KR20180002022A - 레지스트 재료 및 패턴 형성 방법 - Google Patents
레지스트 재료 및 패턴 형성 방법 Download PDFInfo
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- KR20180002022A KR20180002022A KR1020170074896A KR20170074896A KR20180002022A KR 20180002022 A KR20180002022 A KR 20180002022A KR 1020170074896 A KR1020170074896 A KR 1020170074896A KR 20170074896 A KR20170074896 A KR 20170074896A KR 20180002022 A KR20180002022 A KR 20180002022A
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- South Korea
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000000203 mixture Substances 0.000 title claims description 29
- 230000008569 process Effects 0.000 title claims description 5
- 238000000059 patterning Methods 0.000 title description 3
- 239000002253 acid Substances 0.000 claims abstract description 74
- 239000000463 material Substances 0.000 claims abstract description 66
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229920005601 base polymer Polymers 0.000 claims abstract description 41
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical class I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229920002120 photoresistant polymer Polymers 0.000 claims abstract description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims description 126
- -1 hydroxycarbonyl group Chemical group 0.000 claims description 54
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 34
- 125000004185 ester group Chemical group 0.000 claims description 32
- 125000004122 cyclic group Chemical group 0.000 claims description 30
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 30
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 23
- 125000001033 ether group Chemical group 0.000 claims description 23
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 claims description 22
- 229910052731 fluorine Inorganic materials 0.000 claims description 18
- 125000002947 alkylene group Chemical group 0.000 claims description 17
- 125000001153 fluoro group Chemical group F* 0.000 claims description 17
- 125000003545 alkoxy group Chemical group 0.000 claims description 16
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 16
- 125000006165 cyclic alkyl group Chemical group 0.000 claims description 16
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 15
- 150000002500 ions Chemical class 0.000 claims description 15
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 15
- 125000003118 aryl group Chemical group 0.000 claims description 14
- 125000005843 halogen group Chemical group 0.000 claims description 14
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 13
- 125000004423 acyloxy group Chemical group 0.000 claims description 12
- 125000003342 alkenyl group Chemical group 0.000 claims description 12
- 125000000217 alkyl group Chemical group 0.000 claims description 12
- 125000005647 linker group Chemical group 0.000 claims description 12
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 12
- 125000004043 oxo group Chemical group O=* 0.000 claims description 12
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical group [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 11
- 229910052740 iodine Inorganic materials 0.000 claims description 11
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 11
- 239000003960 organic solvent Substances 0.000 claims description 11
- 125000004434 sulfur atom Chemical group 0.000 claims description 11
- 125000002252 acyl group Chemical group 0.000 claims description 10
- 238000004090 dissolution Methods 0.000 claims description 10
- 229910052717 sulfur Inorganic materials 0.000 claims description 10
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 9
- 125000003368 amide group Chemical group 0.000 claims description 8
- 125000005160 aryl oxy alkyl group Chemical group 0.000 claims description 8
- 125000005587 carbonate group Chemical group 0.000 claims description 8
- 125000001174 sulfone group Chemical group 0.000 claims description 8
- 239000003431 cross linking reagent Substances 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 7
- 239000004094 surface-active agent Substances 0.000 claims description 7
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 125000004453 alkoxycarbonyl group Chemical group 0.000 claims description 6
- 125000000304 alkynyl group Chemical group 0.000 claims description 6
- 125000003277 amino group Chemical group 0.000 claims description 6
- 229910052801 chlorine Inorganic materials 0.000 claims description 6
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 6
- 239000003112 inhibitor Substances 0.000 claims description 6
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 6
- 125000002130 sulfonic acid ester group Chemical group 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 5
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- 125000004429 atom Chemical group 0.000 claims description 4
- 230000000269 nucleophilic effect Effects 0.000 claims description 4
- 125000004450 alkenylene group Chemical group 0.000 claims description 3
- 125000005278 alkyl sulfonyloxy group Chemical group 0.000 claims description 3
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 claims description 3
- 125000004957 naphthylene group Chemical group 0.000 claims description 3
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 claims description 3
- 125000004400 (C1-C12) alkyl group Chemical group 0.000 claims description 2
- 125000006710 (C2-C12) alkenyl group Chemical group 0.000 claims description 2
- 125000006711 (C2-C12) alkynyl group Chemical group 0.000 claims description 2
- 238000010894 electron beam technology Methods 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 125000000686 lactone group Chemical group 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 abstract description 14
- 0 CCc(cc(cc1)C(OC(*S(O)(=O)=O)C(F)(F)F)=O)c1N(C)C(*(C1)C1C(C)(C)C)O Chemical compound CCc(cc(cc1)C(OC(*S(O)(=O)=O)C(F)(F)F)=O)c1N(C)C(*(C1)C1C(C)(C)C)O 0.000 description 72
- 150000001875 compounds Chemical class 0.000 description 22
- 229920000642 polymer Polymers 0.000 description 18
- 125000001231 benzoyloxy group Chemical group C(C1=CC=CC=C1)(=O)O* 0.000 description 15
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 13
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- 238000009792 diffusion process Methods 0.000 description 12
- UQSQSQZYBQSBJZ-UHFFFAOYSA-N fluorosulfonic acid Chemical compound OS(F)(=O)=O UQSQSQZYBQSBJZ-UHFFFAOYSA-N 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 10
- 150000002596 lactones Chemical group 0.000 description 10
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 9
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 description 9
- 239000000178 monomer Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 238000011161 development Methods 0.000 description 8
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- 239000003513 alkali Substances 0.000 description 7
- 238000006116 polymerization reaction Methods 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 6
- 239000011630 iodine Substances 0.000 description 6
- 238000005342 ion exchange Methods 0.000 description 6
- RPUSRLKKXPQSGP-UHFFFAOYSA-N methyl 3-phenylpropanoate Chemical compound COC(=O)CCC1=CC=CC=C1 RPUSRLKKXPQSGP-UHFFFAOYSA-N 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 150000003460 sulfonic acids Chemical class 0.000 description 6
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 6
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- WPCXDBCEDWUSOU-UHFFFAOYSA-N benzoyl iodide Chemical group IC(=O)C1=CC=CC=C1 WPCXDBCEDWUSOU-UHFFFAOYSA-N 0.000 description 5
- 229940116333 ethyl lactate Drugs 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- VDZOOKBUILJEDG-UHFFFAOYSA-M tetrabutylammonium hydroxide Chemical compound [OH-].CCCC[N+](CCCC)(CCCC)CCCC VDZOOKBUILJEDG-UHFFFAOYSA-M 0.000 description 5
- FRDAATYAJDYRNW-UHFFFAOYSA-N 3-methyl-3-pentanol Chemical compound CCC(C)(O)CC FRDAATYAJDYRNW-UHFFFAOYSA-N 0.000 description 4
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 4
- 229920000877 Melamine resin Polymers 0.000 description 4
- 150000001336 alkenes Chemical class 0.000 description 4
- GBGBCPSGWNTKEK-UHFFFAOYSA-N c(cc1)ccc1S(c1ccccc1)c1ccccc1 Chemical compound c(cc1)ccc1S(c1ccccc1)c1ccccc1 GBGBCPSGWNTKEK-UHFFFAOYSA-N 0.000 description 4
- 239000004202 carbamide Substances 0.000 description 4
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- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 4
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- 238000006460 hydrolysis reaction Methods 0.000 description 4
- 238000001459 lithography Methods 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 3
- XMDHFACJUDGSLF-UHFFFAOYSA-N 2-naphthalen-1-ylethenol Chemical compound C1=CC=C2C(C=CO)=CC=CC2=C1 XMDHFACJUDGSLF-UHFFFAOYSA-N 0.000 description 3
- XLLXMBCBJGATSP-UHFFFAOYSA-N 2-phenylethenol Chemical compound OC=CC1=CC=CC=C1 XLLXMBCBJGATSP-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 3
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- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
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- JESXATFQYMPTNL-UHFFFAOYSA-N mono-hydroxyphenyl-ethylene Natural products OC1=CC=CC=C1C=C JESXATFQYMPTNL-UHFFFAOYSA-N 0.000 description 3
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- WLOQLWBIJZDHET-UHFFFAOYSA-N triphenylsulfonium Chemical compound C1=CC=CC=C1[S+](C=1C=CC=CC=1)C1=CC=CC=C1 WLOQLWBIJZDHET-UHFFFAOYSA-N 0.000 description 3
- 239000012953 triphenylsulfonium Substances 0.000 description 3
- BYEAHWXPCBROCE-UHFFFAOYSA-N 1,1,1,3,3,3-hexafluoropropan-2-ol Chemical group FC(F)(F)C(O)C(F)(F)F BYEAHWXPCBROCE-UHFFFAOYSA-N 0.000 description 2
- AKTDWFLTNDPLCH-UHFFFAOYSA-N 1,1,3,3-tetrakis(hydroxymethyl)urea Chemical compound OCN(CO)C(=O)N(CO)CO AKTDWFLTNDPLCH-UHFFFAOYSA-N 0.000 description 2
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- 239000004593 Epoxy Substances 0.000 description 2
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- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 2
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- 238000011156 evaluation Methods 0.000 description 2
- 230000005251 gamma ray Effects 0.000 description 2
- CATSNJVOTSVZJV-UHFFFAOYSA-N heptan-2-one Chemical compound CCCCCC(C)=O CATSNJVOTSVZJV-UHFFFAOYSA-N 0.000 description 2
- NGAZZOYFWWSOGK-UHFFFAOYSA-N heptan-3-one Chemical compound CCCCC(=O)CC NGAZZOYFWWSOGK-UHFFFAOYSA-N 0.000 description 2
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
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- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 2
- 239000012948 isocyanate Substances 0.000 description 2
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Classifications
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Abstract
[해결수단] 베이스 폴리머 및 하기 식(A-1)으로 표시되는 술포늄염 또는 하기 식(A-2)으로 표시되는 요오도늄염을 포함하는 산발생제를 포함하는 레지스트 재료.
Description
Claims (15)
- 베이스 폴리머, 및 하기 식(A-1)으로 표시되는 술포늄염 또는 하기 식(A-2)으로 표시되는 요오도늄염을 포함하는 산발생제를 포함하는 레지스트 재료:
(식에서, R1은 수소 원자, 히드록시기, 카르복시기, 니트로기, 시아노기, 불소 원자, 염소 원자, 브롬 원자, 아미노기, 혹은 불소 원자, 염소 원자, 브롬 원자, 히드록시기, 아미노기 혹은 알콕시기를 포함하고 있어도 좋은, 직쇄상, 분기상 혹은 환상의, 탄소수 1∼20의 알킬기, 탄소수 1∼20의 알콕시기, 탄소수 2∼20의 알콕시카르보닐기, 탄소수 2∼20의 아실옥시기 혹은 탄소수 1∼4의 알킬술포닐옥시기, 또는 -NR7-C(=O)-R8 혹은 -NR7-C(=O)-O-R8이고, R7은 수소 원자, 또는 할로겐 원자, 히드록시기, 알콕시기, 아실기 혹은 아실옥시기를 포함하고 있어도 좋은 직쇄상, 분기상 혹은 환상의 탄소수 1∼6의 알킬기이고, R8은 직쇄상, 분기상 혹은 환상의 탄소수 1∼16의 알킬기 혹은 탄소수 2∼16의 알케닐기, 또는 탄소수 6∼12의 아릴기이고, 할로겐 원자, 히드록시기, 알콕시기, 아실기 또는 아실옥시기를 포함하고 있어도 좋다. X1은 p가 1일 때는 단결합 또는 탄소수 1∼20의 2가의 연결기이고, p가 2 또는 3일 때는 탄소수 1∼20의 3가 또는 4가의 연결기이며, 이 연결기는 산소 원자, 황 원자 또는 질소 원자를 포함하고 있어도 좋다. Rf1∼Rf4는 각각 독립적으로 수소 원자, 불소 원자 또는 트리플루오로메틸기인데, 이들 중 적어도 하나는 불소 원자 또는 트리플루오로메틸기이다. 또한, Rf1과 Rf2가 합쳐져 카르보닐기를 형성하여도 좋다. R2, R3, R4, R5 및 R6은 각각 독립적으로 옥소기로 치환되어 있어도 좋은 직쇄상, 분기상 혹은 환상의 탄소수 1∼12의 알킬기, 옥소기로 치환되어 있어도 좋은 직쇄상, 분기상 혹은 환상의 탄소수 2∼12의 알케닐기, 직쇄상, 분기상 혹은 환상의 탄소수 2∼12의 알키닐기, 탄소수 6∼20의 아릴기, 또는 탄소수 7∼12의 아랄킬기 혹은 아릴옥시알킬기이고, 이들 기의 수소 원자의 일부 또는 전부가, 히드록시기, 카르복시기, 할로겐 원자, 시아노기, 아미드기, 니트로기, 술톤기, 술폰기 또는 술포늄염 함유 기로 치환되어 있어도 좋고, 이들 기의 탄소 원자 사이에 에테르기, 에스테르기, 카르보닐기, 카르보네이트기 또는 술폰산에스테르기가 개재하고 있어도 좋다. 또한, R2와 R3이 결합하여, 이들이 결합하는 황 원자와 함께 고리를 형성하여도 좋다. m은 1∼5의 정수이다. n은 0∼3의 정수이다. p는 1∼3의 정수이다.) - 제1항에 있어서, 추가로 유기 용제를 포함하는 레지스트 재료.
- 제1항에 있어서, 상기 베이스 폴리머가, 하기 식(a1)으로 표시되는 반복 단위 또는 하기 식(a2)으로 표시되는 반복 단위를 포함하는 것인 레지스트 재료:
(식에서, RA는 각각 독립적으로 수소 원자 또는 메틸기이다. Y1은 단결합, 에스테르기 혹은 락톤환을 포함하는 탄소수 1∼12의 연결기, 페닐렌기, 또는 나프틸렌기이다. Y2는 단결합 또는 에스테르기이다. R11 및 R12는 산불안정기이다. R13은 불소 원자, 트리플루오로메틸기, 시아노기, 직쇄상, 분기상 혹은 환상의, 탄소수 1∼6의 알킬기 혹은 알콕시기, 또는 직쇄상, 분기상 혹은 환상의, 탄소수 2∼7의 아실기, 아실옥시기 혹은 알콕시카르보닐기이다. R14는 단결합, 또는 직쇄상 혹은 분기상의 탄소수 1∼6의 알킬렌기이고, 그 탄소 원자의 일부가 에테르기 또는 에스테르기로 치환되어 있어도 좋다. q는 1 또는 2를 나타낸다. r은 0∼4의 정수를 나타낸다.) - 제3항에 있어서, 추가로 용해저지제를 포함하는 레지스트 재료.
- 제3항에 있어서, 화학 증폭 포지티브형 레지스트 재료인 레지스트 재료.
- 제1항에 있어서, 상기 베이스 폴리머가 산불안정기를 포함하지 않는 것인 레지스트 재료.
- 제6항에 있어서, 추가로 가교제를 포함하는 레지스트 재료.
- 제6항에 있어서, 화학 증폭 네거티브형 레지스트 재료인 레지스트 재료.
- 제1항에 있어서, 추가로 계면활성제를 포함하는 레지스트 재료.
- 제1항에 있어서, 상기 베이스 폴리머가, 추가로 하기 식(f1)∼식(f3)으로 표시되는 반복 단위에서 선택되는 적어도 1종을 포함하는 레지스트 재료:
(식에서, RA는 각각 독립적으로 수소 원자 또는 메틸기이다. R31은 단결합, 페닐렌기, -O-R41- 또는 -C(=O)-Y1-R41-이고, Y1은 -O- 또는 -NH-이고, R41은 직쇄상, 분기상 혹은 환상의, 탄소수 1∼6의 알킬렌기 혹은 탄소수 2∼6의 알케닐렌기, 또는 페닐렌기이고, 카르보닐기, 에스테르기, 에테르기 또는 히드록시기를 포함하고 있어도 좋다. R32∼R39는 각각 독립적으로 카르보닐기, 에스테르기 혹은 에테르기를 포함하고 있어도 좋은 직쇄상, 분기상 혹은 환상의 탄소수 1∼12의 알킬기, 탄소수 6∼12의 아릴기, 탄소수 7∼20의 아랄킬기, 또는 머캅토페닐기를 나타낸다. Z1은 단결합, -Z11-C(=O)-O-, -Z11-O- 또는 -Z11-O-C(=O)-이고, Z11은 직쇄상, 분기상 또는 환상의 탄소수 1∼12의 알킬렌기이고, 카르보닐기, 에스테르기 또는 에테르기를 포함하고 있어도 좋다. A는 수소 원자 또는 트리플루오로메틸기이다. Z2는 단결합, 메틸렌기, 에틸렌기, 페닐렌기, 불소화페닐렌기, -O-R42- 또는 -C(=O)-Z12-R42-이고, Z12는 -O- 또는 -NH-이고, R42는 직쇄상, 분기상 혹은 환상의 탄소수 1∼6의 알킬렌기, 페닐렌기, 불소화페닐렌기, 트리플루오로메틸기로 치환된 페닐렌기, 또는 직쇄상, 분기상 혹은 환상의 탄소수 2∼6의 알케닐렌기이고, 카르보닐기, 에스테르기, 에테르기 또는 히드록시기를 포함하고 있어도 좋다. M-는 비구핵성 카운터 이온을 나타낸다.) - 제1항에 기재한 레지스트 재료를 기판 상에 도포하고, 가열 처리를 하여 레지스트막을 형성하는 공정과, 상기 레지스트막을 고에너지선으로 노광하는 공정과, 현상액을 이용하여 노광한 레지스트막을 현상하는 공정을 포함하는 패턴 형성 방법.
- 제11항에 있어서, 상기 고에너지선이 파장 193 nm의 ArF 엑시머 레이저 또는 파장 248 nm의 KrF 엑시머 레이저인 패턴 형성 방법.
- 제11항에 있어서, 상기 고에너지선이 전자선 또는 파장 3∼15 nm의 극단자외선인 패턴 형성 방법.
- 하기 식(A-1-1)으로 표시되는 술포늄염:
(식에서, X2는 단결합, 또는 탄소수 1∼6의 직쇄상 혹은 분기상의 알킬렌기이다. R2, R3 및 R4는 각각 독립적으로 옥소기로 치환되어 있어도 좋은 직쇄상, 분기상 혹은 환상의 탄소수 1∼12의 알킬기, 옥소기로 치환되어 있어도 좋은 직쇄상, 분기상 혹은 환상의 탄소수 2∼12의 알케닐기, 직쇄상, 분기상 혹은 환상의 탄소수 2∼12의 알키닐기, 탄소수 6∼20의 아릴기, 또는 탄소수 7∼12의 아랄킬기 혹은 아릴옥시알킬기이고, 이들 기의 수소 원자의 일부 또는 전부가 히드록시기, 카르복시기, 할로겐 원자, 시아노기, 아미드기, 니트로기, 술톤기, 술폰기 또는 술포늄염 함유 기로 치환되어 있어도 좋고, 이들 기의 탄소 원자 사이에 에테르기, 에스테르기, 카르보닐기, 카르보네이트기 또는 술폰산에스테르기가 개재하고 있어도 좋다. 또한, R2와 R3이 결합하여, 이들이 결합하는 황 원자와 함께 고리를 형성하여도 좋다. X는 요오드 원자 또는 히드록시기이다.) - 하기 식(A-2-1)으로 표시되는 요오도늄염:
(식에서, X2는 단결합, 또는 탄소수 1∼6의 직쇄상 혹은 분기상의 알킬렌기이다. R5 및 R6은 각각 독립적으로 옥소기로 치환되어 있어도 좋은 직쇄상, 분기상 혹은 환상의 탄소수 1∼12의 알킬기, 옥소기로 치환되어 있어도 좋은 직쇄상, 분기상 혹은 환상의 탄소수 2∼12의 알케닐기, 직쇄상, 분기상 혹은 환상의 탄소수 2∼12의 알키닐기, 탄소수 6∼20의 아릴기, 또는 탄소수 7∼12의 아랄킬기 혹은 아릴옥시알킬기이고, 이들 기의 수소 원자의 일부 또는 전부가 히드록시기, 카르복시기, 할로겐 원자, 시아노기, 아미드기, 니트로기, 술톤기, 술폰기 또는 술포늄염 함유 기로 치환되어 있어도 좋고, 이들 기의 탄소 원자 사이에 에테르기, 에스테르기, 카르보닐기, 카르보네이트기 또는 술폰산에스테르기가 개재하고 있어도 좋다. X는 요오드 원자 또는 히드록시기이다.)
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US10323113B2 (en) | 2019-06-18 |
JP2018005224A (ja) | 2018-01-11 |
US20170369616A1 (en) | 2017-12-28 |
JP6720926B2 (ja) | 2020-07-08 |
TWI635073B (zh) | 2018-09-11 |
CN107544206B (zh) | 2020-11-03 |
CN107544206A (zh) | 2018-01-05 |
KR101960596B1 (ko) | 2019-07-15 |
TW201805269A (zh) | 2018-02-16 |
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