WO2007108215A1 - 研磨用組成物 - Google Patents
研磨用組成物 Download PDFInfo
- Publication number
- WO2007108215A1 WO2007108215A1 PCT/JP2007/000249 JP2007000249W WO2007108215A1 WO 2007108215 A1 WO2007108215 A1 WO 2007108215A1 JP 2007000249 W JP2007000249 W JP 2007000249W WO 2007108215 A1 WO2007108215 A1 WO 2007108215A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polishing composition
- water
- polishing
- weight
- composition according
- Prior art date
Links
- 238000005498 polishing Methods 0.000 title claims abstract description 154
- 239000000203 mixture Substances 0.000 title claims abstract description 93
- 239000000178 monomer Substances 0.000 claims abstract description 48
- 229920005989 resin Polymers 0.000 claims abstract description 47
- 239000011347 resin Substances 0.000 claims abstract description 47
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 40
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 38
- 125000003368 amide group Chemical group 0.000 claims abstract description 15
- 125000003277 amino group Chemical group 0.000 claims abstract description 15
- 230000000379 polymerizing effect Effects 0.000 claims abstract description 13
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 63
- 239000002184 metal Substances 0.000 claims description 39
- 229910052751 metal Inorganic materials 0.000 claims description 39
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical group OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 35
- 235000006408 oxalic acid Nutrition 0.000 claims description 21
- 239000012964 benzotriazole Substances 0.000 claims description 18
- 150000001875 compounds Chemical class 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 claims description 11
- 239000007800 oxidant agent Substances 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 150000001412 amines Chemical class 0.000 claims description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 4
- 239000011146 organic particle Substances 0.000 claims description 4
- 150000001413 amino acids Chemical class 0.000 claims description 3
- 150000001735 carboxylic acids Chemical class 0.000 claims description 3
- 239000010954 inorganic particle Substances 0.000 claims description 3
- 150000002576 ketones Chemical class 0.000 claims description 3
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 claims description 2
- 239000006061 abrasive grain Substances 0.000 description 29
- 230000003628 erosive effect Effects 0.000 description 23
- 238000004519 manufacturing process Methods 0.000 description 22
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 18
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 16
- 238000000034 method Methods 0.000 description 15
- -1 dialkylaminoalkyl methacrylates Chemical class 0.000 description 13
- 239000007787 solid Substances 0.000 description 13
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 10
- 229910021529 ammonia Inorganic materials 0.000 description 9
- 239000004065 semiconductor Substances 0.000 description 9
- 239000002002 slurry Substances 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 238000006116 polymerization reaction Methods 0.000 description 8
- 239000000654 additive Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 239000003505 polymerization initiator Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 238000006748 scratching Methods 0.000 description 5
- 230000002393 scratching effect Effects 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 229920003169 water-soluble polymer Polymers 0.000 description 5
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 4
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 125000000524 functional group Chemical group 0.000 description 4
- 229920003145 methacrylic acid copolymer Polymers 0.000 description 4
- 229940117841 methacrylic acid copolymer Drugs 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 4
- 229940044192 2-hydroxyethyl methacrylate Drugs 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 3
- 239000002518 antifoaming agent Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229920000620 organic polymer Polymers 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 2
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- IEVADDDOVGMCSI-UHFFFAOYSA-N 2-hydroxybutyl 2-methylprop-2-enoate Chemical compound CCC(O)COC(=O)C(C)=C IEVADDDOVGMCSI-UHFFFAOYSA-N 0.000 description 2
- JQXYBDVZAUEPDL-UHFFFAOYSA-N 2-methylidene-5-phenylpent-4-enoic acid Chemical compound OC(=O)C(=C)CC=CC1=CC=CC=C1 JQXYBDVZAUEPDL-UHFFFAOYSA-N 0.000 description 2
- YKXAYLPDMSGWEV-UHFFFAOYSA-N 4-hydroxybutyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCCO YKXAYLPDMSGWEV-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 229920002125 Sokalan® Polymers 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 230000009471 action Effects 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
- 235000001014 amino acid Nutrition 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 2
- 239000001630 malic acid Substances 0.000 description 2
- 235000011090 malic acid Nutrition 0.000 description 2
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 2
- 239000000113 methacrylic resin Substances 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 239000003002 pH adjusting agent Substances 0.000 description 2
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- BCMCBBGGLRIHSE-UHFFFAOYSA-N 1,3-benzoxazole Chemical compound C1=CC=C2OC=NC2=C1 BCMCBBGGLRIHSE-UHFFFAOYSA-N 0.000 description 1
- 229940058015 1,3-butylene glycol Drugs 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical compound CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 description 1
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
- VHSHLMUCYSAUQU-UHFFFAOYSA-N 2-hydroxypropyl methacrylate Chemical compound CC(O)COC(=O)C(C)=C VHSHLMUCYSAUQU-UHFFFAOYSA-N 0.000 description 1
- GWZMWHWAWHPNHN-UHFFFAOYSA-N 2-hydroxypropyl prop-2-enoate Chemical compound CC(O)COC(=O)C=C GWZMWHWAWHPNHN-UHFFFAOYSA-N 0.000 description 1
- XEEYSDHEOQHCDA-UHFFFAOYSA-N 2-methylprop-2-ene-1-sulfonic acid Chemical compound CC(=C)CS(O)(=O)=O XEEYSDHEOQHCDA-UHFFFAOYSA-N 0.000 description 1
- IONFARCGGIOTGH-UHFFFAOYSA-N 2-methylprop-2-enoic acid;propyl prop-2-enoate Chemical compound CC(=C)C(O)=O.CCCOC(=O)C=C IONFARCGGIOTGH-UHFFFAOYSA-N 0.000 description 1
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical compound FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 description 1
- ZWAPMFBHEQZLGK-UHFFFAOYSA-N 5-(dimethylamino)-2-methylidenepentanamide Chemical compound CN(C)CCCC(=C)C(N)=O ZWAPMFBHEQZLGK-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical group C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 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
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 description 1
- 239000004471 Glycine Substances 0.000 description 1
- XUJNEKJLAYXESH-REOHCLBHSA-N L-Cysteine Chemical compound SC[C@H](N)C(O)=O XUJNEKJLAYXESH-REOHCLBHSA-N 0.000 description 1
- CKLJMWTZIZZHCS-REOHCLBHSA-N L-aspartic acid Chemical compound OC(=O)[C@@H](N)CC(O)=O CKLJMWTZIZZHCS-REOHCLBHSA-N 0.000 description 1
- WHUUTDBJXJRKMK-VKHMYHEASA-N L-glutamic acid Chemical compound OC(=O)[C@@H](N)CCC(O)=O WHUUTDBJXJRKMK-VKHMYHEASA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical group CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 description 1
- CNCOEDDPFOAUMB-UHFFFAOYSA-N N-Methylolacrylamide Chemical compound OCNC(=O)C=C CNCOEDDPFOAUMB-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M acrylate group Chemical group C(C=C)(=O)[O-] NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000000746 allylic group Chemical group 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000002280 amphoteric surfactant Substances 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 235000003704 aspartic acid Nutrition 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- OQFSQFPPLPISGP-UHFFFAOYSA-N beta-carboxyaspartic acid Natural products OC(=O)C(N)C(C(O)=O)C(O)=O OQFSQFPPLPISGP-UHFFFAOYSA-N 0.000 description 1
- 235000019437 butane-1,3-diol Nutrition 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 125000002843 carboxylic acid group Chemical group 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000009918 complex formation Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 235000018417 cysteine Nutrition 0.000 description 1
- XUJNEKJLAYXESH-UHFFFAOYSA-N cysteine Natural products SCC(N)C(O)=O XUJNEKJLAYXESH-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- UIWXSTHGICQLQT-UHFFFAOYSA-N ethenyl propanoate Chemical compound CCC(=O)OC=C UIWXSTHGICQLQT-UHFFFAOYSA-N 0.000 description 1
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 235000013922 glutamic acid Nutrition 0.000 description 1
- 239000004220 glutamic acid Substances 0.000 description 1
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 1
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 150000002432 hydroperoxides Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- IWVKTOUOPHGZRX-UHFFFAOYSA-N methyl 2-methylprop-2-enoate;2-methylprop-2-enoic acid Chemical compound CC(=C)C(O)=O.COC(=O)C(C)=C IWVKTOUOPHGZRX-UHFFFAOYSA-N 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 1
- WTNTZFRNCHEDOS-UHFFFAOYSA-N n-(2-hydroxyethyl)-2-methylpropanamide Chemical compound CC(C)C(=O)NCCO WTNTZFRNCHEDOS-UHFFFAOYSA-N 0.000 description 1
- DNTMQTKDNSEIFO-UHFFFAOYSA-N n-(hydroxymethyl)-2-methylprop-2-enamide Chemical compound CC(=C)C(=O)NCO DNTMQTKDNSEIFO-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- RPQRDASANLAFCM-UHFFFAOYSA-N oxiran-2-ylmethyl prop-2-enoate Chemical compound C=CC(=O)OCC1CO1 RPQRDASANLAFCM-UHFFFAOYSA-N 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- QROGIFZRVHSFLM-UHFFFAOYSA-N prop-1-enylbenzene Chemical compound CC=CC1=CC=CC=C1 QROGIFZRVHSFLM-UHFFFAOYSA-N 0.000 description 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- LOAUVZALPPNFOQ-UHFFFAOYSA-N quinaldic acid Chemical compound C1=CC=CC2=NC(C(=O)O)=CC=C21 LOAUVZALPPNFOQ-UHFFFAOYSA-N 0.000 description 1
- 238000007717 redox polymerization reaction Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
- 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
- H01L21/3205—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]
-
- 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
-
- 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
- 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
- C09K3/1463—Aqueous liquid suspensions
-
- 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
- H01L21/3205—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]
- H01L21/32125—Planarisation by chemical mechanical polishing [CMP] by simultaneously passing an electrical current, i.e. electrochemical mechanical polishing, e.g. ECMP
Definitions
- the present invention relates to a polishing composition that can be polished and flattened without damaging a metal surface forming a wiring such as copper in a wiring forming process which is a process of manufacturing a semiconductor device.
- a groove for forming a wiring is formed on an insulating film, and a metal film for wiring is embedded in the groove by a staking method or the like to remove an excess metal film.
- CMP Chemical and Mechanical Polishing
- inorganic abrasives such as Lyceria, alumina, and silica have been used.
- these inorganic abrasive grains are high in hardness, and when polishing a metal film with low hardness such as copper, polishing scratches on the surface of the metal to be polished called scratches or metal to be polished called dishing at the center of the wiring portion.
- the 1 Z 2 wiring width on the insulating film has been further miniaturized from 1 30 ⁇ m to 90 nm, and further to 65 nm.
- the wiring pattern becomes a more complicated structure.
- Scratch is caused by partial overpolishing caused by the hardness of abrasive grains and the presence of aggregates of abrasive grains.
- Dating is caused by excessive polishing with hard abrasive grains, pH adjustment to promote dissolution of the metal to be polished to increase the polishing rate, and addition of additives.
- Erosion is caused by excessive polishing with hard abrasive grains and low polishing selectivity between the metal to be polished and an underlayer such as a barrier layer to prevent diffusion of the insulating film or metal.
- ECM P electrochemical mechanical polishing process
- Patent Document 1 the hardness of the inorganic abrasive grains A method of using low-polymer organic polymer compound particles as abrasive grains is disclosed.
- the organic polymer compound used here uses a resin that does not have a functional group, such as methacrylic resin or polystyrene resin, as the abrasive grain, the chemical action with the metal to be polished does not work at all and sufficient polishing is performed. Since the speed cannot be obtained, it cannot be used in the actual semiconductor device manufacturing process.
- Patent Document 2 a CMP including organic particles having a functional group capable of reacting with a metal to be polished An aqueous dispersion is disclosed, but dating and erosion are not mentioned.
- Patent Document 3 discloses a CMP abrasive containing a protective film forming agent and a water-soluble polymer.
- the water-soluble polymers used here are polyacrylic acid, polyacrylamide, and the like, but these water-soluble polymers are used for the purpose of suppressing etching, and when the blending amount exceeds 0.3 parts by weight. The polishing rate was reduced.
- Patent Document 1 Japanese Patent No. 3 1 7 2 0 0 8
- Patent Document 2 Japanese Patent Laid-Open No. 2 0 0 1 _ 5 5 5 5 9
- Patent Document 3 WO 0 1 Z 1 7 0 0 6 Publication
- An object of the present invention is to provide a polishing composition used in CMP, electropolishing, or ECMP, which shows a practical polishing rate and at the same time significantly suppresses the generation of scratching and erosion. To do.
- the present invention includes the following inventions.
- a polishing composition comprising a water-soluble resin obtained by polymerizing a vinyl monomer containing an amino group and Z or an amide group, wherein the water-soluble resin is used as a polishing composition.
- a polishing composition characterized by containing 1% by weight or more based on the total weight Composition.
- a water-soluble resin obtained by polymerizing a vinyl monomer containing an amino group and a Z or amide group comprises 1 to 100 parts by weight of methacrylamide and one or more other vinyl monomers.
- the water-soluble compound capable of forming a complex with the metal to be polished is at least one selected from carboxylic acids, amines, amino acids, ketones, and nitrogen-containing compounds.
- the polishing composition according to (7) characterized in that
- the oxidizing agent is hydrogen peroxide. Polishing composition.
- polishing comprising 1% by weight or more of a water-soluble resin obtained by polymerizing a vinyl monomer containing an amino group and Z or amide group of the present invention, based on the total weight of the polishing composition.
- the composition can polish an excessive metal film on the insulating film processed in the process of manufacturing a semiconductor device at a practical speed while suppressing generation of scratching, erosion and the like.
- the present invention is a polishing composition
- a polishing composition comprising a water-soluble resin obtained by polymerizing a vinyl monomer containing an amino group and Z or an amide group, and the water-soluble resin is based on the total weight of the polishing composition In an amount of 1% by weight or more.
- the polishing composition of the present invention may contain abrasive grains, a water-soluble compound capable of forming a complex with the metal to be polished, an oxidizing agent, and water.
- the water-soluble resin used in the present invention includes a water-soluble resin obtained by polymerizing a vinyl monomer containing an amino group and Z or an amide group.
- the water-soluble resin can be produced by a known method such as aqueous solution polymerization using the following monomers.
- the amino group-containing vinyl monomers used in the present invention include dialkylaminoalkyl methacrylates, dialkylaminoalkyl methacrylates, dihydroxyalkylaminoalkyl methacrylates, dihydroxyalkylaminoalkyl methacrylates. One type selected from these, or two or more types can be used in combination.
- amide group-containing vinyl monomer used in the present invention methacrylamide, acrylamide, N-alkyl methacrylamide, N-alkyl acrylamide, N, N_dialkylmethacrylamide, N, N— Dialkyla Kurylamide, N-methylol methacrylamide, N-methylol acrylamide, and the like can be mentioned, and one or more selected from these can be used in combination.
- Examples of the vinyl monomer containing both an amino group and an amide group used in the present invention include dialkylaminoalkylacrylamide, dialkylaminoalkylmethacrylamide and the like. Or two or more can be used in combination. However, it is not limited to these.
- methacrylamide is used from the viewpoint of suppressing the occurrence of dishing erosion in CMP or the like and expressing a practical polishing rate. It is preferable.
- one or more other vinyl monomers may be copolymerized with a vinyl monomer containing an amino group and a Z or amide group.
- methacrylic acid ester monomers acrylic acid ester monomers
- vinyl esters such as vinyl acetate and vinyl propionate
- Vinyl monomers containing cyano groups such as methacrylonitrile and acrylonitrile
- halogenated vinyl monomers such as vinyl chloride and vinylidene chloride
- styrene monomers such as styrene, monomethyl styrene, vinyl toluene A body etc.
- a vinyl monomer having a functional group may be used as the other vinyl monomer.
- the vinyl monomer having a functional group include vinyl monomers containing a carboxyl group such as methacrylic acid and acrylic acid, acetocetoxymethyl methacrylate, and acetocetoxy acetylene.
- the aspect in which at least one vinyl monomer containing a strong lpoxyl group is contained in another vinyl monomer that may be copolymerized is the dispersion stability of the polishing composition. Is particularly preferable.
- Examples of the vinyl monomer containing a carboxyl group include unsaturated monobasic acids such as acrylic acid, methacrylic acid, and crotonic acid, and unsaturated dibasic acids such as itaconic acid, fumaric acid, and maleic acid. Or a mixture of one or more selected from these monoesters is preferred. In particular, acrylic acid and methacrylic acid are preferably used.
- the water-soluble resin of the present invention can be copolymerized with a crosslinkable monomer, if necessary.
- a crosslinkable monomer examples include divinylbenzene, butadiene, ethylene glycol dimethacrylate, ethylene glycol dialkylene, 1,3-butyleneglycol as monomers containing two or more polymerizable unsaturated bonds in one molecule.
- examples include rudimethacrylate, methylenebisacrylamide, and the like.
- the amount of the crosslinkable monomer used depends on the type of the crosslinkable monomer used, but is usually 20% by weight or less, preferably 10% by weight based on the total amount of the vinyl monomer. % Used.
- a molecular weight modifier can be added to the water-soluble resin of the present invention as needed.
- the molecular weight modifier include mercaptans such as t-dodecyl mercabtan, n-dodecyl mercabtan, aryl compounds such as allylic sulfonic acid, methallyl sulfonic acid, and salts thereof, alcohols of isopropanol, and the like. Can do.
- Examples of the polymerization initiator used when polymerizing the water-soluble resin used in the present invention include water-soluble polymerization initiators such as persulfate, hydrogen peroxide, organic hydroperoxide, and azobiscianovaleric acid. Bisisobutylonitrile, benzoyl peroxide, etc.
- Examples of the oil-soluble polymerization initiator may include redox polymerization initiators combined with a reducing agent.
- the amount of the polymerization initiator used is not particularly limited and may be in accordance with a known technique. Usually, it is used in the range of 0.1 to 10 parts by weight with respect to 100 parts by weight of the vinyl monomer. The range of 0.1 to 5 parts by weight is particularly preferable. Further, it is particularly preferable that the polymerization initiator does not contain a metal salt.
- a stabilizer may be added to the water-soluble resin of the present invention.
- the stabilizer include water-soluble polymers such as polyvinyl alcohol, modified polyvinyl alcohol, polyvinyl pyrrolidone, methacrylic acid polymer, acrylic acid polymer, methacrylic acid monoacrylic acid copolymer, and ethylene glycol. it can. Further, anionic, nonionic, cationic, amphoteric surfactants and the like can be used.
- anionic surfactants have an acidic group such as a sulfonic acid group or a carboxylic acid group as a hydrophilic group, but the counter ion is preferably a metal salt such as Na or K, In general, an ammonium salt is preferably used.
- the water-soluble resin obtained by polymerizing the vinyl monomer containing an amino group and Z or amide group used in the present invention is 1 to 100 parts by weight of methacrylamide, preferably 50 to 99. 5 parts by weight Others It is preferably composed of a copolymer obtained by polymerizing 99 to 0 parts by weight, preferably 50 to 0.5 parts by weight of one or more kinds of vinyl monomers.
- Such a water-soluble resin can effectively suppress the generation of date erosion in CMP or the like, and can exhibit a practical polishing rate.
- the weight average molecular weight of the water-soluble resin in the present invention is not particularly limited, but is preferably 500 to 5000000, more preferably 100000 to 500000. If the weight average molecular weight is less than 5,000, a sufficient polishing rate may not be obtained. If the weight average molecular weight exceeds 5000000, the slurry viscosity increases, and the slurry one-component circulation decreases, and the performance may vary. Therefore, if the weight average molecular weight of the water-soluble resin is within the above range, the polishing rate and the slurry viscosity Productivity is further improved due to its excellent balance.
- the content of the water-soluble resin in the polishing composition is 1% by weight or more, preferably 1% to 20% by weight, more preferably 2 to 20% by weight. is there. If it is less than 1% by weight, it is difficult to obtain the effect of adding such as polishing at a practical polishing rate. In contrast, if the amount of the water-soluble resin added is 1% by weight or more, polishing can be performed at a practical polishing rate, and generation of scratches, dating, and erosion can be remarkably suppressed in CMP and the like. .
- the polishing composition may have a high viscosity, and good polishing performance may not be obtained. Therefore, if it is the said numerical range, the said effect will be acquired and the viscosity of polishing composition will become an appropriate range, and workability
- organic abrasive grains and Z or inorganic abrasive grains may be added to efficiently improve the polishing rate.
- Examples of the inorganic abrasive include inorganic particles such as alumina abrasive and silica abrasive. However, since excessive inorganic abrasive grains cause problems such as scratches, it is preferable to add the minimum necessary amount within a range in which the object of the present invention can be achieved.
- organic abrasive grains examples include abrasive grains (organic particles) made of an organic polymer such as methacrylic resin, acrylic resin, styrene resin, melamine resin, and polycarbonate resin.
- Organic abrasive grains can be preferably used in order not to cause problems such as scratches.
- the amount of organic abrasive added is preferably 1 to 20% by weight, more preferably 2 to 20% by weight of the polishing composition.
- water-soluble compounds that can form a complex with the metal to be polished include carboxylic acids such as acetic acid, oxalic acid, malic acid, tartaric acid, succinic acid, and succinic acid, methylamine, Amines such as dimethylamine, trimethylamine, ethylamine, jetylamine, triethylamine, etc., amino acids such as glycine, aspartic acid, glutamic acid, cysteine, ketones such as acetylacetone, nitrogen-containing compounds such as ammonia, urine, imidazole, etc. Etc. Of these, oxalic acid, malic acid, and ethylamine are preferably used.
- the optimum amount of the water-soluble compound varies depending on the compound used, but is preferably in the range of 0.1 to 10% by weight in the polishing composition. If the amount is less than 1% by weight, the effect of addition cannot be sufficiently exhibited, and the target polishing rate may not be achieved. On the other hand, if it exceeds 10% by weight, complex formation with the metal to be polished proceeds excessively, and dating may occur. In other words, by using a polishing composition in which the amount of the water-soluble compound added is in the above range, polishing can be performed at a practical polishing rate, and dishing can be further suppressed.
- the oxidizing agent used in the present invention a known oxidizing agent can be used, but hydrogen peroxide can be preferably used.
- the addition amount of the oxidizing agent is preferably in the range of 0.1 to 15% by weight, particularly preferably in the range of 0.5 to 5% by weight in the polishing composition. If it is less than 1% by weight, the chemical reaction between the metal to be polished and the polishing composition does not proceed sufficiently, and the intended polishing rate may not be achieved. On the other hand, if it exceeds 15% by weight, the oxide film formed on the surface of the metal to be polished becomes passivated and is difficult to polish, and the target polishing rate may not be achieved.
- a halogen-containing compound containing chlorine, fluorine, iodine or the like may be added as a polishing accelerator.
- a nitrogen-containing heterocyclic compound such as benzotriazole or quinaldic acid may be added as an anticorrosive.
- the polishing composition of the present invention includes before the polymerization of the water-soluble polymer, during the polymerization.
- Other additives may be added after polymerization. Additives added in this way include wetting agents, antistatic agents, antioxidants, preservatives, UV absorbers, light stabilizers, fluorescent brighteners, colorants, penetrants, foaming agents, release agents. Examples include molds, antifoaming agents, antifoaming agents, antifoaming agents, fluidity improvers, thickeners and the like. These additives are preferably those containing no metal salt.
- additives may be used alone or in combination of two or more additives.
- the type and amount of addition are not particularly limited as long as the object of the present invention can be achieved.
- the method for producing the polishing composition of the present invention is not particularly limited as long as each of the above components can be uniformly dispersed in water.
- it can be obtained by adding water to an aqueous solution containing a water-soluble resin obtained by aqueous solution polymerization, if necessary, and further dispersing water using a normal stirring device.
- ⁇ 1-1 is in the range of 5-11, more preferably 7-
- the substance used for preparing the pH of the polishing composition of the present invention is not particularly limited, but a substance containing no metal salt is preferably used.
- alkaline substance examples include amines such as methylamine, dimethylamine, trimethylamine, ethylamine, jetylamine, and triethylamine.
- Examples of the acidic substance include inorganic acids such as hydrochloric acid and nitric acid, and organic acids such as acetic acid, oxalic acid and citrate. These pH adjusters are the same as those described above. It may be a water-soluble compound capable of forming a complex with a genus. Moreover, one kind of pH adjusting agent may be used, or two or more kinds of pH adjusting agents may be used in combination.
- the excessive metal film on the insulating film that has been subjected to wiring processing in the process of manufacturing a semiconductor device can be suppressed at a practical speed by suppressing generation of scratching, erosion, and the like. Can be polished.
- organic abrasive grains 1 to 20% by weight of organic abrasive grains, preferably 2 to 20% by weight,
- water-soluble compound capable of forming a complex with the metal to be polished preferably 0.5 to 5 parts by weight
- An oxidizing agent can be included in an amount of 0.1 to 15% by weight, preferably 0.5 to 5% by weight.
- the combination of the above numerical ranges can be selected as appropriate.
- the metal film on the insulating film processed in the process of manufacturing the semiconductor device can be polished at a practical speed while effectively suppressing the occurrence of scratching, erosion, etc. .
- the polishing composition of the present invention uses organic abrasive grains, the polishing composition has a solid content of 100 wt%,
- Organic abrasive grains are used in an amount of 2.2 to 9 4.3 weight 0 / o, preferably 6.3 to 8 7.0 weight 0 / o of a water-soluble compound capable of forming a complex with the metal to be polished. 6% by weight, preferably 1.1-5 2.6 weight 0 / o, An oxidizing agent may be included in an amount of 0.2 to 87.7 wt. 0 / o, preferably 1.1 to 52.6 wt.%. The combination of the above numerical ranges can be selected as appropriate.
- a polishing composition having such a composition ratio is particularly excellent in the above effects.
- polishing composition was evaluated by the following method.
- the following polished object 1 was used for polishing rate evaluation, and the following polished object 2 was used to evaluate the amount of dating and erosion.
- Object to be polished 1 Silicon thermal oxide film 5000 Ta film formed by AZ sputtering method 300 Copper seed film for plating formed by AZCVD method 1500 Copper film formed by AZ plating method 1500 inch 8-layer silicon wafer laminated with OA
- Object to be polished 2 Silicon wafer with wiring pattern (Product name: SEM ATECH # 854)
- polishing rate was evaluated using the above-described object 1 using the following conditions and equipment: Polishing slurry: Polishing compositions obtained in Examples 1 to 5 and Comparative Examples 1 to 3 Polishing apparatus: La pma ster LGD—15
- Polishing pad 34 Omm I C_ 100 OZs u b a 400, XY groove
- Polishing time 1 m i n.
- polishing rate The object to be polished 1 was washed with ultrapure water and subjected to ultrasonic cleaning and then dried, and the film thickness was measured by sheet resistance measurement using a 4-terminal probe. The average polishing rate was calculated from the amount of change in film thickness before and after polishing and the polishing time.
- the object 2 was polished using the conditions and apparatus used for evaluating the polishing rate.
- polishing was carried out by taking a polishing time that was 10% higher than the time required to complete the polishing of the copper in the portion where no groove was formed.
- the thickness of the concave portion seen in the center of the copper wiring groove in the area of the wiring width of 10 m was measured using a stylus type step meter (0-chome 30 0 30 manufactured by ULVAC).
- the cross-sectional shape of the region 2 with a wiring width of 10 ⁇ m and the region with a wiring width of 100 m used in the evaluation of dishing amount 2 was observed using SEM. Observe that there is no erosion due to overpolishing in the barrier layer and the insulation film. If no Ta film or silicon thermal oxide film is missing, the Ta film is missing silicon thermal oxide film. The case was evaluated as X.
- a flask equipped with a dropping funnel, a stirrer, a thermometer, and a reflux condenser was charged with 400 parts by weight of distilled water (hereinafter simply referred to as “parts”), and the atmosphere was replaced with nitrogen while stirring.
- the temperature was raised to. While maintaining the temperature at 70 ° C, 2.0 parts of ammonium persulfate was added as a polymerization initiator.
- a mixed aqueous solution consisting of 500 parts of distilled water, 85 parts of methacrylamide, 10 parts of methacrylic acid and 5 parts of methacrylic acid was dropped into the flask over 3 hours. After the dropwise addition, stirring was continued at the same temperature for 4 hours to complete the polymerization reaction, and a water-soluble resin having a polymerization average molecular weight of 3800 was obtained.
- Methacrylamide 8 5 parts, Methacrylic acid 10 parts, Ethyl acrylate 5 parts A water-soluble resin having a polymerization average molecular weight of 52,000 was obtained in the same manner as in Production Example 1, except that 99 parts of dimethylaminoethyl methacrylate and 1 part of acrylic acid were used instead.
- the amount of ammonium persulfate added is 1.5 parts, 85 parts of methacrylamide, 10 parts of methacrylic acid and 5 parts of ethyl acetate, 85 parts of methacrylic acid and 5 parts of 2-hydroxyethyl methacrylate
- a water-soluble resin having a polymerization average molecular weight of 47000 was obtained in the same manner as in Production Example 1 except that was used.
- the polishing composition was prepared so that the pH was 2.0%, the oxalic acid concentration was 1.0%, the benzotriazole concentration was 0.018%, and the pH was 7.2. Using this polishing composition, the polishing rate, the amount of dishing, and the erosion were evaluated. The results are shown in Table 1.
- Water-soluble resin prepared in Production Example 4 oxalic acid, hydrogen peroxide solution, ammonia , Benzotriazole and pure water are mixed well, the solid content concentration of water-soluble resin is 5.0%, hydrogen peroxide concentration is 2.0%, oxalic acid concentration is 1.0%, and benzotriazole concentration is 0
- the polishing composition was prepared so that the pH was 01 8% and the pH was 7.2. Using this polishing composition, the polishing rate, the amount of dishing, and the erosion were evaluated. The results are shown in Table 1.
- the polyvinyl alcohol of the product name PVA 1 17 manufactured by Kuraray is mixed well with oxalic acid, hydrogen peroxide, ammonia, benzotriazole, and pure water, and the solid content concentration of polyvinyl alcohol is 5
- the polishing composition should have a pH of 7.2, 0%, hydrogen peroxide concentration of 2.0%, oxalic acid concentration of 1.0%, benzotriazole concentration of 0.018%. Prepared. The polishing rate, dishing amount, and erosion were evaluated using this polishing composition. The results are shown in Table 1.
- the polishing composition was prepared so that the pH was 2.0%, the oxalic acid concentration was 1.0%, the benzotriazole concentration was 0.018%, and the pH was 7.2. Using this polishing composition, the polishing rate, the amount of dishing, and the erosion were evaluated. The results are shown in Table 1.
- Example 1 2700 900 ⁇ Example 2 3300 500 ⁇ Example 3 1800 1050 ⁇ Example 4 2200 1700 ⁇ Example 5 1180 1500 ⁇ Comparative Example 1 5300 3200 ⁇ Comparative Example 2 520 2800 ⁇ Comparative Example 3 670 1100 ⁇
- polishing composition of the present invention By using the polishing composition of the present invention, it has become possible to provide a polishing composition having a polishing rate that can withstand practical use while keeping the amount of dishing low without causing erosion.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/225,374 US8147712B2 (en) | 2006-03-20 | 2007-03-19 | Polishing composition |
JP2008506177A JPWO2007108215A1 (ja) | 2006-03-20 | 2007-03-19 | 研磨用組成物 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006076071 | 2006-03-20 | ||
JP2006-076071 | 2006-03-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007108215A1 true WO2007108215A1 (ja) | 2007-09-27 |
Family
ID=38522251
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/000249 WO2007108215A1 (ja) | 2006-03-20 | 2007-03-19 | 研磨用組成物 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8147712B2 (ja) |
JP (1) | JPWO2007108215A1 (ja) |
KR (1) | KR101067095B1 (ja) |
TW (1) | TWI343942B (ja) |
WO (1) | WO2007108215A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010140592A1 (ja) * | 2009-06-05 | 2010-12-09 | Jsr株式会社 | 表面処理用組成物、表面処理方法および半導体装置の製造方法 |
WO2015141687A1 (ja) * | 2014-03-17 | 2015-09-24 | 日本キャボット・マイクロエレクトロニクス株式会社 | スラリー組成物および基板研磨方法 |
US10717899B2 (en) | 2013-03-19 | 2020-07-21 | Fujimi Incorporated | Polishing composition, method for producing polishing composition and polishing composition preparation kit |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009017095A1 (ja) * | 2007-07-30 | 2009-02-05 | Hitachi Chemical Co., Ltd. | 金属用研磨液及び研磨方法 |
JP5544244B2 (ja) | 2010-08-09 | 2014-07-09 | 株式会社フジミインコーポレーテッド | 研磨用組成物および研磨方法 |
TWI482496B (zh) * | 2011-01-07 | 2015-04-21 | Gorilla Technology Inc | 媒體排程播送裝置、系統、頻道自動排程方法與其記錄媒體 |
US8961807B2 (en) | 2013-03-15 | 2015-02-24 | Cabot Microelectronics Corporation | CMP compositions with low solids content and methods related thereto |
US10557212B2 (en) * | 2016-03-08 | 2020-02-11 | Chemeon Surface Technology, Llc | Electropolishing method and product |
JP6659449B2 (ja) * | 2016-05-09 | 2020-03-04 | 山口精研工業株式会社 | 無電解ニッケル−リンめっきされたアルミニウム磁気ディスク基板用研磨剤組成物 |
JP6734146B2 (ja) * | 2016-08-23 | 2020-08-05 | 山口精研工業株式会社 | 磁気ディスク基板用研磨剤組成物 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004107429A1 (ja) * | 2003-05-28 | 2004-12-09 | Hitachi Chemical Co., Ltd. | 研磨剤及び研磨方法 |
JP2005191544A (ja) * | 2003-11-13 | 2005-07-14 | Rohm & Haas Electronic Materials Cmp Holdings Inc | 銅を研磨するための組成物及び方法 |
JP2005217396A (ja) * | 2003-12-22 | 2005-08-11 | Rohm & Haas Electronic Materials Cmp Holdings Inc | 銅の低ダウンフォース圧力研磨のための組成物及び方法 |
JP2005353681A (ja) * | 2004-06-08 | 2005-12-22 | Hitachi Chem Co Ltd | 半導体絶縁膜用cmp研磨剤、その製造方法及び基板の研磨方法 |
JP2006093170A (ja) * | 2004-09-21 | 2006-04-06 | Mitsui Chemicals Inc | 研磨用組成物 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3172008B2 (ja) | 1993-09-17 | 2001-06-04 | 株式会社東芝 | 半導体装置の製造方法 |
JP4038943B2 (ja) | 1999-08-18 | 2008-01-30 | Jsr株式会社 | 化学機械研磨用水系分散体 |
KR100512453B1 (ko) | 1999-08-26 | 2005-09-07 | 히다치 가세고교 가부시끼가이샤 | 화학기계연마용 연마제 및 연마방법 |
US6568997B2 (en) * | 2001-04-05 | 2003-05-27 | Rodel Holdings, Inc. | CMP polishing composition for semiconductor devices containing organic polymer particles |
US6620215B2 (en) * | 2001-12-21 | 2003-09-16 | Dynea Canada, Ltd. | Abrasive composition containing organic particles for chemical mechanical planarization |
JP2003313542A (ja) * | 2002-04-22 | 2003-11-06 | Jsr Corp | 化学機械研磨用水系分散体 |
JP2004311967A (ja) * | 2003-03-27 | 2004-11-04 | Nippon Shokubai Co Ltd | Cmp研磨剤用ポリマー及び組成物 |
JP2004335689A (ja) * | 2003-05-07 | 2004-11-25 | Mitsui Chemicals Inc | 銅研磨用スラリー |
JP2004342751A (ja) * | 2003-05-14 | 2004-12-02 | Toshiba Corp | Cmp用スラリー、研磨方法、および半導体装置の製造方法 |
JP2004349426A (ja) * | 2003-05-21 | 2004-12-09 | Jsr Corp | Sti用化学機械研磨方法 |
JP4637464B2 (ja) * | 2003-07-01 | 2011-02-23 | Jsr株式会社 | 化学機械研磨用水系分散体 |
-
2007
- 2007-03-19 WO PCT/JP2007/000249 patent/WO2007108215A1/ja active Application Filing
- 2007-03-19 US US12/225,374 patent/US8147712B2/en not_active Expired - Fee Related
- 2007-03-19 JP JP2008506177A patent/JPWO2007108215A1/ja active Pending
- 2007-03-19 KR KR1020087025488A patent/KR101067095B1/ko not_active IP Right Cessation
- 2007-03-20 TW TW096109479A patent/TWI343942B/zh not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004107429A1 (ja) * | 2003-05-28 | 2004-12-09 | Hitachi Chemical Co., Ltd. | 研磨剤及び研磨方法 |
JP2005191544A (ja) * | 2003-11-13 | 2005-07-14 | Rohm & Haas Electronic Materials Cmp Holdings Inc | 銅を研磨するための組成物及び方法 |
JP2005217396A (ja) * | 2003-12-22 | 2005-08-11 | Rohm & Haas Electronic Materials Cmp Holdings Inc | 銅の低ダウンフォース圧力研磨のための組成物及び方法 |
JP2005353681A (ja) * | 2004-06-08 | 2005-12-22 | Hitachi Chem Co Ltd | 半導体絶縁膜用cmp研磨剤、その製造方法及び基板の研磨方法 |
JP2006093170A (ja) * | 2004-09-21 | 2006-04-06 | Mitsui Chemicals Inc | 研磨用組成物 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010140592A1 (ja) * | 2009-06-05 | 2010-12-09 | Jsr株式会社 | 表面処理用組成物、表面処理方法および半導体装置の製造方法 |
JP2010283198A (ja) * | 2009-06-05 | 2010-12-16 | Jsr Corp | 表面処理用組成物、表面処理方法および半導体装置の製造方法 |
US8257504B2 (en) | 2009-06-05 | 2012-09-04 | Jsr Corporation | Surface treatment composition, surface treatment method, and method for manufacturing semiconductor device |
US10717899B2 (en) | 2013-03-19 | 2020-07-21 | Fujimi Incorporated | Polishing composition, method for producing polishing composition and polishing composition preparation kit |
WO2015141687A1 (ja) * | 2014-03-17 | 2015-09-24 | 日本キャボット・マイクロエレクトロニクス株式会社 | スラリー組成物および基板研磨方法 |
Also Published As
Publication number | Publication date |
---|---|
KR20080105169A (ko) | 2008-12-03 |
JPWO2007108215A1 (ja) | 2009-08-06 |
TWI343942B (en) | 2011-06-21 |
TW200801167A (en) | 2008-01-01 |
KR101067095B1 (ko) | 2011-09-22 |
US20100155654A1 (en) | 2010-06-24 |
US8147712B2 (en) | 2012-04-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2007108215A1 (ja) | 研磨用組成物 | |
JP4628423B2 (ja) | 基板の研磨及び製造方法 | |
EP2075824A1 (en) | Polishing composition | |
WO2007132933A1 (ja) | 研磨組成物の製造方法 | |
JP2005340755A (ja) | 研磨組成物および研磨方法 | |
JP2007235001A (ja) | 研磨用スラリー | |
JPWO2006112377A1 (ja) | 研磨材スラリーおよびこれを用いた研磨材 | |
JPWO2005109480A1 (ja) | 研磨用スラリー | |
JP2009070908A (ja) | 研磨用スラリー | |
JP2009070904A (ja) | 研磨用組成物 | |
JP2008016678A (ja) | 研磨用組成物 | |
JP4387908B2 (ja) | 研磨用組成物 | |
JP2007235005A (ja) | 半導体ウェハの研磨方法 | |
JP2007231209A (ja) | 研磨用組成物 | |
JP2004335689A (ja) | 銅研磨用スラリー | |
JP2008098525A (ja) | 研磨用組成物 | |
KR101610997B1 (ko) | 구리 연마용 cmp 슬러리 조성물 및 이를 이용한 연마 방법 | |
JP2008016677A (ja) | 研磨用スラリー | |
JP4801326B2 (ja) | 研磨用スラリー | |
JP2004168931A (ja) | 研磨材 | |
JP2004123950A (ja) | 研磨剤 | |
JP2005019481A (ja) | 研磨用スラリー | |
JP2001214155A (ja) | 電子機器材料用研磨剤組成物 | |
JP2004319715A (ja) | 研磨用スラリーおよびそれを用いる半導体ウェハの研磨方法 | |
JP2005167016A (ja) | 研磨用スラリー |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07736906 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2008506177 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12225374 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020087025488 Country of ref document: KR |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 07736906 Country of ref document: EP Kind code of ref document: A1 |