KR100814416B1 - 고 평탄화 슬러리 조성물 및 이를 이용한 화학 기계적 연마방법 - Google Patents
고 평탄화 슬러리 조성물 및 이를 이용한 화학 기계적 연마방법 Download PDFInfo
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- KR100814416B1 KR100814416B1 KR1020060094755A KR20060094755A KR100814416B1 KR 100814416 B1 KR100814416 B1 KR 100814416B1 KR 1020060094755 A KR1020060094755 A KR 1020060094755A KR 20060094755 A KR20060094755 A KR 20060094755A KR 100814416 B1 KR100814416 B1 KR 100814416B1
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- Prior art keywords
- silicon oxide
- polishing
- oxide film
- slurry composition
- polyoxyethylene
- Prior art date
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- 238000005498 polishing Methods 0.000 title claims abstract description 157
- 239000000203 mixture Substances 0.000 title claims abstract description 114
- 239000002002 slurry Substances 0.000 title claims abstract description 101
- 239000000126 substance Substances 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims description 39
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 129
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 128
- -1 amino compound Chemical class 0.000 claims abstract description 59
- 239000002736 nonionic surfactant Substances 0.000 claims abstract description 31
- 239000002563 ionic surfactant Substances 0.000 claims abstract description 29
- 239000003002 pH adjusting agent Substances 0.000 claims abstract description 20
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 claims abstract description 7
- 235000013922 glutamic acid Nutrition 0.000 claims abstract description 7
- 239000004220 glutamic acid Substances 0.000 claims abstract description 7
- CKLJMWTZIZZHCS-REOHCLBHSA-N L-aspartic acid Chemical compound OC(=O)[C@@H](N)CC(O)=O CKLJMWTZIZZHCS-REOHCLBHSA-N 0.000 claims abstract description 6
- WHUUTDBJXJRKMK-VKHMYHEASA-N L-glutamic acid Chemical compound OC(=O)[C@@H](N)CCC(O)=O WHUUTDBJXJRKMK-VKHMYHEASA-N 0.000 claims abstract description 6
- 235000003704 aspartic acid Nutrition 0.000 claims abstract description 6
- OQFSQFPPLPISGP-UHFFFAOYSA-N beta-carboxyaspartic acid Natural products OC(=O)C(N)C(C(O)=O)C(O)=O OQFSQFPPLPISGP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 claims description 36
- 238000007517 polishing process Methods 0.000 claims description 32
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 21
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims description 16
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims description 16
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 14
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 11
- 229920002125 Sokalan® Polymers 0.000 claims description 8
- 239000004584 polyacrylic acid Substances 0.000 claims description 8
- 239000002202 Polyethylene glycol Substances 0.000 claims description 6
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 6
- 229920001223 polyethylene glycol Polymers 0.000 claims description 6
- 229920001214 Polysorbate 60 Polymers 0.000 claims description 5
- 239000004147 Sorbitan trioleate Substances 0.000 claims description 5
- PRXRUNOAOLTIEF-ADSICKODSA-N Sorbitan trioleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](OC(=O)CCCCCCC\C=C/CCCCCCCC)[C@H]1OC[C@H](O)[C@H]1OC(=O)CCCCCCC\C=C/CCCCCCCC PRXRUNOAOLTIEF-ADSICKODSA-N 0.000 claims description 5
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 5
- 150000002148 esters Chemical class 0.000 claims description 5
- 239000000194 fatty acid Substances 0.000 claims description 5
- 229930195729 fatty acid Natural products 0.000 claims description 5
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 5
- 229920000259 polyoxyethylene lauryl ether Polymers 0.000 claims description 5
- 235000019337 sorbitan trioleate Nutrition 0.000 claims description 5
- 229960000391 sorbitan trioleate Drugs 0.000 claims description 5
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 claims description 4
- ZVZFHCZCIBYFMZ-UHFFFAOYSA-N 6-methylheptoxybenzene Chemical compound CC(C)CCCCCOC1=CC=CC=C1 ZVZFHCZCIBYFMZ-UHFFFAOYSA-N 0.000 claims description 4
- 150000004665 fatty acids Chemical class 0.000 claims description 4
- 239000011976 maleic acid Substances 0.000 claims description 4
- 229920002401 polyacrylamide Polymers 0.000 claims description 4
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 4
- VDZOOKBUILJEDG-UHFFFAOYSA-M tetrabutylammonium hydroxide Chemical compound [OH-].CCCC[N+](CCCC)(CCCC)CCCC VDZOOKBUILJEDG-UHFFFAOYSA-M 0.000 claims description 4
- CUNWUEBNSZSNRX-RKGWDQTMSA-N (2r,3r,4r,5s)-hexane-1,2,3,4,5,6-hexol;(z)-octadec-9-enoic acid Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO.OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO.CCCCCCCC\C=C/CCCCCCCC(O)=O.CCCCCCCC\C=C/CCCCCCCC(O)=O.CCCCCCCC\C=C/CCCCCCCC(O)=O CUNWUEBNSZSNRX-RKGWDQTMSA-N 0.000 claims description 3
- FFJCNSLCJOQHKM-CLFAGFIQSA-N (z)-1-[(z)-octadec-9-enoxy]octadec-9-ene Chemical compound CCCCCCCC\C=C/CCCCCCCCOCCCCCCCC\C=C/CCCCCCCC FFJCNSLCJOQHKM-CLFAGFIQSA-N 0.000 claims description 3
- BWDSMNCMUXDKJM-UHFFFAOYSA-N 1-docosoxydocosane 2-methylprop-2-enoic acid Chemical compound CC(=C)C(O)=O.CCCCCCCCCCCCCCCCCCCCCCOCCCCCCCCCCCCCCCCCCCCCC BWDSMNCMUXDKJM-UHFFFAOYSA-N 0.000 claims description 3
- XZIIFPSPUDAGJM-UHFFFAOYSA-N 6-chloro-2-n,2-n-diethylpyrimidine-2,4-diamine Chemical compound CCN(CC)C1=NC(N)=CC(Cl)=N1 XZIIFPSPUDAGJM-UHFFFAOYSA-N 0.000 claims description 3
- 229940035044 sorbitan monolaurate Drugs 0.000 claims description 3
- 229960005078 sorbitan sesquioleate Drugs 0.000 claims description 3
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical group FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 claims description 2
- CMCBDXRRFKYBDG-UHFFFAOYSA-N 1-dodecoxydodecane Chemical compound CCCCCCCCCCCCOCCCCCCCCCCCC CMCBDXRRFKYBDG-UHFFFAOYSA-N 0.000 claims description 2
- FDCJDKXCCYFOCV-UHFFFAOYSA-N 1-hexadecoxyhexadecane Chemical compound CCCCCCCCCCCCCCCCOCCCCCCCCCCCCCCCC FDCJDKXCCYFOCV-UHFFFAOYSA-N 0.000 claims description 2
- KMMMWIFBVVBJOD-UHFFFAOYSA-N 6-methylheptoxycyclohexane Chemical compound CC(C)CCCCCOC1CCCCC1 KMMMWIFBVVBJOD-UHFFFAOYSA-N 0.000 claims description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- 229920001213 Polysorbate 20 Polymers 0.000 claims description 2
- IYFATESGLOUGBX-YVNJGZBMSA-N Sorbitan monopalmitate Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O IYFATESGLOUGBX-YVNJGZBMSA-N 0.000 claims description 2
- HVUMOYIDDBPOLL-XWVZOOPGSA-N Sorbitan monostearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XWVZOOPGSA-N 0.000 claims description 2
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 claims description 2
- 235000010486 polyoxyethylene sorbitan monolaurate Nutrition 0.000 claims description 2
- 235000010483 polyoxyethylene sorbitan monopalmitate Nutrition 0.000 claims description 2
- 239000000249 polyoxyethylene sorbitan monopalmitate Substances 0.000 claims description 2
- 239000001593 sorbitan monooleate Substances 0.000 claims description 2
- 235000011069 sorbitan monooleate Nutrition 0.000 claims description 2
- 229940035049 sorbitan monooleate Drugs 0.000 claims description 2
- 235000011071 sorbitan monopalmitate Nutrition 0.000 claims description 2
- 239000001570 sorbitan monopalmitate Substances 0.000 claims description 2
- 229940031953 sorbitan monopalmitate Drugs 0.000 claims description 2
- 239000001587 sorbitan monostearate Substances 0.000 claims description 2
- 235000011076 sorbitan monostearate Nutrition 0.000 claims description 2
- 229940035048 sorbitan monostearate Drugs 0.000 claims description 2
- CBXCPBUEXACCNR-UHFFFAOYSA-N tetraethylammonium Chemical group CC[N+](CC)(CC)CC CBXCPBUEXACCNR-UHFFFAOYSA-N 0.000 claims description 2
- QEMXHQIAXOOASZ-UHFFFAOYSA-N tetramethylammonium Chemical compound C[N+](C)(C)C QEMXHQIAXOOASZ-UHFFFAOYSA-N 0.000 claims description 2
- LPSKDVINWQNWFE-UHFFFAOYSA-M tetrapropylazanium;hydroxide Chemical compound [OH-].CCC[N+](CCC)(CCC)CCC LPSKDVINWQNWFE-UHFFFAOYSA-M 0.000 claims description 2
- HBXWUCXDUUJDRB-UHFFFAOYSA-N 1-octadecoxyoctadecane Chemical compound CCCCCCCCCCCCCCCCCCOCCCCCCCCCCCCCCCCCC HBXWUCXDUUJDRB-UHFFFAOYSA-N 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 1
- 239000001818 polyoxyethylene sorbitan monostearate Substances 0.000 claims 1
- 235000010989 polyoxyethylene sorbitan monostearate Nutrition 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 32
- 239000002245 particle Substances 0.000 description 19
- 230000000052 comparative effect Effects 0.000 description 6
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical group [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003082 abrasive agent Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000005368 silicate glass Substances 0.000 description 3
- IEQAICDLOKRSRL-UHFFFAOYSA-N 2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-(2-dodecoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol Chemical compound CCCCCCCCCCCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO IEQAICDLOKRSRL-UHFFFAOYSA-N 0.000 description 2
- QYOVMAREBTZLBT-KTKRTIGZSA-N CCCCCCCC\C=C/CCCCCCCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO Chemical compound CCCCCCCC\C=C/CCCCCCCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO QYOVMAREBTZLBT-KTKRTIGZSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000013504 Triton X-100 Substances 0.000 description 2
- 229920004890 Triton X-100 Polymers 0.000 description 2
- 229920004896 Triton X-405 Polymers 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 101100107923 Vitis labrusca AMAT gene Proteins 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000011278 co-treatment Methods 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical class [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1454—Abrasive powders, suspensions and pastes for polishing
- C09K3/1463—Aqueous liquid suspensions
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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
- C09G—POLISHING COMPOSITIONS; SKI WAXES
- C09G1/00—Polishing compositions
- C09G1/02—Polishing compositions containing abrasives or grinding agents
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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
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1436—Composite particles, e.g. coated particles
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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
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1454—Abrasive powders, suspensions and pastes for polishing
- C09K3/1472—Non-aqueous liquid suspensions
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
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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
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/30625—With simultaneous mechanical treatment, e.g. mechanico-chemical polishing
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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
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/31051—Planarisation of the insulating layers
- H01L21/31053—Planarisation of the insulating layers involving a dielectric removal step
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- 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
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/32115—Planarisation
- H01L21/3212—Planarisation by chemical mechanical polishing [CMP]
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Abstract
Description
Claims (16)
- 세리아 연마제 0.1 내지 10중량%;이온성 계면활성제 0.1 내지 3.0중량%;비이온성 계면활성제 0.01 내지 0.1중량%;연마 가속제인 카르복실(carboxyl)기를 갖는 아미노 화합물에 해당하는 글루타믹산(Glutamic Acid), 아스파틱산(Aspartic Acid) 또는 이들의 혼합물 0.01 내지 1.0중량%; 및염기성 pH 조절제를 포함하는 여분의 물을 포함하는 것을 특징으로 하고, 단차로 인해 상부 실리콘 산화막과 저부 실리콘 산화막을 포함하는 실리콘 산화막을 고 평탄화시키는데 적용되는 고 평탄도 슬러리 조성물.
- 삭제
- 제1항에 있어서, 상기 이온성 계면활성제는 폴리아크릭산(Poly Acrylic Acid),폴리아크릭산-코-말릭산(Poly Acrylic Acid-co-Maleic Acid), 폴리아크릴아미드(Poly Acrylamide), 폴리아크릭아미드-코-아크릭산(Poly Acrylamide-co-Acrylic Acid), 폴리에틸렌글리콜 비핸일에테르 메타아크릴레이트(Poly Ethylene Glycol Behenyl Ether Methacrylate) 및 폴리에틸렌글리콜디에시드(Polyehtylene Glycol Diacid)로 이루어진 군으로부터 선택된 적어도 하나를 포함하는 것을 특징 으로 하는 고 평탄도 슬러리 조성물.
- 제1항에 있어서, 상기 비이온성 계면활성제는 폴리옥시에틸렌계 에테르, 폴리옥시에틸렌계 에스테르 및 솔비탄지방산계 에테르로 이루어진 군으로부터 선택된 적어도 하나를 포함하는 것을 특징으로 하는 고 평탄도 슬러리 조성물.
- 제4항에 있어서, 상기 폴리옥시에틸렌계 에테르는 폴리옥시에틸렌 글리콜 도데실 에테르(Polyoxyethylene glycol dodecyl ether), 폴리옥시에틸렌 라우릴 에테르(Polyoxyethylene lauryl ether), 폴리옥시에틸렌 세틸 에테르(Polyoxyethylene cetyl ether), 폴리옥시에틸렌 글리콜 헥사데실 에테르( Polyoxyethylene glycol hexadecyl ether), 폴리옥시에틸렌 스테아릴 에테르(Polyoxyethylene stearyl ether), 폴리옥시에틸렌 글리콜 옥타데실 에스테르(Polyoxyethylene glycol octadecyl ether), 폴리옥시에틸렌 오레일 에테르(Polyoxyethylene oleyl ether), 폴리옥시에틸렌 이소옥틸페닐 에테르(Polyoxyethylene isooctylphenyl ether), 폴리옥시에틸렌 노닐페닐 에테르(Polyoxyethylene nonylphenyl ether), 폴리옥시에틸렌 이소옥틸싸이클로헥실 에테르(Polyoxyethylene isooctylcyclohexyl ether) 및 폴리옥시에틸렌 노닐싸이클로헥실 에테르(Polyoxyethylene nonylcycloheyxl ether)로 이루어진 군으로부터 선택된 적어도 하나를 포함하는 것을 특징으로 하는 고 평탄도 슬러리 조성물.
- 제4항에 있어서, 상기 폴리옥시에티렌계 에스테르는 폴리옥시에틸렌 솔비탄 모노라우레이트(polyoxyethylene sorbitan monolaurate), 폴리옥시에틸렌 솔비탄 모노팔미테이트(polyoxyethylene sorbitan monopalmitate), 폴리옥시에틸렌 솔비탄 모노세트레이트(polyoxyethylene sorbitan monostearate) 및 폴리옥시에틸렌 솔비탄 트리올에이트(polyoxyethylene sorbitan trioleate)로 이루어진 군으로부터 선택된 적어도 하나를 포함하는 것을 특징으로 하는 고 평탄도 슬러리 조성물.
- 제4항에 있어서, 상기 솔비탄 지방산계 에테르는 솔비탄 모노올레이트(Sorbitan monooleate), 솔비탄 모노세트레이트(Sorbitan monostearate), 솔비탄 모노팔미테이트(Sorbitan monopalmitate), 솔비탄 세스쿠이올에이트(Sorbitan sesquioleate), 솔비탄 트리올에이트(Sorbitan trioleate), 솔비탄 모노라우레이트(Sorbitan monolaurate)로 이루어진 군으로부터 선택된 적어도 하나를 포함하는 것을 특징으로 하는 고 평탄도 슬러리 조성물.
- 삭제
- 제1항에 있어서, 상기 염기성 pH 조절제는 수산화 테트라 에틸 암모늄 (Tetra-Ethyl Ammonium Hydroixde), 수산화 테트라메틸 암모늄(Tetra-Methyl Ammonium Hydroixe), 수산화 테트라부틸 암모늄(Tetra-Butyl Ammonium Hydroxide) 및 수산화 테트라프로필 암모늄(Tetra-Propyl Ammonium Hydroxide)로 이루어진 군으로부터 선택된 적어도 하나를 포함하는 것을 특징으로 하는 고 평탄도 슬러리 조성물.
- 제1항에 있어서, pH가 4 내지 6.5인 것을 특징으로 하는 고 평탄도 슬러리 조성물.
- 단차로 인해 상부 실리콘 산화막와 저부 실리콘 산화막을 포함하는 실리콘 산화막에 고 평탄화 슬러리 조성물을 제공하여 상기 저부 실리콘 산화막의 표면이 노출되기 전까지 상기 상부 실리콘 산화막을 제1 화학 기계적 연마하는 단계; 및상기 고 평탄화 슬러리 조성물을 제공하여 상기 저부 실리콘 산화막이 셀프 연마 정지막으로 작용할 때까지 나머지 상부 실리콘 산화막을 제2 화학적 기계적 연마하는 단계를 포함하되,상기 고 평탄화 슬러리 조성물은 세리아 연마제 0.1 내지 10중량%, 이온성 계면활성제 0.1 내지 3.0중량%, 비이온성 계면활성제 0.01 내지 0.1중량%, 연마 가속제인 카르복실(carboxyl)기를 갖는 아미노 화합물에 해당하는 글루타믹산(Glutamic Acid), 아스파틱산(Aspartic Acid) 또는 이들의 혼합물 0.01 내지 1.0중량% 및 염기성 pH 조절제를 포함하는 여분의 물을 포함하는 것을 특징으로 하는 화학 기계적 연마 방법.
- 제11항에 있어서, 상기 상부 실리콘 산화막은 4.5 내지 8psi의 연마 압력에서 제1 화학 기계적 연마되고, 상기 저부 실리콘 산화막은 1.5 내지 4psi의 연마압력에서 제2 화학 기계적 연마되는 것을 특징으로 하는 화학 기계적 연마 방법.
- 제11항에 있어서, 상기 슬러리 조성물은 pH가 4 내지 6.5인 것을 특징으로 하는 화학 기계적 연마 방법.
- 삭제
- 구조물이 형성된 기판 상에 상기 구조물의 상부보다 높은 제1 상부를 갖는 제1 단차부와 상기 제1 단차부의 제1 상부 보다 낮은 제2 상부를 갖는 제2 단차부를 포함하는 실리콘 산화막을 마련하는 단계;상기 실리콘 산화막에 고 평탄화 슬러리 조성물을 제공하여 상기 제2 상부의 표면이 노출되기 전까지 상기 제1 단차부를 제1 화학 기계적 연마함으로써 상기 제1 단차부의 높이를 감소된 실리콘 산화막 패턴을 형성하는 단계; 및상기 제1 화학 기계적 연마공정의 연마압력이 상기 제2 상부에서 분산되어 상기 제2 단차부가 셀프 연마 정지막으로 작용할 때까지 상기 실리콘 산화막 패턴을 제 2 화학 기계적 연마하는 단계를 포함하되,상기 고 평탄화 슬러리 조성물은 세리아 연마제 0.1 내지 10중량%, 이온성 계면활성제 0.1 내지 3.0중량%, 비이온성 계면활성제 0.01 내지 0.1중량%, 연마 가속제인 카르복실(carboxyl)기를 갖는 아미노 화합물에 해당하는 글루타믹산(Glutamic Acid), 아스파틱산(Aspartic Acid) 또는 이들의 혼합물 0.01 내지 1.0중량% 및 염기성 pH 조절제를 포함하는 여분의 물을 포함하는 것을 특징으로 하는 화학 기계적 연마 방법.
- 제15항에 있어서, 상기 실리콘 산화막의 제1 단차부는 구조물이 존재하는 기판의 셀 영역 상에 존재하고, 상기 실리콘 산화막의 제2 단차부는 상기 기판의 폐리 영역 상에 존재하는 것을 특징으로 화학 기계적 연마 방법.
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KR101472858B1 (ko) * | 2012-11-07 | 2014-12-17 | 한양대학교 산학협력단 | 친환경 sti 공정용 슬러리 및 첨가제 조성물 |
KR101470979B1 (ko) * | 2013-07-05 | 2014-12-10 | 주식회사 케이씨텍 | 첨가제 조성물 및 이를 포함하는 슬러리 조성물 |
KR101483451B1 (ko) * | 2013-10-23 | 2015-01-16 | 주식회사 케이씨텍 | 슬러리 조성물 |
WO2015171468A1 (en) * | 2014-05-07 | 2015-11-12 | Applied Materials, Inc. | Modifying substrate thickness profiles |
US10464184B2 (en) | 2014-05-07 | 2019-11-05 | Applied Materials, Inc. | Modifying substrate thickness profiles |
KR20160015908A (ko) * | 2014-08-01 | 2016-02-15 | 주식회사 케이씨텍 | 금속막 연마용 슬러리 |
KR101674083B1 (ko) | 2014-08-01 | 2016-11-08 | 주식회사 케이씨텍 | 금속막 연마용 슬러리 |
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