JP5312345B2 - 金属配線形成用cmpスラリー組成物 - Google Patents
金属配線形成用cmpスラリー組成物 Download PDFInfo
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- JP5312345B2 JP5312345B2 JP2009543952A JP2009543952A JP5312345B2 JP 5312345 B2 JP5312345 B2 JP 5312345B2 JP 2009543952 A JP2009543952 A JP 2009543952A JP 2009543952 A JP2009543952 A JP 2009543952A JP 5312345 B2 JP5312345 B2 JP 5312345B2
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- Japan
- Prior art keywords
- acid
- cmp slurry
- polishing
- slurry according
- cmp
- Prior art date
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- 239000002002 slurry Substances 0.000 title claims description 77
- 229910052751 metal Inorganic materials 0.000 title claims description 15
- 239000002184 metal Substances 0.000 title claims description 15
- 239000000203 mixture Substances 0.000 title claims description 4
- 238000005498 polishing Methods 0.000 claims description 74
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Substances C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 45
- 230000007797 corrosion Effects 0.000 claims description 36
- 238000005260 corrosion Methods 0.000 claims description 36
- 239000003112 inhibitor Substances 0.000 claims description 35
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 26
- 239000008139 complexing agent Substances 0.000 claims description 23
- -1 pyridine compound Chemical class 0.000 claims description 23
- 150000001875 compounds Chemical class 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 20
- 239000000126 substance Substances 0.000 claims description 20
- 125000004432 carbon atom Chemical group C* 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 14
- 238000001179 sorption measurement Methods 0.000 claims description 14
- 239000007800 oxidant agent Substances 0.000 claims description 13
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical group OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 12
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 claims description 8
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 8
- 229910021645 metal ion Inorganic materials 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 239000004793 Polystyrene Substances 0.000 claims description 7
- 125000004450 alkenylene group Chemical group 0.000 claims description 7
- 125000002947 alkylene group Chemical group 0.000 claims description 7
- 239000011146 organic particle Substances 0.000 claims description 7
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 6
- 229910044991 metal oxide Inorganic materials 0.000 claims description 6
- 150000004706 metal oxides Chemical class 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 230000003405 preventing effect Effects 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 239000011164 primary particle Substances 0.000 claims description 5
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 4
- ROFVEXUMMXZLPA-UHFFFAOYSA-N Bipyridyl Chemical group N1=CC=CC=C1C1=CC=CC=N1 ROFVEXUMMXZLPA-UHFFFAOYSA-N 0.000 claims description 4
- 239000004471 Glycine Substances 0.000 claims description 4
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 claims description 4
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 claims description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 4
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 4
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 claims description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 4
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims description 4
- 229920002223 polystyrene Polymers 0.000 claims description 4
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 claims description 4
- 150000003222 pyridines Chemical class 0.000 claims description 4
- GJAWHXHKYYXBSV-UHFFFAOYSA-N quinolinic acid Chemical compound OC(=O)C1=CC=CN=C1C(O)=O GJAWHXHKYYXBSV-UHFFFAOYSA-N 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 4
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 claims description 4
- XFNJVJPLKCPIBV-UHFFFAOYSA-N trimethylenediamine Chemical compound NCCCN XFNJVJPLKCPIBV-UHFFFAOYSA-N 0.000 claims description 4
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 3
- 235000011054 acetic acid Nutrition 0.000 claims description 3
- 235000006408 oxalic acid Nutrition 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- MLIWQXBKMZNZNF-KUHOPJCQSA-N (2e)-2,6-bis[(4-azidophenyl)methylidene]-4-methylcyclohexan-1-one Chemical compound O=C1\C(=C\C=2C=CC(=CC=2)N=[N+]=[N-])CC(C)CC1=CC1=CC=C(N=[N+]=[N-])C=C1 MLIWQXBKMZNZNF-KUHOPJCQSA-N 0.000 claims description 2
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 claims description 2
- LSRUBRSFDNKORM-UHFFFAOYSA-N 1,1-diaminopropan-1-ol Chemical compound CCC(N)(N)O LSRUBRSFDNKORM-UHFFFAOYSA-N 0.000 claims description 2
- YDMVPJZBYSWOOP-UHFFFAOYSA-N 1h-pyrazole-3,5-dicarboxylic acid Chemical compound OC(=O)C=1C=C(C(O)=O)NN=1 YDMVPJZBYSWOOP-UHFFFAOYSA-N 0.000 claims description 2
- SKWCZPYWFRTSDD-UHFFFAOYSA-N 2,3-bis(azaniumyl)propanoate;chloride Chemical compound Cl.NCC(N)C(O)=O SKWCZPYWFRTSDD-UHFFFAOYSA-N 0.000 claims description 2
- YNJSNEKCXVFDKW-UHFFFAOYSA-N 3-(5-amino-1h-indol-3-yl)-2-azaniumylpropanoate Chemical compound C1=C(N)C=C2C(CC(N)C(O)=O)=CNC2=C1 YNJSNEKCXVFDKW-UHFFFAOYSA-N 0.000 claims description 2
- MWVTWFVJZLCBMC-UHFFFAOYSA-N 4,4'-bipyridine Chemical group C1=NC=CC(C=2C=CN=CC=2)=C1 MWVTWFVJZLCBMC-UHFFFAOYSA-N 0.000 claims description 2
- XWNSFEAWWGGSKJ-UHFFFAOYSA-N 4-acetyl-4-methylheptanedinitrile Chemical compound N#CCCC(C)(C(=O)C)CCC#N XWNSFEAWWGGSKJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 2
- DCXYFEDJOCDNAF-UHFFFAOYSA-N Asparagine Natural products OC(=O)C(N)CC(N)=O DCXYFEDJOCDNAF-UHFFFAOYSA-N 0.000 claims description 2
- LEVWYRKDKASIDU-QWWZWVQMSA-N D-cystine Chemical compound OC(=O)[C@H](N)CSSC[C@@H](N)C(O)=O LEVWYRKDKASIDU-QWWZWVQMSA-N 0.000 claims description 2
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 2
- QNAYBMKLOCPYGJ-REOHCLBHSA-N L-alanine Chemical compound C[C@H](N)C(O)=O QNAYBMKLOCPYGJ-REOHCLBHSA-N 0.000 claims description 2
- DCXYFEDJOCDNAF-REOHCLBHSA-N L-asparagine Chemical compound OC(=O)[C@@H](N)CC(N)=O DCXYFEDJOCDNAF-REOHCLBHSA-N 0.000 claims description 2
- CKLJMWTZIZZHCS-REOHCLBHSA-N L-aspartic acid Chemical compound OC(=O)[C@@H](N)CC(O)=O CKLJMWTZIZZHCS-REOHCLBHSA-N 0.000 claims description 2
- HNDVDQJCIGZPNO-YFKPBYRVSA-N L-histidine Chemical compound OC(=O)[C@@H](N)CC1=CN=CN1 HNDVDQJCIGZPNO-YFKPBYRVSA-N 0.000 claims description 2
- QIVBCDIJIAJPQS-VIFPVBQESA-N L-tryptophane Chemical compound C1=CC=C2C(C[C@H](N)C(O)=O)=CNC2=C1 QIVBCDIJIAJPQS-VIFPVBQESA-N 0.000 claims description 2
- OTCCIMWXFLJLIA-UHFFFAOYSA-N N-acetyl-DL-aspartic acid Natural products CC(=O)NC(C(O)=O)CC(O)=O OTCCIMWXFLJLIA-UHFFFAOYSA-N 0.000 claims description 2
- OTCCIMWXFLJLIA-BYPYZUCNSA-N N-acetyl-L-aspartic acid Chemical compound CC(=O)N[C@H](C(O)=O)CC(O)=O OTCCIMWXFLJLIA-BYPYZUCNSA-N 0.000 claims description 2
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 claims description 2
- 229910019093 NaOCl Inorganic materials 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004642 Polyimide Substances 0.000 claims description 2
- 239000004153 Potassium bromate Substances 0.000 claims description 2
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 2
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 2
- QIVBCDIJIAJPQS-UHFFFAOYSA-N Tryptophan Natural products C1=CC=C2C(CC(N)C(O)=O)=CNC2=C1 QIVBCDIJIAJPQS-UHFFFAOYSA-N 0.000 claims description 2
- 229910021536 Zeolite Inorganic materials 0.000 claims description 2
- QUEDYRXQWSDKKG-UHFFFAOYSA-M [O-2].[O-2].[V+5].[OH-] Chemical compound [O-2].[O-2].[V+5].[OH-] QUEDYRXQWSDKKG-UHFFFAOYSA-M 0.000 claims description 2
- 239000001361 adipic acid Substances 0.000 claims description 2
- 235000011037 adipic acid Nutrition 0.000 claims description 2
- 235000004279 alanine Nutrition 0.000 claims description 2
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 235000001014 amino acid Nutrition 0.000 claims description 2
- 229940024606 amino acid Drugs 0.000 claims description 2
- 235000010323 ascorbic acid Nutrition 0.000 claims description 2
- 239000011668 ascorbic acid Substances 0.000 claims description 2
- 229960005070 ascorbic acid Drugs 0.000 claims description 2
- 235000009582 asparagine Nutrition 0.000 claims description 2
- 229960001230 asparagine Drugs 0.000 claims description 2
- 235000003704 aspartic acid Nutrition 0.000 claims description 2
- 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 description 2
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims description 2
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims description 2
- 239000011246 composite particle Substances 0.000 claims description 2
- 229960003067 cystine Drugs 0.000 claims description 2
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 claims description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 2
- HNDVDQJCIGZPNO-UHFFFAOYSA-N histidine Natural products OC(=O)C(N)CC1=CN=CN1 HNDVDQJCIGZPNO-UHFFFAOYSA-N 0.000 claims description 2
- MVFCKEFYUDZOCX-UHFFFAOYSA-N iron(2+);dinitrate Chemical compound [Fe+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MVFCKEFYUDZOCX-UHFFFAOYSA-N 0.000 claims description 2
- 239000004310 lactic acid Substances 0.000 claims description 2
- 235000014655 lactic acid Nutrition 0.000 claims description 2
- 239000011976 maleic acid Substances 0.000 claims description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid group Chemical group C(\C=C/C(=O)O)(=O)O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 2
- 239000001630 malic acid Substances 0.000 claims description 2
- 235000011090 malic acid Nutrition 0.000 claims description 2
- SIOXPEMLGUPBBT-UHFFFAOYSA-N picolinic acid Chemical compound OC(=O)C1=CC=CC=N1 SIOXPEMLGUPBBT-UHFFFAOYSA-N 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- 229920001721 polyimide Polymers 0.000 claims description 2
- 229920000193 polymethacrylate Polymers 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 229940094037 potassium bromate Drugs 0.000 claims description 2
- 235000019396 potassium bromate Nutrition 0.000 claims description 2
- 239000012286 potassium permanganate Substances 0.000 claims description 2
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 2
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 claims description 2
- LOAUVZALPPNFOQ-UHFFFAOYSA-N quinaldic acid Chemical compound C1=CC=CC2=NC(C(=O)O)=CC=C21 LOAUVZALPPNFOQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000011975 tartaric acid Substances 0.000 claims description 2
- 235000002906 tartaric acid Nutrition 0.000 claims description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 2
- 239000010457 zeolite Substances 0.000 claims description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N dimethylmethane Natural products CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims 2
- 239000001294 propane Substances 0.000 claims 2
- 239000011258 core-shell material Substances 0.000 claims 1
- SSJXIUAHEKJCMH-UHFFFAOYSA-N cyclohexane-1,2-diamine Chemical compound NC1CCCCC1N SSJXIUAHEKJCMH-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 description 22
- 125000004076 pyridyl group Chemical group 0.000 description 17
- 230000003628 erosive effect Effects 0.000 description 11
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- 235000012431 wafers Nutrition 0.000 description 8
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- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000008859 change Effects 0.000 description 3
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- 150000002430 hydrocarbons Chemical group 0.000 description 3
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- 239000000377 silicon dioxide Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
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- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
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- 125000004433 nitrogen atom Chemical group N* 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
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- OFDVABAUFQJWEZ-UHFFFAOYSA-N 3-pyridin-3-ylpyridine Chemical group C1=CN=CC(C=2C=NC=CC=2)=C1 OFDVABAUFQJWEZ-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
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- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
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- HUCVOHYBFXVBRW-UHFFFAOYSA-M caesium hydroxide Inorganic materials [OH-].[Cs+] HUCVOHYBFXVBRW-UHFFFAOYSA-M 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000013507 mapping Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 238000005502 peroxidation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000012066 reaction slurry Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 238000010558 suspension polymerization method Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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- 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
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Description
または、化学式2
で表われることができ、例えば、2,2’−ジピリジルエタン(2,2’−DPEA)、2,2’−ジピリジルエテン(2,2’−DPEE)、2,2’−ジピリジルプロパン、2,2’−ジピリジル(2,2’−DP)、3,3’−ジピリジルエタン(3,3’−DPEA)、3,3’−ジピリジルエテン(3,3’−DPEE)、3,3’−ジピリジルプロパン、3,3’−ジピリジル(3,3’−DP)、3,4’−ジピリジルエタン(3,4’−DPEA)、3,4’−ジピリジルエテン(3,4’−DPEE)、3,4’−ジピリジルプロパン、3,4’−ジピリジル(3,4’−DP)、4,4’−ジピリジルエタン(4,4’−DPEA)、4,4’−ジピリジルエテン(4,4’−DPEE)、4,4’−ジピリジルプロパン、4,4’−ジピリジル(4,4’−DP)が挙げられるが、これに制限されない。
本発明の酸化剤としては、配線材料を酸化させて酸化膜を形成することができるものであって、当業界で周知の酸化剤を使用することができ、例えば、過酸化水素、有機過酸化物、過硫酸アンモニウム(APS)、過硫酸カリウム(KPS)、次亜塩素酸(HOCl)、重クロム酸カリウム、過マンガン酸カリウム、硝酸鉄、フェリシアン化カリウム、過ヨウ素酸カリウム、次亜塩素酸ナトリウム(NaOCl)、三酸化バナジウム、臭素酸カリウム(KBrO3)などが挙げられる。前記有機過酸化物としては、過酢酸、過安息香酸及びtert−ブチルヒドロペルオキシドなどが挙げられるが、これに制限されない。これらは、単独または2種以上を混合して使用することができるが、過酸化水素を使用することが好ましい。
実施例1
ポリプロピレンボトルに、ポリスチレン(PS)2重量%、過酸化水素1重量%、グリシン0.5重量%、4,4’−ジピリジルエタン0.2重量%を入れ、水を加えた後、pHを2.8に調節して合計重量が100重量%になるようにし、10分間高速攪拌を行ってCMPスラリーを製造した。
下記の表1に示すように、研磨剤、錯化剤、腐食抑制剤及びpHを変えた以外は、実施例1と同様にしてCMPスラリーを製造し、Cuのエッチング速度を評価した。その結果を下記の表1に示す。
下記の表2に示すように、研磨剤、錯化剤、腐食抑制剤及びpHを変えた以外は、実施例1と同様にしてCMPスラリーを製造し、Cuのエッチング速度を評価した。その結果を下記の表2に示す。
実施例12
ポリプロピレンボトルに、ポリスチレン(PS)2重量%、過酸化水素1重量%、グリシン0.5重量%、4,4’−ジピリジルエタン0.2重量%を入れ、水を加えた後、pHを9.0に調節して合計重量が100重量%になるようにし、10分間高速攪拌を行ってCMPスラリーを製造した。
・研磨装備:CDP 1CM51(ロジテック社製)
・パッド:IC1000/SubaIV Stacked(ローデル社製)
・プラテン速度:75rpm
・キャリア速度:75rpm
・圧力:3psi
・スラリー流速:200ml/min
PVDで15000Å蒸着された6インチCuウェハ
金属膜の厚さ測定は、LEI1510 Rs Mapping(LEI社製)を使用して各膜の面抵抗を測定した後、次の式で算出した。
下記の表3に示すように、研磨剤及び腐食抑制剤を変えた以外は、実施例12と同様にしてCMPスラリーを製造し、研磨を行った後、研磨速度を評価した。その結果を下記の表3に示す。
下記の表4に示すように、研磨剤及び腐食抑制剤を変えた以外は、実施例12と同様にしてCMPスラリーを製造し、研磨を行った後、研磨速度を評価した。その結果を下記の表4に示す。
実施例15
ポリプロピレンボトルに、シリカ5重量%、過酸化水素0.1重量%、シュウ酸1重量%、4,4’−ジピリジルエタン0.1重量%を入れ、水を加えた後、pHを9.3に調節して合計重量が100重量%になるようにした後、10分間高速攪拌を行ってCMPスラリーを製造した。
下記の表5に示すように、腐食抑制剤を変えた以外は、実施例15と同様にしてCMPスラリーを製造し、研磨を行った後、研磨残留物が研磨パッドの表面に吸着したか否かを観察した。その結果を表5に示す。
Claims (16)
- 研磨剤、酸化剤、錯化剤、腐食抑制剤及び水を含むCMPスラリーであって、
前記腐食抑制剤は、次の化学式1
または、化学式2
で表されるピリジン系化合物を含むことを特徴とするCMPスラリー。 - 前記ピリジン系化合物は、金属膜の表面に物理的に吸着し、または、金属或いは金属イオンと化学的結合を形成できることを特徴とする請求項1に記載のCMPスラリー。
- 前記ピリジン系化合物は、2,2’−ジピリジルエタン(2,2’−DPEA)、2,2’−ジピリジルエテン(2,2’−DPEE)、2,2’−ジピリジルプロパン、3,3’−ジピリジルエタン(3,3’−DPEA)、3,3’−ジピリジルエテン(3,3’−DPEE)、3,3’−ジピリジルプロパン、3,4’−ジピリジルエタン(3,4’−DPEA)、3,4’−ジピリジルエテン(3,4’−DPEE)、3,4’−ジピリジルプロパン、4,4’−ジピリジルエタン(4,4’−DPEA)、4,4’−ジピリジルエテン(4,4’−DPEE)、4,4’−ジピリジルプロパンからなる群から選択されることを特徴とする請求項1に記載のCMPスラリー。
- 前記研磨剤は、金属酸化物、有機粒子及び有機−無機複合粒子からなる群から選択されることを特徴とする請求項1に記載のCMPスラリー。
- 前記金属酸化物は、シリカ(SiO2)、アルミナ(Al2O3)、セリア(CeO2)、ジルコニア(ZrO2)、チタニア(酸化チタン)及びゼオライトからなる群から選択されることを特徴とする請求項4に記載のCMPスラリー。
- 前記有機粒子は、
(i)ポリスチレン、スチレン系共重合体、ポリ(メタ)アクリレート、(メタ)アクリレート系共重合体、ポリ塩化ビニル、ポリアミド、ポリカーボネート、ポリイミドからなる群から選択され、または、
(ii)前記(i)から選択された少なくとも1つの高分子がコア、シェルまたは両方を構成するコア・シェル型構造の粒子であることを特徴とする請求項4に記載のCMPスラリー。 - 前記金属酸化物は、一次粒子のサイズが10〜200nmであり、前記有機粒子は、一次粒子のサイズが10〜500nmであることを特徴とする請求項4に記載のCMPスラリー。
- 前記酸化剤は、過酸化水素、過硫酸アンモニウム(APS)、過硫酸カリウム(KPS)、次亜塩素酸(HOCl)、重クロム酸カリウム、過マンガン酸カリウム、硝酸鉄、フェリシアン化カリウム、過ヨウ素酸カリウム、次亜塩素酸ナトリウム(NaOCl)、三酸化バナジウム、臭素酸カリウム(KBrO3)、過酢酸、過安息香酸及びtert−ブチルヒドロペルオキシドからなる群から選択されることを特徴とする請求項1に記載のCMPスラリー。
- 前記錯化剤は、アミノ酸系化合物、アミン系化合物及びカルボン酸系化合物からなる群から選択されることを特徴とする請求項1に記載のCMPスラリー。
- 前記錯化剤は、アラニン、グリシン、シスチン、ヒスチジン、アスパラギン、グアニジン、トリプトファン、1,2−ジアミノシクロヘキサン、ジアミノプロピオン酸、ヒドラジン、エチレンジアミン、1,2−ジアミノプロパン、1,3−ジアミノプロパン、ジアミノプロパノール、酢酸、乳酸、アスコルビン酸、キナルジン酸、ピリジンカルボン酸及びこれらの塩からなる群から選択されることを特徴とする請求項1に記載のCMPスラリー。
- 前記錯化剤は、少なくとも2つのカルボキシル基を含むカルボン酸化合物であることを特徴とする請求項1に記載のCMPスラリー。
- 前記錯化剤は、マレイン酸、リンゴ酸、酒石酸、マロン酸、フタル酸、シュウ酸、2,3−ピリジンジカルボン酸、アスパラギン酸、N−アセチルアスパラギン酸、アジピン酸、3,5−ピラゾールジカルボン酸、クエン酸、ニトロトリ酢酸、エチレンジアミン四酢酸及びこれらの塩からなる群から選択されることを特徴とする請求項1に記載のCMPスラリー。
- 前記研磨剤0.1〜30重量%、酸化剤0.1〜10重量%、錯化剤0.05〜5重量%、前記ピリジン系化合物0.001〜3重量%を含有し、水の含量は、全組成物100重量%になるように調節されることを特徴とする請求項1に記載のCMPスラリー。
- 前記CMPスラリーは、Cu配線形成用スラリーであることを特徴とする請求項1に記載のCMPスラリー。
- 請求項1乃至14のいずれか1つに記載のCMPスラリーを使用して金属膜、酸化膜、絶縁膜または金属配線を平坦化することを特徴とする化学機械研磨(CMP)方法。
- CMP過程における研磨残留物のパッドへの吸着を防止するものであって、
次の化学式1
または、化学式2
で表わされるピリジン系化合物を含むことを特徴とするパッド吸着防止剤。
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US20100068883A1 (en) | 2010-03-18 |
US8137580B2 (en) | 2012-03-20 |
WO2008082177A1 (en) | 2008-07-10 |
KR101002496B1 (ko) | 2010-12-17 |
CN101573425A (zh) | 2009-11-04 |
KR20080063214A (ko) | 2008-07-03 |
EP2125985A1 (en) | 2009-12-02 |
KR100954941B1 (ko) | 2010-04-27 |
KR20080063207A (ko) | 2008-07-03 |
JP2010515257A (ja) | 2010-05-06 |
EP2125985A4 (en) | 2011-01-12 |
TW200831655A (en) | 2008-08-01 |
CN101573425B (zh) | 2013-03-20 |
EP2125985B1 (en) | 2012-08-15 |
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