JP5385017B2 - レジストパターン形成方法及びフォトマスクの製造方法 - Google Patents
レジストパターン形成方法及びフォトマスクの製造方法 Download PDFInfo
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- JP5385017B2 JP5385017B2 JP2009138741A JP2009138741A JP5385017B2 JP 5385017 B2 JP5385017 B2 JP 5385017B2 JP 2009138741 A JP2009138741 A JP 2009138741A JP 2009138741 A JP2009138741 A JP 2009138741A JP 5385017 B2 JP5385017 B2 JP 5385017B2
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- sulfonate
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- 238000000034 method Methods 0.000 title claims description 31
- 238000004519 manufacturing process Methods 0.000 title claims description 23
- 229920000642 polymer Polymers 0.000 claims description 86
- 239000000178 monomer Substances 0.000 claims description 38
- 239000000203 mixture Substances 0.000 claims description 33
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 31
- 125000004432 carbon atom Chemical group C* 0.000 claims description 30
- 229920005601 base polymer Polymers 0.000 claims description 21
- 239000002904 solvent Substances 0.000 claims description 21
- 125000000217 alkyl group Chemical group 0.000 claims description 15
- 125000006239 protecting group Chemical group 0.000 claims description 12
- 125000003545 alkoxy group Chemical group 0.000 claims description 11
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 9
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 9
- 125000004036 acetal group Chemical group 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 8
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 8
- 125000003367 polycyclic group Chemical group 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 8
- 125000006165 cyclic alkyl group Chemical group 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 125000004122 cyclic group Chemical group 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 125000001183 hydrocarbyl group Chemical group 0.000 claims 6
- -1 acrylic ester Chemical class 0.000 description 156
- 150000002923 oximes Chemical class 0.000 description 51
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 48
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 36
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- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 35
- 239000000243 solution Substances 0.000 description 34
- 238000006243 chemical reaction Methods 0.000 description 32
- 150000001412 amines Chemical class 0.000 description 31
- 239000002253 acid Substances 0.000 description 29
- 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 26
- 239000012953 triphenylsulfonium Substances 0.000 description 26
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 25
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 24
- 239000007983 Tris buffer Substances 0.000 description 24
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 22
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 21
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 21
- 150000001875 compounds Chemical class 0.000 description 19
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 18
- 150000002430 hydrocarbons Chemical group 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 239000000463 material Substances 0.000 description 17
- 229910052757 nitrogen Inorganic materials 0.000 description 17
- HXGDTGSAIMULJN-UHFFFAOYSA-N acenaphthylene Chemical group C1=CC(C=C2)=C3C2=CC=CC3=C1 HXGDTGSAIMULJN-UHFFFAOYSA-N 0.000 description 15
- 125000004054 acenaphthylenyl group Chemical group C1(=CC2=CC=CC3=CC=CC1=C23)* 0.000 description 15
- MFNBODQBPMDPPQ-UHFFFAOYSA-N (4-tert-butylphenyl)-diphenylsulfanium Chemical compound C1=CC(C(C)(C)C)=CC=C1[S+](C=1C=CC=CC=1)C1=CC=CC=C1 MFNBODQBPMDPPQ-UHFFFAOYSA-N 0.000 description 14
- XLLXMBCBJGATSP-UHFFFAOYSA-N 2-phenylethenol Chemical compound OC=CC1=CC=CC=C1 XLLXMBCBJGATSP-UHFFFAOYSA-N 0.000 description 14
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- 229960004063 propylene glycol Drugs 0.000 description 14
- 150000007514 bases Chemical class 0.000 description 13
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 12
- 238000003786 synthesis reaction Methods 0.000 description 12
- PUKFLHPSERHMCY-UHFFFAOYSA-N 1,1,3,3,3-pentafluoro-2-hydroxypropane-1-sulfonic acid Chemical compound FC(F)(F)C(O)C(F)(F)S(O)(=O)=O PUKFLHPSERHMCY-UHFFFAOYSA-N 0.000 description 11
- 238000009826 distribution Methods 0.000 description 11
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- BCDRHEQJJURKAJ-UHFFFAOYSA-N methoxycarbonyl difluoromethanesulfonate Chemical compound COC(=O)OS(=O)(=O)C(F)F BCDRHEQJJURKAJ-UHFFFAOYSA-N 0.000 description 11
- 125000004170 methylsulfonyl group Chemical group [H]C([H])([H])S(*)(=O)=O 0.000 description 11
- 238000003756 stirring Methods 0.000 description 11
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 11
- YDOPMIAANRCTID-UHFFFAOYSA-N 2-(adamantane-1-carbonyloxy)-1,1,3,3,3-pentafluoropropane-1-sulfonic acid Chemical compound C1C(C2)CC3CC2CC1(C(=O)OC(C(F)(F)S(=O)(=O)O)C(F)(F)F)C3 YDOPMIAANRCTID-UHFFFAOYSA-N 0.000 description 10
- 239000004065 semiconductor Substances 0.000 description 10
- RSERVFRSDPESLG-UHFFFAOYSA-N 1,1,3,3,3-pentafluoro-2-(naphthalene-2-carbonyloxy)propane-1-sulfonic acid Chemical compound C1=CC=CC2=CC(C(=O)OC(C(F)(F)S(=O)(=O)O)C(F)(F)F)=CC=C21 RSERVFRSDPESLG-UHFFFAOYSA-N 0.000 description 9
- 238000005160 1H NMR spectroscopy Methods 0.000 description 9
- YPFJVAAXNOANAU-UHFFFAOYSA-N 2-benzoyloxy-1,1,3,3,3-pentafluoropropane-1-sulfonic acid Chemical compound OS(=O)(=O)C(F)(F)C(C(F)(F)F)OC(=O)C1=CC=CC=C1 YPFJVAAXNOANAU-UHFFFAOYSA-N 0.000 description 9
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 9
- ADBIXYANGWRBQE-UHFFFAOYSA-N adamantane methoxycarbonyl difluoromethanesulfonate Chemical compound FC(S(=O)(=O)OC(=O)OC)F.C12CC3CC(CC(C1)C3)C2 ADBIXYANGWRBQE-UHFFFAOYSA-N 0.000 description 9
- 238000007334 copolymerization reaction Methods 0.000 description 9
- 238000010511 deprotection reaction Methods 0.000 description 9
- VTMIXGAMEHRTRP-UHFFFAOYSA-N 1,1,1,3,3-pentafluoropropan-2-yl 4-phenylbenzoate Chemical compound C1=CC(C(=O)OC(C(F)F)C(F)(F)F)=CC=C1C1=CC=CC=C1 VTMIXGAMEHRTRP-UHFFFAOYSA-N 0.000 description 8
- FJJHRCLHBNAGQE-UHFFFAOYSA-N 1,1-difluoro-2-oxo-2-[(4-oxo-1-adamantyl)oxy]ethanesulfonic acid Chemical compound C1C(C2)CC3CC1(OC(=O)C(F)(F)S(=O)(=O)O)CC2C3=O FJJHRCLHBNAGQE-UHFFFAOYSA-N 0.000 description 8
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Chemical compound C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 description 8
- JIQGDNAHBPBBMZ-UHFFFAOYSA-N 2-(4-tert-butylbenzoyl)oxy-1,1,3,3,3-pentafluoropropane-1-sulfonic acid Chemical compound CC(C)(C)C1=CC=C(C(=O)OC(C(F)(F)F)C(F)(F)S(O)(=O)=O)C=C1 JIQGDNAHBPBBMZ-UHFFFAOYSA-N 0.000 description 8
- QQMYPHGEZLNMAJ-UHFFFAOYSA-N 2-(cyclohexanecarbonyloxy)-1,1,3,3,3-pentafluoropropane-1-sulfonic acid Chemical compound OS(=O)(=O)C(F)(F)C(C(F)(F)F)OC(=O)C1CCCCC1 QQMYPHGEZLNMAJ-UHFFFAOYSA-N 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 125000004390 alkyl sulfonyl group Chemical group 0.000 description 8
- 238000004458 analytical method Methods 0.000 description 8
- MIOPJNTWMNEORI-UHFFFAOYSA-N camphorsulfonic acid Chemical compound C1CC2(CS(O)(=O)=O)C(=O)CC1C2(C)C MIOPJNTWMNEORI-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 8
- 150000003949 imides Chemical class 0.000 description 8
- 239000012299 nitrogen atmosphere Substances 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- XZMDYFDOWYDDGM-UHFFFAOYSA-N 2-acetyloxy-1,1,3,3,3-pentafluoropropane-1-sulfonic acid Chemical compound CC(=O)OC(C(F)(F)F)C(F)(F)S(O)(=O)=O XZMDYFDOWYDDGM-UHFFFAOYSA-N 0.000 description 7
- FMFHUEMLVAIBFI-UHFFFAOYSA-N 2-phenylethenyl acetate Chemical compound CC(=O)OC=CC1=CC=CC=C1 FMFHUEMLVAIBFI-UHFFFAOYSA-N 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 7
- 150000005215 alkyl ethers Chemical class 0.000 description 7
- 238000010894 electron beam technology Methods 0.000 description 7
- 230000035945 sensitivity Effects 0.000 description 7
- 125000003011 styrenyl group Chemical group [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- MYVMVYSRGHVWED-UHFFFAOYSA-N (5-oxo-4-oxatricyclo[4.2.1.03,7]nonan-2-yl)oxycarbonyl difluoromethanesulfonate Chemical compound O=C1OC2C(OC(=O)OS(=O)(=O)C(F)F)C3CC1C2C3 MYVMVYSRGHVWED-UHFFFAOYSA-N 0.000 description 6
- GGNTZQPZZSOHAN-UHFFFAOYSA-N 1,1,3,3,3-pentafluoro-2-(4-methylphenyl)sulfonyloxypropane-1-sulfonic acid Chemical compound CC1=CC=C(S(=O)(=O)OC(C(F)(F)F)C(F)(F)S(O)(=O)=O)C=C1 GGNTZQPZZSOHAN-UHFFFAOYSA-N 0.000 description 6
- 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 6
- 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 6
- FRAXPMHQXQQWOE-UHFFFAOYSA-N 2-(2,2-dimethylpropanoyloxy)-1,1,3,3,3-pentafluoropropane-1-sulfonic acid Chemical compound CC(C)(C)C(=O)OC(C(F)(F)F)C(F)(F)S(O)(=O)=O FRAXPMHQXQQWOE-UHFFFAOYSA-N 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
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- 238000011161 development Methods 0.000 description 6
- 230000018109 developmental process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000005530 etching Methods 0.000 description 6
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 6
- 239000003505 polymerization initiator Substances 0.000 description 6
- 238000006116 polymerization reaction Methods 0.000 description 6
- 238000009849 vacuum degassing Methods 0.000 description 6
- ZVIQVQCAOSPBFT-UHFFFAOYSA-N 1,1-difluoro-2-(4-methylphenyl)sulfonyloxyethanesulfonic acid Chemical compound CC1=CC=C(S(=O)(=O)OCC(F)(F)S(O)(=O)=O)C=C1 ZVIQVQCAOSPBFT-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
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 5
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N Lactic Acid Natural products CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 5
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 5
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- SRSXLGNVWSONIS-UHFFFAOYSA-M benzenesulfonate Chemical compound [O-]S(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-M 0.000 description 5
- 229920001577 copolymer Polymers 0.000 description 5
- 239000004310 lactic acid Substances 0.000 description 5
- 235000014655 lactic acid Nutrition 0.000 description 5
- 238000001459 lithography Methods 0.000 description 5
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 5
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- GKNWQHIXXANPTN-UHFFFAOYSA-M 1,1,2,2,2-pentafluoroethanesulfonate Chemical compound [O-]S(=O)(=O)C(F)(F)C(F)(F)F GKNWQHIXXANPTN-UHFFFAOYSA-M 0.000 description 4
- XBWQFDNGNOOMDZ-UHFFFAOYSA-N 1,1,2,2,3,3,3-heptafluoropropane-1-sulfonic acid Chemical compound OS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)F XBWQFDNGNOOMDZ-UHFFFAOYSA-N 0.000 description 4
- SEEJHICDPXGSRQ-UHFFFAOYSA-N 1,1,2,2,3,3,4,4,5,5,6-undecafluoro-6-(1,1,2,2,2-pentafluoroethyl)cyclohexane Chemical compound FC(F)(F)C(F)(F)C1(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C1(F)F SEEJHICDPXGSRQ-UHFFFAOYSA-N 0.000 description 4
- VMMIZNKPCLNGSS-UHFFFAOYSA-N 1-(2-oxo-2-phenylethyl)tetrahydrothiophenium Chemical compound C=1C=CC=CC=1C(=O)C[S+]1CCCC1 VMMIZNKPCLNGSS-UHFFFAOYSA-N 0.000 description 4
- 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 4
- WYGWHHGCAGTUCH-UHFFFAOYSA-N 2-[(2-cyano-4-methylpentan-2-yl)diazenyl]-2,4-dimethylpentanenitrile Chemical compound CC(C)CC(C)(C#N)N=NC(C)(C#N)CC(C)C WYGWHHGCAGTUCH-UHFFFAOYSA-N 0.000 description 4
- 125000004864 4-thiomethylphenyl group Chemical group 0.000 description 4
- ZYUZLEUJKZZXNN-UHFFFAOYSA-N C1=CC(CC(N)C(O)=O)=CC=C1OS(=O)(=O)C1=CC=C(C=CC=C2)C2=C1 Chemical group C1=CC(CC(N)C(O)=O)=CC=C1OS(=O)(=O)C1=CC=C(C=CC=C2)C2=C1 ZYUZLEUJKZZXNN-UHFFFAOYSA-N 0.000 description 4
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- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 4
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 4
- WYGWHHGCAGTUCH-ISLYRVAYSA-N V-65 Substances CC(C)CC(C)(C#N)\N=N\C(C)(C#N)CC(C)C WYGWHHGCAGTUCH-ISLYRVAYSA-N 0.000 description 4
- QVLLTVALUYGYIX-UHFFFAOYSA-N [4-[(2-methylpropan-2-yl)oxy]phenyl]-diphenylsulfanium Chemical compound C1=CC(OC(C)(C)C)=CC=C1[S+](C=1C=CC=CC=1)C1=CC=CC=C1 QVLLTVALUYGYIX-UHFFFAOYSA-N 0.000 description 4
- 150000001241 acetals Chemical group 0.000 description 4
- 125000003118 aryl group Chemical group 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- QDHFHIQKOVNCNC-UHFFFAOYSA-M butane-1-sulfonate Chemical compound CCCCS([O-])(=O)=O QDHFHIQKOVNCNC-UHFFFAOYSA-M 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- MGNZXYYWBUKAII-UHFFFAOYSA-N cyclohexa-1,3-diene Chemical compound C1CC=CC=C1 MGNZXYYWBUKAII-UHFFFAOYSA-N 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 description 4
- 125000003454 indenyl group Chemical group C1(C=CC2=CC=CC=C12)* 0.000 description 4
- LGRLWUINFJPLSH-UHFFFAOYSA-N methanide Chemical compound [CH3-] LGRLWUINFJPLSH-UHFFFAOYSA-N 0.000 description 4
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- 239000011259 mixed solution Substances 0.000 description 4
- 125000005636 nonafluorobutanesulfonate group Chemical group 0.000 description 4
- 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 4
- SUSQOBVLVYHIEX-UHFFFAOYSA-N phenylacetonitrile Chemical compound N#CCC1=CC=CC=C1 SUSQOBVLVYHIEX-UHFFFAOYSA-N 0.000 description 4
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical compound O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 4
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 4
- DOYSIZKQWJYULQ-UHFFFAOYSA-N 1,1,2,2,2-pentafluoro-n-(1,1,2,2,2-pentafluoroethylsulfonyl)ethanesulfonamide Chemical compound FC(F)(F)C(F)(F)S(=O)(=O)NS(=O)(=O)C(F)(F)C(F)(F)F DOYSIZKQWJYULQ-UHFFFAOYSA-N 0.000 description 3
- 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 3
- ZSXYJNYYDJTZPB-UHFFFAOYSA-N 1-(1,1-difluoro-2h-naphthalen-2-yl)ethanesulfonic acid Chemical compound C1=CC=C2C(F)(F)C(C(C)S(O)(=O)=O)C=CC2=C1 ZSXYJNYYDJTZPB-UHFFFAOYSA-N 0.000 description 3
- 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
- XGMDYIYCKWMWLY-UHFFFAOYSA-N 2,2,2-trifluoroethanesulfonic acid Chemical compound OS(=O)(=O)CC(F)(F)F XGMDYIYCKWMWLY-UHFFFAOYSA-N 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
- NRTKFSQKHCMEMO-UHFFFAOYSA-N 2-(methoxymethoxy)-n,n-bis[2-(methoxymethoxy)ethyl]ethanamine Chemical compound COCOCCN(CCOCOC)CCOCOC NRTKFSQKHCMEMO-UHFFFAOYSA-N 0.000 description 3
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 3
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- PSHKMPUSSFXUIA-UHFFFAOYSA-N n,n-dimethylpyridin-2-amine Chemical compound CN(C)C1=CC=CC=N1 PSHKMPUSSFXUIA-UHFFFAOYSA-N 0.000 description 1
- XTAZYLNFDRKIHJ-UHFFFAOYSA-N n,n-dioctyloctan-1-amine Chemical compound CCCCCCCCN(CCCCCCCC)CCCCCCCC XTAZYLNFDRKIHJ-UHFFFAOYSA-N 0.000 description 1
- OOHAUGDGCWURIT-UHFFFAOYSA-N n,n-dipentylpentan-1-amine Chemical compound CCCCCN(CCCCC)CCCCC OOHAUGDGCWURIT-UHFFFAOYSA-N 0.000 description 1
- QVPWDPDVDVVXIB-UHFFFAOYSA-N n-(2-hydroxyethyl)pyridine-4-carboxamide Chemical compound OCCNC(=O)C1=CC=NC=C1 QVPWDPDVDVVXIB-UHFFFAOYSA-N 0.000 description 1
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 description 1
- OBYVIBDTOCAXSN-UHFFFAOYSA-N n-butan-2-ylbutan-2-amine Chemical compound CCC(C)NC(C)CC OBYVIBDTOCAXSN-UHFFFAOYSA-N 0.000 description 1
- GMTCPFCMAHMEMT-UHFFFAOYSA-N n-decyldecan-1-amine Chemical compound CCCCCCCCCCNCCCCCCCCCC GMTCPFCMAHMEMT-UHFFFAOYSA-N 0.000 description 1
- MJCJUDJQDGGKOX-UHFFFAOYSA-N n-dodecyldodecan-1-amine Chemical compound CCCCCCCCCCCCNCCCCCCCCCCCC MJCJUDJQDGGKOX-UHFFFAOYSA-N 0.000 description 1
- SMBYUOXUISCLCF-UHFFFAOYSA-N n-ethyl-n-methylpropan-1-amine Chemical compound CCCN(C)CC SMBYUOXUISCLCF-UHFFFAOYSA-N 0.000 description 1
- NJWMENBYMFZACG-UHFFFAOYSA-N n-heptylheptan-1-amine Chemical compound CCCCCCCNCCCCCCC NJWMENBYMFZACG-UHFFFAOYSA-N 0.000 description 1
- NQYKSVOHDVVDOR-UHFFFAOYSA-N n-hexadecylhexadecan-1-amine Chemical compound CCCCCCCCCCCCCCCCNCCCCCCCCCCCCCCCC NQYKSVOHDVVDOR-UHFFFAOYSA-N 0.000 description 1
- PXSXRABJBXYMFT-UHFFFAOYSA-N n-hexylhexan-1-amine Chemical compound CCCCCCNCCCCCC PXSXRABJBXYMFT-UHFFFAOYSA-N 0.000 description 1
- DYFFAVRFJWYYQO-UHFFFAOYSA-N n-methyl-n-phenylaniline Chemical compound C=1C=CC=CC=1N(C)C1=CC=CC=C1 DYFFAVRFJWYYQO-UHFFFAOYSA-N 0.000 description 1
- MFHKEJIIHDNPQE-UHFFFAOYSA-N n-nonylnonan-1-amine Chemical compound CCCCCCCCCNCCCCCCCCC MFHKEJIIHDNPQE-UHFFFAOYSA-N 0.000 description 1
- JACMPVXHEARCBO-UHFFFAOYSA-N n-pentylpentan-1-amine Chemical compound CCCCCNCCCCC JACMPVXHEARCBO-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
- NTNWKDHZTDQSST-UHFFFAOYSA-N naphthalene-1,2-diamine Chemical compound C1=CC=CC2=C(N)C(N)=CC=C21 NTNWKDHZTDQSST-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
- 229960003512 nicotinic acid Drugs 0.000 description 1
- 235000001968 nicotinic acid Nutrition 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- FJDUDHYHRVPMJZ-UHFFFAOYSA-N nonan-1-amine Chemical compound CCCCCCCCCN FJDUDHYHRVPMJZ-UHFFFAOYSA-N 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- IOQPZZOEVPZRBK-UHFFFAOYSA-N octan-1-amine Chemical compound CCCCCCCCN IOQPZZOEVPZRBK-UHFFFAOYSA-N 0.000 description 1
- 125000005375 organosiloxane group Chemical group 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 150000007978 oxazole derivatives Chemical class 0.000 description 1
- LCJLCKSXBYGANE-UHFFFAOYSA-N oxolan-2-ylmethyl 3-[bis(2-acetyloxyethyl)amino]propanoate Chemical compound CC(=O)OCCN(CCOC(C)=O)CCC(=O)OCC1CCCO1 LCJLCKSXBYGANE-UHFFFAOYSA-N 0.000 description 1
- 125000001037 p-tolyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])([H])[H] 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 229940100684 pentylamine Drugs 0.000 description 1
- 229940083254 peripheral vasodilators imidazoline derivative Drugs 0.000 description 1
- 229940083251 peripheral vasodilators purine derivative Drugs 0.000 description 1
- 150000005053 phenanthridines Chemical class 0.000 description 1
- 150000002988 phenazines Chemical class 0.000 description 1
- COLNVLDHVKWLRT-UHFFFAOYSA-N phenylalanine Natural products OC(=O)C(N)CC1=CC=CC=C1 COLNVLDHVKWLRT-UHFFFAOYSA-N 0.000 description 1
- RMVRSNDYEFQCLF-UHFFFAOYSA-O phenylsulfanium Chemical compound [SH2+]C1=CC=CC=C1 RMVRSNDYEFQCLF-UHFFFAOYSA-O 0.000 description 1
- LFSXCDWNBUNEEM-UHFFFAOYSA-N phthalazine Chemical class C1=NN=CC2=CC=CC=C21 LFSXCDWNBUNEEM-UHFFFAOYSA-N 0.000 description 1
- XKJCHHZQLQNZHY-UHFFFAOYSA-N phthalimide Chemical compound C1=CC=C2C(=O)NC(=O)C2=C1 XKJCHHZQLQNZHY-UHFFFAOYSA-N 0.000 description 1
- 150000004885 piperazines Chemical class 0.000 description 1
- 150000003053 piperidines Chemical class 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
- 239000001816 polyoxyethylene sorbitan tristearate Substances 0.000 description 1
- 235000010988 polyoxyethylene sorbitan tristearate Nutrition 0.000 description 1
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 description 1
- QLNJFJADRCOGBJ-UHFFFAOYSA-N propionamide Chemical compound CCC(N)=O QLNJFJADRCOGBJ-UHFFFAOYSA-N 0.000 description 1
- 229940080818 propionamide Drugs 0.000 description 1
- ILVGAIQLOCKNQA-UHFFFAOYSA-N propyl 2-hydroxypropanoate Chemical compound CCCOC(=O)C(C)O ILVGAIQLOCKNQA-UHFFFAOYSA-N 0.000 description 1
- 125000001042 pteridinyl group Chemical class N1=C(N=CC2=NC=CN=C12)* 0.000 description 1
- 150000003212 purines Chemical class 0.000 description 1
- 150000003216 pyrazines Chemical class 0.000 description 1
- 150000003217 pyrazoles Chemical class 0.000 description 1
- 150000003218 pyrazolidines Chemical class 0.000 description 1
- 150000003219 pyrazolines Chemical class 0.000 description 1
- 150000004892 pyridazines Chemical class 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- DVECLMOWYVDJRM-UHFFFAOYSA-N pyridine-3-sulfonic acid Chemical compound OS(=O)(=O)C1=CC=CN=C1 DVECLMOWYVDJRM-UHFFFAOYSA-N 0.000 description 1
- 150000003222 pyridines Chemical class 0.000 description 1
- ZDYVRSLAEXCVBX-UHFFFAOYSA-N pyridinium p-toluenesulfonate Chemical compound C1=CC=[NH+]C=C1.CC1=CC=C(S([O-])(=O)=O)C=C1 ZDYVRSLAEXCVBX-UHFFFAOYSA-N 0.000 description 1
- 229940083082 pyrimidine derivative acting on arteriolar smooth muscle Drugs 0.000 description 1
- 150000003230 pyrimidines Chemical class 0.000 description 1
- 150000003233 pyrroles Chemical class 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
- 150000003235 pyrrolidines Chemical class 0.000 description 1
- ZVJHJDDKYZXRJI-UHFFFAOYSA-N pyrroline Natural products C1CC=NC1 ZVJHJDDKYZXRJI-UHFFFAOYSA-N 0.000 description 1
- 150000003236 pyrrolines Chemical class 0.000 description 1
- 125000002294 quinazolinyl group Chemical class N1=C(N=CC2=CC=CC=C12)* 0.000 description 1
- QZZYYBQGTSGDPP-UHFFFAOYSA-N quinoline-3-carbonitrile Chemical compound C1=CC=CC2=CC(C#N)=CN=C21 QZZYYBQGTSGDPP-UHFFFAOYSA-N 0.000 description 1
- 150000003248 quinolines Chemical class 0.000 description 1
- 150000003252 quinoxalines Chemical class 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- BHRZNVHARXXAHW-UHFFFAOYSA-N sec-butylamine Chemical compound CCC(C)N BHRZNVHARXXAHW-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 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
- 238000004528 spin coating Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 229940066771 systemic antihistamines piperazine derivative Drugs 0.000 description 1
- YBRBMKDOPFTVDT-UHFFFAOYSA-N tert-butylamine Chemical compound CC(C)(C)N YBRBMKDOPFTVDT-UHFFFAOYSA-N 0.000 description 1
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 1
- 125000003698 tetramethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 150000007979 thiazole derivatives Chemical class 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- ABVVEAHYODGCLZ-UHFFFAOYSA-N tridecan-1-amine Chemical compound CCCCCCCCCCCCCN ABVVEAHYODGCLZ-UHFFFAOYSA-N 0.000 description 1
- SWZDQOUHBYYPJD-UHFFFAOYSA-N tridodecylamine Chemical compound CCCCCCCCCCCCN(CCCCCCCCCCCC)CCCCCCCCCCCC SWZDQOUHBYYPJD-UHFFFAOYSA-N 0.000 description 1
- 125000002827 triflate group Chemical group FC(S(=O)(=O)O*)(F)F 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
- NRZWQKGABZFFKE-UHFFFAOYSA-N trimethylsulfonium Chemical compound C[S+](C)C NRZWQKGABZFFKE-UHFFFAOYSA-N 0.000 description 1
- PHYFQTYBJUILEZ-IUPFWZBJSA-N triolein Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(OC(=O)CCCCCCC\C=C/CCCCCCCC)COC(=O)CCCCCCC\C=C/CCCCCCCC PHYFQTYBJUILEZ-IUPFWZBJSA-N 0.000 description 1
- ODHXBMXNKOYIBV-UHFFFAOYSA-N triphenylamine Chemical compound C1=CC=CC=C1N(C=1C=CC=CC=1)C1=CC=CC=C1 ODHXBMXNKOYIBV-UHFFFAOYSA-N 0.000 description 1
- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 description 1
- ZMOJTPABCOWEOS-UHFFFAOYSA-N tris(4-tert-butylphenyl)sulfanium Chemical compound C1=CC(C(C)(C)C)=CC=C1[S+](C=1C=CC(=CC=1)C(C)(C)C)C1=CC=C(C(C)(C)C)C=C1 ZMOJTPABCOWEOS-UHFFFAOYSA-N 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
- PNXQORBBJALXKA-UHFFFAOYSA-N tris[4-[(2-methylpropan-2-yl)oxy]phenyl]sulfanium Chemical compound C1=CC(OC(C)(C)C)=CC=C1[S+](C=1C=CC(OC(C)(C)C)=CC=1)C1=CC=C(OC(C)(C)C)C=C1 PNXQORBBJALXKA-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
- 230000004304 visual acuity Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/0271—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers
- H01L21/0273—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers characterised by the treatment of photoresist layers
-
- 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
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/0271—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers
- H01L21/0273—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers characterised by the treatment of photoresist layers
- H01L21/0274—Photolithographic processes
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Materials For Photolithography (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Description
で表わされるモノマー単位を1種あるいは2種以上を含有し(ただし必ずtが1以上である単位を含む)、
更に下記一般式(2)
で表わされるモノマー単位を1種あるいは2種以上
及び/又は下記一般式(3)
で表わされるモノマー単位を1種あるいは2種以上含有し、上記一般式(1)〜(3)のモノマーの合計が、ポリマーを構成する全モノマー単位の95モル%以上を占め、かつ上記一般式(1)で表わされるモノマーが2種以上含まれる場合には、tが1以上のものが占める割合が上記一般式(1)全体に対して70モル%以上であり、更に上記一般式(2)と上記一般式(3)で表わされるモノマー単位の合計がポリマーを構成する全モノマー単位に対し5〜30モル%である重量平均分子量が4,000〜7,000であるポリマーに対し、上記一般式(1)のモノマー単位のフェノール性水酸基が一部酸分解性保護基により保護されているポリマーをベースポリマーとして含有する化学増幅型ポジ型レジスト組成物を被加工基板上に塗布し、塗布膜に残存する過剰の溶剤成分を加熱により除去してレジスト膜を得る工程と、高エネルギー線をパターン露光する工程と、必要に応じて露光後加熱処理を行った後、現像液を用いて現像する工程とを含み、被加工基板上で最小ライン幅あるいは最小スペース幅が65nm以下のパターンを形成することを特徴とするレジストパターンの形成方法である(請求項1)。
で表わされるアセタール基であることが好ましい(請求項3)。
上記のアセタール基を酸分解性保護基として採用することによって、より高解像性を得ることができる。
で表わされるモノマー単位を1種あるいは2種以上を含有し(ただし必ずtが1以上である単位を含む)、
更に一般式(2)
及び/又は一般式(3)
で表わされるモノマー単位を1種あるいは2種以上含有し、重量平均分子量が4,000〜7,000であるポリマーに対し、上記一般式(1)のモノマー単位のフェノール性水酸基が一部酸分解性保護基により保護されているベースポリマーである。
で表わされるアセタール基が、高い解像性を与えることから好ましく使用できる。一般式(4)中のYは、炭素数1から30の直鎖、分岐、環状(多環式のものを含む)のアルキル基であるが、炭素数7〜30の多環式アルキル基が含まれることが好ましい。またYが多環式アルキル基を含む場合、該多環式環構造を構成する2級炭素とアセタール酸素との間で結合を形成していることが好ましい。なぜなら、環構造の3級炭素上で結合している場合、高分子化合物が不安定な化合物となり、レジスト材料として保存安定性に欠け、解像力も劣化する。逆にYが炭素数1以上の直鎖のアルキル基を介在した1級炭素上で結合した場合、高分子化合物のガラス転移温度(Tg)が低下し、現像後のレジストパターンがベークにより形状不良を起こすことがある。
で示されるアセタール化剤を、トリエチルアミン等の塩基性化合物の存在下に滴下していく方法である。この際の反応温度は、−20〜50℃、反応時間としては0.2〜10時間、好ましくは0.5〜5時間が目安であるが、これら製造方法に限定されるわけではない。
更に、プロピレングリコールアルキルエーテルアセテートと乳酸アルキルエステルおよび/またはプロピレングリコールモノアルキルエーテルの混合溶剤を溶剤として用いる際には、その合計量が全溶剤に対して好ましくは50質量%以上、更に好ましくは80%以上として使用される。この場合、更に好ましくは、プロピレングリコールアルキルエーテルアセテートを20〜95質量%、乳酸アルキルエステルおよび/またはプロピレングリコールモノアルキルエーテルを5〜80質量%の割合とすることが好ましく、その比は上述のように酸発生剤添加量等を勘案して決定される。プロピレングリコールアルキルエーテルアセテートが少ないと、塗布性劣化等の問題があり、多すぎると溶解性不十分、パーティクル、異物の発生の問題がある。乳酸アルキルエステルおよび/またはプロピレングリコールモノアルキルエーテルが少ないと溶解性不十分、パーティクル、異物の増加等の問題があり、多すぎると粘度が高くなり塗布性が悪くなる上、保存安定性の劣化等の問題がある。
これら溶剤の添加量は化学増幅ポジ型レジスト材料の固形分100質量部に対して300〜2,000質量部、好ましくは400〜1,000質量部であるが、既存の成膜方法で可能な濃度であればこれに限定されるものではない。
N(X’)n(Y’)3−n (B)−1
式中、n=1、2、3である。側鎖X’は同一でも異なっていても良く、下記一般式(X’)−1〜(X’)−3
ポリマーの分子量の測定は、東ソー(株)製HLC−8120GPCを用い、ポリスチレンを標準サンプルとしたゲルパーミッションクロマトグラフィーにより行った。
3Lのフラスコにアセトキシスチレン407.5g、アセナフチレン42.5g、溶媒としてトルエンを1275g添加した。この反応容器を窒素雰囲気下、−70℃まで冷却し、減圧脱気、窒素フローを3回繰り返した。室温まで昇温後、重合開始剤として2,2´−アゾビス(2,4−ジメチルバレロニトリル)(和光純薬製V−65)を34.7g加え、55℃まで昇温後、40時間反応を行った。この反応溶液にメタノール970gと水180gの混合溶液を攪拌中滴下し、30分後に下層(ポリマー層)を減圧濃縮し、このポリマー層にメタノール0.45L、テトラヒドロフラン0.54Lに再度溶解し、トリエチルアミン160g、水30gを加え、60℃に加温して40時間脱保護反応を行った。この脱保護反応溶液を減圧濃縮し、濃縮液にメタノール548gとアセトン112gを加え溶液化した。ここに攪拌中ヘキサンを990g滴下し、30分後に下層(ポリマー層)にテトラヒドロフラン300gを加え、ここに攪拌中ヘキサンを1030g滴下し、30分後に下層(ポリマー層)を減圧濃縮した。本ポリマー溶液を酢酸82gを用いて中和し、反応溶液を濃縮後、アセトン0.3Lに溶解し、上記と同様に水10Lに沈殿させ、濾過、乾燥を行い、白色重合体280gを得た。得られた重合体を13C,1H−NMR、及び、GPC測定したところ、以下の分析結果となった。
共重合組成比
ヒドロキシスチレン:アセナフチレン=89.3:10.7
重量平均分子量(Mw)=5000
分子量分布(Mw/Mn)=1.63
これを(poly−1)とする。
3Lのフラスコにアセトキシスチレン403.2g、アセナフチレン46.8g、溶媒としてトルエンを1800g添加した。この反応容器を窒素雰囲気下、−70℃まで冷却し、減圧脱気、窒素フローを3回繰り返した。室温まで昇温後、重合開始剤として2,2´−アゾビス(2,4−ジメチルバレロニトリル)(和光純薬製V−65)34.7g加え、55℃まで昇温後、40時間反応を行った。この反応溶液にメタノール1600gと水370gの混合溶液を攪拌中滴下し、30分後に下層(ポリマー層)を減圧濃縮し、このポリマー層にメタノール0.48L、テトラヒドロフラン0.54Lに再度溶解し、トリエチルアミン160g、水30gを加え、60℃に加温して40時間脱保護反応を行った。この脱保護反応溶液を減圧濃縮し、濃縮液にメタノール548gとアセトン112gを加え溶液化した。ここに攪拌中ヘキサンを990g滴下し、30分後に下層(ポリマー層)にテトラヒドロフラン225gを加え、ここに攪拌中ヘキサンを1030g滴下し、30分後に下層(ポリマー層)を減圧濃縮した。本ポリマー溶液を酢酸82gを用いて中和し、反応溶液を濃縮後、アセトン0.3Lに溶解し、上記と同様に水10Lに沈殿させ、濾過、乾燥を行い、白色重合体285gを得た。得られた重合体を13C,1H−NMR、及び、GPC測定したところ、以下の分析結果となった。
共重合組成比
ヒドロキシスチレン:アセナフチレン=87.6:12.4
重量平均分子量(Mw)=4000
分子量分布(Mw/Mn)=1.62
これを(poly−2)とする。
1Lのフラスコにアセトキシスチレン315.8g、インデン134.6g、溶媒としてトルエンを675g添加した。この反応容器を窒素雰囲気下、−70℃まで冷却し、減圧脱気、窒素フローを3回繰り返した。室温まで昇温後、重合開始剤として2,2´−アゾビス(2,4−ジメチルバレロニトリル)(和光純薬製V−65)38.5g加え、50℃まで昇温後、40時間反応を行った。この反応溶液にメタノール968gと水120gの混合溶液を攪拌中滴下し、30分後に下層(ポリマー層)を減圧濃縮し、このポリマー層にメタノール0.48L、テトラヒドロフラン0.54Lに再度溶解し、トリエチルアミン160g、水30gを加え、60℃に加温して40時間脱保護反応を行った。この脱保護反応溶液を減圧濃縮し、濃縮液にメタノール548gとアセトン112gを加え溶液化した。ここに攪拌中ヘキサンを990g滴下し、30分後に下層(ポリマー層)にテトラヒドロフラン375gを加え、ここに攪拌中ヘキサンを1030g滴下し、30分後に下層(ポリマー層)を減圧濃縮した。本ポリマー溶液を酢酸82gを用いて中和し、反応溶液を濃縮後、アセトン0.3Lに溶解し、上記と同様に水10Lに沈殿させ、濾過、乾燥を行い、白色重合体170gを得た。得られた重合体を13C,1H−NMR、及び、GPC測定したところ、以下の分析結果となった。
共重合組成比
ヒドロキシスチレン:インデン=89.1:10.9
重量平均分子量(Mw)=4100
分子量分布(Mw/Mn)=1.61
これを(poly−3)とする。
3Lのフラスコにアセトキシスチレン407.5g、アセナフチレン42.5g、溶媒としてトルエンを950g添加した。この反応容器を窒素雰囲気下、−70℃まで冷却し、減圧脱気、窒素フローを3回繰り返した。室温まで昇温後、重合開始剤としてAIBNを22.9g加え、50℃まで昇温後、40時間反応させた。この反応溶液を1/2まで濃縮し、メタノール5.0L、溶液中に沈殿させ、得られた白色固体を濾過後、40℃で減圧乾燥し、白色重合体282gを得た。このポリマーをメタノール0.5L、テトラヒドロフラン0.6Lに再度溶解し、トリエチルアミン160g、水30gを加え、60℃に加温して脱保護反応を行い、酢酸を用いて中和した。反応溶液を濃縮後、アセトン0.5Lに溶解し、上記と同様に水10Lに沈殿させ、濾過、乾燥を行い、白色重合体182gを得た。得られた重合体を13C,1H−NMR、及び、GPC測定したところ、以下の分析結果となった。
共重合組成比
ヒドロキシスチレン:アセナフチレン=89.3:10.7
重量平均分子量(Mw)=6800
分子量分布(Mw/Mn)=1.75
これを(poly−4)とする。
1Lのフラスコにアセトキシスチレン293.3g、インデン206.7g、溶媒としてトルエンを700g添加した。この反応容器を窒素雰囲気下、−70℃まで冷却し、減圧脱気、窒素フローを3回繰り返した。室温まで昇温後、重合開始剤としてAIBNを14.6g加え、50℃まで昇温後、40時間反応させた。この反応溶液を1/2まで濃縮し、メタノール5.0L、溶液中に沈殿させ、得られた白色固体を濾過後、40℃で減圧乾燥し、白色重合体260gを得た。このポリマーをメタノール0.4L、テトラヒドロフラン0.5Lに再度溶解し、トリエチルアミン140g、水30gを加え、60℃に加温して脱保護反応を行い、酢酸を用いて中和した。反応溶液を濃縮後、アセトン0.5Lに溶解し、上記と同様に水10Lに沈殿させ、濾過、乾燥を行い、白色重合体175gを得た。得られた重合体を13C,1H−NMR、及び、GPC測定したところ、以下の分析結果となった。
共重合組成比
ヒドロキシスチレン:インデン=89.0:11.0
重量平均分子量(Mw)=6800
分子量分布(Mw/Mn)=1.81
これを(poly−5)とする。
3Lのフラスコにアセトキシスチレン268.8g、アセナフチレン31.2g、溶媒としてトルエンを1200g添加した。この反応容器を窒素雰囲気下、−70℃まで冷却し、減圧脱気、窒素フローを3回繰り返した。室温まで昇温後、重合開始剤として2,2´−アゾビス(2,4−ジメチルバレロニトリル)(和光純薬製V−65)23.1g加え、45℃まで昇温後、20時間反応させ、その後55℃まで昇温後、20時間反応させる2段階加温重合を行った。この反応溶液にメタノール700gと水150gの混合溶液を攪拌中滴下し、30分後に下層(ポリマー層)を減圧濃縮し、このポリマー層にメタノール0.32L、テトラヒドロフラン0.36Lに再度溶解し、トリエチルアミン108g、水21gを加え、60℃に加温して40時間脱保護反応を行った。この脱保護反応溶液を減圧濃縮し、濃縮液にメタノール365gとアセトン75gを加え溶液化した。ここに攪拌中ヘキサンを990g滴下し、30分後に下層(ポリマー層)を減圧濃縮した。本ポリマー溶液を酢酸65gを用いて中和し、反応溶液を濃縮後、アセトン0.15Lに溶解し、上記と同様に水10Lに沈殿させ、濾過、乾燥を行い、白色重合体184gを得た。得られた重合体を13C,1H−NMR、及び、GPC測定したところ、以下の分析結果となった。
共重合組成比
ヒドロキシスチレン:アセナフチレン=87.9:12.1
重量平均分子量(Mw)=3000
分子量分布(Mw/Mn)=1.58
これを(poly−6)とする。
1Lのフラスコにポリヒドロキシスチレン、アセナフチレン共重合体(poly−1)50.0g、溶媒としてテトラヒドロフランを400g添加した。この反応容器を窒素雰囲気下、5℃まで冷却し、トリエチルアミン31.0gを添加後、アセタール化剤−A:14.9gを1時間かけて滴下注入した。室温まで昇温後4時間反応させた。この反応溶液を濃縮し、アセトン200gに溶解後、酢酸を用いて中和洗浄のため、水7.0Lの溶液中に晶出沈殿させ、得られた白色固体を濾過後、40℃で減圧乾燥し、白色重合体54.0gを得た。得られた重合体を13C,1H−NMR、及び、GPC測定したところ、以下の分析結果となった。
共重合組成比
ヒドロキシスチレン:アセナフチレン:4−メトキシイソブトキシスチレン=69.9:10.7:19.4
重量平均分子量(Mw)=6900
分子量分布(Mw/Mn)=1.76
これを(poly−7)とする。
ヒドロキシスチレン:アセナフチレン:4−メトキシイソブトキシスチレン=70.8:10.7:18.5
重量平均分子量(Mw)=7800
分子量分布(Mw/Mn)=1.72
1Lのフラスコにポリヒドロキシスチレン、アセナフチレン共重合体(poly−1)200.0g、溶媒としてテトラヒドロフランを1800g添加した。この反応容器を窒素雰囲気下、25℃付近で、トリエチルアミン120gを添加後、アセタール化剤−B:50.4gを30分間かけて滴下注入した。室温のまま3時間反応させた。この反応溶液を濃縮し、アセトン400gに溶解後、酢酸を用いて中和洗浄のため、、水10.0Lの溶液中に晶出沈殿させ、得られた白色固体を濾過後、40℃で減圧乾燥し、白色重合体211gを得た。得られた重合体を13C,1H−NMR、及び、GPC測定したところ、以下の分析結果となった。
共重合組成比
ヒドロキシスチレン:アセナフチレン:4−トリシクロデカンオキシイソブトキシスチレン=78.4:10.8:10.8
重量平均分子量(Mw)=6400
分子量分布(Mw/Mn)=1.68
これを(poly−8)とする。
酸発生剤
界面活性剤A:KH−20(旭硝子社製)
溶剤A:プロピレングリコールメチルエーテルアセテート
溶剤B:乳酸エチル
0.02μmのラインアンドスペースのトップとボトムを1:1で解像する露光量を最適露光量(感度:Eop)として、この露光量において分離し、加えてレジストパターンがパターン倒れなく解像しているラインアンドスペースの最小線幅を評価レジストの解像度とした。また、解像したレジストパターンの形状は、走査型電子顕微鏡を用いてレジスト断面を観察した。
Claims (4)
- 少なくとも、下記一般式(1)
で表わされるモノマー単位を1種あるいは2種以上を含有し(ただし必ずtが1以上である単位を含む)、
更に下記一般式(2)
で表わされるモノマー単位を1種あるいは2種以上
及び/又は下記一般式(3)
で表わされるモノマー単位を1種あるいは2種以上含有し、
上記一般式(1)のモノマー単位の前記フェノール性水酸基が一部酸分解性保護基により保護されているポリマーであって、
上記一般式(1)〜(3)のモノマーの合計が、ポリマーを構成する全モノマー単位の95モル%以上を占め、かつ、上記一般式(1)で表わされるモノマーが1種含まれる場合には、tは1以上であり、上記一般式(1)で表わされるモノマーが2種以上含まれる場合には、tが1以上のものが占める割合が上記一般式(1)全体に対して70モル%以上であり、更に上記一般式(2)と上記一般式(3)で表わされるモノマー単位の合計がポリマーを構成する全モノマー単位に対し5〜30モル%であり、
重量平均分子量が4,000〜7,000であるポリマーをベースポリマーとして含有する化学増幅型ポジ型レジスト組成物を被加工基板上に塗布し、塗布膜に残存する過剰の溶剤成分を加熱により除去してレジスト膜を得る工程と、高エネルギー線をパターン露光する工程と、現像液を用いて現像する工程とを含み、被加工基板上で最小ライン幅あるいは最小スペース幅が65nm以下のパターンを形成することを特徴とするレジストパターンの形成方法。 - 上記重量平均分子量は4,500〜5,500である請求項1記載のレジストパターンの形成方法。
- 請求項1乃至3のいずれかに記載のレジストパターンの形成方法により、マスクブランク上にレジストパターンを形成してフォトマスクブランクを加工する工程を含む、パターンルールが65nm以下の半導体装置の製造に用いるフォトマスクの製造方法。
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EP4325292A1 (en) | 2022-08-10 | 2024-02-21 | Shin-Etsu Chemical Co., Ltd. | Chemically amplified positive resist composition and resist pattern forming process |
EP4343433A1 (en) | 2022-09-22 | 2024-03-27 | Shin-Etsu Chemical Co., Ltd. | Polymer, chemically amplified positive resist composition, resist patterning process, and mask blank |
EP4455118A1 (en) | 2023-03-17 | 2024-10-30 | Shin-Etsu Chemical Co., Ltd. | Acetal modifier, polymer, chemically amplified positive resist composition, and resist pattern forming process |
EP4485076A1 (en) | 2023-06-28 | 2025-01-01 | Shin-Etsu Chemical Co., Ltd. | Acetal modifier, polymer, chemically amplified positive resist composition, and resist pattern forming process |
EP4513270A1 (en) | 2023-08-09 | 2025-02-26 | Shin-Etsu Chemical Co., Ltd. | Chemically amplified positive resist composition and resist pattern forming process |
Also Published As
Publication number | Publication date |
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CN101625523B (zh) | 2012-09-19 |
US8110335B2 (en) | 2012-02-07 |
US20100009271A1 (en) | 2010-01-14 |
TWI435172B (zh) | 2014-04-21 |
EP2146247A1 (en) | 2010-01-20 |
JP2010039474A (ja) | 2010-02-18 |
CN101625523A (zh) | 2010-01-13 |
KR101446814B1 (ko) | 2014-10-01 |
KR20100007795A (ko) | 2010-01-22 |
SG158797A1 (en) | 2010-02-26 |
EP2146247B1 (en) | 2015-04-15 |
TW201015218A (en) | 2010-04-16 |
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