JP4240282B2 - Photosensitive resin composition, photosensitive element using the same, resist pattern manufacturing method, and printed wiring board manufacturing method - Google Patents
Photosensitive resin composition, photosensitive element using the same, resist pattern manufacturing method, and printed wiring board manufacturing method Download PDFInfo
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- JP4240282B2 JP4240282B2 JP2002308566A JP2002308566A JP4240282B2 JP 4240282 B2 JP4240282 B2 JP 4240282B2 JP 2002308566 A JP2002308566 A JP 2002308566A JP 2002308566 A JP2002308566 A JP 2002308566A JP 4240282 B2 JP4240282 B2 JP 4240282B2
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- resin composition
- photosensitive resin
- weight
- component
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- 239000011342 resin composition Substances 0.000 title claims description 54
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 37
- 239000011230 binding agent Substances 0.000 claims description 21
- 229920000642 polymer Polymers 0.000 claims description 21
- 150000001875 compounds Chemical class 0.000 claims description 20
- 238000011161 development Methods 0.000 claims description 19
- 238000007747 plating Methods 0.000 claims description 18
- 239000000178 monomer Substances 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 10
- 238000005530 etching Methods 0.000 claims description 9
- 239000003999 initiator Substances 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- 238000010030 laminating Methods 0.000 claims description 5
- 238000007334 copolymerization reaction Methods 0.000 claims description 3
- JPEHDFHASVOTFH-UHFFFAOYSA-N 9-(4-acridin-9-ylheptan-4-yl)acridine Chemical compound C1=CC=CC2=NC3=CC=CC=C3C(=C12)C(CCC)(CCC)C=1C2=CC=CC=C2N=C2C=CC=CC12 JPEHDFHASVOTFH-UHFFFAOYSA-N 0.000 claims 1
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 54
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 43
- 239000001294 propane Substances 0.000 description 27
- -1 methacryloyl group Chemical group 0.000 description 26
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 24
- 239000000243 solution Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 17
- 239000007864 aqueous solution Substances 0.000 description 12
- 239000000126 substance Substances 0.000 description 11
- 206010034972 Photosensitivity reaction Diseases 0.000 description 9
- 230000036211 photosensitivity Effects 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 239000003960 organic solvent Substances 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 6
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 125000000217 alkyl group Chemical group 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 150000003673 urethanes Chemical class 0.000 description 4
- 150000007934 α,β-unsaturated carboxylic acids Chemical class 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000002518 antifoaming agent Substances 0.000 description 3
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical class C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 3
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 3
- 125000001424 substituent group Chemical group 0.000 description 3
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- FRASJONUBLZVQX-UHFFFAOYSA-N 1,4-naphthoquinone Chemical compound C1=CC=C2C(=O)C=CC(=O)C2=C1 FRASJONUBLZVQX-UHFFFAOYSA-N 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 2
- 239000004808 2-ethylhexylester Substances 0.000 description 2
- VVBLNCFGVYUYGU-UHFFFAOYSA-N 4,4'-Bis(dimethylamino)benzophenone Chemical compound C1=CC(N(C)C)=CC=C1C(=O)C1=CC=C(N(C)C)C=C1 VVBLNCFGVYUYGU-UHFFFAOYSA-N 0.000 description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- YDTZWEXADJYOBJ-UHFFFAOYSA-N 9-(7-acridin-9-ylheptyl)acridine Chemical compound C1=CC=C2C(CCCCCCCC=3C4=CC=CC=C4N=C4C=CC=CC4=3)=C(C=CC=C3)C3=NC2=C1 YDTZWEXADJYOBJ-UHFFFAOYSA-N 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- MJVAVZPDRWSRRC-UHFFFAOYSA-N Menadione Chemical compound C1=CC=C2C(=O)C(C)=CC(=O)C2=C1 MJVAVZPDRWSRRC-UHFFFAOYSA-N 0.000 description 2
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- NPKSPKHJBVJUKB-UHFFFAOYSA-N N-phenylglycine Chemical compound OC(=O)CNC1=CC=CC=C1 NPKSPKHJBVJUKB-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N acrylic acid methyl ester Natural products COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 229910021538 borax Inorganic materials 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 239000000539 dimer Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 2
- 125000005843 halogen group Chemical group 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 2
- WMFOQBRAJBCJND-UHFFFAOYSA-M lithium hydroxide Inorganic materials [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000000016 photochemical curing Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920006254 polymer film Polymers 0.000 description 2
- 229920001451 polypropylene glycol Polymers 0.000 description 2
- 238000010526 radical polymerization reaction Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 239000004328 sodium tetraborate Substances 0.000 description 2
- 235000010339 sodium tetraborate Nutrition 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 150000003440 styrenes Chemical group 0.000 description 2
- 150000005846 sugar alcohols Polymers 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 2
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 125000006273 (C1-C3) alkyl group Chemical group 0.000 description 1
- CDUQMGQIHYISOP-RMKNXTFCSA-N (e)-2-cyano-3-phenylprop-2-enoic acid Chemical compound OC(=O)C(\C#N)=C\C1=CC=CC=C1 CDUQMGQIHYISOP-RMKNXTFCSA-N 0.000 description 1
- FWUIHQFQLSWYED-ARJAWSKDSA-N (z)-4-oxo-4-propan-2-yloxybut-2-enoic acid Chemical compound CC(C)OC(=O)\C=C/C(O)=O FWUIHQFQLSWYED-ARJAWSKDSA-N 0.000 description 1
- WBYWAXJHAXSJNI-VOTSOKGWSA-M .beta-Phenylacrylic acid Natural products [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 1
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 1
- XHXSXTIIDBZEKB-UHFFFAOYSA-N 1,2,3,4,5,6,7,8-octamethylanthracene-9,10-dione Chemical compound CC1=C(C)C(C)=C2C(=O)C3=C(C)C(C)=C(C)C(C)=C3C(=O)C2=C1C XHXSXTIIDBZEKB-UHFFFAOYSA-N 0.000 description 1
- SCEFCWXRXJZWHE-UHFFFAOYSA-N 1,2,3-tribromo-4-(2,3,4-tribromophenyl)sulfonylbenzene Chemical compound BrC1=C(Br)C(Br)=CC=C1S(=O)(=O)C1=CC=C(Br)C(Br)=C1Br SCEFCWXRXJZWHE-UHFFFAOYSA-N 0.000 description 1
- GJZFGDYLJLCGHT-UHFFFAOYSA-N 1,2-diethylthioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=C(CC)C(CC)=CC=C3SC2=C1 GJZFGDYLJLCGHT-UHFFFAOYSA-N 0.000 description 1
- 229940008841 1,6-hexamethylene diisocyanate Drugs 0.000 description 1
- LMGYOBQJBQAZKC-UHFFFAOYSA-N 1-(2-ethylphenyl)-2-hydroxy-2-phenylethanone Chemical compound CCC1=CC=CC=C1C(=O)C(O)C1=CC=CC=C1 LMGYOBQJBQAZKC-UHFFFAOYSA-N 0.000 description 1
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- UZKWTJUDCOPSNM-UHFFFAOYSA-N 1-ethenoxybutane Chemical compound CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 1
- IURPUANFARVGCR-UHFFFAOYSA-N 1-heptylacridine Chemical compound C1(=CC=CC2=NC3=CC=CC=C3C=C12)CCCCCCC IURPUANFARVGCR-UHFFFAOYSA-N 0.000 description 1
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 1
- 125000004206 2,2,2-trifluoroethyl group Chemical group [H]C([H])(*)C(F)(F)F 0.000 description 1
- KIJPZYXCIHZVGP-UHFFFAOYSA-N 2,3-dimethylanthracene-9,10-dione Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=C(C)C(C)=C2 KIJPZYXCIHZVGP-UHFFFAOYSA-N 0.000 description 1
- UCSGWEMRGIONEW-UHFFFAOYSA-N 2-(2-chlorophenyl)-4,5-bis(2-methoxyphenyl)-1h-imidazole Chemical class COC1=CC=CC=C1C1=C(C=2C(=CC=CC=2)OC)NC(C=2C(=CC=CC=2)Cl)=N1 UCSGWEMRGIONEW-UHFFFAOYSA-N 0.000 description 1
- NSWNXQGJAPQOID-UHFFFAOYSA-N 2-(2-chlorophenyl)-4,5-diphenyl-1h-imidazole Chemical class ClC1=CC=CC=C1C1=NC(C=2C=CC=CC=2)=C(C=2C=CC=CC=2)N1 NSWNXQGJAPQOID-UHFFFAOYSA-N 0.000 description 1
- UIHRWPYOTGCOJP-UHFFFAOYSA-N 2-(2-fluorophenyl)-4,5-diphenyl-1h-imidazole Chemical class FC1=CC=CC=C1C1=NC(C=2C=CC=CC=2)=C(C=2C=CC=CC=2)N1 UIHRWPYOTGCOJP-UHFFFAOYSA-N 0.000 description 1
- SBASXUCJHJRPEV-UHFFFAOYSA-N 2-(2-methoxyethoxy)ethanol Chemical compound COCCOCCO SBASXUCJHJRPEV-UHFFFAOYSA-N 0.000 description 1
- XIOGJAPOAUEYJO-UHFFFAOYSA-N 2-(2-methoxyphenyl)-4,5-diphenyl-1h-imidazole Chemical class COC1=CC=CC=C1C1=NC(C=2C=CC=CC=2)=C(C=2C=CC=CC=2)N1 XIOGJAPOAUEYJO-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- DVVXXHVHGGWWPE-UHFFFAOYSA-N 2-(dimethylamino)benzoic acid Chemical compound CN(C)C1=CC=CC=C1C(O)=O DVVXXHVHGGWWPE-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- UHFFVFAKEGKNAQ-UHFFFAOYSA-N 2-benzyl-2-(dimethylamino)-1-(4-morpholin-4-ylphenyl)butan-1-one Chemical compound C=1C=C(N2CCOCC2)C=CC=1C(=O)C(CC)(N(C)C)CC1=CC=CC=C1 UHFFVFAKEGKNAQ-UHFFFAOYSA-N 0.000 description 1
- KMNCBSZOIQAUFX-UHFFFAOYSA-N 2-ethoxy-1,2-diphenylethanone Chemical compound C=1C=CC=CC=1C(OCC)C(=O)C1=CC=CC=C1 KMNCBSZOIQAUFX-UHFFFAOYSA-N 0.000 description 1
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- SJEBAWHUJDUKQK-UHFFFAOYSA-N 2-ethylanthraquinone Chemical compound C1=CC=C2C(=O)C3=CC(CC)=CC=C3C(=O)C2=C1 SJEBAWHUJDUKQK-UHFFFAOYSA-N 0.000 description 1
- VZMLJEYQUZKERO-UHFFFAOYSA-N 2-hydroxy-1-(2-methylphenyl)-2-phenylethanone Chemical compound CC1=CC=CC=C1C(=O)C(O)C1=CC=CC=C1 VZMLJEYQUZKERO-UHFFFAOYSA-N 0.000 description 1
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- BQZJOQXSCSZQPS-UHFFFAOYSA-N 2-methoxy-1,2-diphenylethanone Chemical compound C=1C=CC=CC=1C(OC)C(=O)C1=CC=CC=C1 BQZJOQXSCSZQPS-UHFFFAOYSA-N 0.000 description 1
- AXYQEGMSGMXGGK-UHFFFAOYSA-N 2-phenoxy-1,2-diphenylethanone Chemical compound C=1C=CC=CC=1C(=O)C(C=1C=CC=CC=1)OC1=CC=CC=C1 AXYQEGMSGMXGGK-UHFFFAOYSA-N 0.000 description 1
- NTZCFGZBDDCNHI-UHFFFAOYSA-N 2-phenylanthracene-9,10-dione Chemical compound C=1C=C2C(=O)C3=CC=CC=C3C(=O)C2=CC=1C1=CC=CC=C1 NTZCFGZBDDCNHI-UHFFFAOYSA-N 0.000 description 1
- YTPSFXZMJKMUJE-UHFFFAOYSA-N 2-tert-butylanthracene-9,10-dione Chemical compound C1=CC=C2C(=O)C3=CC(C(C)(C)C)=CC=C3C(=O)C2=C1 YTPSFXZMJKMUJE-UHFFFAOYSA-N 0.000 description 1
- MECNWXGGNCJFQJ-UHFFFAOYSA-N 3-piperidin-1-ylpropane-1,2-diol Chemical compound OCC(O)CN1CCCCC1 MECNWXGGNCJFQJ-UHFFFAOYSA-N 0.000 description 1
- YYVYAPXYZVYDHN-UHFFFAOYSA-N 9,10-phenanthroquinone Chemical compound C1=CC=C2C(=O)C(=O)C3=CC=CC=C3C2=C1 YYVYAPXYZVYDHN-UHFFFAOYSA-N 0.000 description 1
- MTRFEWTWIPAXLG-UHFFFAOYSA-N 9-phenylacridine Chemical compound C1=CC=CC=C1C1=C(C=CC=C2)C2=NC2=CC=CC=C12 MTRFEWTWIPAXLG-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
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- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 0 C*(*)C(ON)=O Chemical compound C*(*)C(ON)=O 0.000 description 1
- MGXHYQAQEKLYFL-UHFFFAOYSA-N C=CC(OC(COCCOCCOCCO)O)=O.N=C=O Chemical compound C=CC(OC(COCCOCCOCCO)O)=O.N=C=O MGXHYQAQEKLYFL-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
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- IDDWCEYQOUUSIT-UHFFFAOYSA-N ClC1=CC=CC=2C(C3=CC=CC=C3C(C12)=O)=O.C1(=CC=CC=C1)C1=CC=2C(C3=CC=CC=C3C(C2C=C1C1=CC=CC=C1)=O)=O Chemical compound ClC1=CC=CC=2C(C3=CC=CC=C3C(C12)=O)=O.C1(=CC=CC=C1)C1=CC=2C(C3=CC=CC=C3C(C2C=C1C1=CC=CC=C1)=O)=O IDDWCEYQOUUSIT-UHFFFAOYSA-N 0.000 description 1
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- 239000012965 benzophenone Substances 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
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- 230000000052 comparative effect Effects 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 125000000332 coumarinyl group Chemical class O1C(=O)C(=CC2=CC=CC=C12)* 0.000 description 1
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- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 1
- 229960003280 cupric chloride Drugs 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Natural products CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 1
- PEVJCYPAFCUXEZ-UHFFFAOYSA-J dicopper;phosphonato phosphate Chemical compound [Cu+2].[Cu+2].[O-]P([O-])(=O)OP([O-])([O-])=O PEVJCYPAFCUXEZ-UHFFFAOYSA-J 0.000 description 1
- XXJWXESWEXIICW-UHFFFAOYSA-N diethylene glycol monoethyl ether Chemical compound CCOCCOCCO XXJWXESWEXIICW-UHFFFAOYSA-N 0.000 description 1
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- 235000011180 diphosphates Nutrition 0.000 description 1
- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
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- 239000003205 fragrance Substances 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- XLYMOEINVGRTEX-UHFFFAOYSA-N fumaric acid monoethyl ester Natural products CCOC(=O)C=CC(O)=O XLYMOEINVGRTEX-UHFFFAOYSA-N 0.000 description 1
- NKHAVTQWNUWKEO-UHFFFAOYSA-N fumaric acid monomethyl ester Natural products COC(=O)C=CC(O)=O NKHAVTQWNUWKEO-UHFFFAOYSA-N 0.000 description 1
- 238000005227 gel permeation chromatography Methods 0.000 description 1
- 235000019382 gum benzoic Nutrition 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- XLSMFKSTNGKWQX-UHFFFAOYSA-N hydroxyacetone Chemical compound CC(=O)CO XLSMFKSTNGKWQX-UHFFFAOYSA-N 0.000 description 1
- 239000012216 imaging agent Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229940107698 malachite green Drugs 0.000 description 1
- FDZZZRQASAIRJF-UHFFFAOYSA-M malachite green Chemical compound [Cl-].C1=CC(N(C)C)=CC=C1C(C=1C=CC=CC=1)=C1C=CC(=[N+](C)C)C=C1 FDZZZRQASAIRJF-UHFFFAOYSA-M 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229940086559 methyl benzoin Drugs 0.000 description 1
- NKHAVTQWNUWKEO-IHWYPQMZSA-N methyl hydrogen fumarate Chemical compound COC(=O)\C=C/C(O)=O NKHAVTQWNUWKEO-IHWYPQMZSA-N 0.000 description 1
- WBYWAXJHAXSJNI-UHFFFAOYSA-N methyl p-hydroxycinnamate Natural products OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 125000002816 methylsulfanyl group Chemical group [H]C([H])([H])S[*] 0.000 description 1
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- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- OMNKZBIFPJNNIO-UHFFFAOYSA-N n-(2-methyl-4-oxopentan-2-yl)prop-2-enamide Chemical compound CC(=O)CC(C)(C)NC(=O)C=C OMNKZBIFPJNNIO-UHFFFAOYSA-N 0.000 description 1
- KERTUBUCQCSNJU-UHFFFAOYSA-L nickel(2+);disulfamate Chemical compound [Ni+2].NS([O-])(=O)=O.NS([O-])(=O)=O KERTUBUCQCSNJU-UHFFFAOYSA-L 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- MDYPDLBFDATSCF-UHFFFAOYSA-N nonyl prop-2-enoate Chemical compound CCCCCCCCCOC(=O)C=C MDYPDLBFDATSCF-UHFFFAOYSA-N 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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- 229910052700 potassium Inorganic materials 0.000 description 1
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- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 description 1
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- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
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- 229940048086 sodium pyrophosphate Drugs 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
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- 239000003381 stabilizer Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- RYCLIXPGLDDLTM-UHFFFAOYSA-J tetrapotassium;phosphonato phosphate Chemical compound [K+].[K+].[K+].[K+].[O-]P([O-])(=O)OP([O-])([O-])=O RYCLIXPGLDDLTM-UHFFFAOYSA-J 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
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- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical class C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 description 1
- LMYRWZFENFIFIT-UHFFFAOYSA-N toluene-4-sulfonamide Chemical compound CC1=CC=C(S(N)(=O)=O)C=C1 LMYRWZFENFIFIT-UHFFFAOYSA-N 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- 125000002948 undecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Materials For Photolithography (AREA)
- Polymerisation Methods In General (AREA)
- Graft Or Block Polymers (AREA)
- Manufacturing Of Printed Circuit Boards (AREA)
- Manufacturing Of Printed Wiring (AREA)
Description
【０００１】
【発明の属する技術分野】
本発明は、感光性樹脂組成物これを用いた感光性エレメント、レジストパターンの製造法及びプリント配線板の製造法に関する。
【０００２】
【従来の技術】
従来、プリント配線板の製造分野において、エッチング、めっき等に用いられるレジスト材料としては、感光性樹脂組成物及びそれに支持体と保護フィルムを用いて得られる感光性エレメントが広く用いられている。プリント配線板は、感光性エレメントを銅基板上にラミネートして、パターン露光した後、未露光部を現像液で除去し、エッチング又はめっき処理を施して、パターンを形成させた後硬化部分を基板上から剥離除去する方法によって製造されている。
【０００３】
この未露光部の除去を行う現像液としては、炭酸水素ナトリウム溶液等を使用するアルカリ現像型が主流になっており、現像液は、通常、ある程度感光性樹脂組成物層を溶解する能力があれば使用可能であり、現像時には現像液中に感光性樹脂組成物が溶解又は分散させられる。
【０００４】
近年のプリント配線板の高密度化に伴い、銅基板とパターン形成された感光性樹脂組成物層との接触面積が小さくなる為、現像、エッチング又はめっき処理工程で優れた接着力、耐薬品性、機械強度、はく離特性及び柔軟性等が要求されると共に高密着性、高解像度が要求される。
【０００５】
この種の特性を向上させるために、様々な種類のバインダーポリマー、光重合性化合物、光重合開始剤及び添加剤を用いるのであるが、中には現像液に溶解又は分散しにくいものもある。現像液に溶解又は分散しにくい化合物を含有する感光性樹脂組成物を、現像液に過剰に溶解又は分散させると油状物や粉末堆積物が発生し、プリント配線板製造時における不具合の原因になる。そこで現像液中に対する溶解又は分散性を向上させた感光性樹脂組成物の要求が高まっている。
【０００６】
【発明が解決しようとする課題】
請求項１記載の発明は、光感度、密着性、解像度、耐薬品性、機械強度、はく離特性、柔軟性及び、現像液に対する溶解又は分散性の優れる感光性樹脂組成物を提供するものであり、プリント配線の高密度化及び高解像化に有用である。
請求項２記載の発明は、請求項１記載の発明の効果を奏し、さらに現像液に対する溶解又は分散性の優れる感光性樹脂組成物を提供するものである。
請求項３記載の発明は、請求項１又は２記載の発明の効果に加えて、さらに光感度、解像度及び密着性が優れる感光性樹脂組成物を提供するものである。
請求項４、５、６又は７記載の発明は、光感度、密着性、解像度、耐薬品性、機械強度、はく離特性及び柔軟性が優れる感光性樹脂組成物積層体を提供するものである。
【０００７】
【課題を解決するための手段】
本発明は次のものに関する。
（１） （Ａ）バインダーポリマー、（Ｂ）分子内に少なくとも１つの重合可能なエチレン性不飽和結合を有する光重合性化合物及び（Ｃ）光重合開始剤を含有してなる感光性樹脂組成物において、前記（Ａ）成分の重合性単量体として、少なくとも（メタ）アクリル酸ブチルエステルを全共重合成分に対して０．１〜５０重量％含有し、前記（Ｃ）成分として、少なくとも１，７−ビス（９−アクリジニル）ヘプタンを含有してなる感光性樹脂組成物。
【０００９】
（２） （Ａ）成分の配合量が、（Ａ）成分及び（Ｂ）成分の総量を１００重量部として、４０〜８０重量部、（Ｂ）成分の配合量が、（Ａ）成分及び（Ｂ）成分の総量を１００重量部として２０〜６０重量部、（Ｃ）成分の配合量が、（Ａ）成分及び（Ｂ）成分の総量を１００重量部として０．０１〜６重量部含有してなる上記（１）記載の感光性樹脂組成物。
【００１０】
（３） 上記（１）又は（２）記載の感光性樹脂組成物の層を支持体上に塗布及び乾燥してなる感光性エレメント。
（４） 上記（１）又は（２）記載の感光性樹脂組成物の層を支持体上に塗布及び乾燥し、さらに支持体と反対側の感光性樹脂組成物の層に接するように保護フィルムを積層してなる感光性エレメント。
（５） 上記（３）又は（４）記載の感光性エレメントを、場合によって存在する保護フィルムを剥がしながら、回路形成用基板上に感光性樹脂組成物層が密着するようにして積層し、活性光線を画像状に照射し、露光部を光硬化させ、未露光部を現像により除去することを特徴とするレジストパターンの製造法。
（６） 上記（５）記載のレジストパターンの製造法により、レジストパターンの製造された回路形成用基板をエッチング又はめっきすることを特徴とするプリント配線板の製造法。
【００１１】
【発明の実施の形態】
以下、本発明について詳細に説明する。なお、本発明における（メタ）アクリル酸とはアクリル酸及びそれに対応するメタクリル酸を意味し、（メタ）アクリレートとはアクリレート及びそれに対応するメタクリレートを意味し、（メタ）アクリロイル基とはアクリロイル基及びそれに対応するメタクリロイル基を意味する。
【００１２】
本発明の感光性樹脂組成物は、（Ａ）バインダーポリマー、（Ｂ）分子内に少なくとも１つの重合可能なエチレン性不飽和結合を有する光重合性化合物、（Ｃ）光重合開始剤及び（Ｄ）添加剤を含有してなる感光性樹脂組成物において、前記（Ａ）成分の重合性単量体として、少なくとも（メタ）アクリル酸ブチルエステルを全共重合成分に対して０．１〜５０重量％含有してなる。
上記（Ａ）バインダーポリマーは、例えば、重合性単量体をラジカル重合させることにより製造することができる。
上記（Ａ）バインダーポリマーの重合性単量体としては、（メタ）アクリル酸ブチルエステルの他、一般式（Ｉ）
【００１４】
【化１】
で表される化合物、これらの化合物のアルキル基に水酸基、エポキシ基、ハロゲン基等が置換した化合物などが挙げられる。
【００１５】
上記一般式（Ｉ）中のＲ ２ で示される炭素数５〜３６のアルキル基としては、ペンチル基、ヘキシル基、ヘプチル基、オクチル基、ノニル基、デシル基、ウンデシル基、ドデシル基、トリデシル基、ステアリル基及びこれらの構造異性体が挙げられる。上記一般式（Ｉ）で表される単量体としては、例えば、（メタ）アクリル酸ペンチルエステル、（メタ）アクリル酸ヘキシルエステル、（メタ）アクリル酸ヘプチルエステル、（メタ）アクリル酸オクチルエステル、（メタ）アクリル酸２−エチルヘキシルエステル、（メタ）アクリル酸ノニルエステル、（メタ）アクリル酸デシルエステル、（メタ）アクリル酸ウンデシルエステル、（メタ）アクリル酸ドデシルエステル、（メタ）アクリル酸トリデシルエステル、（メタ）アクリル酸ステアリルエステル、等が挙げられる。これらは単独で又は２種以上を組み合わせて用いることができる。
【００１６】
上記一般式（Ｉ）中のＲ ２ で示される炭素数５〜３６を有する長鎖置換基としては、２−（２−エトキシエトキシ）エチル基、２−フェノキシエチル基、カプロラクトニル基、ポリエトキシ化ノニルフェニル基、ポリプロポキシ化ノニルフェニル基、及びこれらの構造異性体が挙げられる。上記一般式（Ｉ）で表される単量体としては、例えば、（メタ）アクリル酸２−（２−エトキシエトキシ）エチルエステル、（メタ）アクリル酸２−フェノキシエチルエステル、（メタ）アクリル酸カプロラクトニルエステル、（メタ）アクリル酸ポリエトキシ化ノニルフェニルエステル、（メタ）アクリル酸ポリプロポキシ化ノニルフェニルエステル、等が挙げられる。これらは単独で又は２種以上を組み合わせて用いることができる。
【００１７】
（メタ）アクリル酸ブチルエステルを共重合成分として、現像液に対する溶解又は分散性を良好にするには、０．１〜５０重量％含み、１〜３０重量％含むことが好ましく、１．５〜２７重量％含むことがより好ましい。
【００１８】
上記（Ａ）バインダーポリマーの重合性単量体としては、例えば、スチレン、ビニルトルエン、α−メチルスチレン等のα−位若しくは芳香族環において置換されている重合可能なスチレン誘導体、ジアセトンアクリルアミド等のアクリルアミド、アクリロニトリル、ビニル−ｎ−ブチルエーテル等のビニルアルコールのエステル類、（メタ）アクリル酸アルキルエステル、（メタ）アクリル酸テトラヒドロフルフリルエステル、（メタ）アクリル酸ジメチルアミノエチルエステル、（メタ）アクリル酸ジエチルアミノエチルエステル、（メタ）アクリル酸グリシジルエステル、２，２，２−トリフルオロエチル（メタ）アクリレート、２，２，３，３−テトラフルオロプロピル（メタ）アクリレート、（メタ）アクリル酸、α−ブロモ（メタ）アクリル酸、α−クロル（メタ）アクリル酸、β−フリル（メタ）アクリル酸、β−スチリル（メタ）アクリル酸、マレイン酸、マレイン酸無水物、マレイン酸モノメチル、マレイン酸モノエチル、マレイン酸モノイソプロピル等のマレイン酸モノエステル、フマール酸、ケイ皮酸、α−シアノケイ皮酸、イタコン酸、クロトン酸、プロピオール酸などが挙げられる。
【００１９】
上記（メタ）アクリル酸アルキルエステルとしては、例えば、一般式（ＩＩ）
【化２】
で表される化合物、これらの化合物のアルキル基に水酸基、エポキシ基、ハロゲン基等が置換した化合物などが挙げられる。
【００２０】
上記一般式（ＩＩ）中のＲ４で示される炭素数１〜３のアルキル基としては、例えば、メチル基、エチル基、プロピル基が挙げられる。上記一般式（ＩＩ）で表される単量体としては、例えば、（メタ）アクリル酸メチルエステル、（メタ）アクリル酸エチルエステル、（メタ）アクリル酸プロピルエステル、等が挙げられる。これらは単独で又は２種以上を組み合わせて用いることができる。
【００２１】
また、本発明における（Ａ）成分であるバインダーポリマーは、アルカリ現像性の見地から、カルボキシル基を含有させることが好ましく、例えば、カルボキシル基を有する重合性単量体とその他の重合性単量体をラジカル重合させることにより製造することができる。また、本発明における（Ａ）成分であるバインダーポリマーは、可とう性の見地からスチレン又はスチレン誘導体を重合性単量体として含有させることが好ましい。
【００２２】
これらのバインダーポリマーは、単独で又は２種類以上を組み合わせて使用される。ここで、２種類以上のバインダポリマーを組み合わせた場合の分散度は、（Ａ）成分全体（ポリマ混合物）の分散度とする。２種類以上を組み合わせて使用する場合のバインダーポリマーとしては、例えば、異なる共重合成分からなる２種類以上のバインダーポリマー、異なる重量平均分子量の２種類以上のバインダーポリマー、異なる分散度の２種類以上のバインダーポリマーなどが挙げられる。この場合の分散度は２．０〜３．０が好ましい。
【００２３】
上記（Ａ）バインダーポリマーは、分散度（重量平均分子量／数平均分子量）が１．０〜３．０でありことが好ましく、１．５〜２．５であることがより好ましい。分散度が３．０を超えると接着性及び解像度が低下する傾向がある。但し、本発明における重量平均分子量及び数平均分子量はゲルパーミエーションクロマトグラフィーにより測定し、標準ポリスチレン換算した値を使用したものである。
【００２４】
上記（Ａ）バインダーポリマーの重量平均分子量は、２０，０００〜３００，０００であることが好ましく、４０，０００〜１５０，０００であることがより好ましい。重量平均分子量が、２０，０００未満では耐現像液性が低下する傾向があり、３００，０００を超えると現像時間が長くなる傾向がある。
【００２５】
上記（Ａ）バインダーポリマーとしては、分散度が１．０〜３．０であれば特に制限はなく、例えば、アクリル系樹脂、スチレン系樹脂、エポキシ系樹脂、アミド系樹脂、アミドエポキシ系樹脂、アルキド系樹脂、フェノール系樹脂等が挙げられる。アルカリ現像性の見地からは、アクリル系樹脂が好ましい。これらは単独で又は２種以上を組み合わせて用いることができる。
【００２６】
前記（Ａ）バインダーポリマーの酸価は、１００〜５００ｍｇＫＯＨ／ｇであることが好ましく、１００〜３００ｍｇＫＯＨ／ｇであることがより好ましい。この酸価が１００ｍｇＫＯＨ／ｇ未満では現像時間が遅くなる傾向があり、５００ｍｇＫＯＨ／ｇを超えると光硬化したレジストの耐現像液性が低下する傾向がある。
【００２７】
前記（Ｂ）分子内に少なくとも１つの重合可能なエチレン性不飽和結合を有する光重合性化合物としては、ビスフェノールＡ系（メタ）アクリレート化合物、多価アルコールにα，β−不飽和カルボン酸を反応させて得られる化合物、グリシジル基含有化合物にα、β−不飽和カルボン酸を反応させで得られる化合物、ウレタン結合を有する（メタ）アクリレート化合物等のウレタンモノマー、ノニルフェニルジオキシレン（メタ）アクリレート、γ−クロロ−β−ヒドロキシプロピル−β′−（メタ）アクリロイルオキシエチル−ｏ−フタレート、β−ヒドロキシエチル−β′−（メタ）アクリロイルオキシエチル−ｏ−フタレート、β−ヒドロキシプロピル−β′−（メタ）アクリロイルオキシエチル−ｏ−フタレート、（メタ）アクリル酸アルキルエステル、ＥＯ変性ノニルフェニル（メタ）アクリレート等が挙げられるが、分子内に１つの重合可能なエチレン性不飽和結合を有する光重合性化合物を併用することが好ましい。これらは単独で又は２種類以上を組み合わせて使用される。
【００２８】
上記ビスフェノールＡ系（メタ）アクリレート化合物としては、例えば、２，２−ビス（４−（（メタ）アクリロキシポリエトキシ）フェニル）プロパン、２，２−ビス（４−（（メタ）アクリロキシポリプロポキシ）フェニル）プロパン、２，２−ビス（４−（（メタ）アクリロキシポリブトキシ）フェニル）プロパン、２，２−ビス（４−（（メタ）アクリロキシポリエトキシポリプロポキシ）フェニル）プロパン等のビスフェノールＡ系（メタ）アクリレート化合物等が挙げられる。
【００２９】
上記２，２−ビス（４−（（メタ）アクリロキシポリエトキシ）フェニル）プロパンとしては、例えば、２，２−ビス（４−（（メタ）アクリロキシジエトキシ）フェニル）プロパン、２，２−ビス（４−（（メタ）アクリロキシトリエトキシ）フェニル）プロパン、２，２−ビス（４−（（メタ）アクリロキシテトラエトキシ）フェニル）プロパン、２，２−ビス（４−（（メタ）アクリロキシペンタエトキシ）フェニル）プロパン、２，２−ビス（４−（（メタ）アクリロキシヘキサエトキシ）フェニル）プロパン、２，２−ビス（４−（（メタ）アクリロキシヘプタエトキシ）フェニル）プロパン、２，２−ビス（４−（（メタ）アクリロキシオクタエトキシ）フェニル）プロパン、２，２−ビス（４−（（メタ）アクリロキシノナエトキシ）フェニル）プロパン、２，２−ビス（４−（（メタ）アクリロキシデカエトキシ）フェニル）、２，２−ビス（４−（（メタ）アクリロキシウンデカエトキシ）フェニル）、２，２−ビス（４−（（メタ）アクリロキシドデカエトキシ）フェニル）、２，２−ビス（４−（（メタ）アクリロキシトリデカエトキシ）フェニル）、２，２−ビス（４−（（メタ）アクリロキシテトラデカエトキシ）フェニル）、２，２−ビス（４−（（メタ）アクリロキシペンタデカエトキシ）フェニル）、２，２−ビス（４−（（メタ）アクリロキシヘキサデカエトキシ）フェニル）等が挙げられ、２，２−ビス（４−（メタクリロキシペンタエトキシ）フェニル）プロパンは、ＢＰＥ−５００（新中村化学工業（株）製、製品名）として商業的に入手可能であり、２，２−ビス（４−（メタクリロキシペンタデカエトキシ）フェニル）は、ＢＰＥ−１３００（新中村化学工業（株）製、製品名）として商業的に入手可能である。これらは単独で又は２種類以上を組み合わせて使用される。
【００３０】
上記２，２−ビス（４−（（メタ）アクリロキシポリプロポキシ）フェニル）プロパンとしては、例えば、２，２−ビス（４−（（メタ）アクリロキシジプロポキシ）フェニル）プロパン、２，２−ビス（４−（（メタ）アクリロキシトリプロポキシ）フェニル）プロパン、２，２−ビス（４−（（メタ）アクリロキシテトラプロポキシ）フェニル）プロパン、２，２−ビス（４−（（メタ）アクリロキシペンタプロポキシ）フェニル）プロパン、２，２−ビス（４−（（メタ）アクリロキシヘキサプロポキシ）フェニル）プロパン、２，２−ビス（４−（（メタ）アクリロキシヘプタプロポキシ）フェニル）プロパン、２，２−ビス（４−（（メタ）アクリロキシオクタプロポキシ）フェニル）プロパン、２，２−ビス（４−（（メタ）アクリロキシノナプロポキシ）フェニル）プロパン、２，２−ビス（４−（（メタ）アクリロキシデカプロポキシ）フェニル）、２，２−ビス（４−（（メタ）アクリロキシウンデカプロポキシ）フェニル）、２，２−ビス（４−（（メタ）アクリロキシドデカプロポキシ）フェニル）、２，２−ビス（４−（（メタ）アクリロキシトリデカプロポキシ）フェニル）、２，２−ビス（４−（（メタ）アクリロキシテトラデカプロポキシ）フェニル）、２，２−ビス（４−（（メタ）アクリロキシペンタデカプロポキシ）フェニル）、２，２−ビス（４−（（メタ）アクリロキシヘキサデカプロポキシ）フェニル）等が挙げられる。これらは単独で又は２種類以上を組み合わせて使用される。
【００３１】
上記２，２−ビス（４−（（メタ）アクリロキシポリエトキシポリプロポキシ）フェニル）プロパンとしては、例えば、２，２−ビス（４−（（メタ）アクリロキシジエトキシオクタプロポキシ）フェニル）プロパン、２，２−ビス（４−（（メタ）アクリロキシテトラエトキシテトラプロポキシ）フェニル）プロパン、２，２−ビス（４−（（メタ）アクリロキシヘキサエトキシヘキサプロポキシ）フェニル）プロパン等が挙げられる。これらは単独で又は２種類以上を組み合わせて使用される。
【００３２】
上記多価アルコールにα，β−不飽和カルボン酸を反応させて得られる化合物としては、例えば、エチレン基の数が２〜１４であるポリエチレングリコールジ（メタ）アクリレート、プロピレン基の数が２〜１４であるポリプロピレングリコールジ（メタ）アクリレート、エチレン基の数が２〜１４であり、プロピレン基の数が２〜１４であるポリエチレンポリプロピレングリコールジ（メタ）アクリレート、トリメチロールプロパンジ（メタ）アクリレート、トリメチロールプロパントリ（メタ）アクリレート、トリメチロールプロパンエトキシトリ（メタ）アクリレート、トリメチロールプロパンジエトキシトリ（メタ）アクリレート、トリメチロールプロパントリエトキシトリ（メタ）アクリレート、トリメチロールプロパンテトラエトキシトリ（メタ）アクリレート、トリメチロールプロパンペンタエトキシトリ（メタ）アクリレート、テトラメチロールメタントリ（メタ）アクリレート、テトラメチロールメタンテトラ（メタ）アクリレート、プロピレン基の数が２〜１４であるポリプロピレングリコールジ（メタ）アクリレート、ジペンタエリスリトールペンタ（メタ）アクリレート、ジペンタエリスリトールヘキサ（メタ）アクリレート等が挙げられる。
上記α，β−不飽和カルボン酸としては、例えば、（メタ）アクリル酸等が挙げられる。
【００３３】
上記グリシジル基含有化合物としては、例えば、トリメチロールプロパントリグリシジルエーテルトリ（メタ）アクリレート、２，２−ビス（４−（メタ）アクリロキシ−２−ヒドロキシ−プロピルオキシ）フェニル等が拳げられる。
【００３４】
上記ウレタンモノマーとしては、例えば、β位にＯＨ基を有する（メタ）アクリルモノマーとイソホロンジイソシアネート、２，６−トルエンジイソシアネート、２，４−トルエンジイソシアネート、１，６−ヘキサメチレンジイソシアネート等のジイソシアネート化合物との付加反応物、トリス（（メタ）アクリロキシテトラエチレングリコールイソシアネート）ヘキサメチレンイソシアヌレート、ＥＯ変性ウレタンジ（メタ）アクリレート、ＥＯ，ＰＯ変性ウレタンジ（メタ）アクリレート等が挙げられる。なお、ＥＯはエチレンオキサイドを示し、ＥＯ変性された化合物はエチレンオキサイド基のブロック構造を有する。また、ＰＯはプロピレンオキサイドを示し、ＰＯ変性された化合物はプロピレンオキサイド基のブロック構造を有する。ＥＯ変性ウレタンジ（メタ）アクリレートとしては、例えば、新中村化学工業（株）製、製品名ＵＡ−１１等が挙げられる。また、ＥＯ，ＰＯ変性ウレタンジ（メタ）アクリレートとしては、例えば、新中村化学工業（株）製、製品名ＵＡ−１３等が挙げられる。
【００３５】
上記（メタ）アクリル酸アルキルエステルとしては、例えば、（メタ）アクリル酸メチルエステル、（メタ）アクリル酸エチルエステル、（メタ）アクリル酸ブチルエステル、（メタ）アクリル酸２−エチルヘキシルエステル等が挙げられる。
【００３６】
本発明における（Ｃ）成分の光重合開始剤としては、下記の光重合開始剤が挙げられるが、本発明では、（Ｃ）成分として、少なくとも１，７−ビス（９−アクリジニル）ヘプタンを用いる。光重合開始剤としては、例えば、ベンゾフェノン、Ｎ，Ｎ'−テトラメチル−４，４'−ジアミノベンゾフェノン（ミヒラーケトン）、Ｎ，Ｎ'−テトラエチル−４，４'−ジアミノベンゾフェノン、４−メトキシ−４'−ジメチルアミノベンゾフェノン、２−ベンジル−２−ジメチルアミノ−１−（４−モルホリノフェニル）−ブタノン−１、２−メチル−１−［４−（メチルチオ）フェニル］−２−モルフォリノ−プロパノン−１等の芳香族ケトン、２−エチルアントラキノン、フェナントレンキノン、２ーｔｅｒｔーブチルアントラキノン、オクタメチルアントラキノン、１，２ーベンズアントラキノン、２，３ーベンズアントラキノン、２ーフェニルアントラキノン、２，３ージフェニルアントラキノン、１ークロロアントラキノン、２ーメチルアントラキノン、１，４−ナフトキノン、９，１０−フェナンタラキノン、２−メチル１，４−ナフトキノン、２，３−ジメチルアントラキノン等のキノン類、ベンゾインメチルエーテル、ベンゾインエチルエーテル、ベンゾインフェニルエーテル等のベンゾインエーテル化合物、ベンゾイン、メチルベンゾイン、エチルベンゾイン等のベンゾイン化合物、ベンジルジメチルケタール等のベンジル誘導体、２−（ｏ−クロロフェニル）−４，５−ジフェニルイミダゾール二量体、２−（ｏ−クロロフェニル）−４，５−ジ（メトキシフェニル）イミダゾール二量体、２−（ｏ−フルオロフェニル）−４，５−ジフェニルイミダゾール二量体、２−（ｏ−メトキシフェニル）−４，５−ジフェニルイミダゾール二量体、２−（ｐ−メトキシフェニル）−４，５−ジフェニルイミダゾール二量体等の２，４，５−トリアリールイミダゾール二量体、９−フェニルアクリジン、１，７−ビス（９−アクリジニル）ヘプタン等のアクリジン誘導体、Ｎ−フェニルグリシン、Ｎ−フェニルグリシン誘導体、クマリン系化合物などが挙げられる。また、２つの２，４，５−トリアリールイミダゾールのアリール基の置換基は同一で対象な化合物を与えてもよいし、相違して非対称な化合物を与えてもよい。また、ジエチルチオキサントンとジメチルアミノ安息香酸の組み合わせのように、チオキサントン系化合物と３級アミン化合物とを組み合わせてもよい。また、密着性及び感度の見地からは、２，４，５−トリアリールイミダゾール二量体がより好ましい。これらは、単独で又は２種類以上を組み合わせて使用される。
【００３７】
前記（Ａ）バインダーポリマーの配合量は、（Ａ）成分及び（Ｂ）成分の総量１００重量部に対して、４０〜８０重量部とすることが好ましく、４５〜７０重量部とすることがより好ましい。この配合量が４０重量部未満では光硬化物が脆くなり易く、感光性エレメントとして用いた場合に、塗膜性が劣る傾向があり、８０重量部を超えると光感度が不充分となる傾向がある。
【００３８】
前記（Ｂ）光重合性化合物の配合量は、（Ａ）成分及び（Ｂ）成分の総量１００重量部に対して、２０〜６０重量部とすることが好ましく、３０〜５５重量部とすることがより好ましい。この配合量が２０重量部未満では光感度が不充分となる傾向があり、６０重量部を超えると光硬化物が脆くなる傾向がある。
【００３９】
前記（Ｃ）光重合開始剤の配合量は、（Ａ）成分及び（Ｂ）成分の総量１００重量部に対して、０．０１〜１０重量部であることが好ましく、０．２〜５重量部であることがより好ましい。この配合量が０．０１重量部未満では光感度が不充分となる傾向があり、１０重量部を超えると露光の際に組成物の表面での吸収が増大して内部の光硬化が不充分となる傾向がある。
【００４０】
また、本発明の感光性樹脂組成物には、必要に応じて、マラカイトグリーン等の染料、トリブロモフェニルスルホン、ロイコクリスタルバイオレット等の光発色剤、熱発色防止剤、ｐ−トルエンスルホンアミド等の可塑剤、顔料、充填剤、消泡剤、難燃剤、安定剤、密着性付与剤、レベリング剤、剥離促進剤、酸化防止剤、香料、イメージング剤、熱架橋剤などを（Ａ）成分及び（Ｂ）成分の総量１００重量部に対して各々０．００５〜２０重量部程度含有することができる。これらは、単独で又は２種類以上を組み合わせて使用される。
【００４１】
本発明の感光性樹脂組成物は、必要に応じて、メタノール、エタノール、アセトン、メチルエチルケトン、メチルセロソルブ、エチルセロソルブ、トルエン、Ｎ，Ｎ−ジメチルホルムアミド、プロピレングリコールモノメチルエーテル等の溶剤又はこれらの混合溶剤に溶解して固形分３０〜６０重量％程度の溶液として塗布することができる。
【００４２】
本発明の感光性樹脂組成物は、特に制限はないが、金属面、例えば、銅、銅系合金、ニッケル、クロム、鉄、ステンレス等の鉄系合金、好ましくは銅、銅系合金、鉄系合金の表面上に、液状レジストとして塗布して乾燥後、必要に応じて保護フィルムを被覆して用いるか、感光性エレメントの形態で用いられることが好ましい。
【００４３】
また、感光性樹脂組成物層の厚みは、用途により異なるが、乾燥後の厚みで１〜１００μｍであることが好ましく、１〜５０μｍであることがより好ましい。この厚みが１μｍ未満では工業的に塗工困難な傾向がある。
【００４４】
前記感光性樹脂組成物層の波長３６５ｎｍの紫外線に対する透過率が５〜７５％であることが好ましく、７〜６０％であることがより好ましく、１０〜４０％であることが特に好ましい。この透過率が５％未満では密着性が劣る傾向があり、７５％を超えると解像度が劣る傾向がある。上記透過率は、ＵＶ分光計により測定することができ、上記ＵＶ分光計としては、（株）日立製作所製２２８Ａ型Ｗビーム分光光度計等が挙げられる。
【００４５】
上記感光エレメントとして使用する場合の支持体は、厚みが５〜２５μｍであることが好ましく、８〜２０μｍであることがより好ましく、１０〜１６μｍであることが特に好ましい。この厚みが５μｍ未満では現像前の支持体はく離の際に破ける傾向があり、２５μｍを超えると解像度が低下する傾向がある。
【００４６】
上記支持体としては、例えば、ポリエチレンテレフタレート、ポリプロピレン、ポリエチレン、ポリエステル等の耐熱性及び耐溶剤性を有する重合体フィルムなどが挙げられる。
【００４７】
前記感光エレメントとして使用する場合の保護フィルムは、厚みが５〜３０μｍであることが好ましく、１０〜２８μｍであることがより好ましく、１５〜２５μｍであることが特に好ましい。この厚みが５μｍ未満ではラミネートの際、保護フィルムが破れる傾向があり、３０μｍを超えると廉価性に劣る傾向がある。
【００４８】
また、これら支持体及び保護フィルムは、後に感光性樹脂組成物層から除去可能でなくてはならないため、除去が不可能となるような表面処理が施されたものであってはならないが、特に制限はなく必要に応じて処理を行ってもよい。更にこれらの支持体、保護フィルムは必要に応じて帯電防止処理が施されていてもよい。
【００４９】
このようにして得られる支持体と感光性樹脂組成物層との２層からなる感光性エレメント及び支持体と感光性樹脂組成物層と保護フィルムとの３層からなる感光性エレメントは、例えば、そのまま又は感光性樹脂組成物層の他の面に保護フィルムをさらに積層してロール状に巻きとって貯蔵される。
【００５０】
上記感光性エレメントを用いてレジストパターンを製造するに際しては、前記の保護フィルムが存在している場合には、保護フィルムを除去後、感光性樹脂組成物層を加熱しながら回路形成用基板に圧着することにより積層する方法などが挙げられ、密着性及び追従性の見地から減圧下で積層することが好ましい。積層される表面は、通常金属面であるが、特に制限はない。感光性樹脂組成物層の加熱温度は７０〜１３０℃とすることが好ましく、圧着圧力は、０．１〜１．０ＭＰａ程度（１〜１０ｋｇｆ／ｃｍ２程度）とすることが好ましいが、これらの条件には特に制限はない。また、感光性樹脂組成物層を前記のように７０〜１３０℃に加熱すれば、予め回路形成用基板を予熱処理することは必要ではないが、積層性をさらに向上させるために、回路形成用基板の予熱処理を行うこともできる。
【００５１】
このようにして積層が完了した感光性樹脂組成物層は、アートワークと呼ばれるネガ又はポジマスクパターンを通して活性光線が画像状に照射される。この際、感光性樹脂組成物層上に存在する重合体フィルムが透明の場合には、そのまま、活性光線を照射してもよく、また、不透明の場合には、当然除去する必要がある。活性光線の光源としては、公知の光源、例えば、カーボンアーク灯、水銀蒸気アーク灯、超高圧水銀灯、高圧水銀灯、キセノンランプ等の紫外線を有効に放射するものが用いられる。また、写真用フラッド電球、太陽ランプ等の可視光を有効に放射するものも用いられる。
【００５２】
次いで、露光後、感光性樹脂組成物層上に支持体が存在している場合には、支持体を除去した後、ウエット現像、ドライ現像等で未露光部を除去して現像し、レジストパターンを製造する。ウエット現像の場合は、アルカリ性水溶液、水系現像液、有機溶剤等の感光性樹脂組成物に対応した現像液を用いて、例えば、スプレー、揺動浸漬、ブラッシング、スクラッピング等の公知の方法により現像する。現像液としては、アルカリ性水溶液等の安全かつ安定であり、操作性が良好なものが用いられる。上記アルカリ性水溶液の塩基としては、例えば、リチウム、ナトリウム又はカリウムの水酸化物等の水酸化アルカリ、リチウム、ナトリウム、カリウム若しくはアンモニウムの炭酸塩又は重炭酸塩等の炭酸アルカリ、リン酸カリウム、リン酸ナトリウム等のアルカリ金属リン酸塩、ピロリン酸ナトリウム、ピロリン酸カリウム等のアルカリ金属ピロリン酸塩などが用いられる。また、現像に用いるアルカリ性水溶液としては、０．１〜５重量％炭酸ナトリウムの希薄溶液、０．１〜５重量％炭酸カリウムの希薄溶液、０．１〜５重量％水酸化ナトリウムの希薄溶液、０．１〜５重量％四ホウ酸ナトリウムの希薄溶液等が好ましい。また、現像に用いるアルカリ性水溶液のｐＨは９〜１１の範囲とすることが好ましく、その温度は、感光性樹脂組成物層の現像性に合わせて調節される。また、アルカリ性水溶液中には、表面活性剤、消泡剤、現像を促進させるための少量の有機溶剤等を混入させてもよい。上記水系現像液としては、水又はアルカリ水溶液と一種以上の有機溶剤とからなる。ここでアルカリ物質としては、前記物質以外に、例えば、ホウ砂やメタケイ酸ナトリウム、水酸化テトラメチルアンモニウム、エタノールアミン、エチレンジアミン、ジエチレントリアミン、２ーアミノ−２−ヒドロキシメチル−１、３−プロパンジオール、１、３−ジアミノプロパノール−２、モルホリン等が挙げられる。現像液のｐＨは、レジストの現像が充分にできる範囲でできるだけ小さくすることが好ましく、ｐＨ８〜１２とすることが好ましく、ｐＨ９〜１０とすることがより好ましい。上記有機溶剤としては、例えば、３アセトンアルコール、アセトン、酢酸エチル、炭素数１〜４のアルコキシ基をもつアルコキシエタノール、エチルアルコール、イソプロピルアルコール、ブチルアルコール、ジエチレングリコールモノメチルエーテル、ジエチレングリコールモノエチルエーテル、ジエチレングリコールモノブチルエーテル等が挙げられる。これらは、単独で又は２種類以上を組み合わせて使用される。有機溶剤の濃度は、通常、２〜９０重量％とすることが好ましく、その温度は、現像性にあわせて調整することができる。また、水系現像液中には、界面活性剤、消泡剤等を少量混入することもできる。単独で用いる有機溶剤系現像液としては、例えば、１，１，１−トリクロロエタン、Ｎ−メチルピロリドン、Ｎ，Ｎ−ジメチルホルムアミド、シクロヘキサノン、メチルイソブチルケトン、γ−ブチロラクトン等が挙げられる。これらの有機溶剤は、引火防止のため、１〜２０重量％の範囲で水を添加することが好ましい。また、必要に応じて２種以上の現像方法を併用してもよい。現像の方式には、ディップ方式、バトル方式、スプレー方式、ブラッシング、スラッピング等があり、高圧スプレー方式が解像度向上のためには最も適している。
【００５３】
現像後の処理として、必要に応じて６０〜２５０℃程度の加熱又は０．２〜１０ｍＪ／ｃｍ２程度の露光を行うことによりレジストパターンをさらに硬化して用いてもよい。
【００５４】
現像後に行われる金属面のエッチングには塩化第二銅溶液、塩化第二鉄溶液、アルカリエッチング溶液、過酸化水素系エッチング液を用いることができるが、エッチファクターが良好な点から塩化第二鉄溶液を用いることが望ましい。
【００５５】
本発明の感光性エレメントを用いてプリント配線板を製造する場合、現像されたレジストパターンをマスクとして、回路形成用基板の表面を、エッチング、めっき等の公知方法で処理する。上記めっき法としては、例えば、硫酸銅めっき、ピロリン酸銅めっき等の銅めっき、ハイスローはんだめっき等のはんだめっき、ワット浴（硫酸ニッケル−塩化ニッケル）めっき、スルファミン酸ニッケルめっき等のニッケルめっき、ハード金めっき、ソフト金めっき等の金めっきなどがある。次いで、レジストパターンは、例えば、現像に用いたアルカリ性水溶液よりさらに強アルカリ性の水溶液ではく離することができる。この強アルカリ性の水溶液としては、例えば、１〜１０重量％水酸化ナトリウム水溶液、１〜１０重量％水酸化カリウム水溶液等が用いられる。はく離方式としては、例えば、浸漬方式、スプレイ方式等が挙げられ、浸漬方式及びスプレイ方式を単独で使用してもよいし、併用してもよい。また、レジストパターンが形成されたプリント配線板は、多層プリント配線板でもよい。
【００５６】
【実施例】
以下、本発明を実施例により説明する。
実施例１及び比較例１〜７
表１に示す材料を配合し、感光性樹脂組成物の溶液を得た。
【００５７】
【表１】
【表２】
次いで、得られた感光性樹脂組成物の溶液を、１６μｍ厚のポリエチレンテレフタレートフィルム（商品名Ｇ２−１６，帝人（株）製）上に均一に塗布し、１００℃の熱風対流式乾燥機で１０分間乾燥した後、ポリエチレン製保護フィルム（商品名：ＮＦ−１３，タマポリ（株）製）で保護し感光性樹脂組成物積層体を得た。感光性樹脂組成物層の乾燥後の膜厚は、４０μｍであった。
【００６０】
次に、１重量％炭酸ナトリウム水溶液を用いてフィルム溶解量０．６ｍ２／Ｌの現像液を調整し、小型現像機（０．０８ＭＰａ、３０℃）で９０分間循環した時の現像液発泡性、油状物発生性を観察した。ここで、現像液に対し溶解又は分散性が高いほど油状物の発生は抑えられる。
【００６１】
次いで、観察後の現像液をポリ瓶に移し７日間静置した後、ポリ瓶を１０回振とうした後、現像液を抜いてポリ瓶底部に沈殿していた堆積物の除去性を観察した。ここで、現像液に対し溶解又は分散性が高いほど堆積物の量が少なくなり、除去性が良好となる。
以上の結果をまとめて表３に示した。
【００６２】
【表３】
【００６３】
【発明の効果】
請求項１記載の発明は、光感度、密着性、解像度、耐薬品性、機械強度、はく離特性、柔軟性及び現像液に対する溶解又は分散性が優れる感光性樹脂組成物を提供するものであり、プリント配線の高密度化及び高解像化に有用である。
請求項２記載の発明は、請求項１記載の発明の効果を奏し、さらに現像液に対する溶解又は分散性が向上し、現像液特性が優れる感光性樹脂組成物を提供するものである。
請求項３記載の発明は、請求項１又は２記載の発明の効果に加えて、さらに光感度、解像度及び密着性が優れる感光性樹脂組成物を提供するものである。
請求項４、５、６又は７記載の発明は、光感度、密着性、解像度、耐薬品性、機械強度、はく離特性及び柔軟性が優れる感光性樹脂組成物積層体を提供するものである。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a photosensitive resin composition, a photosensitive element using the same, a method for producing a resist pattern, and a method for producing a printed wiring board.
[0002]
[Prior art]
Conventionally, in the field of printed wiring board production, as a resist material used for etching, plating and the like, a photosensitive resin composition and a photosensitive element obtained by using a support and a protective film are widely used. The printed wiring board is formed by laminating a photosensitive element on a copper substrate, exposing the pattern, removing the unexposed portion with a developer, performing etching or plating, and forming a pattern. It is manufactured by a method of peeling off from above.
[0003]
As a developer for removing the unexposed portion, an alkali developing type using a sodium hydrogen carbonate solution or the like has become the mainstream, and the developer usually has an ability to dissolve the photosensitive resin composition layer to some extent. The photosensitive resin composition is dissolved or dispersed in the developer during development.
[0004]
With the recent increase in the density of printed wiring boards, the contact area between the copper substrate and the patterned photosensitive resin composition layer becomes smaller, so it has excellent adhesion and chemical resistance in the development, etching or plating process. In addition, mechanical strength, peeling characteristics and flexibility are required, and high adhesion and high resolution are required.
[0005]
In order to improve this kind of properties, various types of binder polymers, photopolymerizationsexA compound, a photopolymerization initiator and an additive are used, but some of them are difficult to dissolve or disperse in a developer. When a photosensitive resin composition containing a compound that is difficult to dissolve or disperse in the developer is excessively dissolved or dispersed in the developer, an oily substance or a powder deposit is generated, which may cause problems in manufacturing a printed wiring board. . Then, the request | requirement of the photosensitive resin composition which improved the melt | dissolution or dispersibility with respect to a developing solution is increasing.
[0006]
[Problems to be solved by the invention]
The invention described in claim 1 provides a photosensitive resin composition excellent in photosensitivity, adhesion, resolution, chemical resistance, mechanical strength, peeling properties, flexibility, and solubility or dispersibility in a developer. It is useful for increasing the density and resolution of printed wiring.
The invention according to claim 2 provides the photosensitive resin composition having the effects of the invention according to claim 1 and further excellent in solubility or dispersibility in a developer.
The invention described in claim 3 provides a photosensitive resin composition having excellent photosensitivity, resolution and adhesion in addition to the effects of the invention described in claim 1 or 2.
Invention of Claim 4, 5, 6 or 7 provides the photosensitive resin composition laminated body which is excellent in photosensitivity, adhesiveness, resolution, chemical resistance, mechanical strength, peeling characteristics, and a softness | flexibility.
[0007]
[Means for Solving the Problems]
The present invention relates to the following.
(1) A photosensitive resin composition comprising (A) a binder polymer, (B) a photopolymerizable compound having at least one polymerizable ethylenically unsaturated bond in the molecule, and (C) a photopolymerization initiator. In (4), as the polymerizable monomer of the component (A), at least (meth) acrylic acid butyl ester0.1 to 50% by weight based on all copolymer componentsAnd the component (C) is at least 1,7-bis (9-A photosensitive resin composition comprising (acridinyl) heptane.
[0009]
(2) The blending amount of component (A) is 40 to 80 parts by weight, with the total amount of component (A) and component (B) being 100 parts by weight, and the blending amount of component (B) is (A) and (B) The total amount of the components is 20 to 60 parts by weight with 100 parts by weight, and the amount of the component (C) is 0.01 to 6 parts by weight with the total amount of the components (A) and (B) as 100 parts by weight. Above (1)RecordThe photosensitive resin composition of mounting.
[0010]
(3) Above (1)Or (2)A photosensitive element formed by applying and drying a layer of the photosensitive resin composition described above on a support.
(4) Above (1)Or (2)A photosensitive element obtained by coating and drying the photosensitive resin composition layer described above on a support, and further laminating a protective film so as to be in contact with the photosensitive resin composition layer on the opposite side of the support.
(5) the above(3Or (4The photosensitive element described above is laminated so that the photosensitive resin composition layer is in close contact with the circuit forming substrate while peeling off the protective film present in some cases, and actinic rays are irradiated in an image form to expose the exposed portion. A method for producing a resist pattern, which comprises photo-curing and removing unexposed portions by development.
(6) the above(5A method for producing a printed wiring board, comprising etching or plating a circuit-forming substrate on which a resist pattern has been produced, according to the method for producing a resist pattern described in (1).
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail. In the present invention, (meth) acrylic acid means acrylic acid and methacrylic acid corresponding thereto, (meth) acrylate means acrylate and corresponding methacrylate, (meth) acryloyl group means acryloyl group and The corresponding methacryloyl group is meant.
[0012]
The photosensitive resin composition of the present invention comprises (A) a binder polymer, (B) a photopolymerizable compound having at least one polymerizable ethylenically unsaturated bond in the molecule, (C) a photopolymerization initiator, and (D ) In the photosensitive resin composition containing the additive, at least (meth) acrylic acid butyl ester is used as the polymerizable monomer of the component (A).0.1 to 50% by weight based on all copolymer componentsIt contains.
The (A) binder polymer can be produced, for example, by radical polymerization of a polymerizable monomer.
As the polymerizable monomer of the above (A) binder polymer, in addition to (meth) acrylic acid butyl ester, general formula (I)
[0014]
[Chemical1]
And compounds in which a hydroxyl group, an epoxy group, a halogen group or the like is substituted on the alkyl group of these compounds.
[0015]
R in the above general formula (I) 2 Carbon number indicated by5As the alkyl group of ~ 36, BaeExamples include an nyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group, a decyl group, an undecyl group, a dodecyl group, a tridecyl group, a stearyl group, and structural isomers thereof. Examples of the monomer represented by the general formula (I) include, ((Meth) acrylic acid pentyl ester, (meth) acrylic acid hexyl ester, (meth) acrylic acid heptyl ester, (meth) acrylic acid octyl ester, (meth) acrylic acid 2-ethylhexyl ester, (meth) acrylic acid nonyl ester, ( (Meth) acrylic acid decyl ester, (meth) acrylic acid undecyl ester, (meth) acrylic acid dodecyl ester, (meth) acrylic acid tridecyl ester, (meth) acrylic acid stearyl ester, and the like. These can be used alone or in combination of two or more.
[0016]
R in the above general formula (I) 2 Carbon number indicated by5Long chain substituents having ~ 36 include 2- (2-ethoxyethoxy) ethyl group, 2-phenoxyethyl group, caprolactonyl group, polyethoxylated nonylphenyl group, polypropoxylated nonylphenyl group, and structural isomers thereof Is mentioned. Examples of the monomer represented by the general formula (I) include (meth) acrylic acid 2- (2-ethoxyethoxy) ethyl ester, (meth) acrylic acid 2-phenoxyethyl ester, and (meth) acrylic acid. Examples include caprolactonyl ester, (meth) acrylic acid polyethoxylated nonylphenyl ester, (meth) acrylic acid polypropoxylated nonylphenyl ester, and the like. These can be used alone or in combination of two or more.
[0017]
In order to improve the solubility or dispersibility in the developer using (meth) acrylic acid butyl ester as a copolymerization component, 0.1 to 50% by weight is contained.Only1-30% by weightPreferPreferably 1.5 to 27% by weightThanpreferable.
[0018]
Examples of the polymerizable monomer of the (A) binder polymer include polymerizable styrene derivatives substituted at the α-position or aromatic ring such as styrene, vinyltoluene, α-methylstyrene, diacetone acrylamide, etc. Acrylamide, acrylonitrile, vinyl alcohol esters such as vinyl-n-butyl ether, (meth) acrylic acid alkyl ester, (meth) acrylic acid tetrahydrofurfuryl ester, (meth) acrylic acid dimethylaminoethyl ester, (meth) acrylic Acid diethylaminoethyl ester, (meth) acrylic acid glycidyl ester, 2,2,2-trifluoroethyl (meth) acrylate, 2,2,3,3-tetrafluoropropyl (meth) acrylate, (meth) acrylic acid, α -Bromo (meta Acrylic acid, α-chloro (meth) acrylic acid, β-furyl (meth) acrylic acid, β-styryl (meth) acrylic acid, maleic acid, maleic anhydride, monomethyl maleate, monoethyl maleate, monoisopropyl maleate And maleic acid monoesters such as fumaric acid, cinnamic acid, α-cyanocinnamic acid, itaconic acid, crotonic acid, and propiolic acid.
[0019]
Examples of the (meth) acrylic acid alkyl ester include, for example, the general formula (II)
[Chemical2]
And compounds in which a hydroxyl group, an epoxy group, a halogen group or the like is substituted on the alkyl group of these compounds.
[0020]
R in the general formula (II)4As a C1-C3 alkyl group shown by these, a methyl group, an ethyl group, and a propyl group are mentioned, for example. Examples of the monomer represented by the general formula (II) include (meth) acrylic acid methyl ester, (meth) acrylic acid ethyl ester, (meth) acrylic acid propyl ester, and the like. These can be used alone or in combination of two or more.
[0021]
In addition, the binder polymer which is the component (A) in the present invention preferably contains a carboxyl group from the viewpoint of alkali developability, for example, a polymerizable monomer having a carboxyl group and other polymerizable monomers. Can be produced by radical polymerization. Moreover, it is preferable that the binder polymer which is (A) component in this invention contains styrene or a styrene derivative as a polymerizable monomer from a flexible viewpoint.
[0022]
These binder polymers are used alone or in combination of two or more. Here, the dispersity when two or more kinds of binder polymers are combined is the dispersity of the entire component (A) (polymer mixture). As a binder polymer in the case of using two or more types in combination, for example, two or more types of binder polymers comprising different copolymerization components, two or more types of binder polymers having different weight average molecular weights, and two or more types of binder polymers having different degrees of dispersion are used. Examples thereof include a binder polymer. In this case, the dispersity is preferably 2.0 to 3.0.
[0023]
The (A) binder polymer preferably has a dispersity (weight average molecular weight / number average molecular weight) of 1.0 to 3.0, and more preferably 1.5 to 2.5. When the degree of dispersion exceeds 3.0, the adhesiveness and resolution tend to decrease. However, the weight average molecular weight and the number average molecular weight in the present invention are measured by gel permeation chromatography, and values converted to standard polystyrene are used.
[0024]
The weight average molecular weight of the (A) binder polymer is preferably 20,000 to 300,000, and more preferably 40,000 to 150,000. When the weight average molecular weight is less than 20,000, the developer resistance tends to decrease, and when it exceeds 300,000, the development time tends to be long.
[0025]
The (A) binder polymer is not particularly limited as long as the degree of dispersion is 1.0 to 3.0. For example, an acrylic resin, a styrene resin, an epoxy resin, an amide resin, an amide epoxy resin, Examples include alkyd resins and phenol resins. From the viewpoint of alkali developability, an acrylic resin is preferable. These can be used alone or in combination of two or more.
[0026]
The acid value of the (A) binder polymer is preferably 100 to 500 mgKOH / g, and more preferably 100 to 300 mgKOH / g. When the acid value is less than 100 mgKOH / g, the development time tends to be delayed, and when it exceeds 500 mgKOH / g, the developer resistance of the photocured resist tends to be lowered.
[0027]
(B) As a photopolymerizable compound having at least one polymerizable ethylenically unsaturated bond in the molecule, a bisphenol A (meth) acrylate compound and a polyhydric alcohol are reacted with α, β-unsaturated carboxylic acid. A compound obtained by reacting an α, β-unsaturated carboxylic acid with a glycidyl group-containing compound, a urethane monomer such as a (meth) acrylate compound having a urethane bond, nonylphenyldioxylene (meth) acrylate, γ-chloro-β-hydroxypropyl-β ′-(meth) acryloyloxyethyl-o-phthalate, β-hydroxyethyl-β ′-(meth) acryloyloxyethyl-o-phthalate, β-hydroxypropyl-β′- (Meth) acryloyloxyethyl-o-phthalate, (meth) acrylic acid al Examples thereof include kill esters and EO-modified nonylphenyl (meth) acrylate, but it is preferable to use a photopolymerizable compound having one polymerizable ethylenically unsaturated bond in the molecule. These may be used alone or in combination of two or more.
[0028]
Examples of the bisphenol A-based (meth) acrylate compound include 2,2-bis (4-((meth) acryloxypolyethoxy) phenyl) propane and 2,2-bis (4-((meth) acryloxypoly). Propoxy) phenyl) propane, 2,2-bis (4-((meth) acryloxypolybutoxy) phenyl) propane, 2,2-bis (4-((meth) acryloxypolyethoxypolypropoxy) phenyl) propane, etc. Bisphenol A-based (meth) acrylate compounds and the like.
[0029]
Examples of the 2,2-bis (4-((meth) acryloxypolyethoxy) phenyl) propane include 2,2-bis (4-((meth) acryloxydiethoxy) phenyl) propane, 2,2 -Bis (4-((meth) acryloxytriethoxy) phenyl) propane, 2,2-bis (4-((meth) acryloxytetraethoxy) phenyl) propane, 2,2-bis (4-((meta ) Acryloxypentaethoxy) phenyl) propane, 2,2-bis (4-((meth) acryloxyhexaethoxy) phenyl) propane, 2,2-bis (4-((meth) acryloxyheptaethoxy) phenyl) Propane, 2,2-bis (4-((meth) acryloxyoctaethoxy) phenyl) propane, 2,2-bis (4-((meth) acryloxynonane) Xyl) phenyl) propane, 2,2-bis (4-((meth) acryloxydecaethoxy) phenyl), 2,2-bis (4-((meth) acryloxyundecaethoxy) phenyl), 2,2 -Bis (4-((meth) acryloxydodecaethoxy) phenyl), 2,2-bis (4-((meth) acryloxytridecaethoxy) phenyl), 2,2-bis (4-((meth)) (Acryloxytetradecaethoxy) phenyl), 2,2-bis (4-((meth) acryloxypentadecaethoxy) phenyl), 2,2-bis (4-((meth) acryloxyhexadecaethoxy) phenyl) 2,2-bis (4- (methacryloxypentaethoxy) phenyl) propane is commercially available as BPE-500 (product name, manufactured by Shin-Nakamura Chemical Co., Ltd.). Are possible, 2,2-bis (4- (methacryloxy pentadecanoyl) phenyl) is, BPE-1300 (manufactured by Shin-Nakamura Chemical Co., Ltd., product name) is commercially available as. These may be used alone or in combination of two or more.
[0030]
Examples of the 2,2-bis (4-((meth) acryloxypolypropoxy) phenyl) propane include 2,2-bis (4-((meth) acryloxydipropoxy) phenyl) propane, 2,2 -Bis (4-((meth) acryloxytripropoxy) phenyl) propane, 2,2-bis (4-((meth) acryloxytetrapropoxy) phenyl) propane, 2,2-bis (4-((meta ) Acryloxypentapropoxy) phenyl) propane, 2,2-bis (4-((meth) acryloxyhexapropoxy) phenyl) propane, 2,2-bis (4-((meth) acryloxyheptapropoxy) phenyl) Propane, 2,2-bis (4-((meth) acryloxyoctapropoxy) phenyl) propane, 2,2-bis (4-((meth) a) Liloxynonapropoxy) phenyl) propane, 2,2-bis (4-((meth) acryloxydecapropoxy) phenyl), 2,2-bis (4-((meth) acryloxyundecapropoxy) phenyl), 2,2-bis (4-((meth) acryloxydodecapropoxy) phenyl), 2,2-bis (4-((meth) acryloxytridecapropoxy) phenyl), 2,2-bis (4- ( (Meth) acryloxytetradecapropoxy) phenyl), 2,2-bis (4-((meth) acryloxypentadecapropoxy) phenyl), 2,2-bis (4-((meth) acryloxyhexadecapropoxy) ) Phenyl) and the like. These may be used alone or in combination of two or more.
[0031]
Examples of the 2,2-bis (4-((meth) acryloxypolyethoxypolypropoxy) phenyl) propane include 2,2-bis (4-((meth) acryloxydiethoxyoctapropoxy) phenyl) propane. 2,2-bis (4-((meth) acryloxytetraethoxytetrapropoxy) phenyl) propane, 2,2-bis (4-((meth) acryloxyhexaethoxyhexapropoxy) phenyl) propane and the like. . These may be used alone or in combination of two or more.
[0032]
Examples of the compound obtained by reacting the polyhydric alcohol with an α, β-unsaturated carboxylic acid include, for example, polyethylene glycol di (meth) acrylate having 2 to 14 ethylene groups and 2 to 2 propylene groups. Polypropylene glycol di (meth) acrylate being 14, polyethylene polyethylene glycol di (meth) acrylate having 2 to 14 ethylene groups and 2 to 14 propylene groups, trimethylolpropane di (meth) acrylate, Trimethylolpropane tri (meth) acrylate, trimethylolpropane ethoxytri (meth) acrylate, trimethylolpropane diethoxytri (meth) acrylate, trimethylolpropane triethoxytri (meth) acrylate, trimethylolpropane tetraeth Xyltri (meth) acrylate, trimethylolpropane pentaethoxytri (meth) acrylate, tetramethylolmethanetri (meth) acrylate, tetramethylolmethanetetra (meth) acrylate, polypropylene glycol di (meth) having 2 to 14 propylene groups ) Acrylate, dipentaerythritol penta (meth) acrylate, dipentaerythritol hexa (meth) acrylate, and the like.
Examples of the α, β-unsaturated carboxylic acid include (meth) acrylic acid.
[0033]
Examples of the glycidyl group-containing compound include trimethylolpropane triglycidyl ether tri (meth) acrylate, 2,2-bis (4- (meth) acryloxy-2-hydroxy-propyloxy) phenyl, and the like.
[0034]
Examples of the urethane monomer include a (meth) acryl monomer having an OH group at the β-position and a diisocyanate compound such as isophorone diisocyanate, 2,6-toluene diisocyanate, 2,4-toluene diisocyanate, and 1,6-hexamethylene diisocyanate. Addition reaction product, tris ((meth) acryloxytetraethylene glycol isocyanate) hexamethylene isocyanurate, EO-modified urethane di (meth) acrylate, EO, PO-modified urethane di (meth) acrylate, and the like. Note that EO represents ethylene oxide, and the EO-modified compound has a block structure of an ethylene oxide group. PO represents propylene oxide, and the PO-modified compound has a block structure of propylene oxide groups. Examples of the EO-modified urethane di (meth) acrylate include the product name UA-11 manufactured by Shin-Nakamura Chemical Co., Ltd. Examples of EO and PO-modified urethane di (meth) acrylates include the product name UA-13 manufactured by Shin-Nakamura Chemical Co., Ltd.
[0035]
Examples of the (meth) acrylic acid alkyl ester include (meth) acrylic acid methyl ester, (meth) acrylic acid ethyl ester, (meth) acrylic acid butyl ester, (meth) acrylic acid 2-ethylhexyl ester, and the like. .
[0036]
Examples of the photopolymerization initiator of the component (C) in the present invention include the following photopolymerization initiators. In the present invention, as the component (C), at least 1,7-bis (9-Acridinyl) heptane is used. Examples of the photopolymerization initiator include benzophenone, N, N′-tetramethyl-4,4′-diaminobenzophenone (Michler ketone), N, N′-tetraethyl-4,4′-diaminobenzophenone, 4-methoxy-4. '-Dimethylaminobenzophenone, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) -butanone-1, 2-methyl-1- [4- (methylthio) phenyl] -2-morpholino-propanone-1 Aromatic ketones such as 2-ethylanthraquinone, phenanthrenequinone, 2-tert-butylanthraquinone, octamethylanthraquinone, 1,2-benzanthraquinone, 2,3-benzanthraquinone, 2-phenylanthraquinone, 2,3-diphenylanthraquinone 1-chloroanthraquinone, 2- Quinones such as tilanthraquinone, 1,4-naphthoquinone, 9,10-phenantharaquinone, 2-methyl 1,4-naphthoquinone, 2,3-dimethylanthraquinone, benzoin methyl ether, benzoin ethyl ether, benzoin phenyl ether, etc. Benzoin ether compounds, benzoin compounds such as benzoin, methylbenzoin, ethylbenzoin, benzyl derivatives such as benzyldimethyl ketal, 2- (o-chlorophenyl) -4,5-diphenylimidazole dimer, 2- (o-chlorophenyl)- 4,5-di (methoxyphenyl) imidazole dimer, 2- (o-fluorophenyl) -4,5-diphenylimidazole dimer, 2- (o-methoxyphenyl) -4,5-diphenylimidazole dimer Body, 2- (p-methoxy 2,4,5-triarylimidazole dimers such as phenyl) -4,5-diphenylimidazole dimer, 9-phenylacridine, 1,7-bis (9-Acridinyl) heptane and other acridine derivatives, N-phenylglycine, N-phenylglycine derivatives, coumarin compounds and the like. Further, the substituents of the aryl groups of two 2,4,5-triarylimidazoles may be the same to give the target compound, or differently give an asymmetric compound. Moreover, you may combine a thioxanthone type compound and a tertiary amine compound like the combination of diethyl thioxanthone and dimethylaminobenzoic acid. From the viewpoint of adhesion and sensitivity, 2,4,5-triarylimidazole dimer is more preferable. These are used alone or in combination of two or more.
[0037]
The blending amount of the (A) binder polymer is preferably 40 to 80 parts by weight and more preferably 45 to 70 parts by weight with respect to 100 parts by weight of the total amount of the components (A) and (B). preferable. If the blending amount is less than 40 parts by weight, the photocured product tends to be brittle, and when used as a photosensitive element, the coating property tends to be inferior, and if it exceeds 80 parts by weight, the photosensitivity tends to be insufficient. is there.
[0038]
The blending amount of the (B) photopolymerizable compound is preferably 20 to 60 parts by weight, and preferably 30 to 55 parts by weight with respect to 100 parts by weight of the total amount of the components (A) and (B). Is more preferable. If the amount is less than 20 parts by weight, the photosensitivity tends to be insufficient, and if it exceeds 60 parts by weight, the photocured product tends to be brittle.
[0039]
The blending amount of the (C) photopolymerization initiator is preferably 0.01 to 10 parts by weight, and 0.2 to 5 parts by weight with respect to 100 parts by weight of the total amount of the components (A) and (B). More preferably, it is a part. If the blending amount is less than 0.01 parts by weight, the photosensitivity tends to be insufficient, and if it exceeds 10 parts by weight, the absorption on the surface of the composition increases during exposure and the internal photocuring is insufficient. Tend to be.
[0040]
In addition, the photosensitive resin composition of the present invention includes, if necessary, dyes such as malachite green, photochromic agents such as tribromophenyl sulfone and leuco crystal violet, thermochromic inhibitors, p-toluenesulfonamide and the like. Plasticizers, pigments, fillers, antifoaming agents, flame retardants, stabilizers, adhesion-imparting agents, leveling agents, peeling accelerators, antioxidants, fragrances, imaging agents, thermal cross-linking agents, etc. (A) and ( B) About 0.005 to 20 parts by weight can be contained per 100 parts by weight of the total component. These are used alone or in combination of two or more.
[0041]
If necessary, the photosensitive resin composition of the present invention is a solvent such as methanol, ethanol, acetone, methyl ethyl ketone, methyl cellosolve, ethyl cellosolve, toluene, N, N-dimethylformamide, propylene glycol monomethyl ether, or a mixed solvent thereof. And can be applied as a solution having a solid content of about 30 to 60% by weight.
[0042]
The photosensitive resin composition of the present invention is not particularly limited, but a metal surface, for example, an iron-based alloy such as copper, copper-based alloy, nickel, chromium, iron, stainless steel, preferably copper, copper-based alloy, iron-based It is preferable that the surface of the alloy is applied as a liquid resist and dried, and then coated with a protective film if necessary, or used in the form of a photosensitive element.
[0043]
Moreover, although the thickness of the photosensitive resin composition layer changes with uses, it is preferable that it is 1-100 micrometers by the thickness after drying, and it is more preferable that it is 1-50 micrometers. If the thickness is less than 1 μm, it tends to be difficult to apply industrially.
[0044]
The transmittance of the photosensitive resin composition layer with respect to ultraviolet rays having a wavelength of 365 nm is preferably 5 to 75%, more preferably 7 to 60%, and particularly preferably 10 to 40%. If the transmittance is less than 5%, the adhesion tends to be inferior, and if it exceeds 75%, the resolution tends to be inferior. The transmittance can be measured by a UV spectrometer, and examples of the UV spectrometer include a 228A type W beam spectrophotometer manufactured by Hitachi, Ltd.
[0045]
When used as the photosensitive element, the support preferably has a thickness of 5 to 25 μm, more preferably 8 to 20 μm, and particularly preferably 10 to 16 μm. If the thickness is less than 5 μm, the support before development tends to be broken upon peeling, and if it exceeds 25 μm, the resolution tends to decrease.
[0046]
Examples of the support include heat-resistant and solvent-resistant polymer films such as polyethylene terephthalate, polypropylene, polyethylene, and polyester.
[0047]
When used as the photosensitive element, the protective film preferably has a thickness of 5 to 30 μm, more preferably 10 to 28 μm, and particularly preferably 15 to 25 μm. When the thickness is less than 5 μm, the protective film tends to be broken during lamination, and when it exceeds 30 μm, the cost tends to be inferior.
[0048]
In addition, since these support and protective film must be removable from the photosensitive resin composition layer later, they should not be subjected to a surface treatment that makes removal impossible. There is no limit and processing may be performed as necessary. Furthermore, these supports and protective films may be subjected to antistatic treatment as necessary.
[0049]
The photosensitive element consisting of two layers of the support and the photosensitive resin composition layer thus obtained and the photosensitive element consisting of three layers of the support, the photosensitive resin composition layer and the protective film are, for example, The protective film is further laminated on the other surface of the photosensitive resin composition layer as it is, and is wound and stored in a roll shape.
[0050]
When manufacturing the resist pattern using the photosensitive element, if the protective film is present, the protective film is removed, and then the photosensitive resin composition layer is heated and pressure-bonded to the circuit forming substrate. The method of laminating by doing, etc. are mentioned, It is preferable to laminate | stack under reduced pressure from the viewpoint of adhesiveness and followable | trackability. The surface to be laminated is usually a metal surface, but is not particularly limited. The heating temperature of the photosensitive resin composition layer is preferably 70 to 130 ° C., and the pressure is about 0.1 to 1.0 MPa (1 to 10 kgf / cm).2However, these conditions are not particularly limited. In addition, if the photosensitive resin composition layer is heated to 70 to 130 ° C. as described above, it is not necessary to pre-heat the circuit forming substrate in advance, but in order to further improve the laminating property, Pre-heat treatment of the substrate can also be performed.
[0051]
The photosensitive resin composition layer thus laminated is irradiated with actinic rays in an image form through a negative or positive mask pattern called an artwork. Under the present circumstances, when the polymer film which exists on the photosensitive resin composition layer is transparent, you may irradiate actinic light as it is, and when it is opaque, it is necessary to remove naturally. As the light source of actinic light, a known light source such as a carbon arc lamp, a mercury vapor arc lamp, an ultrahigh pressure mercury lamp, a high pressure mercury lamp, or a xenon lamp that emits ultraviolet rays effectively is used. Moreover, what emits visible light effectively, such as a photographic flood light bulb and a solar lamp, is also used.
[0052]
Next, after the exposure, when a support is present on the photosensitive resin composition layer, the support is removed, and then the unexposed area is removed and developed by wet development, dry development, etc. Manufacturing. In the case of wet development, development is performed by a known method such as spraying, rocking immersion, brushing, or scraping, using a developer corresponding to the photosensitive resin composition such as an alkaline aqueous solution, an aqueous developer, or an organic solvent. To do. As the developing solution, a safe and stable solution having good operability such as an alkaline aqueous solution is used. Examples of the base of the alkaline aqueous solution include alkali hydroxides such as lithium, sodium or potassium hydroxide, alkali carbonates such as lithium, sodium, potassium or ammonium carbonate or bicarbonate, potassium phosphate, and phosphoric acid. Alkali metal phosphates such as sodium and alkali metal pyrophosphates such as sodium pyrophosphate and potassium pyrophosphate are used. Examples of the alkaline aqueous solution used for development include a dilute solution of 0.1 to 5 wt% sodium carbonate, a dilute solution of 0.1 to 5 wt% potassium carbonate, a dilute solution of 0.1 to 5 wt% sodium hydroxide, A dilute solution of 0.1 to 5% by weight sodium tetraborate is preferred. Moreover, it is preferable to make pH of the alkaline aqueous solution used for image development into the range of 9-11, and the temperature is adjusted according to the developability of the photosensitive resin composition layer. Further, in the alkaline aqueous solution, a surfactant, an antifoaming agent, a small amount of an organic solvent for accelerating development, and the like may be mixed. The aqueous developer comprises water or an alkaline aqueous solution and one or more organic solvents. Examples of the alkaline substance include borax, sodium metasilicate, tetramethylammonium hydroxide, ethanolamine, ethylenediamine, diethylenetriamine, 2-amino-2-hydroxymethyl-1,3-propanediol, 1 , 3-diaminopropanol-2, morpholine and the like. The pH of the developer is preferably as low as possible within a range where the resist can be sufficiently developed, preferably pH 8-12, more preferably pH 9-10. Examples of the organic solvent include 3 acetone alcohol, acetone, ethyl acetate, alkoxyethanol having an alkoxy group having 1 to 4 carbon atoms, ethyl alcohol, isopropyl alcohol, butyl alcohol, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol mono And butyl ether. These are used alone or in combination of two or more. The concentration of the organic solvent is usually preferably 2 to 90% by weight, and the temperature can be adjusted according to the developability. Further, a small amount of a surfactant, an antifoaming agent or the like can be mixed in the aqueous developer. Examples of the organic solvent developer used alone include 1,1,1-trichloroethane, N-methylpyrrolidone, N, N-dimethylformamide, cyclohexanone, methyl isobutyl ketone, and γ-butyrolactone. These organic solvents preferably add water in the range of 1 to 20% by weight in order to prevent ignition. Moreover, you may use together 2 or more types of image development methods as needed. Development methods include a dip method, a battle method, a spray method, brushing, and slapping, and the high pressure spray method is most suitable for improving the resolution.
[0053]
As processing after development, heating at about 60 to 250 ° C. or 0.2 to 10 mJ / cm as necessary2The resist pattern may be further cured and used by performing exposure to a certain extent.
[0054]
For etching the metal surface after development, a cupric chloride solution, a ferric chloride solution, an alkaline etching solution, or a hydrogen peroxide-based etching solution can be used, but ferric chloride is used because of its good etch factor. It is desirable to use a solution.
[0055]
When a printed wiring board is produced using the photosensitive element of the present invention, the surface of the circuit forming substrate is treated by a known method such as etching or plating using the developed resist pattern as a mask. Examples of the plating method include copper plating such as copper sulfate plating and copper pyrophosphate plating, solder plating such as high-throw solder plating, nickel plating such as watt bath (nickel sulfate-nickel chloride) plating, nickel sulfamate plating, and hard There are gold plating such as gold plating and soft gold plating. Next, the resist pattern can be peeled off with a stronger alkaline aqueous solution than the alkaline aqueous solution used for development, for example. As this strongly alkaline aqueous solution, for example, a 1 to 10% by weight sodium hydroxide aqueous solution, a 1 to 10% by weight potassium hydroxide aqueous solution and the like are used. Examples of the peeling method include an immersion method and a spray method, and the immersion method and the spray method may be used alone or in combination. The printed wiring board on which the resist pattern is formed may be a multilayer printed wiring board.
[0056]
【Example】
Hereinafter, the present invention will be described with reference to examples.
Example1And Comparative Examples 1 to7
The materials shown in Table 1 were blended to obtain a photosensitive resin composition solution.
[0057]
[Table 1]
[Table 2]
Next, the obtained photosensitive resin composition solution was uniformly applied onto a 16 μm-thick polyethylene terephthalate film (trade name G2-16, manufactured by Teijin Ltd.), and 10 times with a hot air convection dryer at 100 ° C. After drying for a minute, it was protected with a polyethylene protective film (trade name: NF-13, manufactured by Tamapoly Co., Ltd.) to obtain a photosensitive resin composition laminate. The film thickness after drying of the photosensitive resin composition layer was 40 μm.
[0060]
Next, using a 1% by weight aqueous sodium carbonate solution, the film dissolution amount is 0.6 m.2A developer solution of / L was prepared, and the developer foaming property and oily substance generation property were observed when it was circulated for 90 minutes in a small developing machine (0.08 MPa, 30 ° C.). Here, generation | occurrence | production of an oily substance is suppressed, so that solubility or dispersibility with respect to a developing solution is high.
[0061]
Next, after the observed developer was transferred to a plastic bottle and allowed to stand for 7 days, the plastic bottle was shaken 10 times, and then the developer was removed and the removal of deposits deposited on the bottom of the plastic bottle was observed. . Here, the higher the solubility or dispersibility in the developer, the smaller the amount of deposits and the better the removability.
The above results are summarized in Table 3.
[0062]
[Table 3]
[0063]
【The invention's effect】
The invention described in claim 1 provides a photosensitive resin composition having excellent photosensitivity, adhesion, resolution, chemical resistance, mechanical strength, peeling properties, flexibility, and solubility or dispersibility in a developer. This is useful for increasing the density and resolution of printed wiring.
The invention described in claim 2 provides the photosensitive resin composition having the effects of the invention described in claim 1, further improving the solubility or dispersibility in the developer, and having excellent developer characteristics.
The invention described in claim 3 provides a photosensitive resin composition having excellent photosensitivity, resolution and adhesion in addition to the effects of the invention described in claim 1 or 2.
Invention of Claim 4, 5, 6 or 7 provides the photosensitive resin composition laminated body which is excellent in photosensitivity, adhesiveness, resolution, chemical resistance, mechanical strength, peeling characteristics, and a softness | flexibility.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002308566A JP4240282B2 (en) | 2002-10-23 | 2002-10-23 | Photosensitive resin composition, photosensitive element using the same, resist pattern manufacturing method, and printed wiring board manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002308566A JP4240282B2 (en) | 2002-10-23 | 2002-10-23 | Photosensitive resin composition, photosensitive element using the same, resist pattern manufacturing method, and printed wiring board manufacturing method |
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| Publication Number | Publication Date |
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| JP2004144917A JP2004144917A (en) | 2004-05-20 |
| JP4240282B2 true JP4240282B2 (en) | 2009-03-18 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101141841B1 (en) | 2005-10-25 | 2012-05-08 | 히다치 가세고교 가부시끼가이샤 | Photosensitive resin composition, photosensitive element comprising the same, method of forming resist pattern, and process for producing printed wiring board |
| US8460852B2 (en) * | 2008-04-28 | 2013-06-11 | Hitachi Chemical Company, Ltd. | Photosensitive resin composition, photosensitive element, method for forming resist pattern and method for manufacturing printed wiring board |
| EP2284611B1 (en) * | 2008-06-02 | 2013-11-20 | Hitachi Chemical Company, Ltd. | Photosensitive resin composition, photosensitive element, resist pattern manufacturing method, and printed circuit board manufacturing method |
| MY151102A (en) * | 2009-03-13 | 2014-04-15 | Hitachi Chemical Co Ltd | Photosensitive resin composition, and photosensitive element, resist pattern formation method and printed circuit board production method each utilizing same |
| JP5488866B2 (en) * | 2009-03-16 | 2014-05-14 | 日立化成株式会社 | Photosensitive element, resist pattern forming method using the same, and printed wiring board manufacturing method |
| JP5435259B2 (en) * | 2009-03-16 | 2014-03-05 | 日立化成株式会社 | Photosensitive resin composition, photosensitive element using the same, resist pattern forming method, and printed wiring board manufacturing method |
| JP4873043B2 (en) * | 2009-04-28 | 2012-02-08 | 日立化成工業株式会社 | Photosensitive resin composition, photosensitive element using the same, method for forming partition of image display device, and method for manufacturing image display device |
| JP5673762B2 (en) * | 2013-09-17 | 2015-02-18 | 日立化成株式会社 | Photosensitive element, resist pattern forming method using the same, and printed wiring board manufacturing method |
| JP5673763B2 (en) * | 2013-09-17 | 2015-02-18 | 日立化成株式会社 | Photosensitive resin composition, photosensitive element using the same, resist pattern forming method, and printed wiring board manufacturing method |
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