KR101020613B1 - 탄탈 배리어 제거 용액 - Google Patents
탄탈 배리어 제거 용액 Download PDFInfo
- Publication number
- KR101020613B1 KR101020613B1 KR1020107014780A KR20107014780A KR101020613B1 KR 101020613 B1 KR101020613 B1 KR 101020613B1 KR 1020107014780 A KR1020107014780 A KR 1020107014780A KR 20107014780 A KR20107014780 A KR 20107014780A KR 101020613 B1 KR101020613 B1 KR 101020613B1
- Authority
- KR
- South Korea
- Prior art keywords
- guanidine
- tantalum
- weight
- chemical mechanical
- mechanical polishing
- Prior art date
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- 230000004888 barrier function Effects 0.000 title claims abstract description 65
- 229910052715 tantalum Inorganic materials 0.000 title claims abstract description 63
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 238000005498 polishing Methods 0.000 claims abstract description 59
- 229910052751 metal Inorganic materials 0.000 claims abstract description 37
- 239000002184 metal Substances 0.000 claims abstract description 37
- 239000000203 mixture Substances 0.000 claims abstract description 23
- PNKUSGQVOMIXLU-UHFFFAOYSA-N Formamidine Chemical compound NC=N PNKUSGQVOMIXLU-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000002245 particle Substances 0.000 claims abstract description 20
- 239000007800 oxidant agent Substances 0.000 claims abstract description 19
- 239000003112 inhibitor Substances 0.000 claims abstract description 18
- 239000000126 substance Substances 0.000 claims abstract description 17
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims abstract description 15
- 150000002739 metals Chemical class 0.000 claims abstract description 14
- 229920000642 polymer Polymers 0.000 claims abstract description 12
- 239000008139 complexing agent Substances 0.000 claims abstract description 11
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229920002635 polyurethane Polymers 0.000 claims abstract description 7
- 239000004814 polyurethane Substances 0.000 claims abstract description 7
- 235000012431 wafers Nutrition 0.000 claims description 25
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 claims description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- 230000001590 oxidative effect Effects 0.000 claims description 14
- BPMFZUMJYQTVII-UHFFFAOYSA-N guanidinoacetic acid Chemical compound NC(=N)NCC(O)=O BPMFZUMJYQTVII-UHFFFAOYSA-N 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 239000004065 semiconductor Substances 0.000 claims description 12
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 claims description 9
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 claims description 9
- 229960004198 guanidine Drugs 0.000 claims description 9
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 7
- UBDZFAGVPPMTIT-UHFFFAOYSA-N 2-aminoguanidine;hydron;chloride Chemical compound [Cl-].NC(N)=N[NH3+] UBDZFAGVPPMTIT-UHFFFAOYSA-N 0.000 claims description 6
- ZZTURJAZCMUWEP-UHFFFAOYSA-N diaminomethylideneazanium;hydrogen sulfate Chemical compound NC(N)=N.OS(O)(=O)=O ZZTURJAZCMUWEP-UHFFFAOYSA-N 0.000 claims description 6
- 229960000789 guanidine hydrochloride Drugs 0.000 claims description 6
- PJJJBBJSCAKJQF-UHFFFAOYSA-N guanidinium chloride Chemical compound [Cl-].NC(N)=[NH2+] PJJJBBJSCAKJQF-UHFFFAOYSA-N 0.000 claims description 6
- STIAPHVBRDNOAJ-UHFFFAOYSA-N carbamimidoylazanium;carbonate Chemical compound NC(N)=N.NC(N)=N.OC(O)=O STIAPHVBRDNOAJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000008119 colloidal silica Substances 0.000 claims description 5
- NDEMNVPZDAFUKN-UHFFFAOYSA-N guanidine;nitric acid Chemical compound NC(N)=N.O[N+]([O-])=O.O[N+]([O-])=O NDEMNVPZDAFUKN-UHFFFAOYSA-N 0.000 claims description 5
- NYYSPVRERVXMLJ-UHFFFAOYSA-N 4,4-difluorocyclohexan-1-one Chemical compound FC1(F)CCC(=O)CC1 NYYSPVRERVXMLJ-UHFFFAOYSA-N 0.000 claims description 4
- XPOLVIIHTDKJRY-UHFFFAOYSA-N acetic acid;methanimidamide Chemical compound NC=N.CC(O)=O XPOLVIIHTDKJRY-UHFFFAOYSA-N 0.000 claims description 4
- 150000002357 guanidines Chemical class 0.000 abstract description 11
- 229940083094 guanine derivative acting on arteriolar smooth muscle Drugs 0.000 abstract description 5
- 239000003082 abrasive agent Substances 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 24
- 238000005260 corrosion Methods 0.000 description 17
- 230000007797 corrosion Effects 0.000 description 17
- 239000010949 copper Substances 0.000 description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 12
- 229910052802 copper Inorganic materials 0.000 description 12
- 239000002002 slurry Substances 0.000 description 9
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 8
- 239000012964 benzotriazole Substances 0.000 description 8
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 7
- 239000003989 dielectric material Substances 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 6
- 229910052709 silver Inorganic materials 0.000 description 6
- 239000004332 silver Substances 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- BEGLCMHJXHIJLR-UHFFFAOYSA-N methylisothiazolinone Chemical compound CN1SC=CC1=O BEGLCMHJXHIJLR-UHFFFAOYSA-N 0.000 description 5
- -1 monopersulfate Chemical compound 0.000 description 5
- 238000006748 scratching Methods 0.000 description 5
- 230000002393 scratching effect Effects 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 4
- 239000003139 biocide Substances 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 229910001936 tantalum oxide Inorganic materials 0.000 description 3
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 2
- 229940100555 2-methyl-4-isothiazolin-3-one Drugs 0.000 description 2
- WHBMMWSBFZVSSR-UHFFFAOYSA-N 3-hydroxybutyric acid Chemical compound CC(O)CC(O)=O WHBMMWSBFZVSSR-UHFFFAOYSA-N 0.000 description 2
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 2
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 2
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- XYIBRDXRRQCHLP-UHFFFAOYSA-N ethyl acetoacetate Chemical compound CCOC(=O)CC(C)=O XYIBRDXRRQCHLP-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 239000004310 lactic acid Substances 0.000 description 2
- 235000014655 lactic acid Nutrition 0.000 description 2
- 239000001630 malic acid Substances 0.000 description 2
- 235000011090 malic acid Nutrition 0.000 description 2
- 235000006408 oxalic acid Nutrition 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical compound OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
- 229910052716 thallium Inorganic materials 0.000 description 2
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 description 2
- CWERGRDVMFNCDR-UHFFFAOYSA-N thioglycolic acid Chemical compound OC(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-N 0.000 description 2
- TUSDEZXZIZRFGC-UHFFFAOYSA-N 1-O-galloyl-3,6-(R)-HHDP-beta-D-glucose Natural products OC1C(O2)COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC1C(O)C2OC(=O)C1=CC(O)=C(O)C(O)=C1 TUSDEZXZIZRFGC-UHFFFAOYSA-N 0.000 description 1
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 1
- JOELYYRJYYLNRR-UHFFFAOYSA-N 2,3,5-trihydroxybenzoic acid Chemical compound OC(=O)C1=CC(O)=CC(O)=C1O JOELYYRJYYLNRR-UHFFFAOYSA-N 0.000 description 1
- GLDQAMYCGOIJDV-UHFFFAOYSA-N 2,3-dihydroxybenzoic acid Chemical compound OC(=O)C1=CC=CC(O)=C1O GLDQAMYCGOIJDV-UHFFFAOYSA-N 0.000 description 1
- GLVYLTSKTCWWJR-UHFFFAOYSA-N 2-carbonoperoxoylbenzoic acid Chemical compound OOC(=O)C1=CC=CC=C1C(O)=O GLVYLTSKTCWWJR-UHFFFAOYSA-N 0.000 description 1
- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 150000000703 Cerium Chemical class 0.000 description 1
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 239000001263 FEMA 3042 Substances 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 239000004471 Glycine Substances 0.000 description 1
- QNAYBMKLOCPYGJ-REOHCLBHSA-N L-alanine Chemical compound C[C@H](N)C(O)=O QNAYBMKLOCPYGJ-REOHCLBHSA-N 0.000 description 1
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- 229910002651 NO3 Inorganic materials 0.000 description 1
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
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- 239000000654 additive Substances 0.000 description 1
- 235000004279 alanine Nutrition 0.000 description 1
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- LRBQNJMCXXYXIU-NRMVVENXSA-N tannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-NRMVVENXSA-N 0.000 description 1
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- 229910003468 tantalcarbide Inorganic materials 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
Classifications
-
- 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
-
- 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
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/32—Organic compounds containing nitrogen
- C11D7/3272—Urea, guanidine or derivatives thereof
-
- 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System 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
-
- C11D2111/22—
Abstract
Description
Claims (10)
- 산화제 0 내지 25중량%; 비철 금속용 억제제 0.02 내지 15중량%; 비철 금속용 착화제 0 내지 20중량%; 포름아미딘, 포름아미딘설핀산, 포름아미딘 아세테이트, 구아니딘, 구아니딘 하이드로클로라이드, 구아니딘 설페이트, 아미노-구아니딘 하이드로클로라이드, 구아니딘 아세트산, 구아니딘 카보네이트, 구아니딘 니트레이트 및 이들의 혼합물로 이루어진 그룹으로부터 선택된 탄탈 제거제 0.01 내지 12중량%; 콜로이드성 실리카 연마제 0.01 내지 5중량%; 중합체성 입자 및 중합체-피복된 피복 입자로 이루어진 그룹으로부터 선택된 입자 총 0 내지 15중량%; 및 잔여량의 물을 포함하고,
질화탄탈 대 TEOS 선택비가, 웨이퍼에 대해 수직 방향으로 측정한 20.7kPa 미만의 미공성 폴리우레탄 연마 패드 압력으로 측정하여 3 대 1 이상인,
탄탈 배리어물의 제거에 유용한 화학 기계적 연마 용액. - 제1항에 있어서, 상기 탄탈 제거제가 0.1 내지 10중량%의 양으로 포함되는 것을 특징으로 하는, 탄탈 배리어물의 제거에 유용한 화학 기계적 연마 용액.
- 제1항에 있어서, 상기 비철 금속용 억제제가 아졸 억제제를 포함하는 것을 특징으로 하는, 탄탈 배리어물의 제거에 유용한 화학 기계적 연마 용액.
- 제1항에 있어서, 상기 탄탈 제거제가 구아니딘 하이드로클로라이드, 구아니딘 설페이트, 아미노-구아니딘 하이드로클로라이드, 구아니딘 아세트산, 구아니딘 카보네이트, 구아니딘 니트레이트 및 이들의 혼합물로 이루어진 그룹으로부터 선택되는 것을 특징으로 하는, 탄탈 배리어물의 제거에 유용한 화학 기계적 연마 용액.
- 산화제 0 내지 15중량%; 비철 금속용 억제제 0.02 내지 10중량%; 비철 금속용 착화제 0 내지 10중량%; 포름아미딘, 포름아미딘설핀산, 포름아미딘 아세테이트, 구아니딘, 구아니딘 하이드로클로라이드, 구아니딘 설페이트, 아미노-구아니딘 하이드로클로라이드, 구아니딘 아세트산, 구아니딘 카보네이트, 구아니딘 니트레이트 및 이들의 혼합물로 이루어진 그룹으로부터 선택된 탄탈 제거제 0.1 내지 10중량%; 콜로이드성 실리카 연마제 0.01 내지 1중량%; 중합체성 입자 및 중합체-피복된 피복 입자로 이루어진 그룹으로부터 선택된 입자 총 0 내지 10중량%; 및 잔여량의 물을 포함하는,
탄탈 배리어물의 제거에 유용한 화학 기계적 연마 용액. - 제5항에 있어서, 상기 탄탈 제거제가 구아니딘 하이드로클로라이드, 구아니딘 설페이트, 아미노-구아니딘 하이드로클로라이드, 구아니딘 아세트산, 구아니딘 카보네이트, 구아니딘 니트레이트 및 이들의 혼합물로 이루어진 그룹으로부터 선택되고, 0.2 내지 6중량%의 양으로 포함되는 것을 특징으로 하는, 탄탈 배리어물의 제거에 유용한 화학 기계적 연마 용액.
- 제5항에 있어서, 상기 콜로이드성 실리카 연마제가 0.01 내지 0.09중량%로 포함되는 것을 특징으로 하는, 탄탈 배리어물의 제거에 유용한 화학 기계적 연마 용액.
- 탄탈 배리어물과 유전체를 함유하는 웨이퍼 기판을 제1항의 화학 기계적 연마 용액과 접촉시키는 단계; 및
상기 웨이퍼 기판을 연마 패드로 연마하여 웨이퍼 기판으로부터 유전체에 대한 제거 속도보다 3배 이상 신속한 제거 속도(Å/min)로 탄탈 배리어물을 제거하는 단계;를 포함하는,
반도체 웨이퍼로부터 탄탈 배리어물을 제거하는 화학 기계적 연마 방법. - 제8항에 있어서, 상기 화학 기계적 연마 용액이 연마제를 0.01 내지 0.09중량% 함유하는 것을 특징으로 하는, 반도체 웨이퍼로부터 탄탈 배리어물을 제거하는 화학 기계적 연마 방법.
- 제8항에 있어서, 상기 화학 기계적 연마 용액이 연마제를 1중량% 미만 함유하고, 연마시 유전체 제거 속도보다 5배 이상 신속한 속도(Å/min)로 탄탈 배리어물이 제거되는 것을 특징으로 하는, 반도체 웨이퍼로부터 탄탈 배리어물을 제거하는 화학 기계적 연마 방법.
Applications Claiming Priority (2)
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US36740202P | 2002-03-25 | 2002-03-25 | |
US60/367,402 | 2002-03-25 |
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KR1020047015161A Division KR101005304B1 (ko) | 2002-03-25 | 2003-03-25 | 탄탈 배리어 제거 용액 |
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KR101020613B1 true KR101020613B1 (ko) | 2011-03-09 |
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KR1020047015161A KR101005304B1 (ko) | 2002-03-25 | 2003-03-25 | 탄탈 배리어 제거 용액 |
KR1020107014780A KR101020613B1 (ko) | 2002-03-25 | 2003-03-25 | 탄탈 배리어 제거 용액 |
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Country Status (9)
Country | Link |
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US (1) | US7491252B2 (ko) |
EP (1) | EP1490897B1 (ko) |
JP (1) | JP4560294B2 (ko) |
KR (2) | KR101005304B1 (ko) |
CN (1) | CN1319132C (ko) |
AU (1) | AU2003218389A1 (ko) |
DE (1) | DE60311569T2 (ko) |
TW (1) | TWI248970B (ko) |
WO (1) | WO2003083920A1 (ko) |
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CN1319132C (zh) | 2007-05-30 |
AU2003218389A1 (en) | 2003-10-13 |
KR20100084198A (ko) | 2010-07-23 |
WO2003083920A1 (en) | 2003-10-09 |
EP1490897B1 (en) | 2007-01-31 |
JP4560294B2 (ja) | 2010-10-13 |
EP1490897A1 (en) | 2004-12-29 |
TWI248970B (en) | 2006-02-11 |
DE60311569T2 (de) | 2007-11-15 |
JP2005522031A (ja) | 2005-07-21 |
TW200305637A (en) | 2003-11-01 |
DE60311569D1 (de) | 2007-03-22 |
KR101005304B1 (ko) | 2011-01-05 |
US20030181345A1 (en) | 2003-09-25 |
CN1643660A (zh) | 2005-07-20 |
US7491252B2 (en) | 2009-02-17 |
KR20040104956A (ko) | 2004-12-13 |
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