JP4488194B2 - レジスト組成物 - Google Patents
レジスト組成物 Download PDFInfo
- Publication number
- JP4488194B2 JP4488194B2 JP2004238162A JP2004238162A JP4488194B2 JP 4488194 B2 JP4488194 B2 JP 4488194B2 JP 2004238162 A JP2004238162 A JP 2004238162A JP 2004238162 A JP2004238162 A JP 2004238162A JP 4488194 B2 JP4488194 B2 JP 4488194B2
- Authority
- JP
- Japan
- Prior art keywords
- group
- resist
- hydroxyisopropyl
- compound
- acid
- 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 - Lifetime
Links
- 239000000203 mixture Substances 0.000 title claims description 52
- -1 alkoxymethylated melamine compound Chemical class 0.000 claims description 179
- 150000001875 compounds Chemical class 0.000 claims description 100
- 239000002253 acid Substances 0.000 claims description 82
- 125000004432 carbon atom Chemical group C* 0.000 claims description 45
- 239000003431 cross linking reagent Substances 0.000 claims description 38
- 239000000758 substrate Substances 0.000 claims description 33
- 125000000217 alkyl group Chemical group 0.000 claims description 24
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 22
- 230000005855 radiation Effects 0.000 claims description 22
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 20
- 238000010894 electron beam technology Methods 0.000 claims description 19
- 238000005530 etching Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000010884 ion-beam technique Methods 0.000 claims description 13
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 12
- 125000003545 alkoxy group Chemical group 0.000 claims description 10
- 239000003513 alkali Substances 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 5
- 125000002252 acyl group Chemical group 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims description 4
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 claims 1
- 229910052757 nitrogen Inorganic materials 0.000 description 57
- 239000010408 film Substances 0.000 description 35
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 25
- 238000004090 dissolution Methods 0.000 description 17
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 17
- 239000003795 chemical substances by application Substances 0.000 description 16
- 239000000243 solution Substances 0.000 description 16
- 125000001424 substituent group Chemical group 0.000 description 16
- 229920005989 resin Polymers 0.000 description 15
- 239000011347 resin Substances 0.000 description 15
- 239000007983 Tris buffer Substances 0.000 description 14
- 239000007864 aqueous solution Substances 0.000 description 14
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 14
- 150000002989 phenols Chemical class 0.000 description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- 125000004183 alkoxy alkyl group Chemical group 0.000 description 12
- 238000009792 diffusion process Methods 0.000 description 12
- 125000003118 aryl group Chemical group 0.000 description 10
- 238000004132 cross linking Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene-acid Natural products C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 10
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 10
- 230000035945 sensitivity Effects 0.000 description 10
- 239000004094 surface-active agent Substances 0.000 description 10
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 9
- CZZYITDELCSZES-UHFFFAOYSA-N diphenylmethane Chemical compound C=1C=CC=CC=1CC1=CC=CC=C1 CZZYITDELCSZES-UHFFFAOYSA-N 0.000 description 9
- VPVSTMAPERLKKM-UHFFFAOYSA-N glycoluril Chemical class N1C(=O)NC2NC(=O)NC21 VPVSTMAPERLKKM-UHFFFAOYSA-N 0.000 description 9
- 238000011161 development Methods 0.000 description 8
- 230000018109 developmental process Effects 0.000 description 8
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 description 8
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 8
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 8
- AGJAUFUNZWHLKE-UHFFFAOYSA-N (2E,4E)-N-isobutyl-2,4-tetradecadienamide Natural products CCCCCCCCCC=CC=CC(=O)NCC(C)C AGJAUFUNZWHLKE-UHFFFAOYSA-N 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 7
- 239000004593 Epoxy Substances 0.000 description 7
- 239000004305 biphenyl Substances 0.000 description 7
- 235000010290 biphenyl Nutrition 0.000 description 7
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Natural products OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 6
- 239000000654 additive Substances 0.000 description 6
- 125000006165 cyclic alkyl group Chemical group 0.000 description 6
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 238000007747 plating Methods 0.000 description 6
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 6
- SICLLPHPVFCNTJ-UHFFFAOYSA-N 1,1,1',1'-tetramethyl-3,3'-spirobi[2h-indene]-5,5'-diol Chemical compound C12=CC(O)=CC=C2C(C)(C)CC11C2=CC(O)=CC=C2C(C)(C)C1 SICLLPHPVFCNTJ-UHFFFAOYSA-N 0.000 description 5
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 5
- 125000004849 alkoxymethyl group Chemical group 0.000 description 5
- 125000003710 aryl alkyl group Chemical group 0.000 description 5
- 239000004202 carbamide Substances 0.000 description 5
- 235000019441 ethanol Nutrition 0.000 description 5
- 150000002790 naphthalenes Chemical class 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- HIXDQWDOVZUNNA-UHFFFAOYSA-N 2-(3,4-dimethoxyphenyl)-5-hydroxy-7-methoxychromen-4-one Chemical compound C=1C(OC)=CC(O)=C(C(C=2)=O)C=1OC=2C1=CC=C(OC)C(OC)=C1 HIXDQWDOVZUNNA-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 229940116333 ethyl lactate Drugs 0.000 description 4
- 125000005843 halogen group Chemical group 0.000 description 4
- 125000004184 methoxymethyl group Chemical group [H]C([H])([H])OC([H])([H])* 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
- 229920002120 photoresistant polymer Polymers 0.000 description 4
- 235000013824 polyphenols Nutrition 0.000 description 4
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 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
- 239000010703 silicon Substances 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- WDVMGVVMIHWWOF-UHFFFAOYSA-N 1,1,1',1',6,6'-hexamethyl-3,3'-spirobi[2h-indene]-5,5'-diol Chemical compound C1C(C)(C)C2=CC(C)=C(O)C=C2C1(CC1(C)C)C2=C1C=C(C)C(O)=C2 WDVMGVVMIHWWOF-UHFFFAOYSA-N 0.000 description 3
- POFMQEVZKZVAPQ-UHFFFAOYSA-N 1,1,1',1'-tetramethyl-3,3'-spirobi[2h-indene]-5,5',6,6'-tetrol Chemical compound C12=CC(O)=C(O)C=C2C(C)(C)CC11C2=CC(O)=C(O)C=C2C(C)(C)C1 POFMQEVZKZVAPQ-UHFFFAOYSA-N 0.000 description 3
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- 241000284156 Clerodendrum quadriloculare Species 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- RWRDLPDLKQPQOW-UHFFFAOYSA-N Pyrrolidine Chemical compound C1CCNC1 RWRDLPDLKQPQOW-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 150000003973 alkyl amines Chemical class 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 125000003368 amide group Chemical group 0.000 description 3
- 150000007514 bases Chemical class 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 125000000753 cycloalkyl group Chemical group 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 125000003700 epoxy group Chemical group 0.000 description 3
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 3
- 125000005745 ethoxymethyl group Chemical group [H]C([H])([H])C([H])([H])OC([H])([H])* 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 3
- JESXATFQYMPTNL-UHFFFAOYSA-N mono-hydroxyphenyl-ethylene Natural products OC1=CC=CC=C1C=C JESXATFQYMPTNL-UHFFFAOYSA-N 0.000 description 3
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
- 239000002736 nonionic surfactant Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 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 description 2
- GWEHVDNNLFDJLR-UHFFFAOYSA-N 1,3-diphenylurea Chemical compound C=1C=CC=CC=1NC(=O)NC1=CC=CC=C1 GWEHVDNNLFDJLR-UHFFFAOYSA-N 0.000 description 2
- RXYPXQSKLGGKOL-UHFFFAOYSA-N 1,4-dimethylpiperazine Chemical compound CN1CCN(C)CC1 RXYPXQSKLGGKOL-UHFFFAOYSA-N 0.000 description 2
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 description 2
- GSMHKHIXWAAXIP-UHFFFAOYSA-N 2-[5,8-bis(2-hydroxypropan-2-yl)naphthalen-2-yl]propan-2-ol Chemical compound CC(O)(C)C1=CC=C(C(C)(C)O)C2=CC(C(C)(O)C)=CC=C21 GSMHKHIXWAAXIP-UHFFFAOYSA-N 0.000 description 2
- BSKHPKMHTQYZBB-UHFFFAOYSA-N 2-methylpyridine Chemical compound CC1=CC=CC=N1 BSKHPKMHTQYZBB-UHFFFAOYSA-N 0.000 description 2
- ZQAXBTFXHKKQHN-UHFFFAOYSA-N 2-n-(propoxymethyl)-1,3,5-triazine-2,4,6-triamine Chemical compound CCCOCNC1=NC(N)=NC(N)=N1 ZQAXBTFXHKKQHN-UHFFFAOYSA-N 0.000 description 2
- BDCFWIDZNLCTMF-UHFFFAOYSA-N 2-phenylpropan-2-ol Chemical compound CC(C)(O)C1=CC=CC=C1 BDCFWIDZNLCTMF-UHFFFAOYSA-N 0.000 description 2
- VQGHOUODWALEFC-UHFFFAOYSA-N 2-phenylpyridine Chemical compound C1=CC=CC=C1C1=CC=CC=N1 VQGHOUODWALEFC-UHFFFAOYSA-N 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 2
- JJYPMNFTHPTTDI-UHFFFAOYSA-N 3-methylaniline Chemical compound CC1=CC=CC(N)=C1 JJYPMNFTHPTTDI-UHFFFAOYSA-N 0.000 description 2
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical compound C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 2
- BWQOXWHQZXVXSD-UHFFFAOYSA-N 4,4,4',4'-tetramethyl-2,2'-spirobi[3h-chromene]-7,7'-diol Chemical compound O1C2=CC(O)=CC=C2C(C)(C)CC11OC2=CC(O)=CC=C2C(C)(C)C1 BWQOXWHQZXVXSD-UHFFFAOYSA-N 0.000 description 2
- JVZRCNQLWOELDU-UHFFFAOYSA-N 4-Phenylpyridine Chemical compound C1=CC=CC=C1C1=CC=NC=C1 JVZRCNQLWOELDU-UHFFFAOYSA-N 0.000 description 2
- HCFAJYNVAYBARA-UHFFFAOYSA-N 4-heptanone Chemical compound CCCC(=O)CCC HCFAJYNVAYBARA-UHFFFAOYSA-N 0.000 description 2
- XLSZMDLNRCVEIJ-UHFFFAOYSA-N 4-methylimidazole Chemical compound CC1=CNC=N1 XLSZMDLNRCVEIJ-UHFFFAOYSA-N 0.000 description 2
- FKNQCJSGGFJEIZ-UHFFFAOYSA-N 4-methylpyridine Chemical compound CC1=CC=NC=C1 FKNQCJSGGFJEIZ-UHFFFAOYSA-N 0.000 description 2
- KDCGOANMDULRCW-UHFFFAOYSA-N 7H-purine Chemical compound N1=CNC2=NC=NC2=C1 KDCGOANMDULRCW-UHFFFAOYSA-N 0.000 description 2
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical compound CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 2
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- KXDAEFPNCMNJSK-UHFFFAOYSA-N Benzamide Chemical compound NC(=O)C1=CC=CC=C1 KXDAEFPNCMNJSK-UHFFFAOYSA-N 0.000 description 2
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 2
- JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical compound CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- OHLUUHNLEMFGTQ-UHFFFAOYSA-N N-methylacetamide Chemical compound CNC(C)=O OHLUUHNLEMFGTQ-UHFFFAOYSA-N 0.000 description 2
- AFBPFSWMIHJQDM-UHFFFAOYSA-N N-methylaniline Chemical compound CNC1=CC=CC=C1 AFBPFSWMIHJQDM-UHFFFAOYSA-N 0.000 description 2
- ATHHXGZTWNVVOU-UHFFFAOYSA-N N-methylformamide Chemical compound CNC=O ATHHXGZTWNVVOU-UHFFFAOYSA-N 0.000 description 2
- PVNIIMVLHYAWGP-UHFFFAOYSA-N Niacin Chemical compound OC(=O)C1=CC=CN=C1 PVNIIMVLHYAWGP-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 description 2
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- KYQCOXFCLRTKLS-UHFFFAOYSA-N Pyrazine Chemical compound C1=CN=CC=N1 KYQCOXFCLRTKLS-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- CWRYPZZKDGJXCA-UHFFFAOYSA-N acenaphthene Chemical compound C1=CC(CC2)=C3C2=CC=CC3=C1 CWRYPZZKDGJXCA-UHFFFAOYSA-N 0.000 description 2
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- DZBUGLKDJFMEHC-UHFFFAOYSA-N acridine Chemical compound C1=CC=CC2=CC3=CC=CC=C3N=C21 DZBUGLKDJFMEHC-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 125000002947 alkylene group Chemical group 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- GGNQRNBDZQJCCN-UHFFFAOYSA-N benzene-1,2,4-triol Chemical compound OC1=CC=C(O)C(O)=C1 GGNQRNBDZQJCCN-UHFFFAOYSA-N 0.000 description 2
- QMKYBPDZANOJGF-UHFFFAOYSA-N benzene-1,3,5-tricarboxylic acid Chemical compound OC(=O)C1=CC(C(O)=O)=CC(C(O)=O)=C1 QMKYBPDZANOJGF-UHFFFAOYSA-N 0.000 description 2
- 239000012965 benzophenone Substances 0.000 description 2
- 125000006267 biphenyl group Chemical group 0.000 description 2
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- 125000005270 trialkylamine group Chemical group 0.000 description 1
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- ZKWDCFPLNQTHSH-UHFFFAOYSA-N tribromoisocyanuric acid Chemical compound BrN1C(=O)N(Br)C(=O)N(Br)C1=O ZKWDCFPLNQTHSH-UHFFFAOYSA-N 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- WTVXIBRMWGUIMI-UHFFFAOYSA-N trifluoro($l^{1}-oxidanylsulfonyl)methane Chemical group [O]S(=O)(=O)C(F)(F)F WTVXIBRMWGUIMI-UHFFFAOYSA-N 0.000 description 1
- IZBIRHQNPWSIET-UHFFFAOYSA-M trifluoromethanesulfonate;tris(4-fluorophenyl)sulfanium Chemical compound [O-]S(=O)(=O)C(F)(F)F.C1=CC(F)=CC=C1[S+](C=1C=CC(F)=CC=1)C1=CC=C(F)C=C1 IZBIRHQNPWSIET-UHFFFAOYSA-M 0.000 description 1
- OXWFVYDECNDRMT-UHFFFAOYSA-M trifluoromethanesulfonate;tris(4-methoxyphenyl)sulfanium Chemical compound [O-]S(=O)(=O)C(F)(F)F.C1=CC(OC)=CC=C1[S+](C=1C=CC(OC)=CC=1)C1=CC=C(OC)C=C1 OXWFVYDECNDRMT-UHFFFAOYSA-M 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
- XZZGCKRBJSPNEF-UHFFFAOYSA-M triphenylsulfanium;acetate Chemical compound CC([O-])=O.C1=CC=CC=C1[S+](C=1C=CC=CC=1)C1=CC=CC=C1 XZZGCKRBJSPNEF-UHFFFAOYSA-M 0.000 description 1
- KOFQUBYAUWJFIT-UHFFFAOYSA-M triphenylsulfanium;hydroxide Chemical compound [OH-].C1=CC=CC=C1[S+](C=1C=CC=CC=1)C1=CC=CC=C1 KOFQUBYAUWJFIT-UHFFFAOYSA-M 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
- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Materials For Photolithography (AREA)
- Polyethers (AREA)
Description
一方、スピロビインダンやスピロビクロマンの骨格を持つ化合物は酸化防止剤(特許文献15参照)、レジスト組成物における酸発生剤(特許文献16参照)や添加剤(特許文献17参照)として使用できることが開示されている。しかし、化学増幅型レジストにおいて、感光時に酸発生剤より発生した酸を触媒として架橋剤により架橋するベース材料として使用できることは知られていない。
すなわち本発明は、式(1)で示される化合物(A)、可視光線、紫外線、エキシマレーザー、電子線、X線、およびイオンビームからなる群から選ばれるいずれかの放射線の照射により直接的又は間接的に酸を発生する酸発生剤(B)、ならびに酸架橋剤(C)を含むことを特徴とするレジスト組成物に関するものである。
さらに、本発明は、基板上に前記レジスト組成物からなるレジスト膜が形成されているレジスト基板、前記レジスト組成物からなるレジスト膜をパターン形成したパターン形成基板を提供する。
さらに、本発明は、前記レジスト組成物を基板上に塗布してレジスト膜を形成する工程、レジスト膜を可視光線、紫外線、エキシマレーザー、電子線、X線およびイオンビームから選ばれるいずれかの放射線を照射して露光する工程、及び、必要に応じて加熱処理した後、露光レジスト膜を現像液を用いて現像する工程とを含むことを特徴とするレジストパターン形成方法を提供する。
さらに、本発明は、前記レジスト組成物を基板上に塗布してレジスト膜を形成する工程、レジスト膜を加熱処理する工程、加熱処理したレジスト膜を可視光線、紫外線、エキシマレーザー、電子線、X線、およびイオンビームからなる群から選ばれるいずれかの放射線を照射して露光する工程、及び、必要に応じて加熱処理した後、露光レジスト膜をアルカリ現像液を用いて現像する工程とを含むことを特徴とするレジストパターン形成方法を提供する。
さらに、本発明は、前記パターン形成方法を行った後、エッチングすることにより得られることを特徴とするパターン配線基板を提供する。
本発明のレジスト組成物は、式(1)で示される化合物(A)、酸発生剤(B)、酸架橋剤(C)を含む。式(1)中,R1〜R8は独立に水素原子またはヒドロキシ基であって、少なくとも二つはヒドロキシ基である。R9〜R12は独立に水素原子またはアルキル基である。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、ブチル基、ペンチル基、へキシル基、シクロヘキシル基等が例示される。なかでも水素原子、メチル基、エチル基が好ましい。
式(1)中,Zは酸素原子もしくは単結合であるが,ここで云う単結合とは他の構成単位同士を直接連結することを意味する。
本発明においては、放射線照射により光酸発生剤から生じた酸のレジスト被膜中における拡散現象を制御して、未露光領域での好ましくない化学反応を制御する作用等を有する酸拡散制御剤を、配合させても良い。この様な酸拡散制御剤を使用することにより、レジスト組成物の貯蔵安定性が向上し、また解像度が向上するとともに、電子線照射前の引き置き時間、電子線照射後の引き置き時間の変動によるレジストパターンの線幅変化を抑えることができ、プロセス安定性に極めて優れたものとなる。
溶解制御剤は、化合物(A)がアルカリ等の現像液に対する溶解性が高すぎる場合に、その溶解性を制御して現像時の溶解速度を適度に減少させる作用を有する成分である。このような溶解制御剤としては、レジスト膜の焼成、放射線照射、現像等の工程において化学変化しないものが好ましい。
溶解促進剤は、化合物(A)のアルカリ等の現像液に対する溶解性が低すぎる場合に、その溶解性を高めて、現像時の化合物(A)の溶解速度を適度に増大させる作用を有する成分である。このような溶解促進剤としては、レジスト膜の焼成、電子線照射、現像等の工程において化学変化しないものが好ましい。前記溶解促進剤としては、例えば、ベンゼン環を2〜6程度有する低分子量のフェノール性化合物を挙げることができ、具体的には、例えば、ビスフェノール類、トリス(ヒドロキシフェニル)メタン等を挙げることができる。これらの溶解促進剤は、単独でまたは2種以上を混合して使用することができる。
増感剤は、照射された放射線のエネルギーを吸収して、そのエネルギーを光酸発生剤に伝達し、それにより酸の生成量を増加する作用を有し、レジストの見掛けの感度を向上させる成分である。このような増感剤としては、例えば、ベンゾフェノン類、ビアセチル類、ピレン類、フェノチアジン類、フルオレン類等を挙げることができるが、特に限定はされない。
界面活性剤は、本発明のレジスト組成物の塗布性やストリエーション、レジストとしての現像性等を改良する作用を有する成分である。このような界面活性剤としては、アニオン系、カチオン系、ノニオン系あるいは両性のいずれでも使用することができる。これらのうち、好ましい界面活性剤はノニオン系界面活性剤である。ノニオン系界面活性剤は、感放射線性組成物に用いる溶剤との親和性がよく、より効果がある。ノニオン系界面活性剤の例としては、ポリオキシエチレン高級アルキルエーテル類、ポリオキシエチレン高級アルキルフェニルエーテル類、ポリエチレングリコールの高級脂肪酸ジエステル類等の他、以下商品名で、エフトップ(ジェムコ社製)、メガファック(大日本インキ化学工業社製)、フロラード(住友スリーエム社製)、アサヒガード、サーフロン(以上、旭硝子社製)、ペポール(東邦化学工業社製)、KP(信越化学工業社製)、ポリフロー(共栄社油脂化学工業社製)等の各シリーズを挙げることができるが、特に限定はされない。
更に、本発明のレジスト組成物には、本発明の目的を阻害しない範囲で、必要に応じて、上記酸拡散制御剤、溶解促進剤、溶解制御剤、増感剤、及び界面活性剤以外のその他の添加剤を1種又は2種以上配合することができる。その他の添加剤としては、例えば、染料、顔料、及び接着助剤等が挙げられる。例えば、染料又は顔料を配合すると、露光部の潜像を可視化させて、露光時のハレーションの影響を緩和できるので好ましい。また、接着助剤を配合すると、基板との接着性を改善することができるので好ましい。更に、他の添加剤としては、ハレーション防止剤、保存安定剤、消泡剤、形状改良剤等、具体的には4−ヒドロキシ−4’−メチルカルコン等を挙げることができる。
またレジストパターンが形成された配線基板は、多層配線基板でも良く、小径スルーホールを有していても良い。
(1)レジスト膜の成膜性評価
10×10mm角のレジスト膜を100区画に分割し、レジスト膜を形成していない区画および結晶化している区画を数え、下記基準で評価した。
ゼロ:良好
1箇所以上:不良
(2)レジストパターンの5μmL&S
現像後のレジストパターンを光学顕微鏡で観察し、5μmのラインアンドスペースの形成の有無を確認した。
(3)レジストパターンの基板密着性
10×10mm角のレジスト膜を100区画に分割し、レジスト膜のはがれている区画を数え、下記基準で評価した。
ゼロ:良好
1箇所以上:不良
(4)レジストパターンのエッチング耐性
シリコンウェハー上にアルミニウム(SiおよびCuとの合金)薄膜(約200nm)を日本真空技術製SH−550型ハイレートスパッタリング装置を用いて蒸着させた。その上にレジスト膜を形成し、露光、現像によりパターン形成を行った後、エッチングを行った。
エッチング液:0.1N水酸化ナトリウム水溶液
エッチング時間:3min
上記条件でエッチングを行ったのち、純水で洗浄、アセトンで残留レジストを溶解した。その際のエッチングパターンを光学顕微鏡で観察し、パターンの形状を目視で判断した。
化合物(A)として式(23)に示す5,5’,6,6’−テトラヒドロキシ−3,3,3’,3’−テトラメチル−1,1’−スピロビインダン(東京化成工業製試薬)(0.067g)、酸発生剤(B)として1,2−ナフトキノン−2−ジアジド−5−スルホン酸ナトリウム(0.01g)、酸架橋剤(C)としてニカラックMW−100LM(三和ケミカル(株)製)(0.033g)、溶媒(乳酸エチル/プロピレングリコールモノメチルエーテルアセテート=5/2)(3.89g)の均一溶液としたのち、孔径0.2μmのテフロン(登録商標)製メンブランフィルターで濾過して、レジスト溶液を調製した。
100℃、10分間オーブン中で露光前ベーク(PB)して、厚さ0.2μmのレジスト膜を形成した。該レジスト膜に波長365nmのi線を220mJ/cm2の条件で照射し露光した。その後、175℃、10分間の条件でオーブン中で露光後ベークし、テトラメチルアンモニウムヒドロキシド2.38重量%水溶液中5秒間で静置法により、23℃で現像を行った。その後、水で30秒間洗浄し、乾燥して、ネガ型のレジストパターンを形成した。パターン形状が良好な5μmL&Sパターンが得られた。レジストパターンの基板密着性は良好であった。
また、レジスト溶液をアルミニウム薄膜を蒸着したシコンウェハー上に回転塗布し、レジスト膜を形成し、パターン形成を行い、エッチング耐性を評価したところ、良好な結果であった。
Claims (11)
- 式(1)中のR1〜R4が水素原子、R9〜R12がメチル基であり、R5〜R8がヒドロキシ基である請求項1記載の感放射線性組成物。
- 前記化合物(A)を2種以上含むことを特徴とする請求項1または2に記載のレジスト組成物。
- 全固形物中、化合物(A)65〜96.9重量%、酸発生剤(B)0.1〜30重量%、酸架橋剤(C)0.3〜34.9重量%、その他の成分(D)0〜30重量%である請求項1〜4のいずれかに記載のレジスト組成物。
- 全固形物中、化合物(A)65〜96.9重量%、酸発生剤(B)0.1〜30重量%、酸架橋剤(C)0.6〜30重量%、その他の成分(D)0重量%である請求項1〜4のいずれかに記載のレジスト組成物。
- 基板上に請求項1〜6のいずれかに記載のレジスト組成物からなるレジスト膜が形成されていることを特徴とするレジスト基板。
- 請求項1〜6のいずれかに記載のレジスト組成物からなるレジスト膜をパターン形成したことを特徴とするパターン形成基板。
- 請求項1〜6のいずれかに記載のレジスト組成物を基板上に塗布してレジスト膜を形成する工程、レジスト膜を可視光線、紫外線、エキシマレーザー、電子線、X線、およびイオンビームからなる群から選ばれるいずれかの放射線を照射して露光する工程、及び、必要に応じて加熱処理した後、露光レジスト膜をアルカリ現像液を用いて現像する工程とを含むことを特徴とするレジストパターン形成方法。
- 請求項1〜6のいずれかに記載のレジスト組成物を基板上に塗布してレジスト膜を形成する工程、レジスト膜を加熱処理する工程、加熱処理したレジスト膜を可視光線、紫外線、エキシマレーザー、電子線、X線、およびイオンビームからなる群から選ばれるいずれかの放射線を照射して露光する工程、及び、必要に応じて加熱処理した後、露光レジスト膜をアルカリ現像液を用いて現像する工程とを含むことを特徴とするレジストパターン形成方法。
- 請求項9または請求項10に記載のパターン形成方法を行った後、エッチングすることにより得られることを特徴とするパターン配線基板。
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