KR101532113B1 - 패턴 형성 방법 - Google Patents
패턴 형성 방법 Download PDFInfo
- Publication number
- KR101532113B1 KR101532113B1 KR1020110112688A KR20110112688A KR101532113B1 KR 101532113 B1 KR101532113 B1 KR 101532113B1 KR 1020110112688 A KR1020110112688 A KR 1020110112688A KR 20110112688 A KR20110112688 A KR 20110112688A KR 101532113 B1 KR101532113 B1 KR 101532113B1
- Authority
- KR
- South Korea
- Prior art keywords
- group
- resist
- methyl
- carbon atoms
- hydrogen atom
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000000034 method Methods 0.000 title claims abstract description 50
- 230000008569 process Effects 0.000 title claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 86
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 81
- 229920000642 polymer Polymers 0.000 claims abstract description 81
- 239000000758 substrate Substances 0.000 claims abstract description 52
- 150000001875 compounds Chemical class 0.000 claims abstract description 32
- 239000002904 solvent Substances 0.000 claims abstract description 30
- 125000003118 aryl group Chemical group 0.000 claims abstract description 21
- 150000002500 ions Chemical class 0.000 claims abstract description 14
- 125000005233 alkylalcohol group Chemical group 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract 3
- 238000000576 coating method Methods 0.000 claims abstract 3
- -1 ethyl propoxy propionate Chemical compound 0.000 claims description 58
- 239000002253 acid Substances 0.000 claims description 52
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 42
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 26
- 125000002947 alkylene group Chemical group 0.000 claims description 23
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 23
- QPRQEDXDYOZYLA-UHFFFAOYSA-N 2-methylbutan-1-ol Chemical compound CCC(C)CO QPRQEDXDYOZYLA-UHFFFAOYSA-N 0.000 claims description 21
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 20
- 125000004122 cyclic group Chemical group 0.000 claims description 20
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 19
- 125000006165 cyclic alkyl group Chemical group 0.000 claims description 17
- 229910052731 fluorine Inorganic materials 0.000 claims description 17
- 125000001153 fluoro group Chemical group F* 0.000 claims description 17
- 125000004185 ester group Chemical group 0.000 claims description 16
- AQIXEPGDORPWBJ-UHFFFAOYSA-N pentan-3-ol Chemical compound CCC(O)CC AQIXEPGDORPWBJ-UHFFFAOYSA-N 0.000 claims description 16
- MSXVEPNJUHWQHW-UHFFFAOYSA-N 2-methylbutan-2-ol Chemical compound CCC(C)(C)O MSXVEPNJUHWQHW-UHFFFAOYSA-N 0.000 claims description 15
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 15
- 150000002596 lactones Chemical group 0.000 claims description 15
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 15
- BBMCTIGTTCKYKF-UHFFFAOYSA-N 1-heptanol Chemical compound CCCCCCCO BBMCTIGTTCKYKF-UHFFFAOYSA-N 0.000 claims description 14
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 14
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 11
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims description 10
- 125000001033 ether group Chemical group 0.000 claims description 10
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 claims description 10
- KPSSIOMAKSHJJG-UHFFFAOYSA-N neopentyl alcohol Chemical compound CC(C)(C)CO KPSSIOMAKSHJJG-UHFFFAOYSA-N 0.000 claims description 10
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 claims description 9
- PFNHSEQQEPMLNI-UHFFFAOYSA-N 2-methyl-1-pentanol Chemical compound CCCC(C)CO PFNHSEQQEPMLNI-UHFFFAOYSA-N 0.000 claims description 9
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052717 sulfur Inorganic materials 0.000 claims description 9
- 239000003513 alkali Substances 0.000 claims description 8
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 claims description 8
- 125000004434 sulfur atom Chemical group 0.000 claims description 8
- 125000004036 acetal group Chemical group 0.000 claims description 7
- 125000003368 amide group Chemical group 0.000 claims description 7
- 238000001312 dry etching Methods 0.000 claims description 7
- JOLQKTGDSGKSKJ-UHFFFAOYSA-N 1-ethoxypropan-2-ol Chemical compound CCOCC(C)O JOLQKTGDSGKSKJ-UHFFFAOYSA-N 0.000 claims description 6
- 125000005587 carbonate group Chemical group 0.000 claims description 6
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 6
- LIPRQQHINVWJCH-UHFFFAOYSA-N 1-ethoxypropan-2-yl acetate Chemical compound CCOCC(C)OC(C)=O LIPRQQHINVWJCH-UHFFFAOYSA-N 0.000 claims description 5
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 claims description 5
- DUXCSEISVMREAX-UHFFFAOYSA-N 3,3-dimethylbutan-1-ol Chemical compound CC(C)(C)CCO DUXCSEISVMREAX-UHFFFAOYSA-N 0.000 claims description 5
- BTANRVKWQNVYAZ-UHFFFAOYSA-N butan-2-ol Chemical compound CCC(C)O BTANRVKWQNVYAZ-UHFFFAOYSA-N 0.000 claims description 5
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 claims description 5
- 229940035429 isobutyl alcohol Drugs 0.000 claims description 5
- DFOXKPDFWGNLJU-UHFFFAOYSA-N pinacolyl alcohol Chemical compound CC(O)C(C)(C)C DFOXKPDFWGNLJU-UHFFFAOYSA-N 0.000 claims description 5
- JSGVZVOGOQILFM-UHFFFAOYSA-N 3-methoxy-1-butanol Chemical compound COC(C)CCO JSGVZVOGOQILFM-UHFFFAOYSA-N 0.000 claims description 4
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 4
- XXRCUYVCPSWGCC-UHFFFAOYSA-N Ethyl pyruvate Chemical compound CCOC(=O)C(C)=O XXRCUYVCPSWGCC-UHFFFAOYSA-N 0.000 claims description 4
- 229940043232 butyl acetate Drugs 0.000 claims description 4
- 229940116333 ethyl lactate Drugs 0.000 claims description 4
- 229940117360 ethyl pyruvate Drugs 0.000 claims description 4
- BDJSOPWXYLFTNW-UHFFFAOYSA-N methyl 3-methoxypropanoate Chemical compound COCCC(=O)OC BDJSOPWXYLFTNW-UHFFFAOYSA-N 0.000 claims description 4
- 230000008033 biological extinction Effects 0.000 claims description 3
- 125000001028 difluoromethyl group Chemical group [H]C(F)(F)* 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- WMOVHXAZOJBABW-UHFFFAOYSA-N tert-butyl acetate Chemical compound CC(=O)OC(C)(C)C WMOVHXAZOJBABW-UHFFFAOYSA-N 0.000 claims description 3
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 2
- 125000002130 sulfonic acid ester group Chemical group 0.000 claims description 2
- WFRBDWRZVBPBDO-UHFFFAOYSA-N 2-methyl-2-pentanol Chemical compound CCCC(C)(C)O WFRBDWRZVBPBDO-UHFFFAOYSA-N 0.000 claims 4
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims 4
- JEIHSRORUWXJGF-UHFFFAOYSA-N 1-[(2-methylpropan-2-yl)oxy]propan-2-yl acetate Chemical compound CC(=O)OC(C)COC(C)(C)C JEIHSRORUWXJGF-UHFFFAOYSA-N 0.000 claims 2
- TZYRSLHNPKPEFV-UHFFFAOYSA-N 2-ethyl-1-butanol Chemical compound CCC(CC)CO TZYRSLHNPKPEFV-UHFFFAOYSA-N 0.000 claims 2
- PCWGTDULNUVNBN-UHFFFAOYSA-N 4-methylpentan-1-ol Chemical compound CC(C)CCCO PCWGTDULNUVNBN-UHFFFAOYSA-N 0.000 claims 2
- VPSLGSSVPWVZFG-UHFFFAOYSA-N butan-2-yl propanoate Chemical compound CCC(C)OC(=O)CC VPSLGSSVPWVZFG-UHFFFAOYSA-N 0.000 claims 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- JAELLLITIZHOGQ-UHFFFAOYSA-N tert-butyl propanoate Chemical compound CCC(=O)OC(C)(C)C JAELLLITIZHOGQ-UHFFFAOYSA-N 0.000 claims 2
- 238000011161 development Methods 0.000 abstract description 14
- 238000005530 etching Methods 0.000 abstract description 14
- 239000010408 film Substances 0.000 description 140
- 239000010410 layer Substances 0.000 description 71
- 239000006185 dispersion Substances 0.000 description 29
- 229920005601 base polymer Polymers 0.000 description 17
- 229920002120 photoresistant polymer Polymers 0.000 description 17
- 238000010521 absorption reaction Methods 0.000 description 15
- 230000000694 effects Effects 0.000 description 14
- 239000000243 solution Substances 0.000 description 14
- 230000018109 developmental process Effects 0.000 description 13
- 239000000178 monomer Substances 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 10
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 9
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 9
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 8
- 125000000217 alkyl group Chemical group 0.000 description 8
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 150000002430 hydrocarbons Chemical group 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 125000005842 heteroatom Chemical group 0.000 description 7
- 238000005468 ion implantation Methods 0.000 description 7
- 238000002156 mixing Methods 0.000 description 7
- 239000003960 organic solvent Substances 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 239000002585 base Substances 0.000 description 6
- 238000004132 cross linking Methods 0.000 description 6
- 238000000671 immersion lithography Methods 0.000 description 6
- 125000004430 oxygen atom Chemical group O* 0.000 description 6
- 238000000059 patterning Methods 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 6
- 238000004090 dissolution Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 150000007514 bases Chemical class 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 4
- BGTOWKSIORTVQH-UHFFFAOYSA-N cyclopentanone Chemical compound O=C1CCCC1 BGTOWKSIORTVQH-UHFFFAOYSA-N 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 125000005188 oxoalkyl group Chemical group 0.000 description 4
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 4
- ISTJMQSHILQAEC-UHFFFAOYSA-N 2-methyl-3-pentanol Chemical compound CCC(O)C(C)C ISTJMQSHILQAEC-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 3
- 125000002252 acyl group Chemical group 0.000 description 3
- 125000002723 alicyclic group Chemical group 0.000 description 3
- 125000003342 alkenyl group Chemical group 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 150000001721 carbon Chemical group 0.000 description 3
- 238000007334 copolymerization reaction Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000005227 gel permeation chromatography Methods 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 230000007261 regionalization Effects 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 238000004528 spin coating Methods 0.000 description 3
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 3
- 239000004094 surface-active agent 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
- LEEANUDEDHYDTG-UHFFFAOYSA-N 1,2-dimethoxypropane Chemical compound COCC(C)OC LEEANUDEDHYDTG-UHFFFAOYSA-N 0.000 description 2
- YWYRVWBEIODDTJ-UHFFFAOYSA-N 1-ethenyl-9h-fluorene Chemical compound C1C2=CC=CC=C2C2=C1C(C=C)=CC=C2 YWYRVWBEIODDTJ-UHFFFAOYSA-N 0.000 description 2
- SKVBSEPLAMBYGW-UHFFFAOYSA-N 1-ethoxy-2,4-dimethylbenzene Chemical compound CCOC1=CC=C(C)C=C1C SKVBSEPLAMBYGW-UHFFFAOYSA-N 0.000 description 2
- NIEHEMAZEULEKB-UHFFFAOYSA-N 1-ethyl-2-methoxybenzene Chemical compound CCC1=CC=CC=C1OC NIEHEMAZEULEKB-UHFFFAOYSA-N 0.000 description 2
- HDNRAPAFJLXKBV-UHFFFAOYSA-N 1-ethyl-4-methoxybenzene Chemical compound CCC1=CC=C(OC)C=C1 HDNRAPAFJLXKBV-UHFFFAOYSA-N 0.000 description 2
- BLMBNEVGYRXFNA-UHFFFAOYSA-N 1-methoxy-2,3-dimethylbenzene Chemical compound COC1=CC=CC(C)=C1C BLMBNEVGYRXFNA-UHFFFAOYSA-N 0.000 description 2
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Chemical compound C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 description 2
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 2
- SJZAUIVYZWPNAS-UHFFFAOYSA-N 2-methoxy-1,4-dimethylbenzene Chemical compound COC1=CC(C)=CC=C1C SJZAUIVYZWPNAS-UHFFFAOYSA-N 0.000 description 2
- SZNYYWIUQFZLLT-UHFFFAOYSA-N 2-methyl-1-(2-methylpropoxy)propane Chemical compound CC(C)COCC(C)C SZNYYWIUQFZLLT-UHFFFAOYSA-N 0.000 description 2
- ZXNBBWHRUSXUFZ-UHFFFAOYSA-N 3-methyl-2-pentanol Chemical compound CCC(C)C(C)O ZXNBBWHRUSXUFZ-UHFFFAOYSA-N 0.000 description 2
- IWTBVKIGCDZRPL-UHFFFAOYSA-N 3-methylpentanol Chemical compound CCC(C)CCO IWTBVKIGCDZRPL-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 125000005073 adamantyl group Chemical group C12(CC3CC(CC(C1)C3)C2)* 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000001476 alcoholic effect Effects 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 125000003710 aryl alkyl group Chemical group 0.000 description 2
- 125000000732 arylene group Chemical group 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- OTAFHZMPRISVEM-UHFFFAOYSA-N chromone Chemical compound C1=CC=C2C(=O)C=COC2=C1 OTAFHZMPRISVEM-UHFFFAOYSA-N 0.000 description 2
- ZYGHJZDHTFUPRJ-UHFFFAOYSA-N coumarin Chemical compound C1=CC=C2OC(=O)C=CC2=C1 ZYGHJZDHTFUPRJ-UHFFFAOYSA-N 0.000 description 2
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 description 2
- BHXIWUJLHYHGSJ-UHFFFAOYSA-N ethyl 3-ethoxypropanoate Chemical compound CCOCCC(=O)OCC BHXIWUJLHYHGSJ-UHFFFAOYSA-N 0.000 description 2
- 125000005843 halogen group Chemical group 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 150000003949 imides Chemical class 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000001459 lithography Methods 0.000 description 2
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 2
- GHDIHPNJQVDFBL-UHFFFAOYSA-N methoxycyclohexane Chemical compound COC1CCCCC1 GHDIHPNJQVDFBL-UHFFFAOYSA-N 0.000 description 2
- SKTCDJAMAYNROS-UHFFFAOYSA-N methoxycyclopentane Chemical compound COC1CCCC1 SKTCDJAMAYNROS-UHFFFAOYSA-N 0.000 description 2
- GQKZBCPTCWJTAS-UHFFFAOYSA-N methoxymethylbenzene Chemical compound COCC1=CC=CC=C1 GQKZBCPTCWJTAS-UHFFFAOYSA-N 0.000 description 2
- RDOXTESZEPMUJZ-UHFFFAOYSA-N methyl phenyl ether Natural products COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 230000000269 nucleophilic effect Effects 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- KCXFHTAICRTXLI-UHFFFAOYSA-M propane-1-sulfonate Chemical compound CCCS([O-])(=O)=O KCXFHTAICRTXLI-UHFFFAOYSA-M 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 229930195734 saturated hydrocarbon Natural products 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 125000004665 trialkylsilyl group Chemical group 0.000 description 2
- PNKZBZPLRKCVLI-UHFFFAOYSA-N (2-methylpropan-2-yl)oxybenzene Chemical compound CC(C)(C)OC1=CC=CC=C1 PNKZBZPLRKCVLI-UHFFFAOYSA-N 0.000 description 1
- 239000001618 (3R)-3-methylpentan-1-ol Substances 0.000 description 1
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 description 1
- BYEAHWXPCBROCE-UHFFFAOYSA-N 1,1,1,3,3,3-hexafluoropropan-2-ol Chemical group FC(F)(F)C(O)C(F)(F)F BYEAHWXPCBROCE-UHFFFAOYSA-N 0.000 description 1
- 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 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- VWGNFIQXBYRDCH-UHFFFAOYSA-N 1,4-diethoxybenzene Chemical compound CCOC1=CC=C(OCC)C=C1 VWGNFIQXBYRDCH-UHFFFAOYSA-N 0.000 description 1
- GKQBSTJUOVBUDX-UHFFFAOYSA-N 1-(2,3-dimethylphenoxy)-2,3-dimethylbenzene Chemical compound CC1=CC=CC(OC=2C(=C(C)C=CC=2)C)=C1C GKQBSTJUOVBUDX-UHFFFAOYSA-N 0.000 description 1
- OQZPSXADLAJSOP-UHFFFAOYSA-N 1-(2-phenylbut-3-enoxy)but-3-en-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C=C)COCC(C=C)C1=CC=CC=C1 OQZPSXADLAJSOP-UHFFFAOYSA-N 0.000 description 1
- PBMCNXWCDKJXRU-UHFFFAOYSA-N 1-[bis(1,1,2,2,2-pentafluoroethylsulfonyl)methylsulfonyl]-1,1,2,2,2-pentafluoroethane Chemical compound FC(F)(F)C(F)(F)S(=O)(=O)[C-](S(=O)(=O)C(F)(F)C(F)(F)F)S(=O)(=O)C(F)(F)C(F)(F)F PBMCNXWCDKJXRU-UHFFFAOYSA-N 0.000 description 1
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- 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
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- 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
- H01L21/04—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
- H01L21/26—Bombardment with radiation
- H01L21/263—Bombardment with radiation with high-energy radiation
- H01L21/265—Bombardment with radiation with high-energy radiation producing ion implantation
- H01L21/266—Bombardment with radiation with high-energy radiation producing ion implantation using masks
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
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Abstract
본 발명의 패턴 형성 방법에 따르면, 현상 후에 기판면을 개구시킬 수 있다. 본 발명에서는 제2층의 레지스트막 단독의 경우보다 현상 후의 레지스트 패턴을 마스크로 하여 기판을 에칭 가공하거나 이온을 주입할 때의 내성을 높게 할 수 있다.
Description
도 2는 본 발명의 패턴 형성 방법을 도시한 단면도이고, A는 기판 상에 제1 레지스트막을 형성한 상태, B는 그 위에 제2 레지스트막을 형성한 상태, C는 이 레지스트막을 노광한 상태, D는 현상한 상태, E는 레지스트 패턴을 마스크로 하여 기판에 이온을 주입한 상태를 나타낸다.
도 3은 본 발명의 제1층째의 레지스트막의 n값을 1.3으로 하고, k값과 막 두께를 변화시켰을 때의 레지스트막의 하측으로부터의 반사율을 나타내는 도면이다.
도 4는 본 발명의 제1층째의 레지스트막의 n값을 1.4로 하고, k값과 막 두께를 변화시켰을 때의 레지스트막의 하측으로부터의 반사율을 나타내는 도면이다.
도 5는 본 발명의 제1층째의 레지스트막의 n값을 1.5로 하고, k값과 막 두께를 변화시켰을 때의 레지스트막의 하측으로부터의 반사율을 나타내는 도면이다.
도 6은 본 발명의 제1층째의 레지스트막의 n값을 1.6으로 하고, k값과 막 두께를 변화시켰을 때의 레지스트막의 하측으로부터의 반사율을 나타내는 도면이다.
도 7은 본 발명의 제1층째의 레지스트막의 n값을 1.7로 하고, k값과 막 두께를 변화시켰을 때의 레지스트막의 하측으로부터의 반사율을 나타내는 도면이다.
도 8은 본 발명의 제1층째의 레지스트막의 n값을 1.8로 하고, k값과 막 두께를 변화시켰을 때의 레지스트막의 하측으로부터의 반사율을 나타내는 도면이다.
도 9는 본 발명의 제1층째의 레지스트막의 n값을 1.9로 하고, k값과 막 두께를 변화시켰을 때의 레지스트막의 하측으로부터의 반사율을 나타내는 도면이다.
도 10은 본 발명의 제1층째의 레지스트막의 n값을 2.0으로 하고, k값과 막 두께를 변화시켰을 때의 레지스트막의 하측으로부터의 반사율을 나타내는 도면이다.
20 : 피가공층
31 : 제1 레지스트막
32 : 제2 레지스트막
Claims (14)
- 방향족기를 반복 단위의 20 몰% 이상 100 몰% 이하의 범위로 가지며, 산에 의해 알칼리에 용해되는 제1 고분자 화합물과, 시클로헥사논, 시클로펜타논, 메틸-2-n-아밀케톤, 3-메톡시부탄올, 3-메틸-3-메톡시부탄올, 1-메톡시-2-프로판올, 1-에톡시-2-프로판올, 프로필렌글리콜 모노메틸에테르, 에틸렌글리콜 모노메틸에테르, 프로필렌글리콜 모노에틸에테르, 에틸렌글리콜 모노에틸에테르, 프로필렌글리콜 디메틸에테르, 디에틸렌글리콜 디메틸에테르, 프로필렌글리콜 모노메틸에테르아세테이트, 프로필렌글리콜 모노에틸에테르아세테이트, 락트산에틸, 피루브산에틸, 아세트산부틸, 3-메톡시프로피온산메틸, 3-에톡시프로피온산에틸, 아세트산tert-부틸, 프로피온산tert-부틸, 프로필렌글리콜 모노tert-부틸에테르아세테이트 및 γ-부티로락톤으로부터 선택되는 1종 단독 또는 2종 이상을 혼합한 것인 제1 용제를 포함하는 제1 포지티브형 레지스트 재료를 기판 상에 도포하여 제1 레지스트막을 형성하는 공정,
제1 레지스트막 상에, 제2 중합체와, 제1 레지스트막을 용해시키지 않는, n-프로판올, 이소프로필알코올, 1-부틸알코올, 2-부틸알코올, 이소부틸알코올, tert-부틸알코올, 1-펜탄올, 2-펜탄올, 3-펜탄올, tert-아밀알코올, 네오펜틸알코올, 2-메틸-1-부탄올, 3-메틸-1-부탄올, 3-메틸-3-펜탄올, 시클로펜탄올, 1-헥산올, 2-헥산올, 3-헥산올, 2,3-디메틸-2-부탄올, 3,3-디메틸-1-부탄올, 3,3-디메틸-2-부탄올, 2-에틸-1-부탄올, 2-메틸-1-펜탄올, 2-메틸-2-펜탄올, 2-메틸-3-펜탄올, 3-메틸-1-펜탄올, 3-메틸-2-펜탄올, 3-메틸-3-펜탄올, 4-메틸-1-펜탄올, 4-메틸-2-펜탄올, 4-메틸-3-펜탄올, 1-헵탄올, 시클로헥산올 및 옥탄올로부터 선택되는 1종 단독 또는 2종 이상을 혼합한 것인, 탄소수 3 내지 8의 알킬알코올인 제2 용매를 포함하는 제2 포지티브형 레지스트 재료를 도포하여 제2 레지스트막을 형성하는 공정,
고에너지선으로 노광하는 공정,
베이킹(PEB; Post Exposure Bake) 공정, 및
현상액을 이용하여 상기 제1과 제2 레지스트막을 동시에 현상하여 레지스트 패턴을 형성하는 공정을 포함하는 것을 특징으로 하는 패턴 형성 방법. - 제1항에 있어서, 제1 레지스트막의 노광 파장에 대한 소광 계수(k값)가 0.1 내지 1.1의 범위인 것을 특징으로 하는 패턴 형성 방법.
- 제1항에 있어서, 노광 파장이 ArF 엑시머 레이저에 의한 193 ㎚인 것을 특징으로 하는 패턴 형성 방법.
- 제1항에 있어서, 제1 레지스트 재료의 방향족기가 벤젠환인 것을 특징으로 하는 패턴 형성 방법.
- 제1항에 있어서, 제2 레지스트 재료에 이용되는 제2 중합체가 2,2,2-트리플루오로-1-히드록시에틸기를 갖는 것을 특징으로 하는 패턴 형성 방법.
- 제5항에 있어서, 제2 중합체가 하기 화학식 (1)로 표시되는 2,2,2-트리플루오로-1-히드록시에틸기를 갖는 반복 단위를 포함하는 것을 특징으로 하는 패턴 형성 방법.
(식 중, R1은 수소 원자 또는 메틸기이고, m은 1 또는 2이고, m이 1인 경우, R2는 탄소수 1 내지 10의 직쇄상, 분지상 또는 환상의 알킬렌기이고, 에스테르기, 에테르기, 히드록시기 또는 불소 원자를 가질 수도 있고, m이 2인 경우, 상기 알킬렌기로부터 수소 원자가 1개 이탈한 기이고, R2는 R3과 결합하여 환을 형성할 수도 있고, R3은 수소 원자, 불소 원자, 메틸기, 트리플루오로메틸기 또는 디플루오로메틸기이다) - 제5항에 있어서, 제2 중합체가 하기 화학식 (2)로 표시되는 2,2,2-트리플루오로-1-히드록시에틸기를 갖는 반복 단위 a와, 산불안정기를 갖는 반복 단위 b1을 포함하는 공중합체인 것을 특징으로 하는 패턴 형성 방법.
(식 중, R1은 수소 원자 또는 메틸기이고, m은 1 또는 2이고, m이 1인 경우, R2는 탄소수 1 내지 10의 직쇄상, 분지상 또는 환상의 알킬렌기이고, 에스테르기, 에테르기, 히드록시기 또는 불소 원자를 가질 수도 있고, m이 2인 경우, 상기 알킬렌기로부터 수소 원자가 1개 이탈한 기이고, R2는 R3과 결합하여 환을 형성할 수도 있고, R3은 수소 원자, 불소 원자, 메틸기, 트리플루오로메틸기 또는 디플루오로메틸기이고, R4는 수소 원자 또는 메틸기이고, R5는 산불안정기이고, 0<a<1.0, 0<b1<1.0, 0<a+b1<1.0의 범위이다) - 제1항에 있어서, 제1 레지스트 재료에 이용되는 제1 고분자 화합물이 하기 화학식 (3)으로 표시되는 반복 단위 b2, c1 및 c2를 포함하는 것을 특징으로 하는 패턴 형성 방법.
(식 중, R6, R9, R13은 각각 수소 원자 또는 메틸기이고, X1, X2, X3은 각각 단결합 또는 -C(=O)-O-이고, X2는 -C(=O)-NH-일 수도 있고, R7, R10, R14는 각각 단결합 또는 탄소수 1 내지 6의 직쇄상 또는 분지상의 알킬렌기이고, R7, R10, R14는 에테르기, 에스테르기 또는 락톤환을 가질 수도 있고, R8, R11, R15는 각각 산불안정기이고, R12는 수소 원자, 불소 원자 또는 탄소수 1 내지 6의 직쇄상, 분지상 또는 환상의 알킬기이고, p, s는 1 또는 2이고, q는 0 내지 4의 정수이고, r1, r2는 0 내지 2의 정수이고, 0≤b2<1.0, 0≤c1<1.0, 0≤c2<1.0, 0.2<b2+c1+c2≤1.0의 범위이다) - 제8항에 있어서, 제1 고분자 화합물이 상기 화학식 (3)으로 표시되는 반복 단위 b2, c1, c2에 추가로 락톤환, 카보네이트기, 티오카보네이트기, 카르보닐기, 환상 아세탈기, 에테르기, 에스테르기, 술폰산에스테르기, 시아노기, 아미드기 및 -O-C(=O)-Y-(Y는 황 원자 또는 NH이다)로부터 선택되는 밀착성기를 갖는 반복 단위 d를 함유하는 것을 특징으로 하는 패턴 형성 방법.
- 제1항에 있어서, 현상액을 이용하여 상기 제1과 제2 레지스트막을 동시에 현상하여 레지스트 패턴을 형성한 후에 드라이 에칭에 의해 기판을 가공하는 것을 특징으로 하는 패턴 형성 방법.
- 제1항에 있어서, 현상액을 이용하여 상기 제1과 제2 레지스트막을 동시에 현상하여 레지스트 패턴을 형성한 후에 기판에 이온을 주입하는 것을 특징으로 하는 패턴 형성 방법.
- 방향족기를 반복 단위의 20 몰% 이상 100 몰% 이하의 범위로 가지며, 산에 의해 알칼리에 용해되는 제1 고분자 화합물과, 시클로헥사논, 시클로펜타논, 메틸-2-n-아밀케톤, 3-메톡시부탄올, 3-메틸-3-메톡시부탄올, 1-메톡시-2-프로판올, 1-에톡시-2-프로판올, 프로필렌글리콜 모노메틸에테르, 에틸렌글리콜 모노메틸에테르, 프로필렌글리콜 모노에틸에테르, 에틸렌글리콜 모노에틸에테르, 프로필렌글리콜 디메틸에테르, 디에틸렌글리콜 디메틸에테르, 프로필렌글리콜 모노메틸에테르아세테이트, 프로필렌글리콜 모노에틸에테르아세테이트, 락트산에틸, 피루브산에틸, 아세트산부틸, 3-메톡시프로피온산메틸, 3-에톡시프로피온산에틸, 아세트산tert-부틸, 프로피온산tert-부틸, 프로필렌글리콜 모노tert-부틸에테르아세테이트 및 γ-부티로락톤으로부터 선택되는 1종 단독 또는 2종 이상을 혼합한 것인 제1 용제를 포함하는 제1 포지티브형 레지스트 재료를 기판 상에 도포하여 제1 레지스트막을 형성하는 공정,
제1 레지스트막 상에, 제2 중합체와, 제1 레지스트막을 용해시키지 않는, n-프로판올, 이소프로필알코올, 1-부틸알코올, 2-부틸알코올, 이소부틸알코올, tert-부틸알코올, 1-펜탄올, 2-펜탄올, 3-펜탄올, tert-아밀알코올, 네오펜틸알코올, 2-메틸-1-부탄올, 3-메틸-1-부탄올, 3-메틸-3-펜탄올, 시클로펜탄올, 1-헥산올, 2-헥산올, 3-헥산올, 2,3-디메틸-2-부탄올, 3,3-디메틸-1-부탄올, 3,3-디메틸-2-부탄올, 2-에틸-1-부탄올, 2-메틸-1-펜탄올, 2-메틸-2-펜탄올, 2-메틸-3-펜탄올, 3-메틸-1-펜탄올, 3-메틸-2-펜탄올, 3-메틸-3-펜탄올, 4-메틸-1-펜탄올, 4-메틸-2-펜탄올, 4-메틸-3-펜탄올, 1-헵탄올, 시클로헥산올 및 옥탄올로부터 선택되는 1종 단독 또는 2종 이상을 혼합한 것인, 탄소수 3 내지 8의 알킬알코올인 제2 용매를 포함하는 제2 포지티브형 레지스트 재료를 도포하여 제2 레지스트막을 형성하는 공정,
고에너지선으로 노광하는 공정,
베이킹(PEB; Post Exposure Bake) 공정, 및
현상액을 이용하여 상기 제1과 제2 레지스트막을 동시에 현상하여 레지스트 패턴을 형성하는 공정을 포함하는 패턴 형성 방법이며,
상기 제1 레지스트 재료에 이용되는 제1 고분자 화합물이 하기 화학식 (3)으로 표시되는 반복 단위 b2, c1 및 c2를 포함하고,
상기 제2 레지스트 재료에 이용되는 제2 중합체가 하기 화학식 (2)로 표시되는 2,2,2-트리플루오로-1-히드록시에틸기를 갖는 반복 단위 a와, 산불안정기를 갖는 반복 단위 b1을 포함하는 공중합체인 것을 특징으로 하는, 패턴 형성 방법.
(식 중, R6, R9, R13은 각각 수소 원자 또는 메틸기이고, X1, X2, X3은 각각 단결합 또는 -C(=O)-O-이고, X2는 -C(=O)-NH-일 수도 있고, R7, R10, R14는 각각 단결합 또는 탄소수 1 내지 6의 직쇄상 또는 분지상의 알킬렌기이고, R7, R10, R14는 에테르기, 에스테르기 또는 락톤환을 가질 수도 있고, R8, R11, R15는 각각 산불안정기이고, R12는 수소 원자, 불소 원자 또는 탄소수 1 내지 6의 직쇄상, 분지상 또는 환상의 알킬기이고, p, s는 1 또는 2이고, q는 0 내지 4의 정수이고, r1, r2는 0 내지 2의 정수이고, 0≤b2<1.0, 0≤c1<1.0, 0≤c2<1.0, 0.2<b2+c1+c2≤1.0의 범위이다)
(식 중, R1은 수소 원자 또는 메틸기이고, m은 1 또는 2이고, m이 1인 경우, R2는 탄소수 1 내지 10의 직쇄상, 분지상 또는 환상의 알킬렌기이고, 에스테르기, 에테르기, 히드록시기 또는 불소 원자를 가질 수도 있고, m이 2인 경우, 상기 알킬렌기로부터 수소 원자가 1개 이탈한 기이고, R2는 R3과 결합하여 환을 형성할 수도 있고, R3은 수소 원자, 불소 원자, 메틸기, 트리플루오로메틸기 또는 디플루오로메틸기이고, R4는 수소 원자 또는 메틸기이고, R5는 산불안정기이고, 0<a<1.0, 0<b1<1.0, 0<a+b1<1.0의 범위이다)
- 삭제
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US20120108043A1 (en) | 2012-05-03 |
TWI491990B (zh) | 2015-07-11 |
US8623590B2 (en) | 2014-01-07 |
JP2012098520A (ja) | 2012-05-24 |
JP5278406B2 (ja) | 2013-09-04 |
KR20120046695A (ko) | 2012-05-10 |
TW201234112A (en) | 2012-08-16 |
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