JP4355917B2 - 含窒素有機化合物、レジスト材料及びパターン形成方法 - Google Patents
含窒素有機化合物、レジスト材料及びパターン形成方法 Download PDFInfo
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- JP4355917B2 JP4355917B2 JP2003368421A JP2003368421A JP4355917B2 JP 4355917 B2 JP4355917 B2 JP 4355917B2 JP 2003368421 A JP2003368421 A JP 2003368421A JP 2003368421 A JP2003368421 A JP 2003368421A JP 4355917 B2 JP4355917 B2 JP 4355917B2
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- group
- nitrogen
- sulfonate
- bis
- resist material
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- -1 Nitrogen-containing organic compound Chemical class 0.000 title claims description 157
- 239000000463 material Substances 0.000 title claims description 54
- 238000000034 method Methods 0.000 title claims description 31
- 239000002253 acid Substances 0.000 claims description 42
- 229920005989 resin Polymers 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 17
- 239000000758 substrate Substances 0.000 claims description 16
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 15
- 125000004432 carbon atom Chemical group C* 0.000 claims description 13
- 239000003960 organic solvent Substances 0.000 claims description 10
- 239000003431 cross linking reagent Substances 0.000 claims description 9
- 125000006165 cyclic alkyl group Chemical group 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 8
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 8
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 8
- 238000010894 electron beam technology Methods 0.000 claims description 6
- 230000002378 acidificating effect Effects 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 238000004132 cross linking Methods 0.000 claims description 3
- 125000000524 functional group Chemical group 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 description 78
- 238000003786 synthesis reaction Methods 0.000 description 78
- 150000001412 amines Chemical class 0.000 description 24
- XTIGGAHUZJWQMD-UHFFFAOYSA-N 1-chloro-2-methoxyethane Chemical compound COCCCl XTIGGAHUZJWQMD-UHFFFAOYSA-N 0.000 description 21
- 239000002585 base Substances 0.000 description 20
- 150000001875 compounds Chemical class 0.000 description 19
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 19
- 238000006243 chemical reaction Methods 0.000 description 15
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 description 14
- KZJRKRQSDZGHEC-UHFFFAOYSA-N 2,2,2-trifluoro-1-phenylethanone Chemical compound FC(F)(F)C(=O)C1=CC=CC=C1 KZJRKRQSDZGHEC-UHFFFAOYSA-N 0.000 description 12
- 239000010408 film Substances 0.000 description 12
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 10
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- SRSXLGNVWSONIS-UHFFFAOYSA-M benzenesulfonate Chemical compound [O-]S(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-M 0.000 description 8
- 229940077388 benzenesulfonate Drugs 0.000 description 8
- 229920000642 polymer Polymers 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- LDZYRENCLPUXAX-UHFFFAOYSA-N 2-methyl-1h-benzimidazole Chemical compound C1=CC=C2NC(C)=NC2=C1 LDZYRENCLPUXAX-UHFFFAOYSA-N 0.000 description 6
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
- 229920005601 base polymer Polymers 0.000 description 6
- MIOPJNTWMNEORI-UHFFFAOYSA-N camphorsulfonic acid Chemical compound C1CC2(CS(O)(=O)=O)C(=O)CC1C2(C)C MIOPJNTWMNEORI-UHFFFAOYSA-N 0.000 description 6
- 238000004440 column chromatography Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000000746 purification Methods 0.000 description 6
- VINRTVDNUHIWCB-UHFFFAOYSA-N 2,2,2-trifluoro-1-(2,4,6-trimethylphenyl)ethanone Chemical compound CC1=CC(C)=C(C(=O)C(F)(F)F)C(C)=C1 VINRTVDNUHIWCB-UHFFFAOYSA-N 0.000 description 5
- NCJZVRPXSSYDBG-UHFFFAOYSA-N 2,2,2-trifluoro-1-(4-methoxyphenyl)ethanone Chemical compound COC1=CC=C(C(=O)C(F)(F)F)C=C1 NCJZVRPXSSYDBG-UHFFFAOYSA-N 0.000 description 5
- IKMBXKGUMLSBOT-UHFFFAOYSA-M 2,3,4,5,6-pentafluorobenzenesulfonate Chemical compound [O-]S(=O)(=O)C1=C(F)C(F)=C(F)C(F)=C1F IKMBXKGUMLSBOT-UHFFFAOYSA-M 0.000 description 5
- LBLYYCQCTBFVLH-UHFFFAOYSA-M 2-methylbenzenesulfonate Chemical compound CC1=CC=CC=C1S([O-])(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-M 0.000 description 5
- RLTPXEAFDJVHSN-UHFFFAOYSA-N 4-(trifluoromethyl)benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=C(C(F)(F)F)C=C1 RLTPXEAFDJVHSN-UHFFFAOYSA-N 0.000 description 5
- WVSYONICNIDYBE-UHFFFAOYSA-M 4-fluorobenzenesulfonate Chemical compound [O-]S(=O)(=O)C1=CC=C(F)C=C1 WVSYONICNIDYBE-UHFFFAOYSA-M 0.000 description 5
- 125000004864 4-thiomethylphenyl group Chemical group 0.000 description 5
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 5
- QDHFHIQKOVNCNC-UHFFFAOYSA-M butane-1-sulfonate Chemical compound CCCCS([O-])(=O)=O QDHFHIQKOVNCNC-UHFFFAOYSA-M 0.000 description 5
- 238000011161 development Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 5
- YRIUSKIDOIARQF-UHFFFAOYSA-N dodecyl benzenesulfonate Chemical compound CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 YRIUSKIDOIARQF-UHFFFAOYSA-N 0.000 description 5
- 229940071161 dodecylbenzenesulfonate Drugs 0.000 description 5
- 125000001033 ether group Chemical group 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- WLGDAKIJYPIYLR-UHFFFAOYSA-M octane-1-sulfonate Chemical compound CCCCCCCCS([O-])(=O)=O WLGDAKIJYPIYLR-UHFFFAOYSA-M 0.000 description 5
- YFSUTJLHUFNCNZ-UHFFFAOYSA-N perfluorooctane-1-sulfonic acid Chemical compound OS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F YFSUTJLHUFNCNZ-UHFFFAOYSA-N 0.000 description 5
- JGTNAGYHADQMCM-UHFFFAOYSA-M 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonate Chemical compound [O-]S(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F JGTNAGYHADQMCM-UHFFFAOYSA-M 0.000 description 4
- JIQXRLOYKOJECL-UHFFFAOYSA-N 1-(2-chloroethoxy)-2-methoxyethane Chemical compound COCCOCCCl JIQXRLOYKOJECL-UHFFFAOYSA-N 0.000 description 4
- GPTVQTPMFOLLOA-UHFFFAOYSA-N 1-chloro-2-ethoxyethane Chemical compound CCOCCCl GPTVQTPMFOLLOA-UHFFFAOYSA-N 0.000 description 4
- XGMDYIYCKWMWLY-UHFFFAOYSA-N 2,2,2-trifluoroethanesulfonic acid Chemical compound OS(=O)(=O)CC(F)(F)F XGMDYIYCKWMWLY-UHFFFAOYSA-N 0.000 description 4
- DWYHDSLIWMUSOO-UHFFFAOYSA-N 2-phenyl-1h-benzimidazole Chemical compound C1=CC=CC=C1C1=NC2=CC=CC=C2N1 DWYHDSLIWMUSOO-UHFFFAOYSA-N 0.000 description 4
- YXHKONLOYHBTNS-UHFFFAOYSA-N Diazomethane Chemical compound C=[N+]=[N-] YXHKONLOYHBTNS-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 150000007514 bases Chemical class 0.000 description 4
- 125000003785 benzimidazolyl group Chemical group N1=C(NC2=C1C=CC=C2)* 0.000 description 4
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 4
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 description 4
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 4
- PSZYNBSKGUBXEH-UHFFFAOYSA-M naphthalene-1-sulfonate Chemical compound C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-M 0.000 description 4
- 125000003170 phenylsulfonyl group Chemical group C1(=CC=CC=C1)S(=O)(=O)* 0.000 description 4
- 229920002120 photoresistant polymer Polymers 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 4
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical compound OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 description 4
- 230000001603 reducing effect Effects 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 4
- ITMCEJHCFYSIIV-UHFFFAOYSA-M triflate Chemical compound [O-]S(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-M 0.000 description 4
- KYXIHKXHBSORRJ-UHFFFAOYSA-N 1-(2,4-dimethylphenyl)-2,2,2-trifluoroethanone Chemical compound CC1=CC=C(C(=O)C(F)(F)F)C(C)=C1 KYXIHKXHBSORRJ-UHFFFAOYSA-N 0.000 description 3
- NMYVAUGOQOQAFB-UHFFFAOYSA-N 1-(2-ethoxyethyl)-2-methylbenzimidazole Chemical compound C1=CC=C2N(CCOCC)C(C)=NC2=C1 NMYVAUGOQOQAFB-UHFFFAOYSA-N 0.000 description 3
- QFQHHZUEMLLTMM-UHFFFAOYSA-N 1-[2-(2-ethoxyethoxy)ethyl]-2-methylbenzimidazole Chemical compound C1=CC=C2N(CCOCCOCC)C(C)=NC2=C1 QFQHHZUEMLLTMM-UHFFFAOYSA-N 0.000 description 3
- YCZWQKDPSPFXDJ-UHFFFAOYSA-N 1-[2-[(2-methylpropan-2-yl)oxy]ethyl]benzimidazole Chemical compound C1=CC=C2N(CCOC(C)(C)C)C=NC2=C1 YCZWQKDPSPFXDJ-UHFFFAOYSA-N 0.000 description 3
- JOLQKTGDSGKSKJ-UHFFFAOYSA-N 1-ethoxypropan-2-ol Chemical compound CCOCC(C)O JOLQKTGDSGKSKJ-UHFFFAOYSA-N 0.000 description 3
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 3
- 238000005160 1H NMR spectroscopy Methods 0.000 description 3
- YHGKEORTCHVBQH-UHFFFAOYSA-M 2,4,6-tri(propan-2-yl)benzenesulfonate Chemical compound CC(C)C1=CC(C(C)C)=C(S([O-])(=O)=O)C(C(C)C)=C1 YHGKEORTCHVBQH-UHFFFAOYSA-M 0.000 description 3
- LXFQSRIDYRFTJW-UHFFFAOYSA-M 2,4,6-trimethylbenzenesulfonate Chemical compound CC1=CC(C)=C(S([O-])(=O)=O)C(C)=C1 LXFQSRIDYRFTJW-UHFFFAOYSA-M 0.000 description 3
- QHCCOYAKYCWDOJ-UHFFFAOYSA-N 2-ethyl-1h-benzimidazole Chemical compound C1=CC=C2NC(CC)=NC2=C1 QHCCOYAKYCWDOJ-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 3
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- AFBPFSWMIHJQDM-UHFFFAOYSA-N N-methylaniline Chemical compound CNC1=CC=CC=C1 AFBPFSWMIHJQDM-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 125000001153 fluoro group Chemical group F* 0.000 description 3
- 125000001046 glycoluril group Chemical class [H]C12N(*)C(=O)N(*)C1([H])N(*)C(=O)N2* 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 238000001459 lithography Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 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 3
- KVBGVZZKJNLNJU-UHFFFAOYSA-N naphthalene-2-sulfonic acid Chemical compound C1=CC=CC2=CC(S(=O)(=O)O)=CC=C21 KVBGVZZKJNLNJU-UHFFFAOYSA-N 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- WMGVPDQNPUQRND-UHFFFAOYSA-N (2-methylphenyl)acetonitrile Chemical compound CC1=CC=CC=C1CC#N WMGVPDQNPUQRND-UHFFFAOYSA-N 0.000 description 2
- LJHFIVQEAFAURQ-ZPUQHVIOSA-N (NE)-N-[(2E)-2-hydroxyiminoethylidene]hydroxylamine Chemical class O\N=C\C=N\O LJHFIVQEAFAURQ-ZPUQHVIOSA-N 0.000 description 2
- GQNTZAWVZSKJKE-UHFFFAOYSA-N 1,1,3,3-tetrakis(methoxymethyl)urea Chemical compound COCN(COC)C(=O)N(COC)COC GQNTZAWVZSKJKE-UHFFFAOYSA-N 0.000 description 2
- NDDRUUNXMMRCIV-UHFFFAOYSA-N 1-(2-chloroethoxy)-2-ethoxyethane Chemical compound CCOCCOCCCl NDDRUUNXMMRCIV-UHFFFAOYSA-N 0.000 description 2
- XMXWFUCDQGAMGH-UHFFFAOYSA-N 1-(2-cyclohexyloxyethoxy)-2-phenylbenzimidazole Chemical compound C1CCCCC1OCCON(C1=CC=CC=C1N=1)C=1C1=CC=CC=C1 XMXWFUCDQGAMGH-UHFFFAOYSA-N 0.000 description 2
- SIXQAIAHAKWOBA-UHFFFAOYSA-N 1-(2-cyclohexyloxyethyl)benzimidazole Chemical compound C1=NC2=CC=CC=C2N1CCOC1CCCCC1 SIXQAIAHAKWOBA-UHFFFAOYSA-N 0.000 description 2
- VWGCYXFUCSSBFJ-UHFFFAOYSA-N 1-(2-ethoxyethyl)-2-phenylbenzimidazole Chemical compound N=1C2=CC=CC=C2N(CCOCC)C=1C1=CC=CC=C1 VWGCYXFUCSSBFJ-UHFFFAOYSA-N 0.000 description 2
- JBJUUEWWQLMAJH-UHFFFAOYSA-N 1-(2-ethoxyethyl)benzimidazole Chemical compound C1=CC=C2N(CCOCC)C=NC2=C1 JBJUUEWWQLMAJH-UHFFFAOYSA-N 0.000 description 2
- AXTAZNRLRJLLLE-UHFFFAOYSA-N 1-(2-methoxyethyl)-2-methylbenzimidazole Chemical compound C1=CC=C2N(CCOC)C(C)=NC2=C1 AXTAZNRLRJLLLE-UHFFFAOYSA-N 0.000 description 2
- JEUJFDMULHJHDL-UHFFFAOYSA-N 1-(2-methoxyethyl)benzimidazole Chemical compound C1=CC=C2N(CCOC)C=NC2=C1 JEUJFDMULHJHDL-UHFFFAOYSA-N 0.000 description 2
- HRRGDKJFVIFTQK-UHFFFAOYSA-N 1-(2-propan-2-yloxyethyl)benzimidazole Chemical compound C1=CC=C2N(CCOC(C)C)C=NC2=C1 HRRGDKJFVIFTQK-UHFFFAOYSA-N 0.000 description 2
- XUIVLLNMYJZOBL-UHFFFAOYSA-N 1-(2-propoxyethyl)benzimidazole Chemical compound C1=CC=C2N(CCOCCC)C=NC2=C1 XUIVLLNMYJZOBL-UHFFFAOYSA-N 0.000 description 2
- YFISYXOGMSGFRE-UHFFFAOYSA-N 1-(3,4-dimethoxyphenyl)-2,2,2-trifluoroethanone Chemical compound COC1=CC=C(C(=O)C(F)(F)F)C=C1OC YFISYXOGMSGFRE-UHFFFAOYSA-N 0.000 description 2
- SCKJMHAZRHWHTP-UHFFFAOYSA-N 1-(4-benzylphenyl)-2,2,2-trifluoroethanone Chemical compound C1=CC(C(=O)C(F)(F)F)=CC=C1CC1=CC=CC=C1 SCKJMHAZRHWHTP-UHFFFAOYSA-N 0.000 description 2
- WODLURYTHKQUET-UHFFFAOYSA-N 1-[2-(2-chloroethoxy)ethoxy]-2-methoxyethane Chemical compound COCCOCCOCCCl WODLURYTHKQUET-UHFFFAOYSA-N 0.000 description 2
- KMRKGSRFXVUJMJ-UHFFFAOYSA-N 1-[2-(2-methoxyethoxy)ethyl]-2-methylbenzimidazole Chemical compound C1=CC=C2N(CCOCCOC)C(C)=NC2=C1 KMRKGSRFXVUJMJ-UHFFFAOYSA-N 0.000 description 2
- WBJQDJXGXGDMCV-UHFFFAOYSA-N 1-[2-(2-methoxyethoxy)ethyl]-2-phenylbenzimidazole Chemical compound N=1C2=CC=CC=C2N(CCOCCOC)C=1C1=CC=CC=C1 WBJQDJXGXGDMCV-UHFFFAOYSA-N 0.000 description 2
- GEQNTOBPUKQOQG-UHFFFAOYSA-N 1-[2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethyl]benzimidazole Chemical compound C1=CC=C2N(CCOCCOCCOCCOC)C=NC2=C1 GEQNTOBPUKQOQG-UHFFFAOYSA-N 0.000 description 2
- OESYNCIYSBWEQV-UHFFFAOYSA-N 1-[diazo-(2,4-dimethylphenyl)sulfonylmethyl]sulfonyl-2,4-dimethylbenzene Chemical compound CC1=CC(C)=CC=C1S(=O)(=O)C(=[N+]=[N-])S(=O)(=O)C1=CC=C(C)C=C1C OESYNCIYSBWEQV-UHFFFAOYSA-N 0.000 description 2
- SRFRYCOTCQAUAM-UHFFFAOYSA-N 1-[diazo-(4-hexoxy-2-methylphenyl)sulfonylmethyl]sulfonyl-4-hexoxy-2-methylbenzene Chemical compound CC1=CC(OCCCCCC)=CC=C1S(=O)(=O)C(=[N+]=[N-])S(=O)(=O)C1=CC=C(OCCCCCC)C=C1C SRFRYCOTCQAUAM-UHFFFAOYSA-N 0.000 description 2
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- BEYLCDIPKBCBGC-UHFFFAOYSA-N [[cyano(phenyl)methylidene]amino] 4-nitrobenzenesulfonate Chemical compound C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)ON=C(C#N)C1=CC=CC=C1 BEYLCDIPKBCBGC-UHFFFAOYSA-N 0.000 description 1
- KOMVIYNHRYVHAN-UHFFFAOYSA-N [[cyano(thiophen-2-yl)methylidene]amino] benzenesulfonate Chemical compound C=1C=CC=CC=1S(=O)(=O)ON=C(C#N)C1=CC=CS1 KOMVIYNHRYVHAN-UHFFFAOYSA-N 0.000 description 1
- KIRLCRYDHBSOGA-UHFFFAOYSA-N [[cyano(thiophen-3-yl)methylidene]amino] 4-methylbenzenesulfonate Chemical compound C1=CC(C)=CC=C1S(=O)(=O)ON=C(C#N)C1=CSC=C1 KIRLCRYDHBSOGA-UHFFFAOYSA-N 0.000 description 1
- UHNRALZVSXNUTL-UHFFFAOYSA-N [[cyano-(2,4-dichlorophenyl)methylidene]amino] benzenesulfonate Chemical compound ClC1=CC(Cl)=CC=C1C(C#N)=NOS(=O)(=O)C1=CC=CC=C1 UHNRALZVSXNUTL-UHFFFAOYSA-N 0.000 description 1
- YLEGKVDNSYZTCN-UHFFFAOYSA-N [[cyano-(2,6-dichlorophenyl)methylidene]amino] benzenesulfonate Chemical compound ClC1=CC=CC(Cl)=C1C(C#N)=NOS(=O)(=O)C1=CC=CC=C1 YLEGKVDNSYZTCN-UHFFFAOYSA-N 0.000 description 1
- LOVKRNMQTUTWQJ-UHFFFAOYSA-N [[cyano-(4-methoxyphenyl)methylidene]amino] 2-chlorobenzenesulfonate Chemical compound C1=CC(OC)=CC=C1C(C#N)=NOS(=O)(=O)C1=CC=CC=C1Cl LOVKRNMQTUTWQJ-UHFFFAOYSA-N 0.000 description 1
- OGYIZEXHMFOOOY-UHFFFAOYSA-N [[cyano-(4-methoxyphenyl)methylidene]amino] benzenesulfonate Chemical compound C1=CC(OC)=CC=C1C(C#N)=NOS(=O)(=O)C1=CC=CC=C1 OGYIZEXHMFOOOY-UHFFFAOYSA-N 0.000 description 1
- QFKJMDYQKVPGNM-UHFFFAOYSA-N [benzenesulfonyl(diazo)methyl]sulfonylbenzene Chemical compound C=1C=CC=CC=1S(=O)(=O)C(=[N+]=[N-])S(=O)(=O)C1=CC=CC=C1 QFKJMDYQKVPGNM-UHFFFAOYSA-N 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
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- 125000003670 adamantan-2-yl group Chemical group [H]C1([H])C(C2([H])[H])([H])C([H])([H])C3([H])C([*])([H])C1([H])C([H])([H])C2([H])C3([H])[H] 0.000 description 1
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- DNFSNYQTQMVTOK-UHFFFAOYSA-N bis(4-tert-butylphenyl)iodanium Chemical compound C1=CC(C(C)(C)C)=CC=C1[I+]C1=CC=C(C(C)(C)C)C=C1 DNFSNYQTQMVTOK-UHFFFAOYSA-N 0.000 description 1
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- LNNMPUCAOZRXCW-UHFFFAOYSA-N bis[4-(dimethylamino)phenyl]-[4-[(2-methylpropan-2-yl)oxy]phenyl]sulfanium Chemical compound C1=CC(N(C)C)=CC=C1[S+](C=1C=CC(=CC=1)N(C)C)C1=CC=C(OC(C)(C)C)C=C1 LNNMPUCAOZRXCW-UHFFFAOYSA-N 0.000 description 1
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- ORBNOOYFBGZSCL-UHFFFAOYSA-N dimethyl(naphthalen-2-yl)sulfanium Chemical compound C1=CC=CC2=CC([S+](C)C)=CC=C21 ORBNOOYFBGZSCL-UHFFFAOYSA-N 0.000 description 1
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- OZLBDYMWFAHSOQ-UHFFFAOYSA-N diphenyliodanium Chemical compound C=1C=CC=CC=1[I+]C1=CC=CC=C1 OZLBDYMWFAHSOQ-UHFFFAOYSA-N 0.000 description 1
- ORKZATPRQQSLDT-UHFFFAOYSA-N diphenylmethanethiol Chemical compound C=1C=CC=CC=1C(S)C1=CC=CC=C1 ORKZATPRQQSLDT-UHFFFAOYSA-N 0.000 description 1
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- 229940117360 ethyl pyruvate Drugs 0.000 description 1
- HQXIXXHYKGSHCN-UHFFFAOYSA-N fluoro ethanesulfonate Chemical compound CCS(=O)(=O)OF HQXIXXHYKGSHCN-UHFFFAOYSA-N 0.000 description 1
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- 238000005227 gel permeation chromatography Methods 0.000 description 1
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- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
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- SUHOWDMWVWQBPK-UHFFFAOYSA-N methyl 2-[4-(2,2,2-trifluoroacetyl)phenoxy]acetate Chemical compound COC(=O)COC1=CC=C(C(=O)C(F)(F)F)C=C1 SUHOWDMWVWQBPK-UHFFFAOYSA-N 0.000 description 1
- BDJSOPWXYLFTNW-UHFFFAOYSA-N methyl 3-methoxypropanoate Chemical compound COCCC(=O)OC BDJSOPWXYLFTNW-UHFFFAOYSA-N 0.000 description 1
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- JESXATFQYMPTNL-UHFFFAOYSA-N mono-hydroxyphenyl-ethylene Natural products OC1=CC=CC=C1C=C JESXATFQYMPTNL-UHFFFAOYSA-N 0.000 description 1
- ZPXXOTFYEDQUFH-UHFFFAOYSA-N n-[1-(2,4-dimethylphenyl)-2,2,2-trifluoroethylidene]hydroxylamine Chemical compound CC1=CC=C(C(=NO)C(F)(F)F)C(C)=C1 ZPXXOTFYEDQUFH-UHFFFAOYSA-N 0.000 description 1
- UIWMMUSDNIMEBK-UHFFFAOYSA-N naphthalen-2-yl(diphenyl)sulfanium Chemical compound C1=CC=CC=C1[S+](C=1C=C2C=CC=CC2=CC=1)C1=CC=CC=C1 UIWMMUSDNIMEBK-UHFFFAOYSA-N 0.000 description 1
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- IZJVVXCHJIQVOL-UHFFFAOYSA-N nitro(phenyl)methanesulfonic acid Chemical compound OS(=O)(=O)C([N+]([O-])=O)C1=CC=CC=C1 IZJVVXCHJIQVOL-UHFFFAOYSA-N 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
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- 125000003261 o-tolyl group Chemical group [H]C1=C([H])C(*)=C(C([H])=C1[H])C([H])([H])[H] 0.000 description 1
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- 125000003854 p-chlorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1Cl 0.000 description 1
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- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
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- 239000002798 polar solvent Substances 0.000 description 1
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- NTTOTNSKUYCDAV-UHFFFAOYSA-N potassium hydride Chemical compound [KH] NTTOTNSKUYCDAV-UHFFFAOYSA-N 0.000 description 1
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- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 description 1
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- 235000009518 sodium iodide Nutrition 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229960002317 succinimide Drugs 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
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- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
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- WMOVHXAZOJBABW-UHFFFAOYSA-N tert-butyl acetate Chemical compound CC(=O)OC(C)(C)C WMOVHXAZOJBABW-UHFFFAOYSA-N 0.000 description 1
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- 125000001973 tert-pentyl group Chemical group [H]C([H])([H])C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 description 1
- DPKBAXPHAYBPRL-UHFFFAOYSA-M tetrabutylazanium;iodide Chemical compound [I-].CCCC[N+](CCCC)(CCCC)CCCC DPKBAXPHAYBPRL-UHFFFAOYSA-M 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- VRAWXSCCKYEDOG-UHFFFAOYSA-N tribenzylsulfanium Chemical compound C=1C=CC=CC=1C[S+](CC=1C=CC=CC=1)CC1=CC=CC=C1 VRAWXSCCKYEDOG-UHFFFAOYSA-N 0.000 description 1
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- USMVHTQGEMDHKL-UHFFFAOYSA-M triphenylsulfanium;2,4,6-tri(propan-2-yl)benzenesulfonate Chemical compound CC(C)C1=CC(C(C)C)=C(S([O-])(=O)=O)C(C(C)C)=C1.C1=CC=CC=C1[S+](C=1C=CC=CC=1)C1=CC=CC=C1 USMVHTQGEMDHKL-UHFFFAOYSA-M 0.000 description 1
- DMJFWVWYOPMJIK-UHFFFAOYSA-N tris[3,4-bis[(2-methylpropan-2-yl)oxy]phenyl]sulfanium Chemical compound C1=C(OC(C)(C)C)C(OC(C)(C)C)=CC=C1[S+](C=1C=C(OC(C)(C)C)C(OC(C)(C)C)=CC=1)C1=CC=C(OC(C)(C)C)C(OC(C)(C)C)=C1 DMJFWVWYOPMJIK-UHFFFAOYSA-N 0.000 description 1
- HENPLGIMUIZOJQ-UHFFFAOYSA-N tris[3-[(2-methylpropan-2-yl)oxy]phenyl]sulfanium Chemical compound CC(C)(C)OC1=CC=CC([S+](C=2C=C(OC(C)(C)C)C=CC=2)C=2C=C(OC(C)(C)C)C=CC=2)=C1 HENPLGIMUIZOJQ-UHFFFAOYSA-N 0.000 description 1
- YNIMTIPTLNZOMC-UHFFFAOYSA-N tris[4-(dimethylamino)phenyl]sulfanium Chemical compound C1=CC(N(C)C)=CC=C1[S+](C=1C=CC(=CC=1)N(C)C)C1=CC=C(N(C)C)C=C1 YNIMTIPTLNZOMC-UHFFFAOYSA-N 0.000 description 1
- JXPBRQHHMIKAPW-UHFFFAOYSA-N tris[4-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethoxy]phenyl]sulfanium Chemical compound C1=CC(OCC(=O)OC(C)(C)C)=CC=C1[S+](C=1C=CC(OCC(=O)OC(C)(C)C)=CC=1)C1=CC=C(OCC(=O)OC(C)(C)C)C=C1 JXPBRQHHMIKAPW-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/038—Macromolecular compounds which are rendered insoluble or differentially wettable
- G03F7/0382—Macromolecular compounds which are rendered insoluble or differentially wettable the macromolecular compound being present in a chemically amplified negative photoresist composition
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/039—Macromolecular compounds which are photodegradable, e.g. positive electron resists
- G03F7/0392—Macromolecular compounds which are photodegradable, e.g. positive electron resists the macromolecular compound being present in a chemically amplified positive photoresist composition
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/039—Macromolecular compounds which are photodegradable, e.g. positive electron resists
- G03F7/0392—Macromolecular compounds which are photodegradable, e.g. positive electron resists the macromolecular compound being present in a chemically amplified positive photoresist composition
- G03F7/0395—Macromolecular compounds which are photodegradable, e.g. positive electron resists the macromolecular compound being present in a chemically amplified positive photoresist composition the macromolecular compound having a backbone with alicyclic moieties
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/039—Macromolecular compounds which are photodegradable, e.g. positive electron resists
- G03F7/0392—Macromolecular compounds which are photodegradable, e.g. positive electron resists the macromolecular compound being present in a chemically amplified positive photoresist composition
- G03F7/0397—Macromolecular compounds which are photodegradable, e.g. positive electron resists the macromolecular compound being present in a chemically amplified positive photoresist composition the macromolecular compound having an alicyclic moiety in a side chain
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/0045—Photosensitive materials with organic non-macromolecular light-sensitive compounds not otherwise provided for, e.g. dissolution inhibitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/1053—Imaging affecting physical property or radiation sensitive material, or producing nonplanar or printing surface - process, composition, or product: radiation sensitive composition or product or process of making binder containing
- Y10S430/1055—Radiation sensitive composition or product or process of making
- Y10S430/127—Spectral sensitizer containing
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Materials For Photolithography (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Polyethers (AREA)
Description
のレジスト性能を最適に調整することができるものである。
(A)上記一般式(1)で示される含窒素有機化合物、
(B)有機溶剤、
(C)酸不安定基で保護された酸性官能基を有するアルカリ不溶性又は難溶性の樹脂であって、該酸不安定基が脱離したときにアルカリ可溶性となるベース樹脂、
(D)酸発生剤
を含有することを特徴とするポジ型レジスト材料を提供する。
(A)上記一般式(1)で示される含窒素有機化合物、
(B)有機溶剤、
(C)アルカリ可溶性樹脂であって、架橋剤による架橋によってアルカリ難溶性となるベース樹脂、
(D)酸発生剤、
(E)酸によって架橋する架橋剤
を含有することを特徴とするネガ型レジスト材料を提供する。
(1)上記いずれかの化学増幅型レジスト材料を基板上に塗布する工程と、
(2)次いで加熱処理後、フォトマスクを介して波長300nm以下の高エネルギー線もしくは電子線で露光する工程と、
(3)加熱処理した後、現像液を用いて現像する工程と
を含むことを特徴とするパターン形成方法を提供する。
本発明者らは、化学増幅型レジスト材料への配合により、高い解像性と良好なパターン形状、及びパターン側壁荒れ低減効果を与える未知の化合物について鋭意検討を重ねた。その結果、下記一般式(1)で示される、ベンズイミダゾール骨格と特定の構造のエーテル鎖部分を有する含窒素有機化合物が、後述する方法により高収率かつ簡便に得られ、更に、この含窒素有機化合物を配合して用いれば、高い解像性と良好なパターン形状を与え、パターン側壁荒れ低減効果をも有する化学増幅型フォトレジスト材料が得られることを見出し、本発明を完成させたものである。
(A)上記式(1)の含窒素有機化合物、
(B)有機溶剤、
(C)ベース樹脂、
(D)酸発生剤
を含有する組成とすることができる。
以下、これらの成分につき詳述する。
本発明の含窒素有機化合物を以下に示す方法で合成した。
IR(薄膜): ν =3085,3054,2983,2929,2890,2831,1616,1496,1457,1361,1332,1288,1276,1251,1214,1199,1180,1151,1118,1066,1014,968,931,887,835,767,744,705,632cm-1
1H−NMR(600MHz in CDCl3) : δ=3.29(3H,s),3.69(2H,t,J=5.2Hz),4.29(2H,t,J=5.2Hz),7.27(1H,dt,J=1.4,7.2Hz),7.29(1H,dt,J=1.7,7.2Hz),7.38(1H,m),7.80(1H,m),7.95(1H,br.s).
[合成例2]1−(2−メトキシエチル)−2−メチル−1H−ベンズイミダゾール(amine2)の合成
IR(薄膜): ν =3089,3054,2877,2823,1614,1494,1459,1380,1363,1332,1288,1203,1114,1027,1006,929,887,848,767,746,705,632cm-1
1H−NMR(600MHz in CDCl3) : δ=3.32(3H,s),3.45(2H,m),3.53(2H,m),3.81(2H,t,J=5.3Hz),4.33(2H,t,J=5.3Hz),7.26(1H,dt,J=1.0,7.3Hz),7.28(1H,dt,J=1.4,7.3Hz),7.40(1H,m),7.79(1H,m),7.99(1H,br.s).
IR(薄膜): ν =3091,3054,2875,1614,1496,1459,1363,1332,1288,1253,1203,1108,1027,1006,931,887,850,769,746,705,634cm-1
1H−NMR(600MHz in CDCl3) : δ=3.34(3H,s),3.45−3.47(2H,m),3.52−3.54(2H,m),3.54−3.57(4H,m),3.81(2H,t,J=5.3Hz),4.32(2H,t,J=5.3Hz),7.25(1H,dt,J=1.4,7.2Hz),7.28(1H,dt,J=1.4,7.2Hz),7.39(1H,m),7.79(1H,m),7.99(1H,br.s).
本発明の含窒素有機化合物を配合した本発明のレジスト材料を調製し、次いで本発明のパターン形成方法を実施し、その解像性、パターン形状及び側壁荒れの評価を行った。
合成例1で得られた含窒素有機化合物(amine1)を用いて、以下に示す組成で混合した後、孔径0.2μmのテフロン(登録商標)フィルターを用いて濾過し、レジスト材料を調製した。
(A)ベースポリマー(Polymer3)100質量部
(B)酸発生剤(PAG5)2.0質量部
(C)溶剤としてプロピレングリコールモノメチルエーテルアセテート280質量部
及び乳酸エチル120質量部
(D)含窒素有機化合物(amine1)0.1質量部
このレジスト材料を、反射防止膜(日産化学工業(株)製、DUV30,55nm)を塗布したシリコンウエハー上へ回転塗布し、100℃、90秒間の熱処理を施して、厚さ550nmのレジスト膜を形成した。これをエキシマレーザーステッパー((株)ニコン製、NSR−S203B、NA−0.68、σ0.75、2/3輪帯照明)を用いて露光し、露光後110℃で90秒間熱処理を施した後、23℃まで冷却し、2.38質量%のテトラメチルアンモニウムヒドロキシド水溶液を用いて、23℃、60秒間パドル現像を行い、1:1のライン・アンド・スペース・パターンを形成した。現像済ウエハーを上空SEMで観察し、0.18μmのライン・アンド・スペース・パターンを1:1で解像する露光量(最適露光量)において、0.15μmのライン・アンド・スペース・パターンを剥がれなく、分離・解像していた。また、パターン断面を観察したところ、パターン形状は矩形かつ基板に対して垂直であり、パターン側壁に目立った荒れは見られなかった。
実施例1と同様にして合成例2〜24により合成した含窒素有機化合物(amine2〜24)及び比較となる含窒素有機化合物について、これらを配合したレジスト材料を調製し、解像性、パターン形状及び側壁荒れの評価を行った。
上記評価結果をもとに0.15μmのライン・アンド・スペース・パターンの解像の可否、及び側壁荒れについてそれぞれ○△×で表し、同時に観察されたパターン形状を記載し、下記の表1(実施例)及び表2(比較例)にまとめた。
合成例1で得られた含窒素有機化合物を用いて、以下に示す組成で混合した後、孔径0.2μmのテフロン(登録商標)フィルターを用いて濾過し、レジスト材料を調製した。
(A)ベースポリマー(Polymer11)80質量部
(B)酸発生剤(PAG1)2.0質量部
(C)溶剤としてプロピレングリコールモノメチルエーテルアセテート640質量部
(D)含窒素有機化合物(amine1)0.25質量部
このレジスト材料を、反射防止膜(日産化学工業(株)製、ARC29A,78nm)を塗布したシリコンウエハー上へ回転塗布し、130℃、60秒間の熱処理を施して、厚さ300nmのレジスト膜を形成した。これをArFエキシマレーザーステッパー((株)ニコン製、NA=0.68)を用いて露光し、115℃、60秒間の熱処理を施した後、23℃まで冷却し、2.38質量%のテトラメチルアンモニウムヒドロキシド水溶液を用いて、23℃、60秒間パドル現像を行い、1:1のライン・アンド・スペース・パターンを形成した。現像済ウエハーを上空SEMで観察し、0.15μmのライン・アンド・スペース・パターンを1:1で解像する露光量(最適露光量)において、0.13μmのライン・アンド・スペース・パターンを剥がれなく、分離・解像していた。また、パターン断面を観察したところ、パターン形状は矩形かつ基板に対して垂直であり、パターン側壁に目立った荒れは見られなかった。
実施例34とほぼ同様にして、合成例2〜24により合成した含窒素有機化合物(amine2〜24)及び比較となる含窒素有機化合物について、これらを配合したレジスト材料を調製し、解像性、パターン形状及び側壁荒れの評価を行った。
上記評価結果をもとに0.13μmのライン・アンド・スペース・パターンの解像の可否、及び側壁荒れをそれぞれ○△×で表し、同時に観察されたパターン形状を記載し、下記の表3(実施例)及び表4(比較例)にまとめた。
Claims (5)
- (A)請求項1記載の含窒素有機化合物、
(B)有機溶剤、
(C)酸不安定基で保護された酸性官能基を有するアルカリ不溶性又は難溶性の樹脂であって、該酸不安定基が脱離したときにアルカリ可溶性となるベース樹脂、
(D)酸発生剤
を含有することを特徴とするポジ型化学増幅レジスト材料。 - (A)請求項1記載の含窒素有機化合物、
(B)有機溶剤、
(C)アルカリ可溶性樹脂であって、架橋剤による架橋によってアルカリ難溶性となるベース樹脂、
(D)酸発生剤、
(E)酸によって架橋する架橋剤
を含有することを特徴とするネガ型化学増幅レジスト材料。 - (1)請求項2乃至4のいずれか1項に記載の化学増幅型レジスト材料を基板上に塗布する工程と、
(2)次いで加熱処理後、フォトマスクを介して波長300nm以下の高エネルギー線もしくは電子線で露光する工程と、
(3)加熱処理した後、現像液を用いて現像する工程と
を含むことを特徴とするパターン形成方法。
Priority Applications (4)
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JP2003368421A JP4355917B2 (ja) | 2003-10-29 | 2003-10-29 | 含窒素有機化合物、レジスト材料及びパターン形成方法 |
KR1020040086479A KR100870343B1 (ko) | 2003-10-29 | 2004-10-28 | 질소 함유 유기 화합물, 레지스트 재료 및 패턴 형성 방법 |
TW093132775A TWI304401B (en) | 2003-10-29 | 2004-10-28 | Nitrogen-containing organic compound, resist composition and patterning process |
US10/974,759 US7252925B2 (en) | 2003-10-29 | 2004-10-28 | Nitrogen-containing organic compound, resist composition and patterning process |
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KR100863119B1 (ko) * | 2001-06-29 | 2008-10-14 | 제이에스알 가부시끼가이샤 | 산발생제, 술폰산, 술폰산 유도체 및 감방사선성 수지조성물 |
JP4225069B2 (ja) | 2003-02-03 | 2009-02-18 | 株式会社ジェイテクト | センサ組立体、シール装置ならびに転がり軸受装置 |
KR101035881B1 (ko) * | 2003-03-14 | 2011-05-20 | 후지필름 가부시키가이샤 | 감광성 조성물 |
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2003
- 2003-10-29 JP JP2003368421A patent/JP4355917B2/ja not_active Expired - Lifetime
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2004
- 2004-10-28 TW TW093132775A patent/TWI304401B/zh not_active IP Right Cessation
- 2004-10-28 KR KR1020040086479A patent/KR100870343B1/ko active IP Right Grant
- 2004-10-28 US US10/974,759 patent/US7252925B2/en not_active Expired - Lifetime
Also Published As
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US20050095533A1 (en) | 2005-05-05 |
KR20050040787A (ko) | 2005-05-03 |
US7252925B2 (en) | 2007-08-07 |
KR100870343B1 (ko) | 2008-11-25 |
JP2005132749A (ja) | 2005-05-26 |
TWI304401B (en) | 2008-12-21 |
TW200526741A (en) | 2005-08-16 |
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