JP6137483B2 - 縮合系ポリマーを有するeuvリソグラフィー用レジスト下層膜形成組成物 - Google Patents
縮合系ポリマーを有するeuvリソグラフィー用レジスト下層膜形成組成物 Download PDFInfo
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- JP6137483B2 JP6137483B2 JP2013526933A JP2013526933A JP6137483B2 JP 6137483 B2 JP6137483 B2 JP 6137483B2 JP 2013526933 A JP2013526933 A JP 2013526933A JP 2013526933 A JP2013526933 A JP 2013526933A JP 6137483 B2 JP6137483 B2 JP 6137483B2
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- 238000001900 extreme ultraviolet lithography Methods 0.000 title claims description 79
- 229920000642 polymer Polymers 0.000 title claims description 66
- 239000000203 mixture Substances 0.000 title claims description 57
- 238000009833 condensation Methods 0.000 title description 2
- 230000005494 condensation Effects 0.000 title 1
- 125000004432 carbon atom Chemical group C* 0.000 claims description 96
- 150000001875 compounds Chemical class 0.000 claims description 89
- 125000000217 alkyl group Chemical group 0.000 claims description 39
- 239000002253 acid Substances 0.000 claims description 29
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 25
- 125000005843 halogen group Chemical group 0.000 claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 23
- 239000000758 substrate Substances 0.000 claims description 22
- 239000002904 solvent Substances 0.000 claims description 21
- 125000003545 alkoxy group Chemical group 0.000 claims description 19
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 19
- 239000007787 solid Substances 0.000 claims description 19
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 18
- 125000003342 alkenyl group Chemical group 0.000 claims description 16
- 125000004414 alkyl thio group Chemical group 0.000 claims description 15
- 125000002947 alkylene group Chemical group 0.000 claims description 15
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 15
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 15
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 15
- 239000004065 semiconductor Substances 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 125000004653 anthracenylene group Chemical group 0.000 claims description 11
- 125000004957 naphthylene group Chemical group 0.000 claims description 11
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 claims description 11
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 10
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 8
- 238000004132 cross linking Methods 0.000 claims description 7
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 7
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 7
- 125000002228 disulfide group Chemical group 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 238000001459 lithography Methods 0.000 claims description 4
- GTDPSWPPOUPBNX-UHFFFAOYSA-N ac1mqpva Chemical compound CC12C(=O)OC(=O)C1(C)C1(C)C2(C)C(=O)OC1=O GTDPSWPPOUPBNX-UHFFFAOYSA-N 0.000 claims description 3
- 125000006158 tetracarboxylic acid group Chemical group 0.000 claims description 3
- 150000000000 tetracarboxylic acids Chemical class 0.000 claims description 3
- 239000010408 film Substances 0.000 description 116
- -1 benzyl) -hydantoin Chemical class 0.000 description 28
- 239000000243 solution Substances 0.000 description 11
- FTOAOBMCPZCFFF-UHFFFAOYSA-N 5,5-diethylbarbituric acid Chemical compound CCC1(CC)C(=O)NC(=O)NC1=O FTOAOBMCPZCFFF-UHFFFAOYSA-N 0.000 description 10
- 238000001312 dry etching Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 6
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 6
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- 239000003513 alkali Substances 0.000 description 6
- 239000002585 base Substances 0.000 description 6
- HTZCNXWZYVXIMZ-UHFFFAOYSA-M benzyl(triethyl)azanium;chloride Chemical compound [Cl-].CC[N+](CC)(CC)CC1=CC=CC=C1 HTZCNXWZYVXIMZ-UHFFFAOYSA-M 0.000 description 6
- 238000004090 dissolution Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 description 6
- 229940091173 hydantoin Drugs 0.000 description 6
- WFCOXVISFBRIKN-UHFFFAOYSA-N 1,3-bis(oxiran-2-ylmethyl)-1,3,5-triazinane-2,4,6-trione Chemical compound O=C1N(CC2OC2)C(=O)NC(=O)N1CC1CO1 WFCOXVISFBRIKN-UHFFFAOYSA-N 0.000 description 5
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- 230000035945 sensitivity Effects 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 239000004094 surface-active agent Substances 0.000 description 5
- 239000010409 thin film Substances 0.000 description 5
- FJKROLUGYXJWQN-UHFFFAOYSA-N 4-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 description 4
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 4
- 238000000206 photolithography Methods 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000011148 porous material Substances 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
- 238000003786 synthesis reaction Methods 0.000 description 4
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 4
- XGQJGMGAMHFMAO-UHFFFAOYSA-N 1,3,4,6-tetrakis(methoxymethyl)-3a,6a-dihydroimidazo[4,5-d]imidazole-2,5-dione Chemical compound COCN1C(=O)N(COC)C2C1N(COC)C(=O)N2COC XGQJGMGAMHFMAO-UHFFFAOYSA-N 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-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
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000004147 Sorbitan trioleate Substances 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- NEPKLUNSRVEBIX-UHFFFAOYSA-N bis(oxiran-2-ylmethyl) benzene-1,4-dicarboxylate Chemical compound C=1C=C(C(=O)OCC2OC2)C=CC=1C(=O)OCC1CO1 NEPKLUNSRVEBIX-UHFFFAOYSA-N 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- WJRBRSLFGCUECM-UHFFFAOYSA-N hydantoin Chemical compound O=C1CNC(=O)N1 WJRBRSLFGCUECM-UHFFFAOYSA-N 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000006254 rheological additive Substances 0.000 description 3
- 235000019337 sorbitan trioleate Nutrition 0.000 description 3
- 229960000391 sorbitan trioleate Drugs 0.000 description 3
- 125000001424 substituent group Chemical group 0.000 description 3
- UWFRVQVNYNPBEF-UHFFFAOYSA-N 1-(2,4-dimethylphenyl)propan-1-one Chemical compound CCC(=O)C1=CC=C(C)C=C1C UWFRVQVNYNPBEF-UHFFFAOYSA-N 0.000 description 2
- KQEJGXLRINKCST-UHFFFAOYSA-N 1-methyl-3,5-bis(oxiran-2-ylmethyl)-1,3,5-triazinane-2,4,6-trione Chemical compound O=C1N(CC2OC2)C(=O)N(C)C(=O)N1CC1CO1 KQEJGXLRINKCST-UHFFFAOYSA-N 0.000 description 2
- LMOSYFZLPBHEOW-UHFFFAOYSA-N 2,5-dichloroterephthalic acid Chemical compound OC(=O)C1=CC(Cl)=C(C(O)=O)C=C1Cl LMOSYFZLPBHEOW-UHFFFAOYSA-N 0.000 description 2
- OYFRNYNHAZOYNF-UHFFFAOYSA-N 2,5-dihydroxyterephthalic acid Chemical compound OC(=O)C1=CC(O)=C(C(O)=O)C=C1O OYFRNYNHAZOYNF-UHFFFAOYSA-N 0.000 description 2
- XLLIQLLCWZCATF-UHFFFAOYSA-N 2-methoxyethyl acetate Chemical compound COCCOC(C)=O XLLIQLLCWZCATF-UHFFFAOYSA-N 0.000 description 2
- VMAQYKGITHDWKL-UHFFFAOYSA-N 5-methylimidazolidine-2,4-dione Chemical compound CC1NC(=O)NC1=O VMAQYKGITHDWKL-UHFFFAOYSA-N 0.000 description 2
- YCPXWRQRBFJBPZ-UHFFFAOYSA-N 5-sulfosalicylic acid Chemical compound OC(=O)C1=CC(S(O)(=O)=O)=CC=C1O YCPXWRQRBFJBPZ-UHFFFAOYSA-N 0.000 description 2
- MRABAEUHTLLEML-UHFFFAOYSA-N Butyl lactate Chemical compound CCCCOC(=O)C(C)O MRABAEUHTLLEML-UHFFFAOYSA-N 0.000 description 2
- KCXZNSGUUQJJTR-UHFFFAOYSA-N Di-n-hexyl phthalate Chemical compound CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCC KCXZNSGUUQJJTR-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- NIQCNGHVCWTJSM-UHFFFAOYSA-N Dimethyl phthalate Chemical compound COC(=O)C1=CC=CC=C1C(=O)OC NIQCNGHVCWTJSM-UHFFFAOYSA-N 0.000 description 2
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 2
- 229920001214 Polysorbate 60 Polymers 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 2
- PRXRUNOAOLTIEF-ADSICKODSA-N Sorbitan trioleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](OC(=O)CCCCCCC\C=C/CCCCCCCC)[C@H]1OC[C@H](O)[C@H]1OC(=O)CCCCCCC\C=C/CCCCCCCC PRXRUNOAOLTIEF-ADSICKODSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 125000000732 arylene group Chemical group 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 239000001191 butyl (2R)-2-hydroxypropanoate Substances 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- OEYIOHPDSNJKLS-UHFFFAOYSA-N choline Chemical compound C[N+](C)(C)CCO OEYIOHPDSNJKLS-UHFFFAOYSA-N 0.000 description 2
- 229960001231 choline Drugs 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
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- JQVDAXLFBXTEQA-UHFFFAOYSA-N dibutylamine Chemical compound CCCCNCCCC JQVDAXLFBXTEQA-UHFFFAOYSA-N 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- FLKPEMZONWLCSK-UHFFFAOYSA-N diethyl phthalate Chemical compound CCOC(=O)C1=CC=CC=C1C(=O)OCC FLKPEMZONWLCSK-UHFFFAOYSA-N 0.000 description 2
- MGWAVDBGNNKXQV-UHFFFAOYSA-N diisobutyl phthalate Chemical compound CC(C)COC(=O)C1=CC=CC=C1C(=O)OCC(C)C MGWAVDBGNNKXQV-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
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- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- JFCQEDHGNNZCLN-UHFFFAOYSA-N glutaric acid Chemical compound OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 150000001469 hydantoins Chemical class 0.000 description 2
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical class I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 2
- 238000000671 immersion lithography Methods 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 150000007974 melamines Chemical class 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical class CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- 125000000962 organic group Chemical group 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- WEXRUCMBJFQVBZ-UHFFFAOYSA-N pentobarbital Chemical compound CCCC(C)C1(CC)C(=O)NC(=O)NC1=O WEXRUCMBJFQVBZ-UHFFFAOYSA-N 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000007142 ring opening reaction Methods 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- NHGXDBSUJJNIRV-UHFFFAOYSA-M tetrabutylammonium chloride Chemical compound [Cl-].CCCC[N+](CCCC)(CCCC)CCCC NHGXDBSUJJNIRV-UHFFFAOYSA-M 0.000 description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- MCVVDMSWCQUKEV-UHFFFAOYSA-N (2-nitrophenyl)methyl 4-methylbenzenesulfonate Chemical compound C1=CC(C)=CC=C1S(=O)(=O)OCC1=CC=CC=C1[N+]([O-])=O MCVVDMSWCQUKEV-UHFFFAOYSA-N 0.000 description 1
- DLDWUFCUUXXYTB-UHFFFAOYSA-N (2-oxo-1,2-diphenylethyl) 4-methylbenzenesulfonate Chemical compound C1=CC(C)=CC=C1S(=O)(=O)OC(C=1C=CC=CC=1)C(=O)C1=CC=CC=C1 DLDWUFCUUXXYTB-UHFFFAOYSA-N 0.000 description 1
- JHPBZFOKBAGZBL-UHFFFAOYSA-N (3-hydroxy-2,2,4-trimethylpentyl) 2-methylprop-2-enoate Chemical class CC(C)C(O)C(C)(C)COC(=O)C(C)=C JHPBZFOKBAGZBL-UHFFFAOYSA-N 0.000 description 1
- FFJCNSLCJOQHKM-CLFAGFIQSA-N (z)-1-[(z)-octadec-9-enoxy]octadec-9-ene Chemical compound CCCCCCCC\C=C/CCCCCCCCOCCCCCCCC\C=C/CCCCCCCC FFJCNSLCJOQHKM-CLFAGFIQSA-N 0.000 description 1
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 description 1
- QMMJWQMCMRUYTG-UHFFFAOYSA-N 1,2,4,5-tetrachloro-3-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=C(Cl)C(Cl)=CC(Cl)=C1Cl QMMJWQMCMRUYTG-UHFFFAOYSA-N 0.000 description 1
- SXHMJZYVFNPIDK-UHFFFAOYSA-N 1,2-dichlorocyclohexa-3,5-diene-1,3-dicarboxylic acid Chemical compound OC(=O)C1=CC=CC(Cl)(C(O)=O)C1Cl SXHMJZYVFNPIDK-UHFFFAOYSA-N 0.000 description 1
- UUMYJAHSGDZDAJ-UHFFFAOYSA-N 1,3-bis(oxiran-2-ylmethyl)-5,5-diphenylimidazolidine-2,4-dione Chemical compound O=C1C(C=2C=CC=CC=2)(C=2C=CC=CC=2)N(CC2OC2)C(=O)N1CC1CO1 UUMYJAHSGDZDAJ-UHFFFAOYSA-N 0.000 description 1
- AQOMMUIIMGZRMO-UHFFFAOYSA-N 1,3-bis(oxiran-2-ylmethyl)-5-phenyl-1,3,5-triazinane-2,4,6-trione Chemical compound O=C1N(C=2C=CC=CC=2)C(=O)N(CC2OC2)C(=O)N1CC1CO1 AQOMMUIIMGZRMO-UHFFFAOYSA-N 0.000 description 1
- QCUHNEPBSNCYPA-UHFFFAOYSA-N 1,3-bis(oxiran-2-ylmethyl)-5-propan-2-yl-1,3,5-triazinane-2,4,6-trione Chemical compound O=C1N(CC2OC2)C(=O)N(C(C)C)C(=O)N1CC1CO1 QCUHNEPBSNCYPA-UHFFFAOYSA-N 0.000 description 1
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- 238000012546 transfer Methods 0.000 description 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 239000012953 triphenylsulfonium Substances 0.000 description 1
- FAYMLNNRGCYLSR-UHFFFAOYSA-M triphenylsulfonium triflate Chemical compound [O-]S(=O)(=O)C(F)(F)F.C1=CC=CC=C1[S+](C=1C=CC=CC=1)C1=CC=CC=C1 FAYMLNNRGCYLSR-UHFFFAOYSA-M 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- RAFOHKSPUDGZPR-VOTSOKGWSA-N vinbarbital Chemical compound CC\C=C(/C)C1(CC)C(=O)NC(=O)NC1=O RAFOHKSPUDGZPR-VOTSOKGWSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/308—Chemical or electrical treatment, e.g. electrolytic etching using masks
- H01L21/3081—Chemical or electrical treatment, e.g. electrolytic etching using masks characterised by their composition, e.g. multilayer masks, materials
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- 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
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- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/0605—Polycondensates containing five-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms
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- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/0622—Polycondensates containing six-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms
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- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/0622—Polycondensates containing six-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms
- C08G73/0638—Polycondensates containing six-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms with at least three nitrogen atoms in the ring
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- 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
- G03F7/09—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers
- G03F7/091—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers characterised by antireflection means or light filtering or absorbing means, e.g. anti-halation, contrast enhancement
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- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
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- 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
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- G03F7/094—Multilayer resist systems, e.g. planarising layers
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- G03F7/20—Exposure; Apparatus therefor
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- 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
- G03F7/26—Processing photosensitive materials; Apparatus therefor
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- 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
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- 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
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- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
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- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
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Description
第2観点として、式(1)で表される繰り返し単位構造を有するポリマー、架橋性化合物及び溶剤を含むEUVリソグラフィー用レジスト下層膜形成組成物、
第3観点として、式(1)で表される繰り返し単位構造を有するポリマー、架橋性化合物、酸化合物及び溶剤を含むEUVリソグラフィー用レジスト下層膜形成組成物、
第4観点として、前記式(1)で表される繰り返し単位構造を有するポリマーが、式(7)で表される化合物と式(8)で表される化合物との反応により製造されるポリマーである、第1観点乃至第3観点のいずれか一つに記載のEUVリソグラフィー用レジスト下層膜形成組成物、
第5観点として、前記式(1)で表される繰り返し単位構造を有するポリマーが、式(9)で表される化合物と式(10)で表される化合物との反応により製造されるポリマーである、第1観点乃至第3観点のいずれか一つに記載のEUVリソグラフィー用レジスト下層膜形成組成物、
第6観点として、EUVリソグラフィー用レジスト下層膜形成組成物の固形分が0.001乃至1.0質量%である第1観点乃至第5観点の何れか一つに記載のEUVリソグラフィー用レジスト下層膜形成組成物、
第7観点として、EUVリソグラフィー用レジスト下層膜形成組成物の固形分が0.001乃至0.49質量%である第1観点乃至第5観点の何れか一つに記載のEUVリソグラフィー用レジスト下層膜形成組成物、
第8観点として、第1観点乃至第7観点のいずれか一つに記載のEUVリソグラフィー用レジスト下層膜形成組成物を半導体基板上に塗布し焼成することによって得られるEUVリソグラフィー用レジスト下層膜、
第9観点として、上記レジスト下層膜の膜厚が1nm乃至20nmである第8観点に記載のEUVリソグラフィー用レジスト下層膜、
第10観点として、第1観点乃至第7観点のいずれか一つに記載のEUVリソグラフィー用レジスト下層膜形成組成物を半導体基板上に塗布し焼成してEUVリソグラフィー用レジスト下層膜を形成する工程、そのEUVリソグラフィー用レジスト下層膜上にEUVレジスト層を形成する工程、EUVリソグラフィー用レジスト下層膜とEUVレジスト層で被覆された半導体基板を露光する工程、露光後にEUVレジスト層を現像する工程、を含む半導体装置の製造に用いるEUVレジストパターンの形成方法、及び
第11観点として、上記レジスト下層膜の膜厚が1nm乃至20nmである第10観点に記載のEUVレジストパターンの形成方法である。
さらに、本発明のEUVリソグラフィー用レジスト下層膜形成組成物を用いて形成した下層膜は、レジスト膜や下地膜との密着性にも優れるものである。
本発明のEUVリソグラフィー用レジスト下層膜は、従来のフォトリソグラフィープロセスにおいて使用されるレジスト下層膜(反射防止膜)が基板より生じる反射光を防止するためのものであるのとは対照的に、反射光を防止する効果を必要とすることなく、EUVリソグラフィー用レジスト膜の下に形成することでEUV照射時にレジストの感度が向上し鮮明なレジストパターンの形成を可能とするものである。
ジスルフィド基を有する基は、−S−S−R基や、−R−S−S−R基が挙げられる。ここでRは下述のアルキル基、アルキレン基、アリール基、アリーレン基を示す。
アルキレン基の具体例としては、メチレン基、エチレン基、プロピレン基、イソプロピレン基、ノルマルペンチレン基、シクロブチレン基、シクロペンチレン基、シクロヘキシレン基、及び2−メチルプロピレン基等が挙げられる。
アルキル基の具体例としては、メチル基、エチル基、プロピル基、イソプロピル基、ノルマルブチル基及びシクロヘキシル基が挙げられる。
アリール基の具体例としては、フェニル基が挙げられる。アリーレン基の具体例としてはフェニレン基、ナフチレン基及びアントリレン基が挙げられる。
そして、n1及びn2はそれぞれ0または1の数を表し、X2は式(2)、式(3)、又は式(0)を表す。また、好ましくは、X2は式(2)、又は式(3)を表すことができる。
また、式(7)で表される化合物の具体例としては、例えば、5,5−ジエチルバルビツール酸、5,5−ジアリルバルビツール酸、5−エチル−5−イソアミルバルビツール酸、5−アリル−5−イソブチルバルビツール酸、5−アリル−5−イソプロピルバルビツール酸、5−β−ブロモアリル−5−sec−ブチルバルビツール酸、5−エチル−5−(1−メチル−1−ブテニル)バルビツール酸、5−イソプロピル−5−β−ブロモアリルバルビツール酸、5−(1−シクロヘキシル)−5−エチルバルビツール酸、5−エチル−5−(1−メチルブチル)バルビツール酸、5,5−ジブロモバルビツール酸、5−フェニル−5−エチルバルビツール酸、及び5−エチル−5−ノルマルブチルバルビツール酸等のバルビツール酸化合物が挙げられる。
また、式(7)で表される化合物の具体例としては、例えば、モノアリルイソシアヌル酸、モノメチルイソシアヌル酸、モノプロピルイソシアヌル酸、モノイソプロピルイソシアヌル酸、モノフェニルイソシアヌル酸、モノベンジルイソシアヌル酸、モノクロロイソシアヌル酸、及びモノエチルイソシアヌル酸等のイソシアヌル酸化合物が挙げられる。
また、式(8)で表される化合物の具体例としては、例えば、1,3−ジグリシジルヒダントイン、1,3−ジグリシジル−5,5−ジフェニルヒダントイン、1,3−ジグリシジル−5,5−ジメチルヒダントイン、1,3−ジグリシジル−5−メチルヒダントイン、1,3−ジグリシジル−5−エチル−5−フェニルヒダントイン、1,3−ジグリシジル−5−ベンジルヒダントイン、1,3−ジグリシジル−5−ヒダントイン酢酸、1,3−ジグリシジル−5−エチル−5−メチルヒダントイン、1,3−ジグリシジル−5,5−テトラメチレンヒダントイン、1,3−ジグリシジル−5,5−ペンタメチレンヒダントイン、1,3−ジグリシジル−5−(4−ヒドロキシベンジル)ヒダントイン、1,3−ジグリシジル−5−フェニルヒダントイン、1,3−ジグリシジル−5−ヒドロキシメチル−ヒダントイン、及び1,3−ジグリシジル−5−(2−シアノエチル)ヒダントイン等のジグリシジルヒダントイン化合物が挙げられる。
また、式(8)で表される化合物の具体例としては、例えば、1,3−ジグリシジル−5,5−ジエチルバルビツール酸、1,3−ジグリシジル−5−フェニル−5−エチルバルビツール酸、1,3−ジグリシジル−5−エチル−5−イソアミルバルビツール酸、1,3−ジグリシジル−5−アリル−5−イソブチルバルビツール酸、1,3−ジグリシジル−5−アリル−5−イソプロピルバルビツール酸、1,3−ジグリシジル−5−β−ブロモアリル−5−sec−ブチルバルビツール酸、1,3−ジグリシジル−5−エチル−5−(1−メチル−1−ブテニル)バルビツール酸、1,3−ジグリシジル−5−イソプロピル−5−β−ブロモアリルバルビツール酸、1,3−ジグリシジル−5−(1−シクロヘキシル)−5−エチルバルビツール酸、1,3−ジグリシジル−5−エチル−5−(1−メチルブチル)バルビツール酸、1,3−ジグリシジル−5,5−ジアリルバルビツール酸ジグリシジル、及び1,3−ジグリシジル−5−エチル−5−ノルマルブチルバルビツール酸等のジグリシジルバルビツール酸化合物が挙げられる。
また、反応に使用される式(9)及び式(10)で表される化合物の割合としては、モル比で、式(9):式(10)として3:1乃至1:3、好ましくは3:2乃至2:3である。
また、例えば、式(9)の化合物としてモノアリルジグリシジルイソシアヌル酸が、式(10)の化合物としてテレフタル酸と5,5−ジエチルバルビツール酸の二種が使用された場合、得られるポリマーは、式(13)の繰り返し単位構造と式(24)の繰り返し単位構造からなるポリマーであると考えられる。
モノアリルジグリシジルイソシアヌル酸(四国化成工業(株)製)100g、5,5−ジエチルバルビツール酸66.4g、及びベンジルトリエチルアンモニウムクロリド4.1gをプロピレングリコールモノメチルエーテル682gに溶解させた後、130℃で24時間反応させポリマーを含む溶液を得た。得られたポリマーは下記式で示され、GPC分析を行ったところ、標準ポリスチレン換算にて重量平均分子量は6800であった。
モノメチルジグリシジルイソシアヌル酸(四国化成工業(株)製)12.00g、1,2,3,4−シクロブタンテトラカルボン酸二無水物9.32g、及びベンジルトリエチルアンモニウムクロリド0.54gをプロピレングリコールモノメチルエーテル87.44gに溶解させた後、130℃で24時間反応させポリマーを含む溶液を得た。得られたポリマーは下記式で示され、GPC分析を行ったところ、標準ポリスチレン換算にて重量平均分子量は8000であった。
上記合成例1で得られたポリマー2gを有する溶液10gにテトラメトキシメチルグリコールウリル(日本サイテックインダストリーズ(株)製、商品名:POWDERLINK〔登録商標〕1174)0.5gと5−スルホサリチル酸0.05gを混合し、プロピレングリコールモノメチルエーテル35.4g、及びプロピレングリコールモノメチルエーテルアセテート18.6gに溶解させ溶液とした。その後、孔径0.10μmのポリエチレン製ミクロフィルターを用いてろ過し、更に、孔径0.05μmのポリエチレン製ミクロフィルターを用いてろ過して、上記比率の溶剤で固形分0.4質量%に調製し、レジスト下層膜形成用組成物(溶液)を調製した。
上記合成例2で得られたポリマー2gを有する溶液10gにテトラメトキシメチルグリコールウリル(日本サイテックインダストリーズ(株)製、商品名:POWDERLINK〔登録商標〕1174)0.5gと5−スルホサリチル酸0.05gを混合し、プロピレングリコールモノメチルエーテル35.4g、及びプロピレングリコールモノメチルエーテルアセテート18.6gに溶解させ溶液とした。その後、孔径0.10μmのポリエチレン製ミクロフィルターを用いてろ過し、更に、孔径0.05μmのポリエチレン製ミクロフィルターを用いてろ過して、上記比率の溶剤で固形分0.4質量%に調製し、レジスト下層膜形成用組成物(溶液)を調製した。
シリコンウエハー上に、本発明の実施例1乃至実施例2で調製されたレジスト下層膜形成組成物をそれぞれスピンコートし、205℃で1分間加熱することにより、膜厚10nmのレジスト下層膜が形成される。そのレジスト下層膜上に、EUV用レジスト溶液(メタクリレート樹脂系レジスト)をスピンコートし加熱を行い膜厚50nmのレジスト膜を形成し、EUV露光装置(ASML社製EUV−ADT)を用い、NA=0.25、σ=0.5の条件で露光する。露光後、PEB(Post Exposure Bake:露光後加熱)を行い、クーリングプレート上で室温まで冷却し、現像及びリンス処理をし、レジストパターンを形成した。評価は、30nmのラインアンドスペースの形成可否、パターン上面からの観察によるパターンのラインエッジラフネス(LER)の大小により行った。
Claims (8)
- 式(1):
6のアルコキシ基、ニトロ基、シアノ基、ヒドロキシ基、カルボキシル基及び炭素原子数1乃至6のアルキルチオ基からなる群から選ばれる基で置換されていてもよく、また、R1とR2は互いに結合して炭素原子数3乃至6の環を形成していてもよく、R3はハロゲン原子、炭素原子数1乃至6のアルキル基、炭素原子数3乃至6のアルケニル基、ベンジル基またはフェニル基を表し、そして、前記フェニル基は、炭素原子数1乃至6のアルキル基、ハロゲン原子、炭素数1乃至6のアルコキシ基、ニトロ基、シアノ基、ヒドロキシ基、及び炭素原子数1乃至6のアルキルチオ基からなる群から選ばれる基で置換されていてもよい)を表し、Qは式(5)または式(6):
- 式(1):
- 式(1):
- EUVリソグラフィー用レジスト下層膜形成組成物の固形分が0.001乃至1.0質量%である請求項1乃至請求項5の何れか1項に記載のEUVリソグラフィー用レジスト下層膜。
- EUVリソグラフィー用レジスト下層膜形成組成物の固形分が0.001乃至0.49質量%である請求項1乃至請求項5の何れか1項に記載のEUVリソグラフィー用レジスト下層膜。
- 半導体基板上に請求項1乃至請求項7のいずれか1項に記載のEUVリソグラフィー用レジスト下層膜を形成する工程、そのEUVリソグラフィー用レジスト下層膜上にEUVレジスト層を形成する工程、EUVリソグラフィー用レジスト下層膜とEUVレジスト層で被覆された半導体基板をEUV露光する工程、EUV露光後にEUVレジスト層を現像する工程、を含む半導体装置の製造に用いるEUVレジストパターンの形成方法。
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