JP6623942B2 - 半導体表面処理用組成物、表面処理方法および半導体装置の製造方法 - Google Patents
半導体表面処理用組成物、表面処理方法および半導体装置の製造方法 Download PDFInfo
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- JP6623942B2 JP6623942B2 JP2016116981A JP2016116981A JP6623942B2 JP 6623942 B2 JP6623942 B2 JP 6623942B2 JP 2016116981 A JP2016116981 A JP 2016116981A JP 2016116981 A JP2016116981 A JP 2016116981A JP 6623942 B2 JP6623942 B2 JP 6623942B2
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- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- QLBRROYTTDFLDX-UHFFFAOYSA-N [3-(aminomethyl)cyclohexyl]methanamine Chemical compound NCC1CCCC(CN)C1 QLBRROYTTDFLDX-UHFFFAOYSA-N 0.000 description 1
- GDFCWFBWQUEQIJ-UHFFFAOYSA-N [B].[P] Chemical compound [B].[P] GDFCWFBWQUEQIJ-UHFFFAOYSA-N 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- 125000004018 acid anhydride group Chemical group 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 230000004931 aggregating effect Effects 0.000 description 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 150000008051 alkyl sulfates Chemical class 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 1
- DTOSIQBPPRVQHS-PDBXOOCHSA-N alpha-linolenic acid Chemical compound CC\C=C/C\C=C/C\C=C/CCCCCCCC(O)=O DTOSIQBPPRVQHS-PDBXOOCHSA-N 0.000 description 1
- 235000020661 alpha-linolenic acid Nutrition 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- OYTKINVCDFNREN-UHFFFAOYSA-N amifampridine Chemical compound NC1=CC=NC=C1N OYTKINVCDFNREN-UHFFFAOYSA-N 0.000 description 1
- 229960004012 amifampridine Drugs 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- HOPRXXXSABQWAV-UHFFFAOYSA-N anhydrous collidine Natural products CC1=CC=NC(C)=C1C HOPRXXXSABQWAV-UHFFFAOYSA-N 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- 159000000032 aromatic acids Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 150000008378 aryl ethers Chemical class 0.000 description 1
- 229940116226 behenic acid Drugs 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229940092714 benzenesulfonic acid Drugs 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000005380 borophosphosilicate glass Substances 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 239000001191 butyl (2R)-2-hydroxypropanoate Substances 0.000 description 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- BTMVHUNTONAYDX-UHFFFAOYSA-N butyl propionate Chemical compound CCCCOC(=O)CC BTMVHUNTONAYDX-UHFFFAOYSA-N 0.000 description 1
- HUCVOHYBFXVBRW-UHFFFAOYSA-M caesium hydroxide Inorganic materials [OH-].[Cs+] HUCVOHYBFXVBRW-UHFFFAOYSA-M 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- UTBIMNXEDGNJFE-UHFFFAOYSA-N collidine Natural products CC1=CC=C(C)C(C)=N1 UTBIMNXEDGNJFE-UHFFFAOYSA-N 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- VKIRRGRTJUUZHS-UHFFFAOYSA-N cyclohexane-1,4-diamine Chemical compound NC1CCC(N)CC1 VKIRRGRTJUUZHS-UHFFFAOYSA-N 0.000 description 1
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011118 depth filtration Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- WYACBZDAHNBPPB-UHFFFAOYSA-N diethyl oxalate Chemical compound CCOC(=O)C(=O)OCC WYACBZDAHNBPPB-UHFFFAOYSA-N 0.000 description 1
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 1
- 229940019778 diethylene glycol diethyl ether Drugs 0.000 description 1
- XXJWXESWEXIICW-UHFFFAOYSA-N diethylene glycol monoethyl ether Chemical compound CCOCCOCCO XXJWXESWEXIICW-UHFFFAOYSA-N 0.000 description 1
- 229940075557 diethylene glycol monoethyl ether Drugs 0.000 description 1
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 description 1
- HPYNZHMRTTWQTB-UHFFFAOYSA-N dimethylpyridine Natural products CC1=CC=CN=C1C HPYNZHMRTTWQTB-UHFFFAOYSA-N 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- WEHWNAOGRSTTBQ-UHFFFAOYSA-N dipropylamine Chemical compound CCCNCCC WEHWNAOGRSTTBQ-UHFFFAOYSA-N 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- MOTZDAYCYVMXPC-UHFFFAOYSA-N dodecyl hydrogen sulfate Chemical compound CCCCCCCCCCCCOS(O)(=O)=O MOTZDAYCYVMXPC-UHFFFAOYSA-N 0.000 description 1
- 229940043264 dodecyl sulfate Drugs 0.000 description 1
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 description 1
- ODQWQRRAPPTVAG-GZTJUZNOSA-N doxepin Chemical compound C1OC2=CC=CC=C2C(=C/CCN(C)C)/C2=CC=CC=C21 ODQWQRRAPPTVAG-GZTJUZNOSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- BHXIWUJLHYHGSJ-UHFFFAOYSA-N ethyl 3-ethoxypropanoate Chemical compound CCOCCC(=O)OCC BHXIWUJLHYHGSJ-UHFFFAOYSA-N 0.000 description 1
- IJUHLFUALMUWOM-UHFFFAOYSA-N ethyl 3-methoxypropanoate Chemical compound CCOC(=O)CCOC IJUHLFUALMUWOM-UHFFFAOYSA-N 0.000 description 1
- 229940117360 ethyl pyruvate Drugs 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- ACCCMOQWYVYDOT-UHFFFAOYSA-N hexane-1,1-diol Chemical compound CCCCCC(O)O ACCCMOQWYVYDOT-UHFFFAOYSA-N 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- GJRQTCIYDGXPES-UHFFFAOYSA-N iso-butyl acetate Natural products CC(C)COC(C)=O GJRQTCIYDGXPES-UHFFFAOYSA-N 0.000 description 1
- 229940117955 isoamyl acetate Drugs 0.000 description 1
- VFTGLSWXJMRZNB-UHFFFAOYSA-N isoamyl isobutyrate Chemical compound CC(C)CCOC(=O)C(C)C VFTGLSWXJMRZNB-UHFFFAOYSA-N 0.000 description 1
- FGKJLKRYENPLQH-UHFFFAOYSA-M isocaproate Chemical compound CC(C)CCC([O-])=O FGKJLKRYENPLQH-UHFFFAOYSA-M 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- JMMWKPVZQRWMSS-UHFFFAOYSA-N isopropanol acetate Natural products CC(C)OC(C)=O JMMWKPVZQRWMSS-UHFFFAOYSA-N 0.000 description 1
- 229940011051 isopropyl acetate Drugs 0.000 description 1
- JJWLVOIRVHMVIS-UHFFFAOYSA-N isopropylamine Chemical compound CC(C)N JJWLVOIRVHMVIS-UHFFFAOYSA-N 0.000 description 1
- GWYFCOCPABKNJV-UHFFFAOYSA-N isovaleric acid Chemical compound CC(C)CC(O)=O GWYFCOCPABKNJV-UHFFFAOYSA-N 0.000 description 1
- OQAGVSWESNCJJT-UHFFFAOYSA-N isovaleric acid methyl ester Natural products COC(=O)CC(C)C OQAGVSWESNCJJT-UHFFFAOYSA-N 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 238000007561 laser diffraction method Methods 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 229960004488 linolenic acid Drugs 0.000 description 1
- KQQKGWQCNNTQJW-UHFFFAOYSA-N linolenic acid Natural products CC=CCCC=CCC=CCCCCCCCC(O)=O KQQKGWQCNNTQJW-UHFFFAOYSA-N 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
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229920003145 methacrylic acid copolymer Polymers 0.000 description 1
- 229940117841 methacrylic acid copolymer Drugs 0.000 description 1
- HSDFKDZBJMDHFF-UHFFFAOYSA-N methyl 3-ethoxypropanoate Chemical compound CCOCCC(=O)OC HSDFKDZBJMDHFF-UHFFFAOYSA-N 0.000 description 1
- 229940057867 methyl lactate Drugs 0.000 description 1
- CWKLZLBVOJRSOM-UHFFFAOYSA-N methyl pyruvate Chemical compound COC(=O)C(C)=O CWKLZLBVOJRSOM-UHFFFAOYSA-N 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- KQSABULTKYLFEV-UHFFFAOYSA-N naphthalene-1,5-diamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1N KQSABULTKYLFEV-UHFFFAOYSA-N 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- IOQPZZOEVPZRBK-UHFFFAOYSA-N octan-1-amine Chemical compound CCCCCCCCN IOQPZZOEVPZRBK-UHFFFAOYSA-N 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 229920002114 octoxynol-9 Polymers 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011146 organic particle Substances 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- UWJJYHHHVWZFEP-UHFFFAOYSA-N pentane-1,1-diol Chemical compound CCCCC(O)O UWJJYHHHVWZFEP-UHFFFAOYSA-N 0.000 description 1
- DGTNSSLYPYDJGL-UHFFFAOYSA-N phenyl isocyanate Chemical compound O=C=NC1=CC=CC=C1 DGTNSSLYPYDJGL-UHFFFAOYSA-N 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000259 polyoxyethylene lauryl ether Polymers 0.000 description 1
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 description 1
- 235000010486 polyoxyethylene sorbitan monolaurate Nutrition 0.000 description 1
- 239000000249 polyoxyethylene sorbitan monopalmitate Substances 0.000 description 1
- 235000010483 polyoxyethylene sorbitan monopalmitate Nutrition 0.000 description 1
- 239000001818 polyoxyethylene sorbitan monostearate Substances 0.000 description 1
- 235000010989 polyoxyethylene sorbitan monostearate Nutrition 0.000 description 1
- 229920002451 polyvinyl alcohol 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
- 239000011148 porous material Substances 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- WYVAMUWZEOHJOQ-UHFFFAOYSA-N propionic anhydride Chemical compound CCC(=O)OC(=O)CC WYVAMUWZEOHJOQ-UHFFFAOYSA-N 0.000 description 1
- ILVGAIQLOCKNQA-UHFFFAOYSA-N propyl 2-hydroxypropanoate Chemical compound CCCOC(=O)C(C)O ILVGAIQLOCKNQA-UHFFFAOYSA-N 0.000 description 1
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- VHNQIURBCCNWDN-UHFFFAOYSA-N pyridine-2,6-diamine Chemical compound NC1=CC=CC(N)=N1 VHNQIURBCCNWDN-UHFFFAOYSA-N 0.000 description 1
- YAAWASYJIRZXSZ-UHFFFAOYSA-N pyrimidine-2,4-diamine Chemical compound NC1=CC=NC(N)=N1 YAAWASYJIRZXSZ-UHFFFAOYSA-N 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 239000011163 secondary particle Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229940100515 sorbitan Drugs 0.000 description 1
- 229940035044 sorbitan monolaurate Drugs 0.000 description 1
- 239000001570 sorbitan monopalmitate Substances 0.000 description 1
- 235000011071 sorbitan monopalmitate Nutrition 0.000 description 1
- 229940031953 sorbitan monopalmitate Drugs 0.000 description 1
- 239000001587 sorbitan monostearate Substances 0.000 description 1
- 235000011076 sorbitan monostearate Nutrition 0.000 description 1
- 229940035048 sorbitan monostearate Drugs 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- GFYHSKONPJXCDE-UHFFFAOYSA-N sym-collidine Natural products CC1=CN=C(C)C(C)=C1 GFYHSKONPJXCDE-UHFFFAOYSA-N 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 238000002230 thermal chemical vapour deposition Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- RKBCYCFRFCNLTO-UHFFFAOYSA-N triisopropylamine Chemical compound CC(C)N(C(C)C)C(C)C RKBCYCFRFCNLTO-UHFFFAOYSA-N 0.000 description 1
- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 150000003739 xylenols Chemical class 0.000 description 1
Landscapes
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Cleaning Or Drying Semiconductors (AREA)
Description
ポリアミック酸、ポリアミック酸誘導体およびそれらの塩よりなる群から選択される少なくとも1種の重合体(A)と、
液状媒体(B)と、を含有する。
適用例1の半導体表面処理用組成物がカリウムおよびナトリウムを含有し、
前記カリウムの含有量をMK(ppm)、前記ナトリウムの含有量をMNa(ppm)としたときに、MK/MNa=5×103〜1×105であることができる。
適用例1または適用例2の半導体表面処理用組成物は、
粒子径が0.1〜0.3μmの粒子を3×101〜1.5×103個/mL含有することができる。
本発明に係る化学機械研磨用組成物は、
適用例1ないし適用例3のいずれか一例の半導体表面処理用組成物と、
砥粒を含有する。
本発明に係る半導体表面を洗浄する方法の一態様は、
適用例1ないし適用例3のいずれか一例に記載の半導体表面処理用組成物を用いることができる。
本発明に係る半導体表面を研磨する方法の一態様は、
適用例4に記載の化学機械研磨用組成物を用いることができる。
1. 半導体表面処理用組成物
本発明の半導体表面処理用組成物は、
ポリアミック酸、ポリアミック酸誘導体およびそれらの塩よりなる群から選択される少なくとも1種の重合体(A)と、
液状媒体(B)と、を含有する。
1.1. 重合体(A)
本発明の半導体表面処理用組成物に含有される重合体(A)は、ポリアミック酸、ポリアミック酸誘導体およびそれらの塩よりなる群から選択される少なくとも1種の重合体である。
脂環式ジアミンとして、例えば1,4−ジアミノシクロヘキサン、4,4’−メチレンビス(シクロヘキシルアミン)、1,3−ビス(アミノメチル)シクロヘキサンなどを;
芳香族ジアミンとして、例えばp−フェニレンジアミン、4,4’−ジアミノジフェニルメタン、4,4’−ジアミノジフェニルスルフィド、1,5−ジアミノナフタレン、2,2’−ジメチル−4,4’−ジアミノビフェニル、4,4’−ジアミノ−2,2’−ビス(トリフルオロメチル)ビフェニル、2,7−ジアミノフルオレン、4,4’−ジアミノジフェニルエーテル、2,2−ビス[4−(4−アミノフェノキシ)フェニル]プロパン、9,9−ビス(4−アミノフェニル)フルオレン、2,2−ビス[4−(4−アミノフェノキシ)フェニル]ヘキサフルオロプロパン、2,2−ビス(4−アミノフェニル)ヘキサフルオロプロパン、4,4’−(p−フェニレンジイソプロピリデン)ビスアニリン、4,4’−(m−フェニレンジイソプロピリデン)ビスアニリン、1,4−ビス(4−アミノフェノキシ)ベンゼン、4,4’−ビス(4−アミノフェノキシ)ビフェニル、2,6−ジアミノピリジン、3,4−ジアミノピリジン、2,4−ジアミノピリミジン、3,6−ジアミノアクリジン、3,6−ジアミノカルバゾール、N−メチル−3,6−ジアミノカルバゾール、N−エチル−3,6−ジアミノカルバゾール、N−フェニル−3,6−ジアミノカルバゾール、N,N’−ビス(4−アミノフェニル)−ベンジジン、N,N’−ビス(4−アミノフェニル)−N,N’−ジメチルベンジジン、1,4−ビス−(4−アミノフェニル)−ピペラジン、3,5−ジアミノ安息香酸などを;
ジアミノオルガノシロキサンとして、例えば1,3−ビス(3−アミノプロピル)−テトラメチルジシロキサンなどを、それぞれ挙げることができるほか、特許文献4(特開2010−97188号公報)に記載のジアミンを用いることができる。
モノアミン化合物として、例えばアニリン、シクロヘキシルアミン、n−ブチルアミン、n−ペンチルアミン、n−ヘキシルアミン、n−ヘプチルアミン、n−オクチルアミンなどを;
モノイソシアネート化合物として、例えばフェニルイソシアネート、ナフチルイソシアネートなどを、それぞれ挙げることができる。
上記フェノール誘導体として、例えばm−クレゾール、キシレノール、ハロゲン化フェノールなどを;
上記アルコールとして、例えばメタノール、エタノール、イソプロパノール、シクロヘキサノール、エチレングリコール、プロピレングリコール、1,4−ブタンジオール、トリエチレングリコール、エチレングリコールモノメチルエーテルなどを;
上記ケトンとして、例えばアセトン、メチルエチルケトン、メチルイソブチルケトン、シクロヘキサノンなどを;
上記エーテルとして、例えばエチレングリコールメチルエーテル、エチレングリコールエチルエーテル、エチレングリコール−n−プロピルエーテル、エチレングリコール−i−プロピルエーテル、エチレングリコール−モノ−n−ブチルエーテル、エチレングリコール−ジ−n−ブチルエーテル、エチレングリコールジメチルエーテル、エチレングリコールエチルエーテルアセテート、ジエチレングリコールジメチルエーテル、ジエチレングリコールジエチルエーテル、ジエチレングリコールモノメチルエーテル、ジエチレングリコールモノエチルエーテル、ジエチレングリコールモノメチルエーテルアセテート、ジエチレングリコールモノエチルエーテルアセテート、テトラヒドロフランなどを、それぞれ挙げることができる。
上記エステルとして、例えば乳酸エチル、乳酸ブチル、酢酸メチル、酢酸エチル、酢酸ブチル、メチルメトキシプロピオネ−ト、エチルエトキシプロピオネ−ト、イソアミルプロピオネート、イソアミルイソブチレート、シュウ酸ジエチル、マロン酸ジエチルなどを;
上記炭化水素として、例えばヘキサン、ヘプタン、オクタン、ベンゼン、トルエン、キシレンなどを、それぞれ挙げることができる。
1.2. 液状媒体(B)
本発明の半導体表面処理用組成物は、液状媒体(B)を含有する。液状媒体(B)としては、1気圧下における沸点が50〜300℃であることが好ましい。このような沸点の液状媒体は、表面処理後、スピンドライまたは加熱により除去しやすい。
1.3. その他の成分
本発明の半導体表面処理用組成物は、前記重合体(A)、前記液状媒体(B)以外に、その他の成分を含有させることができる。その他の成分としては、研磨粒子、表面活性剤、水溶性(共)重合体(塩)、界面活性剤及びpH調整剤等が挙げられる。これらは1種単独で用いてもよく2種以上を併用してもよい。
本実施形態に係る半導体表面処理用組成物の調製方法は、特に制限されず、公知の方法を使用することができる。
本発明の表面処理方法は、前記半導体表面処理用組成物を半導体基板の金属配線を含む面に接触させ、半導体基板の金属配線を含む面を処理することを特徴としている。以下、本実施形態に係る洗浄方法の一具体例について、図面を用いながら詳細に説明する。
図2は、本実施形態に係る半導体表面処理方法に用いられる配線基板の作製プロセスを模式的に示す断面図である。かかる配線基板は、以下のプロセスを経ることにより形成される。
次いで、図2(B)に示す配線基板200の表面(被洗浄面)を上述の半導体表面処理用組成物を用いて洗浄する。本実施形態に係る半導体表面処理方法によれば、CMP終了後の配線材料およびバリアメタル材料が表面に共存する配線基板を洗浄する際に、配線材料およびバリアメタル材料の腐食を抑制すると共に、配線基板上の酸化膜や有機残渣を効率的に除去することができる。本実施形態に係る半導体表面処理方法は、銅/コバルトおよび銅/窒化タンタルの腐食電位差を小さくできる半導体表面処理用組成物 を用いているので、配線材料として銅、バリアメタル材料としてコバルトおよび/または窒化タンタルが共存する配線基板について洗浄処理を行った際に、特に優れた効果を発揮する。
以下、本発明を実施例により説明するが、本発明はこれらの実施例により何ら限定されるものではない。なお、本実施例における「部」および「%」は、特に断らない限り質量基準である。
攪拌装置、温度計およびコンデンサーを備えた容量3Lのフラスコ内部を減圧した状態でヒートガンにて加熱して容器内部の残存水分を除去した後、乾燥窒素ガスを満たした。このフラスコに、溶媒として予め水素化カルシウムを用いた脱水蒸留法により脱水処理を施したN−メチル−2−ピロリドン(NMP)1,170g、テトラカルボン酸二無水物としてピロメリット酸二無水物54.53g(0.250モル)およびジアミンとして4,4’−ジアミノジフェニルエーテル50.06g(0.250モル)を仕込み、25℃において3時間攪拌下に反応を行うことにより、ポリアミック酸A1を10質量%含有するNMP溶液を得た。
4.2.1.半導体表面処理用組成物の調製
ポリエチレン製容器に、半導体表面処理用組成物として表2に示す濃度とpHになるように各成分と水酸化カリウムあるいはテトラメチルアンモニウムヒドロキシドを適時添加し、イオン交換水を適量入れ、15分間撹拌した。
4.2.2.1.化学機械研磨
評価用の8インチウエハ(Advance Materials Technology製、CVD法によりコバルト膜を200nm成膜)を、化学機械研磨装置「EPO112」(株式会社荏原製作所製)を用いて、下記の条件で化学機械研磨を実施した。
・化学機械研磨用水系分散体:JSR(株)製、「CMS8501/CMS8552」
・研磨パッド:ロデール・ニッタ(株)製、「IC1000/SUBA400」
・定盤回転数:70rpm
・ヘッド回転数:70rpm
・ヘッド荷重:250g/cm2
・化学機械研磨用水系分散体供給速度:200mL/分
・研磨時間:60秒
4.2.2.2.AFMによる腐食評価
上述の化学機械研磨処理を経た基板を切断して2x2cmの試験片を作成し、Bluker Corpoation製の走査型原子間力顕微鏡(AFM)であるDimension FastScanを用いてフレームサイズ10μmにて12か所、偏りなく観察し、12か所の算術平均粗さの平均値が0.1 nm以下の平坦な表面である事が確認できたウエハを欠陥評価に用いた。試験片を18℃に温調した本実施の形態にかかる半導体表面処理組成物に1時間浸漬した。浸漬後超純水で30秒リンスし、自然乾燥させた。乾燥後の試験片を走査型原子間力顕微鏡を用いてフレームサイズ10μmにて任意に3か所観察した。
上記で得られた研磨後の基板を切断して1x3cmの試験片を2つ作成し、中央の1x1cmの箇所を絶縁性テープで被覆した。その後、電気化学インピーダンス測定装置(Solartron社製Electrochemical interface(SI1287)およびFequency Response Analyzer(1252A))を用いて、2つの試験片をそれぞれ作用極、対極とし、本実施の形態にかかる半導体表面処理組成物を電解質とした2極セルを組み上げた。振幅5mV,周波数1500−0.07Hzの交流電圧を高周波から低周波にかけて印加し、抵抗値の実部と虚部の値を測定した。測定結果を縦軸に虚部、横軸に実部を取ることにより得られる半円状のプロットを交流インピーダンスの解析ソフト「Z veiw」により解析し、電荷移動抵抗(Ω)を算出した。
表2および表3に記載の組成に変更し、表2および表3の組成に調整した以外は実施例1と同様に半導体表面処理用組成物を作成し、評価を行った。結果を表2および表3に示す。
4.4.1.半導体表面処理用組成物の調製
4.4.2.研磨速度の測定
下記に示した評価用の8インチウエハを、化学機械研磨装置「EPO112」(株式会社荏原製作所製)を用いて、作成した化学機械研磨用組成物を用いて下記の条件で化学機械研磨を実施した。
・膜厚2,000オングストロームのコバルト膜が積層された8インチ熱酸化膜付きシリコン基板。
・膜厚2,000オングストロームの窒化チタン膜が積層された8インチ熱酸化膜付きシリコン基板。
・膜厚10,000オングストロームのPETEOS膜が積層された8インチシリコン基板。
・ヘッド回転数:70rpm
・ヘッド荷重:200gf/cm2
・テーブル回転数:70rpm
・化学機械研磨水系分散体の供給速度:200mL/分
・研磨時間:60秒
(3)研磨速度の算出方法
コバルト膜および窒化チタン膜については、電気伝導式膜厚測定器(KLAテンコール社製、形式「オムニマップRS75」)を用いて、研磨処理後の膜厚を測定し、化学機械研磨により減少した膜厚および研磨時間から研磨速度を算出した。
上記で得られた研磨後のコバルト基板を切断して2x2cmの試験片を作成し、18℃に温調された本実施の形態にかかる半導体表面処理用組成物に1時間浸漬した。浸漬後超純水で30秒リンスしながら、ニトリル製手袋を装着した手によって試験片表面をよく磨いた後自然乾燥させた。乾燥後の試験片を走査型原子間力顕微鏡(AFM、Bluker Corpoation製、装置名「Dimension FastScan」)を用いてフレームサイズ10μmにて任意に3か所観察した。
上記で得られた全ての研磨後の基板を切断して1x3cmの試験片を2つ作成し、中央の1x1cmの箇所を絶縁性テープで被覆した。その後、電気化学インピーダンス測定装置(Solartron社製Electrochemical interface(SI1287)およびFequency Response Analyzer(1252A))を用いて、2つの試験片をそれぞれ作用極、対極とし、本実施の形態にかかる半導体表面処理組成物を電解質とした2極セルを組み上げた。振幅5mV,周波数1500−0.07Hzの交流電圧を高周波から低周波にかけて印加し、抵抗値の実部と虚部の値を測定した。測定結果を縦軸に虚部、横軸に実部を取ることにより得られる半円状のプロットを交流インピーダンスの解析ソフト「Z veiw」により解析し、電荷移動抵抗(Ω)を算出した。
表4に記載の組成に変更し、表4の組成に調整した以外は実施例21と同様に半導体表面処理用組成物を作成し、評価を行った。評価結果を表4に示す。
10…基体、12…絶縁膜、14…バリアメタル膜、16…金属膜、20…配線用凹部、100…被処理体、200…配線基板
Claims (5)
- ポリアミック酸、ポリアミック酸誘導体およびそれらの塩よりなる群から選択される少なくとも1種の重合体(A)と、
液状媒体(B)と、
カリウムおよびナトリウムを含有し、
前記カリウムの含有量をM K (ppm)、前記ナトリウムの含有量をM Na (ppm)としたときに、M K /M Na =5×10 3 〜1×10 5 である、半導体表面処理用組成物。 - 粒子径が0.1〜0.3μmの粒子を3×101〜1.5×103個/mL含有する、請求項1に記載の半導体表面処理用組成物。
- 請求項1または2に記載の半導体表面処理用組成物と、
砥粒と、
を含有する、化学機械研磨用組成物。 - 請求項1または2に記載の半導体表面処理用組成物を用いて半導体表面を洗浄する方法。
- 請求項3に記載の化学機械研磨用組成物を用いて半導体表面を研磨する方法。
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