲルパーミエーションクロマトグラフィー)装置Waters2690-996(日本ウォーターズ(株)製)を用い、展開溶媒をN-メチル-2-ピロリドン(以降NMPと呼ぶ)として測定し、ポリスチレン換算で重量平均分子量(Mw)及び分散度(PDI=Mw/Mn)を計算した。(A)成分の樹脂におけるY2成分の分子量は、Y2構造を含むジアミンモノマーに関して、LC-MS(Q Exactive、Thermo SCIENTIFIC, Inc.製)で測定し、主要シグナルの分子量として求めることができる。
ワニスを、120℃で3分間プリベーク後の膜厚が10μmになるように、8インチのシリコンウエハ上に塗布現像装置ACT-8(東京エレクトロン製)を用いてスピンコート法で塗布した。プリベーク後の基板を露光機i線ステッパーNSR-2005i9C(ニコン製)を用いて露光した。露光後、ACT-8の現像装置を用いて、2.38質量%のテトラメチルアンモニウム溶液(以下TMAH、多摩化学工業製)を用いてパドル法で現像液の吐出時間10秒、パドル時間40秒の現像を2回繰り返し、その後純水でリンス後、振り切り乾燥し、露光部が完全に溶解している時の最低露光量を感度とした。その結果が、感度が500mJ/cm2以上であるもの、または露光部が完全に溶解せず残渣があるものを不十分(1)、300mJ/cm2以上500mJ/cm2未満のものを良好(2)、300mJ/cm2未満のものをきわめて良好(3)とした。
ワニスを、シリコンウエハ上に120℃で3分間プリベークを行った後の膜厚が10μmとなるように塗布現像装置ACT-8を用いてスピンコート法で塗布し、プリベークした後、イナートオーブンCLH-21CD-Sを用いて、窒素気流下において酸素濃度20ppm以下で毎分3.5℃の昇温速度で220℃まで昇温し、220℃で1時間加熱処理を行なった。温度が50℃以下になったところでシリコンウエハを取り出し、その硬化膜をストレス装置FLX2908(KLA Tencor社製)にて測定した。その結果が、30MPa以上のものを1、20MPa以上30MPa未満の場合は2、20MPa未満のものは3とした。
ワニスを8インチのシリコンウエハ上に、120℃で3分間のプリベーク後の膜厚が11μmとなるように塗布現像装置ACT-8を用いてスピンコート法で塗布およびプリベークした後、イナートオーブンCLH-21CD-S(光洋サーモシステム(株)製)を用いて、酸素濃度20ppm以下で3.5℃/分で220℃まで昇温し、220℃で1時間加熱処理を行なった。温度が50℃以下になったところでウエハを取り出し、45質量%のフッ化水素酸に5分間浸漬することで、ウエハより樹脂組成物の膜を剥がした。この膜を幅1cm、長さ9cmの短冊状に切断し、テンシロンRTM-100((株)オリエンテック製)を用いて、室温23.0℃、湿度45.0%RH下で引張速度50mm/分で引っ張り、破断点伸度の測定を行なった。測定は1検体につき10枚の短冊について行ない、結果から上位5点の平均値を求めた。破断点伸度の値が60%以上のものを3、30%以上60%未満のものを2、30%未満のものを1とした。
次の方法にて金属材料との接着性試験を行なった。
シリコンウエハ上に銅をスパッタリングし、それぞれ200~500nmの厚みで形成された金属材料層を表面に有する基板(銅スパッタ基板)を用意した。この基板上にワニスをスピンナー(ミカサ(株)製)を用いてスピンコート法で塗布し、次いでホットプレート(大日本スクリーン製造(株)製D-SPIN)を用いて120℃で3分ベークし、最終的に厚さ8μmのプリベーク膜を作製した。これらの膜をクリーンオーブン(光洋サーモシステム(株)製CLH-21CD-S)を用いて、窒素気流下(酸素濃度20ppm以下)、110℃で30分、次いでさらに昇温して220℃にて1時間キュアし、感光性樹脂硬化膜を得た。
基板を2分割し、それぞれの基板についてキュア後の膜に片刃を使用して2mm間隔で10行10列の碁盤目状の切り込みをいれた。このうち一方のサンプル基板を用い、セロテープ(登録商標)による引き剥がしによって100マスのうち何マス剥がれたかを計数し、金属材料/樹脂硬化膜間の接着性の評価を行なった。また、もう一方のサンプル基板については、プレッシャークッカーテスト(PCT)装置(タバイエスペエック(株)製HAST CHAMBER EHS-211MD)を用いて121℃、2気圧の飽和条件で200時間PCT処理を行なった後、上記の引き剥がしテストを行なった。いずれの基板についても引き剥がしテストで剥がれ個数が10未満を2(良好)、10以上を1(不良)とした。
大日本スクリーン製造(株)製ラムダエースSTM-602を使用し、プリベーク後、現像後の膜は屈折率1.629として、キュア後の膜は屈折率1.773として測定した。
乾燥窒素気流下、2,2-ビス(3-アミノ-4-ヒドロキシフェニル)ヘキサフルオロプロパン(以降BAHFと呼ぶ)(25.64g、0.070モル)をNMP185gに溶解させた。ここに、1,1’-(4,4’-オキシベンゾイル)ジイミダゾール(以降PBOMと呼ぶ)(17.20g、0.048モル)をNMP20gとともに加えて、85℃で3時間反応させた。続いて、1,12-ジアミノドデカン(5.01g、0.025モル)、1,3-ビス(3-アミノプロピル)テトラメチルジシロキサン(1.24g、0.0050モル)、PBOM(14.33g、0.044モル)をNMP30gとともに加えて、85℃で1時間反応させた。さらに、末端封止剤として、5-ノルボルネン-2,3-ジカルボン酸無水物(3.94g、0.024モル)をNMP10gとともに加えて、85℃で30分反応させた。反応終了後、室温まで冷却し、酢酸(26.41g、0.50モル)をNMP58gとともに加えて、室温で1時間撹拌した。撹拌終了後、溶液を水3Lに投入して白色沈殿を得た。この沈殿を濾過で集めて、水で3回洗浄した後、50℃の通風乾燥機で3日間乾燥し、アルカリ可溶性ポリアミド樹脂(A-1)の粉末を得た。上記の方法で評価した結果、樹脂(A-1)の重量平均分子量は33,000、PDIは2.1であった。
前記合成例1に従って、BAHF(25.64g、0.070モル)、PBOM(31.53g、0.088モル)、プロピレンオキシド構造を含むD-400(10.00g、0.025モル)、1,3-ビス(3-アミノプロピル)テトラメチルジシロキサン(1.24g、0.0050モル)、5-ノルボルネン-2,3-ジカルボン酸無水物(3.94g、0.024モル)、酢酸(26.41g、0.50モル)、NMP300gを用いて同様に行い、アルカリ可溶性ポリアミド樹脂(A-2)の粉末を得た。上記の方法で評価した結果、樹脂(A-2)の重量平均分子量は34,000、PDIは2.2であった。
前記合成例1に従って、BAHF(25.64g、0.070モル)、PBOM(31.53g、0.088モル)、エチレンオキシド及びプロピレンオキシド構造を含むED-600(15.00g、0.025モル)、1,3-ビス(3-アミノプロピル)テトラメチルジシロキサン(1.24g、0.0050モル)、5-ノルボルネン-2,3-ジカルボン酸無水物(3.94g、0.024モル)、酢酸(26.41g、0.50モル)、NMP300gを用いて同様に行い、アルカリ可溶性ポリアミド樹脂(A-3)の粉末を得た。上記の方法で評価した結果、樹脂(A-3)の重量平均分子量は34,000、PDIは2.3であった。
前記合成例1に従って、BAHF(25.64g、0.070モル)、PBOM(31.53g、0.088モル)、エチレンオキシド及びプロピレンオキシド構造を含むED-900(22.50g、0.025モル)、1,3-ビス(3-アミノプロピル)テトラメチルジシロキサン(1.24g、0.0050モル)、5-ノルボルネン-2,3-ジカルボン酸無水物(3.94g、0.024モル)、酢酸(26.41g、0.50モル)、NMP300gを用いて同様に行い、アルカリ可溶性ポリアミド樹脂(A-4)の粉末を得た。上記の方法で評価した結果、樹脂(A-4)の重量平均分子量は41,000、PDIは2.4であった。
前記合成例1に従って、BAHF(12.82g、0.035モル)、3,3’-ジアミノ-4,4’-ジヒドロキシジフェニルスルホン
(以降DABSと呼ぶ)(9.81g、0.035モル)、PBOM(31.53g、0.088モル)、ED-900(22.50g、0.025モル)、1,3-ビス(3-アミノプロピル)テトラメチルジシロキサン(1.24g、0.0050モル)、5-ノルボルネン-2,3-ジカルボン酸無水物(3.94g、0.024モル)、酢酸(26.41g、0.50モル)、NMP300gを用いて同様に行い、アルカリ可溶性ポリアミド樹脂(A-5)の粉末を得た。上記の方法で評価した結果、樹脂(A-5)の重量平均分子量は51,000、PDIは2.4であった。
前記合成例1に従って、BAHF(25.64g、0.070モル)、PBOM(31.53g、0.088モル)、プロピレンオキシド及びテトラメチレンオキシド構造を含むRT-1000(25.00g、0.025モル)、1,3-ビス(3-アミノプロピル)テトラメチルジシロキサン(1.24g、0.0050モル)、5-ノルボルネン-2,3-ジカルボン酸無水物(3.94g、0.024モル)、酢酸(26.41g、0.50モル)、NMP300gを用いて同様に行い、アルカリ可溶性ポリアミド樹脂(A-6)の粉末を得た。上記の方法で評価した結果、樹脂(A-6)の重量平均分子量は37,000、PDIは1.8であった。
前記合成例1に従って、BAHF(27.47g、0.075モル)、PBOM(31.53g、0.088モル)、RT-1000(20.00g、0.020モル)、1,3-ビス(3-アミノプロピル)テトラメチルジシロキサン(1.24g、0.0050モル)、5-ノルボルネン-2,3-ジカルボン酸無水物(3.94g、0.024モル)、酢酸(26.41g、0.50モル)、NMP300gを用いて同様に行い、アルカリ可溶性ポリアミド樹脂(A-7)の粉末を得た。上記の方法で評価した結果、樹脂(A-7)の重量平均分子量は44,000、PDIは2.2であった。
前記合成例1に従って、BAHF(25.64g、0.070モル)、PBOM(31.53g、0.088モル)、エチレンオキシド及びプロピレンオキシド構造を含むED-2003(50.00g、0.025モル)、1,3-ビス(3-アミノプロピル)テトラメチルジシロキサン(1.24g、0.0050モル)、5-ノルボルネン-2,3-ジカルボン酸無水物(3.94g、0.024モル)、酢酸(26.41g、0.50モル)、NMP300gを用いて同様に行い、アルカリ可溶性ポリアミド樹脂(A-8)の粉末を得た。上記の方法で評価した結果、樹脂(A-8)の重量平均分子量は52,000、PDIは2.1であった。
前記合成例1に従って、BAHF(34.79g、0.095モル)、PBOM(31.53g、0.088モル)、1,3-ビス(3-アミノプロピル)テトラメチルジシロキサン(1.24g、0.0050モル)、5-ノルボルネン-2,3-ジカルボン酸無水物(3.94g、0.024モル)、酢酸(26.41g、0.50モル)、NMP300gを用いて同様に行い、アルカリ可溶性ポリアミド樹脂(A-9)の粉末を得た。上記の方法で評価した結果、樹脂(A-9)の重量平均分子量は38,000、PDIは1.6であった。
前記合成例1に従って、BAHF(12.82g、0.035モル)、PBOM(31.53g、0.088モル)、RT-1000(120.00g、0.060モル)、1,3-ビス(3-アミノプロピル)テトラメチルジシロキサン(1.24g、0.0050モル)、5-ノルボルネン-2,3-ジカルボン酸無水物(3.94g、0.024モル)、酢酸(26.41g、0.50モル)、NMP300gを用いて同様に行い、アルカリ可溶性ポリアミド樹脂(A-10)の粉末を得た。上記の方法で評価した結果、樹脂(A-10)の重量平均分子量は43,000、PDIは2.5であった。
乾燥窒素気流下、m-クレゾール(70.2g、0.65モル)、p-クレゾール(37.8g、0.35モル)、37質量%ホルムアルデヒド水溶液(75.5g、(ホルムアルデヒド0.93モル)、シュウ酸二水和物(0.63g、0.005モル)、メチルイソブチルケトン264gを仕込んだ後、油浴中に浸し、反応液を還流させながら、4時間重縮合反応を行った。その後、油浴の温度を3時間かけて昇温し、その後に、フラスコ内の圧力を30~50mmHgまで減圧し、揮発分を除去し、溶解している樹脂を室温まで冷却して、ノボラック樹脂(A-11)の粉末を得た。上記の方法で評価した結果、樹脂(A-11)の重量平均分子量は3,500、PDIは2.8であった。
乾燥窒素気流下、N-メチルピロリドン100gを仕込み、2,2-ビス(3-アミノ-4-ヒドロキシフェニル)ヘキサフルオロプロパン(32.96g、0.090モル)、m-アミノフェノール(2.18g、0.020モル)を添加し、室温で撹拌溶解した後、反応溶液の温度を-10~0℃に保ちながら、ドデカン二酸ジクロリド(20.04g、0.075モル)を10分間で滴下した後、4,4’-ジフェニルエーテルジカルボン酸クロリド(7.38g、0.025モル)を加え、室温で3時間撹拌を続けた。反応溶液を3リットルの水に投入し、析出物を回収、純水で3回洗浄した後、50℃の通風乾燥機で3日間乾燥し、ポリベンゾオキサゾール前駆体樹脂(A-12)の粉末を得た。上記の方法で評価した結果、樹脂(A-12)の重量平均分子量は31,000、PDIは2.3であった。
乾燥窒素気流下、BAHF(31.13g、0.085モル)、1,3-ビス(3-アミノプロピル)テトラメチルジシロキサン(1.24g、0.0050モル)、m-アミノフェノール(2.18g、0.020モル)をNMP250gに溶解させた。ここに4,4’-オキシジフタル酸無水物(31.02g、0.10モル)をNMP50gとともに加えて、60℃で1時間反応させ、次いで200℃で4時間撹拌した。撹拌終了後、溶液を水3Lに投入して白色沈殿を得た。この沈殿を濾過で集めて、水で3回洗浄した後、50℃の通風乾燥機で3日間乾燥し既閉環ポリイミド樹脂(A-13)の粉末を得た。上記の方法で評価した結果、樹脂(A-13)の重量平均分子量は27,000、PDIは2.0であった。
得られた樹脂(A-1~13)10gに(B)成分として下記式で表される光酸発生剤を2.0g、(C)熱架橋剤としてHMOM-TPHAPを0.5g、MW-100LMを0.5g、溶剤としてγ-ブチロラクトンを20g加えてワニスを作製し、これらの特性を上記評価方法により測定した。得られた結果を表1に示す。
得られた樹脂(A-6)10gに(B)成分として下記式で表される光酸発生剤を2.0g、溶剤としてγ-ブチロラクトンを20g加えてワニスを作製し、これらの特性を上記評価方法により測定した。得られた結果を表1に示す。
実施例4または7で得られたワニスに対して、(D)化合物として下記式で表される化合物を0.02g、0.06g、0.2g、0.5g、1.5g添加し、これらの特性を上記評価方法により測定した。得られた結果を表1に示す。
2 Alパッド
3 パッシベーション膜
4 絶縁膜
5 金属(Cr、Ti等)膜
6 金属配線(Al、Cu等)
7 絶縁膜
8 バリアメタル
9 スクライブライン
10 ハンダバンプ
Claims (17)
- 脂肪族ジアミンに由来する有機基を有するアルカリ可溶性樹脂を含むことを特徴とする感光性樹脂組成物。
- 前記脂肪族ジアミンに由来する有機基を有するアルカリ可溶性樹脂が、(A)一般式(1)で表されるアルカリ可溶性ポリアミドである、請求項1に記載の感光性樹脂組成物。
- 前記一般式(1)中のY2が、150以上かつ2,000以下の分子量を有する、請求項1~3のいずれかに記載の感光性樹脂組成物。
- 前記(A)一般式(1)で表されるアルカリ可溶性ポリアミド、(B)光により酸を発生する化合物、および(C)熱架橋剤を含有する、請求項1~4のいずれかに記載の感光性樹脂組成物。
- 請求項1~6のいずれかに記載の感光性樹脂組成物から形成された感光性シート。
- 請求項1~6のいずれかに記載の感光性樹脂組成物を基材上に塗布し、乾燥する工程を含む、感光性シートの製造方法。
- 請求項1~6のいずれかに記載の感光性樹脂組成物を硬化した硬化膜。
- 請求項7に記載の感光性シートを硬化した硬化膜。
- 請求項9または10に記載の硬化膜が配置された、層間絶縁膜または半導体保護膜。
- 請求項1~6のいずれかに記載の感光性樹脂組成物を基板上に塗布し、乾燥して感光性樹脂膜を形成する工程と、マスクを介して露光する工程と、照射部をアルカリ溶液で溶出または除去して現像する工程と、および現像後の感光性樹脂膜を加熱処理する工程により得られることを特徴とする硬化レリーフパターンの製造方法。
- 請求項7に記載の感光性シートまたは請求項8に記載の方法により製造された感光性シートを基材上にラミネートした後に紫外線照射工程と現像工程を経てパターンを形成し、さらに加熱して硬化膜のレリーフパターン層を形成することを特徴とする半導体電子部品または半導体装置の製造方法。
- 請求項9または10に記載の硬化膜のレリーフパターン層を有することを特徴とする半導体電子部品または半導体装置。
- 請求項9または10に記載の硬化膜が再配線間の層間絶縁膜として配置された、請求項14に記載の半導体電子部品または半導体装置。
- 前記再配線と層間絶縁膜が2~10層繰り返し配置された、請求項15に記載の半導体電子部品または半導体装置。
- 請求項9または10に記載の硬化膜が2種以上の材質で構成される隣接する基板の層間絶縁膜として配置された、半導体電子部品または半導体装置。
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EP3276415A1 (en) | 2018-01-31 |
JP6801452B2 (ja) | 2020-12-16 |
KR102281541B1 (ko) | 2021-07-26 |
TWI688825B (zh) | 2020-03-21 |
US10584205B2 (en) | 2020-03-10 |
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