JP2974700B2 - 導電性接着剤 - Google Patents
導電性接着剤Info
- Publication number
- JP2974700B2 JP2974700B2 JP1311013A JP31101389A JP2974700B2 JP 2974700 B2 JP2974700 B2 JP 2974700B2 JP 1311013 A JP1311013 A JP 1311013A JP 31101389 A JP31101389 A JP 31101389A JP 2974700 B2 JP2974700 B2 JP 2974700B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- silicon
- parts
- fine powder
- conductive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000853 adhesive Substances 0.000 title claims description 27
- 230000001070 adhesive effect Effects 0.000 title claims description 27
- 239000004065 semiconductor Substances 0.000 claims description 55
- 239000008188 pellet Substances 0.000 claims description 37
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 36
- 229920001296 polysiloxane Polymers 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 27
- 239000000843 powder Substances 0.000 claims description 26
- 229920002379 silicone rubber Polymers 0.000 claims description 24
- 239000004945 silicone rubber Substances 0.000 claims description 24
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 20
- 229910052802 copper Inorganic materials 0.000 claims description 20
- 239000010949 copper Substances 0.000 claims description 20
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 19
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 18
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 17
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 16
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 16
- 229910052709 silver Inorganic materials 0.000 claims description 12
- 239000004332 silver Substances 0.000 claims description 12
- 125000003342 alkenyl group Chemical group 0.000 claims description 11
- 229910052737 gold Inorganic materials 0.000 claims description 11
- 239000010931 gold Substances 0.000 claims description 11
- 239000003054 catalyst Substances 0.000 claims description 9
- 229910052759 nickel Inorganic materials 0.000 claims description 9
- 229910052697 platinum Inorganic materials 0.000 claims description 8
- 150000002739 metals Chemical class 0.000 claims description 7
- 238000007747 plating Methods 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 238000005304 joining Methods 0.000 claims description 5
- 150000003961 organosilicon compounds Chemical class 0.000 claims description 5
- 239000004215 Carbon black (E152) Substances 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 4
- 229930195733 hydrocarbon Natural products 0.000 claims description 4
- 150000002430 hydrocarbons Chemical group 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 238000007740 vapor deposition Methods 0.000 claims description 3
- 230000003197 catalytic effect Effects 0.000 claims description 2
- 125000000524 functional group Chemical group 0.000 claims description 2
- 229910001111 Fine metal Inorganic materials 0.000 claims 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 18
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 18
- 239000004205 dimethyl polysiloxane Substances 0.000 description 17
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 15
- 239000000047 product Substances 0.000 description 15
- -1 siloxanes Chemical class 0.000 description 15
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 14
- 238000010438 heat treatment Methods 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000007789 sealing Methods 0.000 description 7
- 239000002253 acid Substances 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 230000002950 deficient Effects 0.000 description 5
- 239000003822 epoxy resin Substances 0.000 description 5
- 229920000647 polyepoxide Polymers 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000007767 bonding agent Substances 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000002481 ethanol extraction Methods 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 238000004817 gas chromatography Methods 0.000 description 2
- 238000006459 hydrosilylation reaction Methods 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 239000009719 polyimide resin Substances 0.000 description 2
- 125000004368 propenyl group Chemical group C(=CC)* 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- GVNVAWHJIKLAGL-UHFFFAOYSA-N 2-(cyclohexen-1-yl)cyclohexan-1-one Chemical compound O=C1CCCCC1C1=CCCCC1 GVNVAWHJIKLAGL-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- 101150065749 Churc1 gene Proteins 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910003271 Ni-Fe Inorganic materials 0.000 description 1
- 102100038239 Protein Churchill Human genes 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 101150114468 TUB1 gene Proteins 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007809 chemical reaction catalyst Substances 0.000 description 1
- 238000006757 chemical reactions by type Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 229910002026 crystalline silica Inorganic materials 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 125000006038 hexenyl group Chemical group 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- IALUUOKJPBOFJL-UHFFFAOYSA-N potassium oxidosilane Chemical compound [K+].[SiH3][O-] IALUUOKJPBOFJL-UHFFFAOYSA-N 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011949 solid catalyst Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L24/83—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/495—Lead-frames or other flat leads
- H01L23/49503—Lead-frames or other flat leads characterised by the die pad
- H01L23/49513—Lead-frames or other flat leads characterised by the die pad having bonding material between chip and die pad
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L24/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L24/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
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- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L24/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L24/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
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- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/02—Bonding areas; Manufacturing methods related thereto
- H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
- H01L2224/05—Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
- H01L2224/0554—External layer
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- H01L2224/056—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
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- H01L2224/05624—Aluminium [Al] as principal constituent
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- H01L2224/29001—Core members of the layer connector
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- H01L2224/2919—Material with a principal constituent of the material being a polymer, e.g. polyester, phenolic based polymer, epoxy
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- H01L2224/29191—The principal constituent being an elastomer, e.g. silicones, isoprene, neoprene
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- H01L2224/29198—Material with a principal constituent of the material being a combination of two or more materials in the form of a matrix with a filler, i.e. being a hybrid material, e.g. segmented structures, foams
- H01L2224/29199—Material of the matrix
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- H01L2224/293—Base material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
- H01L2224/29338—Base material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/29339—Silver [Ag] as principal constituent
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- H01L2224/29338—Base material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/29344—Gold [Au] as principal constituent
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- H01L2224/29198—Material with a principal constituent of the material being a combination of two or more materials in the form of a matrix with a filler, i.e. being a hybrid material, e.g. segmented structures, foams
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- H01L2224/29299—Base material
- H01L2224/293—Base material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
- H01L2224/29338—Base material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/29347—Copper [Cu] as principal constituent
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
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- H—ELECTRICITY
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Description
ィング)するための導電性接着剤(導電性ダイボンディ
ング剤)に関するものである。
ットがその支持体であるタブに導電性エポキシ樹脂、導
電性ポリイミド樹脂等の導電性接着剤等により接合さ
れ、さらに半導体ペレットと金属製内部リードフレーム
を金属製ワイヤで電気的に接合し、これらの一体化物が
エポキシ樹脂などの封止樹脂により封止されてなる構造
体である。このように、半導体装置は各種の素材により
構成されているので、封止樹脂による封止時の加熱、ま
たは半導体ペレットの温度上昇に伴う素材の熱膨張率の
差や機械的応力に起因する内部歪の増大により、半導体
ペレットや封止樹脂にクラックが発生し、半導体装置と
しての性能に変動をきたし、その信頼性が低下するとい
う欠点があった。
上が要求されており、それに伴って半導体ペレットの大
型化により内部歪が助長され、また半導体装置の熱伝導
性、加工性の向上およびコスト低下のため、タブ、金属
製内部リードフレーム材料においても、熱膨張係数の比
較的小さいNi−Fe合金から、比較的熱膨張係数の大きい
銅合金に移行する傾向にあるので、上記のような欠点が
益々問題視されるようになってきた。
シ樹脂や導電性ポリイミド樹脂接着剤のような従来の導
電性接着剤により銅製タブに固着すると、この銅製タブ
と半導体ペレットとの熱膨張率の差により、応力が発生
し、半導体ペレットの反りが大となり、その特性が変動
し、はなはだしい場合は半導体ペレットにクラックが発
生し、半導体装置としての信頼性が従来にまして低下す
るからである。
ンゴムからなる導電性接着剤により半導体ペレットとタ
ブとを接着した半導体装置が提案されている(特開昭58
−86732号公報参照)。これは半導体ペレットとタブと
の熱膨張率の差に起因する内部歪を導電性シリコーンゴ
ム弾性体により緩和しようとしたものである。
明においては、導電性接着剤で半導体ペレットをタブに
接着した後、半導体ペレットと銅製内部リードフレーム
とを、金製ワイヤからなるボンディングワイヤで接続す
る際に、半導体ペレットとボンディングワイヤあるいは
銅製内部リードフレームとボンディングワイヤとの接合
性(ワイヤボンダビリティ)が低下して半導体装置の信
頼性が低下するという欠点があった。また、半導体ペレ
ット,タブ,銅製内部リードフレームと封止樹脂との接
着性不良による耐湿性の低下等が発生するという問題点
があった。
た結果、特定の導電性シリコーンゴム組成物を導電性接
着剤として使用すれば、上記のような問題点は一挙に解
消されることを見出し本発明に到達した。
後、ワイヤボンダビリティが阻害されず、かつ、半導体
ペレット,タブ,銅製内部リードフレームなど半導体部
材と封止樹脂との接着性不良による耐湿性を低下させな
いという特徴を有する、半導体ペレットとタブを接合す
るための導電性接着剤を提供することにある。
子シロキサンの含有量が500ppm以下であり、金、銀、ニ
ッケル、または銅からなる金属微粉末、またはこれらの
金属を蒸着もしくはメッキした微粉末を含有する導電性
付加反応硬化型シリコーンゴム組成物からなることを特
徴とする半導体ペレットとタブとを接合するための導電
性接着剤に関する。
応硬化型シリコーンゴム組成物は、ケイ素原子結合アル
ケニル基を有するオルガノポリシロキサン、ケイ素原子
結合水素原子を有するオルガノポリシロキサン、ヒドロ
シリル化反応触媒、および金、銀、ニッケル、または銅
からなる金属微粉末、またはこれらの金属を蒸着もしく
はメッキした微粉末を主成分とするものであり、常温あ
るいは加熱下に硬化して導電性シリコーンゴムになり得
るものである。本発明においては、この導電性付加反応
硬化型シリコーンゴム組成物に含まれる、200℃で10mmH
g以上の蒸気圧を有する低分子シロキサンの含有量が500
ppm以下であることが必要である。この低分子シロキサ
ンの含有量が、500ppmを越えるとワイヤボンダビリティ
および耐湿性が低下する。かかる低分子シロキサンとし
ては、直鎖状のものと環状のものがあり、例えば、式、 (式中、nは3〜25の整数である。)で表される環状シ
ロキサン、または、式、 (CH3)3SiO[(CH3)2SiO]mSi(CH3)3 (式中、mは1〜25の整数である。)で表される直鎖状
シロキサンがある。かかる低分子シロキサンの含有量
は、オルガノポリシロキサン類および導電性付加反応硬
化型シリコーンゴム組成物から低分子シロキサンを有機
溶媒にて抽出し、その抽出量をガスクロマトグラフによ
り分析することにより容易に測定できる。また、導電性
付加反応硬化型シリコーンゴム組成物の加熱時に発生す
るガス類をガスクロマトグラフにて分析することによっ
ても測定できる。
は次のようなものが好ましい。
キサンの含有量が500ppm以下である、1分子中に2個以
上のケイ素原子結合アルケニル基を有するオルガノポリ
シロキサン 100重量部、 (B)1分子中に2個以上のケイ素原子結合水素原子を
有するオルガノポリシロキサン、(A)成分のケイ素原
子結合アルケニル基1個に対し本成分のケイ素原子結合
水素原子を0.5〜3個供給し得るに充分な量、 (C)式、 −SiOR1(式中、R1は1価炭化水素基である。)で表さ
れる官能基を有し、かつ、ケイ素原子結合低級アルケニ
ル基もしくはケイ素原子結合水素原子を有する有機ケイ
素化合物 0〜10重量部、 (D)白金系触媒 触媒量、 (E)シリカ微粉末系フィラー 0〜100重量部、 および (F)金、銀、ニッケル、または銅からなる金属微粉
末、またはこれらの金属を蒸着もしくはメッキした微粉
末 50〜2000重量部 からなるものである。
有するオルガノポリシロキサンは、平均単位式、 R2 aSiO4−a/2 (式中、R2は、メチル基,エチル基,プロピル基等のア
ルキル基;フェニル基,トリル基等のアリール基;ビニ
ル基,アリル基,プロペニル基,ヘキセニル基等のアル
ケニル基で例示される1価炭化水素基であり、aは1〜
3である。)で表され、1分子中に2個以上のケイ素原
子結合アルケニル基を有するオルガノポリシロキサンで
ある。
知の方法で製造されるが、通常は、オクタメチルテトラ
シクロシロキサン,デカメチルペンタシクロシロキサ
ン,ドデカメチルヘキシクロシロキサン等の200℃で10m
mHg以上の蒸気圧を有する低分子シロキサンを副生成物
として約2〜7重量%含有している。
サンは、かかる低分子シロキサンを前記のようなオルガ
ノポリシロキサンから除去することによって製造され
る。低分子シロキサンの除去方法としては数多くの方法
があるが、その1例を挙げれば、オルガノポリシロキサ
ンを薄膜化して、例えば0.5mmHg以下の減圧下において1
80〜300℃の加熱条件下でストリッピングするか、また
はオルガノポリシロキサンにメタノール、エタノール、
プロパノール、ブタノールもしくはアセトンなどの溶剤
を加えて低分子シロキサンを抽出除去する方法等が採用
できる。
常、その粘度が25℃において50〜500,000センチストー
クスの範囲内にあるものが使用されるが、特に、400〜1
00,000センチストークスの範囲内にあるものが好適に使
用される。
の架橋剤として作用するものであり、これは1分子中に
2個以上のケイ素原子結合水素原子を含有するものであ
って、その分子構造は直鎖状、分枝状、環状のいずれの
構造であってもよい。
のアルケニル基1個に対して本成分のケイ素原子結合水
素原子を0.5〜3個供給し得るに十分な量であり、好ま
しくは1〜2個供給するに十分な量である。この量は、
通常、(A)成分の2重量%以下である。かかる(B)
成分も(A)成分と同様に低分子シロキサンを含有して
いるため、例えば、0.5mmHg以下の減圧下において180〜
300℃の加熱条件下にストリッピングして、反応副生成
物である低分子シロキサンを除去したものを用いた方が
好ましい。
のようなものが例示される。
以上の整数を表す。) (C)成分は本発明の導電性接着剤に接着性を付与す
るための成分であり、式、 −SiOR1(式中、R1はメチル基,エチル基,プロピル
基,プロペニル基等の1価炭化水素基である。)で表さ
れる官能基を有し、かつ、低級アルケニル基もしくはケ
イ素原子結合水素原子を有する有機ケイ素化合物であ
る。かかる有機ケイ素化合物の具体例としては、 CH2=CH−Si(OCH3)3 CH2=CH−CH2−Si(OC2H5)3 が例示される。
〜10重量部の範囲であり、好ましくは0.5〜3.0重量部の
範囲である。
硬化させるための触媒であり、一般にヒドロシリル化反
応に用いられる付加反応用触媒として公知のものが使用
でき、かかるものとしては白金黒,アルミナ,シリカな
どの担体に固体白金を担持させたもの,塩化白金酸,ア
ルコール変性塩化白金酸,塩化白金酸とオレフィンの錯
体あるいは白金とビニルシロキサンとの錯体等が例示さ
れる。これらの触媒の使用に当たっては、それが固体触
媒であるときは分散性をよくするために細かく砕いた
り、その担体を粒径が小さく、比表面積の大きいものと
することが好ましく、塩化白金酸または、そのオレフィ
ンとの錯体については、これをアルコール,ケトン,エ
ーテルあるいは炭化水素系等の溶剤に溶解して使用する
ことが望ましい。なお、この触媒の添加量は所望の硬化
速度が得られるように適宜調節すればよいが、良好な硬
化物を得るために、塩化白金酸等のようにシロキサンと
相溶するものについては、前述した(A)成分と(B)
成分の合計量に対し白金量で1〜100ppmの範囲とするこ
とが望ましい。
性接着剤に適当な硬度と強度と作業性を付与するために
配合されるもので、通常の付加反応硬化型シリコーンゴ
ム組成物に使用されているものが使用可能である。かか
るシリカ微粉末系フィラーとしては、例えば、ヒューム
ドシリカ,沈降性シリカ,疎水化処理したシリカ等が挙
げられる。また、その配合量は、(A)成分の100重量
部に対し100重量部以下とされる。
属微粉末、またはこれらの金属を蒸着もしくはメッキし
た微粉末は、本発明の導電性接着剤に導電性を付与する
ための必須の成分である。本発明の導電性接着剤におい
て使用できる微粉末としては、金,銀,ニッケル,また
は銅からなる金属微粉末;セラミック,ガラス,石英,
有機樹脂等の微粉末表面に金,銀,ニッケル,または銅
からなる金属を蒸着またはメッキした微粉末が挙げられ
る。本発明において、導電性シリコーンゴムの体積抵抗
率が01Ω・cm以下である導電性を得るために、使用でき
る微粉末としては、金または銀微粉末であるが、実用的
には銀微粉末である。銀粉末として球状,フレーク状,
フレーク樹枝状等の銀粉末が挙げられる。導電性シリコ
ーンゴムが1×10-3Ω・cm以下の導電性を得るために
は、フレーク状またはフレーク樹枝状の銀粉末が好まし
く、特にフレーク状の銀粉末とフレーク樹枝状の粉末を
混合して用いる場合、フレーク状の銀粉末の混合比は、
フレーク樹枝状の銀粉末に対して80/20〜20/80が好まし
い。また、銀粉末の粒径は1〜10μmであり、好ましく
は1〜5μmである。本発明において(F)成分の添加
量は、(A)成分100重量部に対して50〜2000重量部で
あり、好ましくは300〜600重量部である。これは50重量
部未満であると、本発明の目的である導電性が付与され
ず、また2000重量部を越えると、導電性接着剤の作業性
が悪化するためである。
25℃における値である。
よび導電性接着剤の特性は次に記載する方法により従っ
て行なった。
キサンをアセトンにより抽出し、その抽出量をガスクロ
マトグラフのFID法により測定した。
在させ、200℃で1分間加熱した。得られた半導体ペレ
ット2とタブ1が導電性接着剤8により接合されてなる
一体化物を冷却した後、その半導体ペレット2の表面を
顕微鏡にて観察した。
物上のアルミニウム製ボンディングパッド3と銅製内部
リードフレーム4とを金製ワイヤ5で接合(ワイヤボン
ディング)して一体化物を作成した。なお、金製ワイヤ
5の接合は超音波熱圧着法により接合した。次いで、こ
の一体化物について、金製ワイヤ5とアルミニウム製ボ
ンディングパッド3または金製ワイヤ5と銅製内部リー
ドフレーム4との接合点を観察し、併せてこの金製ワイ
ヤ5を引張り、金製ワイヤ5の浮き上がったものを接合
不良品とし、接合試験の全数に対する接点不良品の数を
数えた。
をエポキシ樹脂6により封止して半導体装置を作成し
た。次いで、この半導体装置を121℃、2気圧の飽和水
蒸気中で所定時間加熱した。加熱後の半導体装置に電流
を流し銅製内部リードフレーム4間のリーク電流を測定
した。そしてリーク電流の増加および導通不良のあった
半導体装置を不良品とし、この半導体装置の全数に対す
る不良品の数を数えた。
物を作成し、抵抗率測定装置[(有)共和理研製、K−
705RL]にて測定を行なった。
媒を用いて重合した後、中和することにより、ビニル基
を有するジメチルポリシロキサン(I)を得た。
を圧力10mmHg、温度180℃の加熱条件下で5時間ストリ
ップ処理を行い、低分子シロキサンを除去して、粘度2,
000センチストークスのビニル基を有するジメチルポリ
シロキサン(II)を得た。
含まれる低分子シロキサンの量をガスクロマトグラフ
[(株)島津製作所製、GC−9A、FID仕様]を用いて定
量したところ、200℃で10mmHg以上の蒸気圧を有する低
分子シロキサンの主成分は環状のジメチルポリシロキサ
ンの10量体(D10)であり、その含有量はジメチルポリ
シロキサン(I)では20.5重量%、ジメチルポリシロキ
サン(II)では、1.3重量%であった。
g、温度260℃の加熱条件下で8時間分子上流処理を行
い、低分子シロキサンを除去し、10量体(D10)までの
低分子シロキサンの含有量が0.01重量%のビニル基を有
するジメチルポリシロキサン(III)を得た。
タノール300重量部とを3時間攪拌混合し、静置後エタ
ノールを分離した。更に、同様のエタノール抽出操作を
4回繰り返し、低分子シロキサンを除去した後、このジ
メチルポリシロキサン中のエタノール分を圧力10mmHg、
温度180℃の加熱条件下で5時間ストリップ処理を行い
除去して、10量体(D10)までの低分子シロキサンの含
有量が10ppmのビニル基を有するジメチルポリシロキサ
ン(IV)を得た。
ロキサン(III)65重量部と、SiO2単位と(CH3)3SiO
1/2単位と(CH3)2(CH2=CH)SiO1/2単位からなる共
重合体(ビニル基含有量25モル%)35重量部とを混合し
た。この混合物100部とエタノール300部とを3時間攪拌
混合し、静置後エタノールを分離した。更に、同様のエ
タノール抽出操作を4回繰り返し、低分子シロキサンを
除去した後、このジメチルポリシロキサン中のエタノー
ルを圧力10mmHg、温度180℃の加熱条件下で5時間スト
リップ処理を行い除去して、粘度9,000センチストーク
スのビニル基を有するジメチルポリシロキサンレジン
(V)を得た。このジメチルポリシロキサンレジン
(V)中に含まれる10量体(D10)までの低分子シロキ
サンの含有量は、10ppmであった。
た後、中和することにより、平均組成式、 で示されるケイ素原子結合水素原子を有するポリシロキ
サン(VI)を得た。このポリシロキサン(VI)を0.5mmH
gの減圧下、温度180℃の加熱条件下、3時間ストリップ
処理を行い、低分子シロキサン含有量の減少したケイ素
原子結合水素原子を有するポリシロキサン(VII)を得
た。これらポリシロキサン(VI)、(VII)中に含まれ
る10量体(D10)までの低分子シロキサンの含有量は、
(VI)は17.0重量%、(VII)は100ppmであった。
(IV)100重量部、フレーク状の銀粉末[(株)徳力化
学研究所製、商品名TC20E]200重量部、フレーク状の銀
粉末[(株)徳力化学研究所製、商品名TCG7]200重量
部、参考例3で製造したケイ素原子結合水素原子を有す
るポリシロキサン(VII)1.5重量部、塩化白金酸とオレ
フィンの錯体を白金として5ppmを均一に混合して導電性
付加反応硬化型シリコーンゴム組成物を得た。この組成
物中に含まれる低分子シロキサンの含有量は10ppmであ
った。また、この組成物の硬化時(200℃/10分間)に発
生する揮発成分をガスクロマトグラフを用いて測定した
ところ60ppmであった。このものの硬化後の導電性シリ
コーンゴムの抵抗率は4×10-4Ω・cmであった。次い
で、この組成物を導電性接着剤として用いて、半導体装
置を製造し、半導体ペレットクラック、ワイヤボンダビ
リティ及び耐湿性を測定した。これらの結果を第1表に
示した。
ロキサン(IV)の代わりに、ビニル基を有するジメチル
ポリシロキサン(II)を用い、また参考例3で製造した
ケイ素原子結合水素原子を有するポリシロキサン(VI
I)の代わりに、ケイ素原子結合水素原子を有するポリ
シロキサン(VI)を用いた以外は実施例1と同様にして
導電性付加反応硬化型シリコーンゴム組成物を得た。こ
の組成物中に含まれる低分子シロキサンの含有量は2800
ppmであった。また、この組成物の硬化時(200℃/10分
間)に発生する揮発成分をガスクロマトグラフを用いて
測定したところ3560ppmであった。このものの硬化後の
導電性シリコーンゴムの抵抗率は4×10-4Ω・cmであっ
た。次いで、この組成物を導電性接着剤として用いて、
半導体装置を製造し、半導体ペレットクラック、ワイヤ
ボンダビリティおよび耐湿性を実施例1と同様にして測
定した。これらの結果を第1表に併記した。
ロキサン(V)100重量部、結晶性シリカ10重量部、実
施例1同様のフレーク状の銀粉末300重量部、参考例3
で製造したケイ素原子結合水素原子を有するポリシロキ
サン(VII)を2.5重量部、接着付与剤として次式で表さ
れる有機ケイ素化合物2.0重量部、 塩化白金酸とメチルビニルシロキサンダイマーとの錯体
を白金として5ppm均一に混合して導電性付加反応硬化型
シリコーンゴム組成物を得た。この組成物中に含まれる
低分子シロキサンの含有量を実施例1同様に測定したと
ころ低分子シロキサンの含有量は10ppmであった。ま
た、この組成物の硬化時(200℃/10分間)に発生する揮
発成分をガスクロマトグラフを用いて測定したところ43
ppmであった。このものの硬化後の導電性シリコーンゴ
ムの抵抗率は1×10-4Ω・cmであった。更に、この組成
物を導電性接着剤として、半導体装置を製造し、半導体
ペレットクラック、ワイヤボンダビリティおよび耐湿性
を測定したところ、不良品は発生しなかった。これらの
結果を第2表に示した。
圧を有する低分子シロキサンの含有量が500ppm以下であ
り、金、銀、ニッケル、または銅からなる金属微粉末、
またはこれらの金属を蒸着もしくはメッキした微粉末を
含有する導電性付加反応効果型シリコーンゴム組成物か
らなるので、これを半導体ペレットとタブとを接合する
ための導電性接着剤(導電性ダイボンド剤)として使用
した場合には、通常の導電性付加反応硬化型シリコーン
ゴム組成物に比べてワイヤボンダビリティが低下せず、
更に、半導体ペレット表面およびリードフレームと封止
樹脂との密着性が低下しないと共に、半導体装置の耐湿
性が低下しない。また、熱膨張係数が異なる半導体ペレ
ットと、タブを接合しても、両者の間に発生する応力を
吸収、低減することが可能なため、半導体ペレットの屈
曲、半導体ペレットクラックを防止し、半導体装置とし
ての特性の変動を低減し得るという特徴を有する。
性を評価するために使用した評価用半導体装置の概略断
面図である。 1……タブ、2……半導体ペレット、3……アルミニウ
ム製ボンディングパッド、4……銅製内部リードフレー
ム、5……金製ワイヤ、6……エポキシ樹脂、7……銅
製外部リードフレーム、8……導電性接着剤
Claims (2)
- 【請求項1】200℃で10mmHg以上の蒸気圧を有する低分
子シロキサンの含有量が500ppm以下であり、金、銀、ニ
ッケル、または銅からなる金属微粉末、またはこれらの
金属を蒸着もしくはメッキした微粉末を含有する導電性
付加反応硬化型シリコーンゴム組成物からなることを特
徴とする、半導体ペレットとタブとを接合するための導
電性接着剤。 - 【請求項2】導電性付加反応硬化型シリコーンゴム組成
物が、 (A) 200℃で10mmHg以上の蒸気圧を有する低分子シ
ロキサンの含有量が500ppm以下である、1分子中に2個
以上のケイ素原子結合アルケニル基を有するオルガノポ
リシロキサン 100重量部、 (B) 1分子中に2個以上のケイ素原子結合水素原子
を有するオルガノポリシロキサン、(A)成分のアルケ
ニル基1個に対し本成分のケイ素原子結合水素原子を0.
5〜3個供給し得るに充分な量、 (C) 式、 −SiOR1(式中、R1は1価炭化水素基である。)で表さ
れる官能基を有し、かつ、ケイ素原子結合低級アルケニ
ル基もしくはケイ素原子結合水素原子を有する有機ケイ
素化合物 0〜10重量部、 (D) 白金系触媒 触媒量、 (E) シリカ微粉末系フィラー 0〜100重量部、 および (F) 金、銀、ニッケル、または銅からなる金属微粉
末、またはこれらの金属を蒸着もしくはメッキした微粉
末 50〜2000重量部 からなることを特徴とする特許請求の範囲第1項記載の
導電性接着剤。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1311013A JP2974700B2 (ja) | 1989-11-30 | 1989-11-30 | 導電性接着剤 |
EP90122877A EP0430255B1 (en) | 1989-11-30 | 1990-11-29 | Conductive adhesive and article made therewith |
US07/619,842 US5173765A (en) | 1989-11-30 | 1990-11-29 | Conductive adhesive and article made therewith |
DE69012749T DE69012749T2 (de) | 1989-11-30 | 1990-11-29 | Leitender Klebstoff und damit hergestellter Artikel. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1311013A JP2974700B2 (ja) | 1989-11-30 | 1989-11-30 | 導電性接着剤 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH03170581A JPH03170581A (ja) | 1991-07-24 |
JP2974700B2 true JP2974700B2 (ja) | 1999-11-10 |
Family
ID=18012074
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1311013A Expired - Lifetime JP2974700B2 (ja) | 1989-11-30 | 1989-11-30 | 導電性接着剤 |
Country Status (4)
Country | Link |
---|---|
US (1) | US5173765A (ja) |
EP (1) | EP0430255B1 (ja) |
JP (1) | JP2974700B2 (ja) |
DE (1) | DE69012749T2 (ja) |
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US5441726A (en) * | 1993-04-28 | 1995-08-15 | Sunsmart, Inc. | Topical ultra-violet radiation protectants |
US5391432A (en) * | 1993-04-28 | 1995-02-21 | Mitchnick; Mark | Antistatic fibers |
AU6627394A (en) * | 1993-04-28 | 1994-11-21 | Mark Mitchnick | Conductive polymers |
US5384284A (en) * | 1993-10-01 | 1995-01-24 | Micron Semiconductor, Inc. | Method to form a low resistant bond pad interconnect |
EP0647682B1 (en) * | 1993-10-06 | 1997-12-03 | Dow Corning Toray Silicone Company, Limited | Silver-filled electrically conductive organosiloxane compositions |
JP3950490B2 (ja) * | 1995-08-04 | 2007-08-01 | 東レ・ダウコーニング株式会社 | 導電性シリコーンゴム組成物および半導体装置 |
TW334469B (en) * | 1995-08-04 | 1998-06-21 | Doconitele Silicon Kk | Curable organosiloxane compositions and semiconductor devices |
US5611884A (en) * | 1995-12-11 | 1997-03-18 | Dow Corning Corporation | Flip chip silicone pressure sensitive conductive adhesive |
JPH09286971A (ja) * | 1996-04-19 | 1997-11-04 | Toray Dow Corning Silicone Co Ltd | シリコーン系ダイボンディング剤、半導体装置の製造方法および半導体装置 |
JP3950493B2 (ja) * | 1996-04-26 | 2007-08-01 | 東レ・ダウコーニング株式会社 | 導電性シリコーンゴム組成物、半導体装置の製造方法およびその半導体装置 |
DE69715504T2 (de) * | 1996-04-26 | 2003-06-05 | Dow Corning Toray Silicone | Elektrisch leitfähige Silikonkautschukzusammensetzung und ihre Anwendung zur Herstellung von Halbleiteranordnungen |
JP3417247B2 (ja) * | 1996-05-28 | 2003-06-16 | 株式会社デンソー | 樹脂封止型電子装置の製造方法 |
JP3928753B2 (ja) * | 1996-08-06 | 2007-06-13 | 日立化成工業株式会社 | マルチチップ実装法、および接着剤付チップの製造方法 |
JP3436464B2 (ja) * | 1996-10-31 | 2003-08-11 | 東レ・ダウコーニング・シリコーン株式会社 | 付加反応硬化型導電性シリコーン組成物および導電性シリコーン硬化物の製造方法 |
JPH11254670A (ja) | 1998-03-10 | 1999-09-21 | Nec Corp | インクジェットヘッド |
JP3173586B2 (ja) * | 1998-03-26 | 2001-06-04 | 日本電気株式会社 | 全モールド型固体撮像装置およびその製造方法 |
TWI257410B (en) | 1999-03-25 | 2006-07-01 | Shinetsu Chemical Co | Conductive silicone rubber composition and low-resistance connector |
WO2001064807A1 (fr) * | 2000-02-29 | 2001-09-07 | Matsushita Electric Industrial Co., Ltd. | Adhesif conducteur, appareil de montage de composant electronique, et procede de montage d'un tel composant |
US6361716B1 (en) * | 2000-07-20 | 2002-03-26 | Dow Corning Corporation | Silicone composition and electrically conductive silicone adhesive formed therefrom |
JP2003031028A (ja) * | 2001-07-17 | 2003-01-31 | Shin Etsu Chem Co Ltd | 導電性組成物 |
US6784555B2 (en) * | 2001-09-17 | 2004-08-31 | Dow Corning Corporation | Die attach adhesives for semiconductor applications utilizing a polymeric base material with inorganic insulator particles of various sizes |
DE60231232D1 (de) * | 2001-11-28 | 2009-04-02 | Dow Corning Toray Co Ltd | Anisotrop elektroleitfaehiger klebefilm, verfahren zu seiner herstellung und halbleitervorrichtungen |
JP3999994B2 (ja) * | 2002-04-03 | 2007-10-31 | 東レ・ダウコーニング株式会社 | 導電性シリコーンゴム組成物 |
JP4597508B2 (ja) * | 2003-12-10 | 2010-12-15 | モメンティブ・パフォーマンス・マテリアルズ・ジャパン合同会社 | 半導体ペレットと半導体ペレット取付部材とを接合するためのシリコーン接着剤 |
JP2006073950A (ja) | 2004-09-06 | 2006-03-16 | Kansai Electric Power Co Inc:The | 高耐熱半導体装置 |
US20060094809A1 (en) * | 2004-11-02 | 2006-05-04 | Simone Davide L | Electrically and thermally conductive silicone adhesive compositions |
JP2007035965A (ja) * | 2005-07-27 | 2007-02-08 | Oki Electric Ind Co Ltd | 半導体装置およびその製造方法、ならびにそれに使用される接着材料およびその製造方法 |
JP5060074B2 (ja) * | 2006-05-11 | 2012-10-31 | 東レ・ダウコーニング株式会社 | 接着促進剤、硬化性オルガノポリシロキサン組成物、および半導体装置 |
US20070284758A1 (en) * | 2006-05-22 | 2007-12-13 | General Electric Company | Electronics package and associated method |
CN103237863B (zh) * | 2010-12-20 | 2015-07-08 | 施敏打硬株式会社 | 导电性粘接剂 |
JP5854522B2 (ja) * | 2013-07-16 | 2016-02-09 | 国立研究開発法人産業技術総合研究所 | 接着材組成物 |
JP6348434B2 (ja) * | 2014-03-28 | 2018-06-27 | 信越化学工業株式会社 | シリコーン粘着剤組成物、その製造法及び粘着フィルム |
KR20150112851A (ko) * | 2014-03-28 | 2015-10-07 | 신에쓰 가가꾸 고교 가부시끼가이샤 | 실리콘 점착제 조성물, 그의 제조 방법 및 점착 필름 |
JP6870258B2 (ja) | 2016-09-23 | 2021-05-12 | 日亜化学工業株式会社 | 導電性接着剤および導電性材料 |
CN108102578A (zh) * | 2017-12-21 | 2018-06-01 | 上海市合成树脂研究所有限公司 | 一种导电胶的制备方法 |
CN111138836B (zh) * | 2020-01-02 | 2022-03-08 | 深圳先进技术研究院 | 一种柔性电磁屏蔽复合材料及其制备方法 |
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JP2882823B2 (ja) | 1989-11-15 | 1999-04-12 | 東レ・ダウコーニング・シリコーン株式会社 | 接着剤 |
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DE2307776C3 (de) * | 1973-02-16 | 1979-08-30 | Wacker-Chemie Gmbh, 8000 Muenchen | Verwendung von Gemischen auf Basis von OrganopolysUoxanen als Klebstoffe |
JPS5886732A (ja) * | 1981-11-18 | 1983-05-24 | Clarion Co Ltd | 半導体素子 |
JPS61296749A (ja) * | 1985-06-25 | 1986-12-27 | Toray Silicone Co Ltd | 半導体装置用リードフレームの製造方法 |
JPS62240361A (ja) * | 1986-04-11 | 1987-10-21 | Toray Silicone Co Ltd | 硬化性オルガノポリシロキサン組成物 |
FR2605326A1 (fr) * | 1986-10-20 | 1988-04-22 | Rhone Poulenc Multi Tech | Composition potentiellement adhesive electriquement conductrice. |
FR2606784B1 (fr) * | 1986-11-14 | 1989-03-03 | Rhone Poulenc Multi Tech | Composition potentiellement adhesive electriquement conductrice |
JP2585006B2 (ja) * | 1987-07-22 | 1997-02-26 | 東レ・ダウコーニング・シリコーン株式会社 | 樹脂封止型半導体装置およびその製造方法 |
-
1989
- 1989-11-30 JP JP1311013A patent/JP2974700B2/ja not_active Expired - Lifetime
-
1990
- 1990-11-29 DE DE69012749T patent/DE69012749T2/de not_active Expired - Lifetime
- 1990-11-29 US US07/619,842 patent/US5173765A/en not_active Expired - Lifetime
- 1990-11-29 EP EP90122877A patent/EP0430255B1/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2882823B2 (ja) | 1989-11-15 | 1999-04-12 | 東レ・ダウコーニング・シリコーン株式会社 | 接着剤 |
Also Published As
Publication number | Publication date |
---|---|
US5173765A (en) | 1992-12-22 |
EP0430255B1 (en) | 1994-09-21 |
DE69012749T2 (de) | 1995-03-02 |
DE69012749D1 (de) | 1994-10-27 |
EP0430255A2 (en) | 1991-06-05 |
EP0430255A3 (en) | 1991-09-25 |
JPH03170581A (ja) | 1991-07-24 |
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