WO2012157696A1 - 感光性シロキサン樹脂組成物 - Google Patents
感光性シロキサン樹脂組成物 Download PDFInfo
- Publication number
- WO2012157696A1 WO2012157696A1 PCT/JP2012/062611 JP2012062611W WO2012157696A1 WO 2012157696 A1 WO2012157696 A1 WO 2012157696A1 JP 2012062611 W JP2012062611 W JP 2012062611W WO 2012157696 A1 WO2012157696 A1 WO 2012157696A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- siloxane resin
- group
- photosensitive
- resin composition
- ether
- Prior art date
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- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 239000011342 resin composition Substances 0.000 title claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 76
- 239000011347 resin Substances 0.000 claims abstract description 75
- 229920005989 resin Polymers 0.000 claims abstract description 75
- 125000005372 silanol group Chemical group 0.000 claims abstract description 33
- 150000003983 crown ethers Chemical class 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 23
- 239000011248 coating agent Substances 0.000 claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 20
- 125000005370 alkoxysilyl group Chemical group 0.000 claims abstract description 18
- 239000003960 organic solvent Substances 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 14
- 239000003504 photosensitizing agent Substances 0.000 claims abstract description 9
- 239000012670 alkaline solution Substances 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims description 23
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 13
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 8
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 7
- QVEIBLDXZNGPHR-UHFFFAOYSA-N naphthalene-1,4-dione;diazide Chemical compound [N-]=[N+]=[N-].[N-]=[N+]=[N-].C1=CC=C2C(=O)C=CC(=O)C2=C1 QVEIBLDXZNGPHR-UHFFFAOYSA-N 0.000 claims description 7
- 239000003999 initiator Substances 0.000 claims description 5
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 5
- 125000003277 amino group Chemical group 0.000 claims description 4
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 125000001453 quaternary ammonium group Chemical group 0.000 claims description 3
- 125000005605 benzo group Chemical group 0.000 claims description 2
- 239000003513 alkali Substances 0.000 abstract description 12
- 239000000243 solution Substances 0.000 abstract description 12
- 238000010304 firing Methods 0.000 abstract description 11
- 230000007261 regionalization Effects 0.000 abstract description 4
- 206010034972 Photosensitivity reaction Diseases 0.000 abstract description 2
- 230000036211 photosensitivity Effects 0.000 abstract description 2
- -1 polysiloxanes Polymers 0.000 description 56
- 239000003795 chemical substances by application Substances 0.000 description 16
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 15
- 239000007864 aqueous solution Substances 0.000 description 15
- 239000002904 solvent Substances 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 11
- 239000004065 semiconductor Substances 0.000 description 11
- 230000035945 sensitivity Effects 0.000 description 11
- 125000001424 substituent group Chemical group 0.000 description 11
- 238000001723 curing Methods 0.000 description 10
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 10
- 238000011161 development Methods 0.000 description 9
- 230000018109 developmental process Effects 0.000 description 9
- 238000003860 storage Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 125000004432 carbon atom Chemical group C* 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 7
- 229920001296 polysiloxane Polymers 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- UWQPDVZUOZVCBH-UHFFFAOYSA-N 2-diazonio-4-oxo-3h-naphthalen-1-olate Chemical class C1=CC=C2C(=O)C(=[N+]=[N-])CC(=O)C2=C1 UWQPDVZUOZVCBH-UHFFFAOYSA-N 0.000 description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000000654 additive Substances 0.000 description 6
- 125000003118 aryl group Chemical group 0.000 description 6
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 6
- 125000000524 functional group Chemical group 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 239000004973 liquid crystal related substance Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- 239000004094 surface-active agent Substances 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 5
- 125000000217 alkyl group Chemical group 0.000 description 5
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 5
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000012776 electronic material Substances 0.000 description 5
- 235000019441 ethanol Nutrition 0.000 description 5
- 238000005227 gel permeation chromatography Methods 0.000 description 5
- 238000007654 immersion Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- MFKRHJVUCZRDTF-UHFFFAOYSA-N 3-methoxy-3-methylbutan-1-ol Chemical compound COC(C)(C)CCO MFKRHJVUCZRDTF-UHFFFAOYSA-N 0.000 description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 4
- 230000007062 hydrolysis Effects 0.000 description 4
- 238000006460 hydrolysis reaction Methods 0.000 description 4
- 230000003301 hydrolyzing effect Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 125000004430 oxygen atom Chemical group O* 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 150000005846 sugar alcohols Polymers 0.000 description 4
- ZNOCGWVLWPVKAO-UHFFFAOYSA-N trimethoxy(phenyl)silane Chemical compound CO[Si](OC)(OC)C1=CC=CC=C1 ZNOCGWVLWPVKAO-UHFFFAOYSA-N 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 125000003342 alkenyl group Chemical group 0.000 description 3
- 150000004657 carbamic acid derivatives Chemical class 0.000 description 3
- 238000004040 coloring Methods 0.000 description 3
- 238000006482 condensation reaction Methods 0.000 description 3
- 125000000753 cycloalkyl group Chemical group 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 3
- 239000002736 nonionic surfactant Substances 0.000 description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical group CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 3
- 238000004528 spin coating Methods 0.000 description 3
- BMVXCPBXGZKUPN-UHFFFAOYSA-N 1-hexanamine Chemical compound CCCCCCN BMVXCPBXGZKUPN-UHFFFAOYSA-N 0.000 description 2
- VFTFKUDGYRBSAL-UHFFFAOYSA-N 15-crown-5 Chemical compound C1COCCOCCOCCOCCO1 VFTFKUDGYRBSAL-UHFFFAOYSA-N 0.000 description 2
- XEZNGIUYQVAUSS-UHFFFAOYSA-N 18-crown-6 Chemical compound C1COCCOCCOCCOCCOCCO1 XEZNGIUYQVAUSS-UHFFFAOYSA-N 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 2
- ALYNCZNDIQEVRV-UHFFFAOYSA-N 4-aminobenzoic acid Chemical compound NC1=CC=C(C(O)=O)C=C1 ALYNCZNDIQEVRV-UHFFFAOYSA-N 0.000 description 2
- VQVIHDPBMFABCQ-UHFFFAOYSA-N 5-(1,3-dioxo-2-benzofuran-5-carbonyl)-2-benzofuran-1,3-dione Chemical compound C1=C2C(=O)OC(=O)C2=CC(C(C=2C=C3C(=O)OC(=O)C3=CC=2)=O)=C1 VQVIHDPBMFABCQ-UHFFFAOYSA-N 0.000 description 2
- FFWSICBKRCICMR-UHFFFAOYSA-N 5-methyl-2-hexanone Chemical compound CC(C)CCC(C)=O FFWSICBKRCICMR-UHFFFAOYSA-N 0.000 description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 125000003545 alkoxy group Chemical group 0.000 description 2
- 150000005215 alkyl ethers Chemical class 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 2
- 239000000908 ammonium hydroxide Substances 0.000 description 2
- 125000003710 aryl alkyl group Chemical group 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 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 2
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- PAFZNILMFXTMIY-UHFFFAOYSA-N cyclohexylamine Chemical compound NC1CCCCC1 PAFZNILMFXTMIY-UHFFFAOYSA-N 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 150000002390 heteroarenes Chemical class 0.000 description 2
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- KRIOVPPHQSLHCZ-UHFFFAOYSA-N propiophenone Chemical compound CCC(=O)C1=CC=CC=C1 KRIOVPPHQSLHCZ-UHFFFAOYSA-N 0.000 description 2
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 2
- 125000000547 substituted alkyl group Chemical group 0.000 description 2
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 description 2
- ZSOVVFMGSCDMIF-UHFFFAOYSA-N trimethoxy(naphthalen-1-yl)silane Chemical compound C1=CC=C2C([Si](OC)(OC)OC)=CC=CC2=C1 ZSOVVFMGSCDMIF-UHFFFAOYSA-N 0.000 description 2
- HHKHIVJJQNWPFU-UHFFFAOYSA-N (2,6-dinitrophenyl)methyl N-[2-[(2,6-dinitrophenyl)methoxycarbonylamino]ethyl]carbamate Chemical compound [N+](=O)([O-])C1=C(COC(=O)NCCNC(=O)OCC2=C(C=CC=C2[N+](=O)[O-])[N+](=O)[O-])C(=CC=C1)[N+](=O)[O-] HHKHIVJJQNWPFU-UHFFFAOYSA-N 0.000 description 1
- XPALFYDBFJWLOV-UHFFFAOYSA-N (2,6-dinitrophenyl)methyl N-[2-[(2,6-dinitrophenyl)methoxycarbonylamino]phenyl]carbamate Chemical compound [N+](=O)([O-])C1=C(COC(=O)NC2=C(C=CC=C2)NC(=O)OCC2=C(C=CC=C2[N+](=O)[O-])[N+](=O)[O-])C(=CC=C1)[N+](=O)[O-] XPALFYDBFJWLOV-UHFFFAOYSA-N 0.000 description 1
- JYFDLIRNXRBOKH-UHFFFAOYSA-N (2,6-dinitrophenyl)methyl N-butylcarbamate Chemical compound CCCCNC(=O)OCc1c(cccc1[N+]([O-])=O)[N+]([O-])=O JYFDLIRNXRBOKH-UHFFFAOYSA-N 0.000 description 1
- REPNLHVPISRIIU-UHFFFAOYSA-N (2,6-dinitrophenyl)methyl n-[6-[(2,6-dinitrophenyl)methoxycarbonylamino]hexyl]carbamate Chemical compound [O-][N+](=O)C1=CC=CC([N+]([O-])=O)=C1COC(=O)NCCCCCCNC(=O)OCC1=C([N+]([O-])=O)C=CC=C1[N+]([O-])=O REPNLHVPISRIIU-UHFFFAOYSA-N 0.000 description 1
- VVPACERGROHTSS-UHFFFAOYSA-N (2,6-dinitrophenyl)methyl n-hexylcarbamate Chemical compound CCCCCCNC(=O)OCC1=C([N+]([O-])=O)C=CC=C1[N+]([O-])=O VVPACERGROHTSS-UHFFFAOYSA-N 0.000 description 1
- IXNMUFZWEFURFP-UHFFFAOYSA-N (2,6-dinitrophenyl)methyl n-methylcarbamate Chemical compound CNC(=O)OCC1=C([N+]([O-])=O)C=CC=C1[N+]([O-])=O IXNMUFZWEFURFP-UHFFFAOYSA-N 0.000 description 1
- SDSYKTIIBSOEMS-UHFFFAOYSA-N (2,6-dinitrophenyl)methyl n-phenylcarbamate Chemical compound [O-][N+](=O)C1=CC=CC([N+]([O-])=O)=C1COC(=O)NC1=CC=CC=C1 SDSYKTIIBSOEMS-UHFFFAOYSA-N 0.000 description 1
- LCDGHOWMFYQPTF-UHFFFAOYSA-N (2,6-dinitrophenyl)methyl n-propylcarbamate Chemical compound CCCNC(=O)OCC1=C([N+]([O-])=O)C=CC=C1[N+]([O-])=O LCDGHOWMFYQPTF-UHFFFAOYSA-N 0.000 description 1
- LKUPURXSAPJFEO-UHFFFAOYSA-N (2-nitrophenyl)methyl 2-[1,1-diamino-2-[(2-nitrophenyl)methoxy]-2-oxoethyl]benzoate Chemical compound C=1C=CC=C(C(=O)OCC=2C(=CC=CC=2)[N+]([O-])=O)C=1C(N)(N)C(=O)OCC1=CC=CC=C1[N+]([O-])=O LKUPURXSAPJFEO-UHFFFAOYSA-N 0.000 description 1
- NOPRZYCNRLSSMW-UHFFFAOYSA-N (2-nitrophenyl)methyl N-[2-[(2-nitrophenyl)methoxycarbonylamino]phenyl]carbamate Chemical compound [N+](=O)([O-])C1=C(COC(=O)NC2=C(C=CC=C2)NC(=O)OCC2=C(C=CC=C2)[N+](=O)[O-])C=CC=C1 NOPRZYCNRLSSMW-UHFFFAOYSA-N 0.000 description 1
- OZYMYLVMDVAQAK-UHFFFAOYSA-N (2-nitrophenyl)methyl n-[6-[(2-nitrophenyl)methoxycarbonylamino]hexyl]carbamate Chemical compound [O-][N+](=O)C1=CC=CC=C1COC(=O)NCCCCCCNC(=O)OCC1=CC=CC=C1[N+]([O-])=O OZYMYLVMDVAQAK-UHFFFAOYSA-N 0.000 description 1
- NJMCHQONLVUNAM-UHFFFAOYSA-N (2-nitrophenyl)methyl n-cyclohexylcarbamate Chemical compound [O-][N+](=O)C1=CC=CC=C1COC(=O)NC1CCCCC1 NJMCHQONLVUNAM-UHFFFAOYSA-N 0.000 description 1
- KHWCDPQWVYCOHU-UHFFFAOYSA-N (2-nitrophenyl)methyl n-methylcarbamate Chemical compound CNC(=O)OCC1=CC=CC=C1[N+]([O-])=O KHWCDPQWVYCOHU-UHFFFAOYSA-N 0.000 description 1
- AHBXIXRJLUDQNU-UHFFFAOYSA-N (2-nitrophenyl)methyl n-phenylcarbamate Chemical compound [O-][N+](=O)C1=CC=CC=C1COC(=O)NC1=CC=CC=C1 AHBXIXRJLUDQNU-UHFFFAOYSA-N 0.000 description 1
- NMBYCLRBSJQLDA-UHFFFAOYSA-N (2-nitrophenyl)methyl n-propylcarbamate Chemical compound CCCNC(=O)OCC1=CC=CC=C1[N+]([O-])=O NMBYCLRBSJQLDA-UHFFFAOYSA-N 0.000 description 1
- ZZEHWWYWZYFYBV-UHFFFAOYSA-N (2-nitrophenyl)methyl piperidine-1-carboxylate Chemical compound [O-][N+](=O)C1=CC=CC=C1COC(=O)N1CCCCC1 ZZEHWWYWZYFYBV-UHFFFAOYSA-N 0.000 description 1
- RYNQKSJRFHJZTK-UHFFFAOYSA-N (3-methoxy-3-methylbutyl) acetate Chemical compound COC(C)(C)CCOC(C)=O RYNQKSJRFHJZTK-UHFFFAOYSA-N 0.000 description 1
- OYHQOLUKZRVURQ-NTGFUMLPSA-N (9Z,12Z)-9,10,12,13-tetratritiooctadeca-9,12-dienoic acid Chemical compound C(CCCCCCC\C(=C(/C\C(=C(/CCCCC)\[3H])\[3H])\[3H])\[3H])(=O)O OYHQOLUKZRVURQ-NTGFUMLPSA-N 0.000 description 1
- FFJCNSLCJOQHKM-CLFAGFIQSA-N (z)-1-[(z)-octadec-9-enoxy]octadec-9-ene Chemical compound CCCCCCCC\C=C/CCCCCCCCOCCCCCCCC\C=C/CCCCCCCC FFJCNSLCJOQHKM-CLFAGFIQSA-N 0.000 description 1
- LZDKZFUFMNSQCJ-UHFFFAOYSA-N 1,2-diethoxyethane Chemical compound CCOCCOCC LZDKZFUFMNSQCJ-UHFFFAOYSA-N 0.000 description 1
- VPBZZPOGZPKYKX-UHFFFAOYSA-N 1,2-diethoxypropane Chemical compound CCOCC(C)OCC VPBZZPOGZPKYKX-UHFFFAOYSA-N 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229940073455 tetraethylammonium hydroxide Drugs 0.000 description 1
- LRGJRHZIDJQFCL-UHFFFAOYSA-M tetraethylazanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC LRGJRHZIDJQFCL-UHFFFAOYSA-M 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- QEMXHQIAXOOASZ-UHFFFAOYSA-N tetramethylammonium Chemical compound C[N+](C)(C)C QEMXHQIAXOOASZ-UHFFFAOYSA-N 0.000 description 1
- ZQZCOBSUOFHDEE-UHFFFAOYSA-N tetrapropyl silicate Chemical compound CCCO[Si](OCCC)(OCCC)OCCC ZQZCOBSUOFHDEE-UHFFFAOYSA-N 0.000 description 1
- LPSKDVINWQNWFE-UHFFFAOYSA-M tetrapropylazanium;hydroxide Chemical compound [OH-].CCC[N+](CCC)(CCC)CCC LPSKDVINWQNWFE-UHFFFAOYSA-M 0.000 description 1
- 238000001029 thermal curing Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- UCSBCWBHZLSFGC-UHFFFAOYSA-N tributoxysilane Chemical compound CCCCO[SiH](OCCCC)OCCCC UCSBCWBHZLSFGC-UHFFFAOYSA-N 0.000 description 1
- ZQJYXISBATZORI-UHFFFAOYSA-N tributyl(ethoxy)silane Chemical compound CCCC[Si](CCCC)(CCCC)OCC ZQJYXISBATZORI-UHFFFAOYSA-N 0.000 description 1
- 239000005052 trichlorosilane Substances 0.000 description 1
- DENFJSAFJTVPJR-UHFFFAOYSA-N triethoxy(ethyl)silane Chemical compound CCO[Si](CC)(OCC)OCC DENFJSAFJTVPJR-UHFFFAOYSA-N 0.000 description 1
- JCVQKRGIASEUKR-UHFFFAOYSA-N triethoxy(phenyl)silane Chemical compound CCO[Si](OCC)(OCC)C1=CC=CC=C1 JCVQKRGIASEUKR-UHFFFAOYSA-N 0.000 description 1
- NBXZNTLFQLUFES-UHFFFAOYSA-N triethoxy(propyl)silane Chemical compound CCC[Si](OCC)(OCC)OCC NBXZNTLFQLUFES-UHFFFAOYSA-N 0.000 description 1
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 description 1
- GRNRCQKEBXQLAA-UHFFFAOYSA-M triethyl(2-hydroxyethyl)azanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CCO GRNRCQKEBXQLAA-UHFFFAOYSA-M 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- HQYALQRYBUJWDH-UHFFFAOYSA-N trimethoxy(propyl)silane Chemical compound CCC[Si](OC)(OC)OC HQYALQRYBUJWDH-UHFFFAOYSA-N 0.000 description 1
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 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
- OZWKZRFXJPGDFM-UHFFFAOYSA-N tripropoxysilane Chemical compound CCCO[SiH](OCCC)OCCC OZWKZRFXJPGDFM-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea group Chemical group NC(=O)N XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/075—Silicon-containing compounds
- G03F7/0757—Macromolecular compounds containing Si-O, Si-C or Si-N bonds
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/045—Polysiloxanes containing less than 25 silicon atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups
- C08G77/18—Polysiloxanes containing silicon bound to oxygen-containing groups to alkoxy or aryloxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/80—Siloxanes having aromatic substituents, e.g. phenyl side groups
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/022—Quinonediazides
- G03F7/023—Macromolecular quinonediazides; Macromolecular additives, e.g. binders
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/075—Silicon-containing compounds
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/20—Exposure; Apparatus therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
- H01L21/02126—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material containing Si, O, and at least one of H, N, C, F, or other non-metal elements, e.g. SiOC, SiOC:H or SiONC
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02205—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition
- H01L21/02208—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si
- H01L21/02214—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si the compound comprising silicon and oxygen
- H01L21/02216—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si the compound comprising silicon and oxygen the compound being a molecule comprising at least one silicon-oxygen bond and the compound having hydrogen or an organic group attached to the silicon or oxygen, e.g. a siloxane
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02282—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process liquid deposition, e.g. spin-coating, sol-gel techniques, spray coating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
Definitions
- the present invention relates to a photosensitive composition containing an alkali-soluble siloxane resin having silanol groups or alkoxysilyl groups.
- Siloxane resin is known as a material having high heat resistance, high hardness, high insulation, and high transparency, and is used in various applications.
- a cured film obtained by firing a composition containing a siloxane resin is durable, low dielectric, excellent in insulation, and has high hardness. It is used as an insulating film, a planarizing film, a protective film, a semiconductor sealing material, and the like in semiconductor elements, liquid crystal display elements, and the like.
- silanol groups exist in the resin. Utilizing the property that this silanol group contributes to alkali solubility, a number of photosensitive siloxane resin compositions that can be developed with 2.38% tetramethylammonium aqueous solution, which is generally used in the field of electronic materials, have been reported. (Patent Document 1).
- Patent Document 2 In order to improve heat reflow resistance while maintaining alkali solubility, a method of combining a low molecular weight alkali-soluble siloxane resin with a high molecular weight alkali-insoluble resin has also been studied. Although the resistance to heat reflow increases as the difference increases (Patent Document 2), it has been found by the inventor's research that there remains a problem to be solved that the occurrence of scum becomes significant. There are other methods such as addition of a curing agent (Patent Document 3) and introduction of a silica (SiO 2 ) unit into a resin (Patent Document 4). However, the method according to Patent Document 3 causes frequent scum, deterioration of stability over time, and sensitivity. In the method according to Patent Document 4, when the silica unit exceeds 30 mol% of the whole polymer, there is a tendency for frequent occurrence of scum and a remarkable decrease in stability over time, and there is room for improvement.
- Patent Document 5 polyfunctional polysiloxanes having no alkoxy groups or hydroxyl groups may be used, but there are drawbacks that the curability is poor and the transparency is lowered.
- the object of the present invention is to provide a photosensitive resin comprising an alkali-soluble siloxane resin that does not have the above-mentioned conventional problems, that is, maintains storage stability, reduces scum, improves heat reflow resistance, and improves sensitivity. Providing a sex composition.
- the photosensitive siloxane resin composition according to the present invention is: A siloxane resin having a silanol group or an alkoxysilyl group; Crown ether, A photosensitizer, It comprises an organic solvent.
- the pattern forming method according to the present invention includes: The photosensitive siloxane resin composition is applied onto a substrate to form a film, Exposing the coating to an image; Treated with aqueous alkaline solution, It is characterized by comprising firing at 150 to 450 ° C. in an inert gas or air.
- siliceous film according to the present invention is manufactured by the above-described method.
- the photosensitive siloxane resin composition according to the present invention has drastically improved alkali solubility and is excellent in stability over time and sensitivity. Further, since the crown ether used itself does not easily remain in the film after firing, a siliceous film having high transparency can be formed. The siliceous film can also achieve high insulation, low dielectric constant, and high heat resistance.
- silanol group-containing alkali-soluble siloxane resin of the present invention will be described in more detail as follows.
- siloxane resin having silanol group or alkoxysilyl group The siloxane resin used in the present invention has a silanol group or an alkoxysilyl group as a functional group.
- the silanol group and the alkoxysilyl group mean a hydroxyl group and an alkoxy group directly bonded to silicon forming a siloxane skeleton.
- Such a siloxane resin is soluble in alkali by having a silanol group or an alkoxysilyl group, and can be easily processed with an alkaline developer when used as a photosensitive resin composition.
- These functional groups also contribute as reactive groups when the photosensitive composition undergoes a curing reaction.
- the siloxane resin used in the present invention may be any siloxane resin containing a silanol group and / or an alkoxysilyl group, and its structure is not particularly limited.
- the skeleton structure of the siloxane resin includes a silicone skeleton (2 oxygen atoms bonded to silicon atoms) and a silsesquioxane skeleton (the number of oxygen atoms bonded to silicon atoms) depending on the number of oxygen bonded to silicon atoms. 3) and a silica skeleton (the number of oxygen atoms bonded to silicon atoms is 4).
- the skeleton structure of these siloxane resins may be a plurality of combinations, and the siloxane resin may be a mixture of resins having the respective structures.
- the ratio of a silicone structure is 10 mol% or less of the whole siloxane resin.
- the ratio of the silica structure is preferably 20 mol% or less of the whole siloxane resin, and more preferably 10 mol% or less. .
- the siloxane resin used in the present invention has a silanol group or an alkoxysilane group. As described above, these functional groups are considered to contribute to the solubility of the resin in alkali and the curing reaction, and also affect the storage stability.
- the siloxane resin contains at least a silanol group and an alkoxysilane group, the effect of the present invention can be obtained, but the number is considered to depend on the molecular weight of the siloxane resin. For this reason, it is preferable that the molecular weight of the siloxane resin is in a specific range described later in order to have an appropriate number of silanol groups or alkoxysilane groups.
- reactive groups other than silanol groups or alkoxysilane groups such as carboxyl groups, sulfonyl groups, amino groups, etc. may be included in the siloxane resin as long as the effects of the present invention are not impaired. Since generally tends to deteriorate the storage stability of the photosensitive composition, it is preferable that the amount be small. Specifically, it is preferably 10 mol% or less, particularly preferably not contained at all, with respect to the total number of hydrogen or substituents bonded to the silicon atom.
- the substituent means a substituent that does not contain a Si—O bond constituting the siloxane structure, specifically, an alkyl group, an alkenyl group, an allyl group, a hydroxyalkyl group, or the like.
- a typical siloxane resin that can be used in the present invention is obtained by, for example, hydrolyzing one or more alkoxysilanes represented by the following general formula (A) in an organic solvent.
- R 1 is a hydrogen atom, an optionally substituted alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, a hydrogen atom on the ⁇ -position carbon atom having 15 or less carbon atoms.
- R 2 represents an optionally substituted alkyl group having 1 to 6 carbon atoms.
- A is an integer of 0 to 3.
- substituent R 1 examples include (i) methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, t-butyl group, n-hexyl group, n-decyl group, trifluoromethyl group, 2,2,2-trifluoroethyl group, 3,3,3-trifluoropropyl group, 3-hydroxypropyl group, 3-glycidoxypropyl group, 2- (3 , 4-epoxycyclohexyl) ethyl group, 3-aminopropyl group, 3-mercaptopropyl group, 3-isocyanatopropyl group, 4-hydroxy-5- (p-hydroxyphenylcarbonyloxy) pentyl group, etc.
- alkyl group (ii) a substituted or unsubstituted cycloalkyl group such as a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, (i ii) substituted or unsubstituted aralkyl groups such as phenylisopropyl group, (iv) substituted or unsubstituted aryl groups such as phenyl group, tolyl group, p-hydroxyphenyl group, naphthyl group, (v) vinyl group, allyl group , Substituted or unsubstituted alkenyl groups such as 3-acryloxypropyl group and 3-methacryloxypropyl group.
- a substituted or unsubstituted cycloalkyl group such as a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cycl
- substituent R 2 include the same groups as those exemplified as the alkyl group which may have a substituent of the substituent R 1 , and have 1 to 4 carbon atoms having no substituent. Are preferred.
- alkoxysilane compound represented by the general formula (A) include the following compounds.
- monoaryltrialkoxysilane monophenyltrimethoxysilane, monophenyltriethoxysilane, mononaphthyltrimethoxysilane, etc.
- trialkoxysilane trimethoxysilane, Triethoxysilane, tripropoxysilane, tributoxysilane, etc.
- Dialkyl dialkoxysilane dimethyldimethoxysilane, dimethyldiethoxysilane, diethyldi Toxisilane, diethyldiethoxysilane, dipropyldimethoxysilane, dipropyldiethoxysilane, etc.
- Diphenyl dialkoxysilane diphenyldimethoxysilane, diphenyldiethoxysilane, etc.
- Alkylphenyldialkoxysilane methylphenyldimethoxysilane, methyl Phenyldiethoxysilane, ethylphenyldimethoxysilane, ethylphenyldiethoxysilane, propylphenyldimethoxysilane, propylphenyldiethoxysilane, etc.
- Trialkylalkoxysilane trimethylmethoxysilane, tri-n-butylethoxysilane, etc.
- preferred compounds are tetramethoxysilane, tetraethoxysilane, monomethyltrimethoxysilane, monomethyltriethoxysilane, mononaphthyltrimethoxysilane, and monophenyltrimethoxysilane.
- the siloxane resin containing a silanol group or an alkoxysilyl group used in the present invention is preferably a siloxane resin having a functional group consisting only of a silanol group or consisting of a silanol group and an alkoxysilyl group. That is, the unreacted alkoxysilyl group derived from the raw material may be contained in the siloxane resin.
- a silanol group-containing siloxane resin in which such a functional group is composed only of a silanol group or a silanol group and an alkoxysilyl group is produced using one or more of the alkoxysilanes represented by the general formula (A). can do.
- the silanol group or alkoxysilyl group-containing siloxane resin used in the present invention is one or more of alkoxysilanes that do not contain a reactive group such as a hydroxyl group in R 1 and R 2 as an alkoxysilane if necessary.
- a siloxane resin obtained by hydrolyzing and condensing a mixture of one or two or more alkoxysilanes having a reactive group such as a hydroxyl group in R 1 and / or R 2 may be used.
- the raw material alkoxysilane it is preferable to use an alkoxysilane in which a is 0 or 1 in the general formula (A). At this time, if necessary, an alkoxysilane having a 2 or 3 is used. Further, it may be used.
- silanol group- or alkoxysilyl group-containing siloxane resins include those obtained by hydrolyzing one or more halosilanes represented by the following general formula (B) in an organic solvent.
- R 1 a SiX 4-a
- X represents a halogen atom.
- R ⁇ 1 > and a in general formula (B) the same thing as what was mentioned by the said general formula (A) is preferable.
- X a chlorine atom, a bromine atom, or an iodine atom is mentioned.
- a silanol group-containing siloxane resin can be produced in the same manner as in the case of using an alkoxysilane as represented by the general formula (A).
- a part of chlorosilyl group undergoes hydrolysis / condensation reaction to form a Si—O—Si bond, and the rest is hydrolyzed, whereby the chlorosilyl group becomes a silanol group.
- the content of silanol groups in the siloxane resin to be formed can be adjusted by controlling the type, amount, reaction conditions, and the like of the halosilane compound used. When only a halosilane compound is used as a raw material, all of the reactive groups of the obtained silanol group-containing siloxane resin are silanol groups.
- a siloxane resin can be produced by combining the compound of the general formula (A) and the compound of the general formula (B).
- the hydrolytic condensation reaction of a silane compound to obtain a siloxane resin is usually performed in an organic solvent.
- the solvent component of the alkoxysilane solution is not particularly limited as long as it is an organic solvent capable of dissolving or dispersing the formed resin.
- organic solvents can be used as appropriate, for example, monohydric alcohols such as methyl alcohol, ethyl alcohol, propyl alcohol, butyl alcohol isobutyl alcohol, and imamyl alcohol; ethylene glycol, diethylene glycol, propylene glycol, glycerin, Polyhydric alcohols such as trimethylolpropane and hexanetriol; ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol mono Butyl ether, propylene glycol Monoethers of polyhydric alcohols such as monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, 3-methyl-3-methoxy
- the molecular weight of the siloxane resin is appropriately selected according to the concentration of the composition and the content of the functional group contained in the siloxane resin. However, in order to suppress scum after developing a film containing the photosensitive composition and to increase sensitivity, it is preferable that the molecular weight is low. Specifically, when the photosensitive composition is a positive photosensitive composition, the solubility of the exposed portion is increased. Therefore, the lower the molecular weight of the siloxane resin is, the higher the sensitivity of the photosensitive composition is. Moreover, when the photosensitive composition is a negative photosensitive composition, the higher the solubility of the unexposed part, the higher the sensitivity. Therefore, the lower the molecular weight of the siloxane resin is preferable.
- the siloxane resin preferably has a weight average molecular weight (Mw) of 400 to 5,000, more preferably 600 to 3,000.
- Mw weight average molecular weight
- the weight average molecular weight refers to a styrene equivalent weight average molecular weight by gel permeation chromatography.
- the photosensitive composition according to the present invention is characterized by containing a crown ether.
- a crown ether Various crown ethers are generally known. In the present invention, any crown ether can be selected according to the purpose. However, in the present invention, the crown ether is preferably composed only of carbon, hydrogen, and oxygen. Care should be taken because the effects of the present invention may be impaired if the crown ether contains other elements. In particular, it is preferable that the crown ether does not contain an amino group or a quaternary ammonium group.
- crown ethers containing these groups are used, since they act as a catalyst for advancing the polymerization reaction of the silanol group-containing siloxane resin, and as a result, the photosensitive composition tends to thicken.
- nitrogen-containing groups other than amino groups or quaternary ammonium groups have little problem of thickening the composition, but coloring may occur in the formed film, so use crown ethers containing nitrogen-containing groups. Care must be taken when doing so. For example, even if an azo group, a diazo group, or an oxime group is contained in the crown ether, there is no problem because coloring is slight.
- an amide group, an imino group, an imide group, or a urea group is contained in the crown ether, the formed film is colored. Therefore, it is preferable to avoid use in applications where the transparency of the film is important.
- the crown ether used in the present invention may contain a hydroxyl group, a carboxy group, an aromatic group or the like as a substituent.
- care must be taken because if the hydrogen is bonded to the ⁇ -position of the aromatic ring, the fired film tends to be colored.
- crown ethers include 21-crown-7 ether, 18-crown-6-ether, 15-crown-5-ether, 12-crown-4-ether, dibenzo-21-crown-7-ether, Dibenzo-18-crown-6-ether, dibenzo-15-crown-5-ether, dibenzo-12-crown-4-ether, dicyclohexyl-21-crown-7-ether, dicyclohexyl-18-crown-6-ether, Dicyclohexyl-15-crown-5-ether, and dicyclohexyl-12-crown-4-ether. Of these, most preferably selected from 18-crown-6-ether and 15-crown-5-ether.
- crown ethers may contain impurities. However, if crown ethers containing impurities, particularly alkali metals, are used, the effect of the present invention may not be sufficiently exhibited. It is. It should be noted that the content of metal impurities allowed in the present invention is not uniquely determined because it varies depending on the use of the composition or the required semiconductor device, but is generally below the level allowed in the semiconductor field. It is preferable to make it.
- the photosensitive composition according to the present invention contains a photosensitizer. Depending on the type of the photosensitive agent, the photosensitive siloxane resin composition according to the present invention functions as either a positive photosensitive composition or a negative photosensitive composition.
- C1 Photosensitive agent for positive photosensitive composition When the photosensitive composition according to the present invention becomes soluble in an alkaline developer and can be developed by the action of the photosensitive agent, this photosensitive composition is It is a positive photosensitive composition.
- a diazonaphthoquinone derivative is preferable.
- the diazonaphthoquinone derivative is a compound in which naphthoquinone diazide sulfonic acid is ester-bonded to a compound having a phenolic hydroxyl group, and the structure is not particularly limited, but is preferably an ester compound with a compound having one or more phenolic hydroxyl groups. preferable.
- the naphthoquinone diazide sulfonic acid 4-naphthoquinone diazide sulfonic acid or 5-naphthoquinone diazide sulfonic acid can be used.
- 4-naphthoquinonediazide sulfonic acid ester compound has absorption in the i-line (wavelength 365 nm) region, it is suitable for i-line exposure. Further, the 5-naphthoquinonediazide sulfonic acid ester compound has absorption in a wide wavelength range and is therefore suitable for exposure in a wide wavelength range. It is preferable to select a 4-naphthoquinone diazide sulfonic acid ester compound or a 5-naphthoquinone diazide sulfonic acid ester compound depending on the wavelength to be exposed. A 4-naphthoquinone diazide sulfonic acid ester compound and a 5-naphthoquinone diazide sulfonic acid ester compound may be mixed and used.
- (C2) Photosensitive agent for negative photosensitive composition When the photosensitive composition according to the present invention becomes developable because the exposed portion becomes insoluble in an alkaline developer by the action of the photosensitive agent, this photosensitive composition is It is a negative photosensitive composition.
- preferable photosensitizers that act as described above are photoacid generators, photobase generators, or photopolymerization initiators.
- photoacid generator an arbitrary one can be appropriately selected from known photoacid generators in conventional chemically amplified resists.
- photoacid generators include naphthoquinone diazide compounds and onium salts.
- the naphthoquinone diazide compound include esters of 4-naphthoquinone diazide sulfonic acid and the above compound having a phenolic hydroxyl group.
- a photo-acid generator may be used independently and may be used in combination of 2 or more type.
- onium salts that are photoacid generators include iodonium salts, sulfonium salts, and phosnium salts.
- Preferred onium salts include diphenyliodonium triflate, diphenyliodonium pyrenesulfonate, triphenylsulfonium triflate, triphenylsulfonium naphthalenesulfonate, and the like.
- photobase generators preferably used in the present invention include orthonitrobenzyl carbamates, ⁇ , ⁇ -dimethyl-3,5-dimethoxybenzyl carbamates and the like.
- Orthonitrobenzyl carbamates include [[(2-nitrobenzyl) oxy] carbonyl] methylamine, [[(2-nitrobenzyl) oxy] carbonyl] propylamine, [[(2-nitrobenzyl) oxy] carbonyl.
- Examples of ⁇ , ⁇ -dimethyl-3,5-dimethoxybenzylcarbamate include [[( ⁇ , ⁇ -dimethyl-3,5-dimethoxybenzyl) oxy] carbonyl] methylamine, [[( ⁇ , ⁇ -dimethyl-3 , 5-dimethoxybenzyl) oxy] carbonyl] propylamine, [[( ⁇ , ⁇ -dimethyl-3,5-dimethoxybenzyl) oxy] carbonyl] butylamine, [[( ⁇ , ⁇ -dimethyl-3,5-dimethoxybenzyl ) Oxy] carbonyl] hexylamine, [[( ⁇ , ⁇ -dimethyl-3,5-dimethoxybenzyl) oxy] carbonyl] cyclohexylamine, [[( ⁇ , ⁇ -dimethyl-3,5-dimethoxybenzyl) oxy] carbonyl ] Aniline, [[( ⁇ , ⁇ -dimethyl-3
- any conventionally known photopolymerization initiator can be used.
- photopolymerization initiators include 2,2-dimethoxy-1,2-diphenylethane-1-one, 1-hydroxy-cyclohexyl-phenyl-ketone, 2-hydroxy-2-methyl-1 1-phenyl-propan-1-one, bis (2,4,6-trimethylbenzoyl) -phenylphosphine oxide, 2-benzyl-2-dimethylamine, 2-methyl-1- (4-methylthiophenyl) -2- And morpholinopropan-1-one and 2- (benzoyloxyimino) -1- [4- (phenylthio) phenyl] -1-octanone.
- These photopolymerization agents are commercially available, for example, as IRGACURE products (trade names) from BASF Japan. These photopolymerization agents can be used alone or in combination of two or more.
- (D) Solvent in the composition according to the present invention, an organic solvent is used in order to dissolve or disperse the siloxane resin, the crown ether, the photosensitizing agent, and additives used as necessary.
- the solvent used in the hydrolysis-condensation reaction of alkoxysilane may be used as it is as an organic solvent of the photosensitive composition, or another solvent may be further added thereto, or a siloxane resin obtained by the reaction may be used.
- a siloxane resin that is isolated from a solvent and does not contain a solvent may be dissolved or dispersed in a new solvent and used as a composition.
- ether ester systems such as propylene glycol monomethyl ether acetate (hereinafter sometimes referred to as PGMEA) are generally used, which is preferable.
- PGMEA propylene glycol monomethyl ether acetate
- 3-methyl-3-methoxybutanol, 3-methyl-3-methoxybutyl acetate and the like are also preferable solvents.
- the photosensitive composition according to the present invention may contain other additives as required.
- the additive that can be used include a surfactant, a curing agent, a thickener, a smoothing agent, and a quencher.
- the surfactant is used to improve the coating characteristics of the photosensitive composition, the wetting characteristics to the substrate, and the like.
- Nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, and the like are known as surfactants, which may impair the storage stability of the photosensitive composition.
- Nonionic surfactants with few polar groups are preferred.
- nonionic surfactants examples include polyoxyethylene alkyl ethers such as polyoxyethylene alkyl ethers such as polyoxyethylene lauryl ether, polyoxyethylene oleyl ether, and polyoxyethylene cetyl ether.
- polyoxyethylene fatty acid diesters polyoxyfatty acid monoesters, polyoxyethylene polyoxypropylene block polymers, acetylene alcohols, acetylene glycols, acetylene alcohol polyethoxylates, acetylene glycol polyethoxylates, etc., fluorine-containing interfaces Activators such as Florard (trade name, manufactured by Sumitomo 3M Limited), MegaFuck (trade name, manufactured by DIC Corporation), Freon (trade name, manufactured by Asahi Glass Co., Ltd.), or organosiloxane surfactants such as KP341 (trade name, manufactured by Shin-Etsu Chemical Co., Ltd.).
- Florard trade name, manufactured by Sumitomo 3M Limited
- MegaFuck trade name, manufactured by DIC Corporation
- Freon trade name, manufactured by Asahi Glass Co., Ltd.
- organosiloxane surfactants such as KP341 (trade name, manufactured by Shin-Etsu Chemical Co
- acetylene glycol examples include 3-methyl-1-butyn-3-ol, 3-methyl-1-pentyn-3-ol, 3,6-dimethyl-4-octyne-3,6-diol, 2,4, 7,9-tetramethyl-5-decyne-4,7-diol, 3,5-dimethyl-1-hexyne-3-ol, 2,5-dimethyl-3-hexyne-2,5-diol, 2,5 -Dimethyl-2,5-hexanediol and the like.
- the photosensitive composition according to the present invention is a negative photosensitive composition
- it can be added in combination with a quencher to prevent diffusion of acid or base to unexposed areas and form an accurate pattern width.
- a quencher for example, a nitrogen-containing organic compound is used
- the photobase generator for example, a sulfonium compound or a carboxyl group-containing compound is used.
- nitrogen-containing organic compound examples include heteroaromatics, aliphatic amines, amides, amino acids and the like, and heteroaromatics, specifically pyridine, pyrrole, imidazole or derivatives thereof are preferable.
- sulfonium compound examples include sulfonium compounds represented by the following general formula.
- R a R b R c S + OH ⁇ wherein R a , R b , and R c each independently represents an alkyl group, a cycloalkyl group that may have a substituent, or an aryl group that may have a substituent). .
- carboxyl group-containing compound examples include aliphatic carboxylic acids and amino acids, but acetic acid, propionic acid, linoleic acid, 4-aminobenzoic acid or derivatives thereof are particularly preferable.
- nitrogen-containing compounds and sulfonium compounds or carboxyl group-containing compounds may be used in appropriate combination.
- the photosensitive siloxane resin composition according to the present invention as described above has both high sensitivity and excellent heat reflow resistance, and also has excellent storage stability.
- the content of the siloxane resin contained in the photosensitive composition in the present invention is appropriately adjusted depending on the type of siloxane resin to be used and the use of the composition, and is not particularly limited. However, in order to obtain a sufficient coating film thickness, the content of the siloxane resin is preferably high, and from the viewpoint of the temporal stability of the photosensitive composition, it is preferably not more than a certain level. For this reason, the content of the siloxane resin contained in the photosensitive composition is preferably 1 to 60% by weight, based on the total weight of the composition, including the solvent described later, and is preferably 5 to 50% by weight. It is more preferable.
- the content of crown ether in the photosensitive composition according to the present invention is preferably 0.1 to 20% by weight, more preferably 0.5 to 10% by weight, based on the total weight of the composition. If it is less than 0.1% by weight, it may not exhibit a sufficient effect for improving the solubility in an alkali developer. If it exceeds 20%, the pattern formed from the photosensitive resin during development and / or rinsing tends to be easily peeled off from the substrate.
- the amount added is the esterification rate of naphthoquinone diazide sulfonic acid, or the physical properties of the polysiloxane used,
- the optimum amount varies depending on the required sensitivity and the dissolution contrast between the exposed and unexposed areas, but is preferably 3 to 20% by weight, more preferably 5 to 15% by weight, based on the total weight of the siloxane resin. .
- the addition amount of the diazonaphthoquinone derivative is less than 3% by weight, the dissolution contrast between the exposed part and the unexposed part is too low, and there may be no real photosensitivity. Further, in order to obtain a better dissolution contrast, 8% by weight or more is preferable.
- the addition amount of the diazonaphthoquinone derivative is more than 20% by weight, whitening of the coating film occurs due to poor compatibility between the polysiloxane and the quinonediazide compound, and coloring due to decomposition of the quinonediazide compound that occurs during thermal curing is remarkable. Therefore, the colorless transparency of the cured film may be lowered.
- the heat resistance of diazonaphthoquinone derivatives is inferior to that of polysiloxane, so if the amount added is increased, thermal decomposition causes deterioration of the electrical insulation of the cured product and outgassing, resulting in problems in subsequent processes. There is.
- the resistance to a photoresist stripping solution in which the cured product is mainly composed of monoethanolamine or the like may be lowered.
- the photodiazonaphthoquinone derivative may be used individually by 1 type, and 2 or more types may be mixed and used for it.
- the addition amount of the photoacid generator, photobase generator, or photopolymerization initiator is adjusted as necessary, but all are usually 0.1 to 20% by weight, preferably based on the total weight of the siloxane resin. 0.5 to 10% by weight. When the content is 0.1% by weight or more, pattern formation is sufficiently performed, and when the content is 20% by weight or less, a uniform solution can be obtained, so that the storage stability is improved.
- these photosensitive agents may be used individually by 1 type, and 2 or more types may be mixed and used for them.
- the content of the surfactant in the photosensitive composition according to the present invention is preferably 50 ppm to 100,000 ppm, more preferably 100 ppm to 50,000 ppm in the composition. If the amount is too small, the surface activity may be difficult to obtain, and the wettability may not be improved. If the amount is too large, foaming will be severe, foaming may occur in the coating machine, and handling may be difficult.
- the content of the solvent in the photosensitive composition according to the present invention is uniquely determined according to the content of each component described above, but is adjusted according to the viscosity of the composition, the film thickness of the film to be formed, and the like. If it is too low, it tends to be difficult to obtain a film having a sufficient thickness, and if it is too high, the aging stability of the composition tends to deteriorate.
- the content of metal impurities is preferably low as described above.
- the photosensitive composition according to the present invention is used for electronic materials such as semiconductors and liquid crystals, it is natural to use such a generated material.
- the content of metal impurities is high, sensitivity is increased. Care should be taken because the improvement effect may be reduced.
- the content of the metal impurity permitted in the present invention is not more than a level generally permitted in applications for electronic materials such as semiconductors and liquid crystals.
- the photosensitive composition according to the present invention enables excellent pattern formation with reduced generation of scum and the like.
- a pattern forming method using the above-described photosensitive composition will be described as follows.
- the above-described photosensitive composition is applied to a substrate to form a film.
- the substrate to be used is not particularly limited, but includes various substrates such as a silicon substrate, a glass plate, a metal plate, and a ceramic plate.
- the substrate of the present invention is preferable.
- the application method is not particularly limited, and various methods such as spin coating, dip coating, knife coating, roll coating, spray coating, and slit coating can be employed.
- the film thus formed on the substrate can be pre-baked as necessary to remove the organic solvent in the film.
- the pre-baking temperature is adjusted depending on the type of organic solvent contained in the composition. Generally, if the temperature is too low, the residual amount of the organic solvent increases, which may cause damage to the substrate transporting equipment, If the temperature is too high, drying may occur rapidly, resulting in uneven coating, or problems such as sublimation of the silanol group or alkoxysilyl group-containing siloxane resin may occur. For this reason, the pre-bake temperature is preferably 60 to 200 ° C., more preferably 80 to 150 ° C.
- the pre-baking can be performed using a heating device such as a hot plate or an oven, and the pre-baking time varies depending on the type of the organic solvent used and the pre-baking temperature, but is preferably 30 seconds to 10 minutes. Minutes are more preferred.
- the coating is imagewise exposed to form the desired pattern.
- the exposure method can be performed by any conventionally known method. Specifically, mask exposure, scanning exposure, and the like are used.
- the light source generally, g-line, h-line, i-line, broadband combining g-line, h-line, and i-line, KrF excimer laser, ArF excimer laser, electron beam, and the like are used.
- Alkaline aqueous solution treatment After exposure, the coating is subjected to an alkaline aqueous solution treatment and developed.
- the method of the alkaline aqueous solution treatment is not particularly limited, and can be performed by a general method such as immersion (dip) in an alkaline aqueous solution, paddle, shower, slit, cap coat, or spray.
- any alkaline compound contained in the alkaline aqueous solution can be used, but an organic alkaline compound is preferably used.
- the organic alkaline compound include quaternary ammonium compounds, amino alcohols (alkanolamines), aqueous ammonia, alkylamines, and heterocyclic amines.
- the quaternary ammonium compound include tetramethylammonium hydroxide (tetramethylammonium hydroxide; hereinafter referred to as “TMAH”), tetraethylammonium hydroxide, tetrapropylammonium hydroxide, and trimethylethylammonium hydroxide.
- Trimethyl (2-hydroxyethyl) ammonium hydroxide (choline), triethyl (2-hydroxyethyl) ammonium hydroxide, tripropyl (21-hydroxyethyl) ammonium hydroxide, trimethyl (21-hydroxypropyl) ammonium hydroxide are preferred. It is mentioned as a thing. Of these, TMAH is particularly preferable.
- An aqueous solution containing an inorganic alkaline compound can be used in applications where there are no problems with electrical properties and semiconductor properties, such as hard coat films, but because the aqueous solution contains metal ions such as sodium and potassium, TFT It is not preferable to use in applications where electrical characteristics and semiconductor characteristics must be taken into consideration, such as interlayer insulating films and planarization films.
- the concentration of the alkaline aqueous solution used for the alkaline aqueous solution treatment depends on various factors such as the type of alkali used, the concentration, the type of silanol group or alkoxysilyl group-containing siloxane resin to be treated, and the film thickness of the coating. There is no particular limitation. Further, the higher the alkali concentration range, the higher the effect of crown ether tends to be. However, from the concentration of aqueous alkali solution generally used in the field of electronic materials, the alkali concentration range of the aqueous alkaline solution is generally 1% to 5%, preferably 1 .5 to 3%.
- the treatment time of the alkaline aqueous solution treatment is preferably about 15 seconds to 3 minutes. From the viewpoint of production efficiency, a short development time is preferred, and a long development time is preferred in order to reduce variation in development results.
- the processing temperature can be performed at room temperature.
- (E) Rinse treatment The film after development can be subsequently subjected to a rinse treatment.
- This rinsing process is performed in order to wash away the alkaline aqueous solution and the residue remaining on the developed coating surface with water. Therefore, any method may be used as long as the alkaline aqueous solution on the coating surface is washed away.
- an appropriate method known as a conventional rinsing method can be employed, such as immersing the film in water, flowing water over the surface of the film, or pouring water into a shower.
- the rinsing time is not particularly limited as long as the alkaline aqueous solution on the coating is removed.
- the firing temperature at the time of curing the coating can be arbitrarily selected as long as the coating is cured. However, if the firing temperature is too low, the reaction may not proceed sufficiently and may not be cured sufficiently. For this reason, it is preferable that a calcination temperature is 150 degreeC or more. However, by adding a curing agent as an additive, sufficient curing can be achieved even at around 150 ° C. Further, since the OH group has polarity, the dielectric constant tends to increase when the OH group remains. Therefore, when it is desired to keep the dielectric constant of the siliceous film low, it is more preferable to cure at a high temperature, specifically 200 ° C. or higher.
- a calcination temperature is 450 degrees C or less, and it is more preferable that it is 350 degrees C or less.
- the firing time is not particularly limited, but is preferably 15 minutes to 3 hours. If the firing time is too long, cracks are likely to occur in the coating, so care must be taken.
- atmosphere it can also be performed in inert gas atmosphere, such as nitrogen, helium, and argon, as needed.
- the heating device is not particularly limited, and for example, a hot plate, an oven, or the like can be used.
- the film formed in this way has little scum after development and maintains the excellent characteristics such as high transparency, high insulation and low dielectric constant, which are the characteristics of the film formed from siloxane resin. is there.
- the weight average molecular weight (Mw) was measured using HPLC (GPC system) manufactured by Shimadzu Corporation and two GPC columns (SuperMultipore HZ-N (trade name) manufactured by Tosoh Corporation) with a flow rate of 0. It was measured by gel permeation chromatography (GPC) using monodisperse polystyrene as a standard under the analysis conditions of 7 ml / min, elution solvent tetrahydrofuran, and column temperature of 40 ° C.
- Example 1 67.63 g of a solution containing the siloxane resin X produced in Production Example 1 and 0.14 g of a surfactant KF-54 (manufactured by Shin-Etsu Chemical Co., Ltd.), a naphthoquinone photosensitizer P represented by the following general formula: 0.14 g and 29.43 g of PGMEA as a solvent were added and dissolved by stirring, thereby preparing a 30% solution.
- a surfactant KF-54 manufactured by Shin-Etsu Chemical Co., Ltd.
- a naphthoquinone photosensitizer P represented by the following general formula: 0.14 g and 29.43 g of PGMEA as a solvent were added and dissolved by stirring, thereby preparing a 30% solution.
- This solution was filtered under pressure of 0.05 Mpa with a filter (47 mm ⁇ , PTFE, filtration accuracy 0.1 ⁇ m) manufactured by Advantech Toyo Co., Ltd., and received in a clean polyethylene container “AC100-H” manufactured by Aicero Chemical Co., Ltd. Was prepared.
- Examples 2 to 6 and Comparative Examples 1 to 3 The photosensitive composition which changed the composition of the composition as shown in Table 1 with respect to Example 1 was prepared. In Comparative Example 3, nitrobenzylsiloxycarbamate was added as a curing agent.
- the formed line and space pattern was exposed to 500 mJ / cm 2 on the entire surface by contact aligner PLA-501 (trade name, manufactured by Canon Inc.), and then 1 at 250 ° C. in a nitrogen atmosphere. Time baking hardening was performed. The fired pattern was cut in a direction perpendicular to the surface, and the cross section was observed using a thermal field emission scanning electron microscope JSM-7001F (trade name, manufactured by JEOL Ltd.) and contacted with the substrate surface. The resistance to thermal reflow was evaluated by measuring the corners. In the case of a positive photosensitive composition, it can be said that the greater the contact angle, the better the resistance to thermal reflow. Further, in the same manner as in the evaluation of to thermal reflow resistance by changing the exposure amount for the entire surface exposure, L / S ratio of the pattern is 1: 1 and comprising exposure amount was E 0.
- the prepared photosensitive composition was evaluated for storage stability. With respect to the storage stability, the photosensitive composition was allowed to stand at room temperature for one month, and the one whose kinematic viscosity increased by 5% or more from the initial value was poor, and the one with less than 5% was considered good.
- the kinematic viscosity was measured with an automatic viscosity measuring device VMC-252 (trade name) manufactured by Rouai Co., Ltd.
- the ultraviolet-visible absorption spectrum of the obtained cured film was measured using a spectrophotometer MultiSpec-1500 (trade name, manufactured by Shimadzu Corporation), and the transmittance at a wavelength of 400 nm was determined.
- each photosensitive composition having a relative dielectric constant was applied to a silicon wafer by a spin coating method to a dry film thickness of 0.5 ⁇ m. Cured for 1 hour at temperature. The obtained cured film was subjected to CV measurement with a mercury probe type capacitance measuring device (manufactured by Solid State Instrument), and the dielectric constant was also determined from the obtained saturated capacitance. The obtained results were as shown in Table 1.
- Example 7 and Comparative Example 4 Using Irgacure OXE02 (trade name, manufactured by BASF Japan Ltd.) as a photosensitizer, compositions as shown in Table 2 were prepared and evaluated in the same manner as in Example 1. The obtained results were as shown in Table 2.
- the photosensitive composition of these examples is a negative photosensitive composition, and it can be said that the larger the contact angle, the better the resistance to thermal reflow.
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Abstract
Description
シラノール基またはアルコキシシリル基を有するシロキサン樹脂と、
クラウンエーテルと、
感光剤と、
有機溶剤と
を含んでなることを特徴とするものである。
前記の感光性シロキサン樹脂組成物を基材上に塗布して被膜を形成させ、
前記被膜を像用露光し、
アルカリ水溶液で処理し、
不活性ガスまたは大気中において150~450℃で焼成する
ことを含んでなることを特徴とするものである。
本発明に用いられる感光性シロキサン樹脂組成物は、(a)シラノール基またはアルコキシシリル基を有するシロキサン樹脂、(b)クラウンエーテル(c)感光剤(d)有機溶剤、(e)必要に応じ用いられる添加剤からなる。
本発明において用いられるシロキサン樹脂は、官能性基としてシラノール基またはアルコキシシリル基を有するものである。本発明において、シラノール基およびアルコキシシリル基とはシロキサン骨格を形成するケイ素に直接結合した水酸基およびアルコキシ基を意味する。このようなシロキサン樹脂は、シラノール基またはアルコキシシリル基を有することによってアルカリに可溶なものであり、感光性樹脂組成物として使用した場合には、アルカリ性現像液によって容易に処理することができる。また、これらの官能性基は、感光性組成物を硬化反応させる場合には反応性基としても寄与する。
(R1)aSi(OR2)4-a (A)
(ロ)モノアルキルトリアルコキシシラン:モノメチルトリメトキシシラン、モノメチルトリエトキシシラン、モノエチルトリメトキシシラン、モノエチルトリエトキシシラン、モノプロピルトリメトキシシラン、モノプロピルトリエトキシシラン等
(ハ)モノアリールトリアルコキシシラン:モノフェニルトリメトキシシラン、モノフェニルトリエトキシシラン、モノナフチルトリメトキシシラン等
(ニ)トリアルコキシシラン:トリメトキシシラン、トリエトキシシラン、トリプロポキシシラン、トリブトキシシラン等
(ホ)ジアルキルジアルコキシシラン:ジメチルジメトキシシラン、ジメチルジエトキシシラン、ジエチルジメトキシシラン、ジエチルジエトキシシラン、ジプロピルジメトキシシラン、ジプロピルジエトキシシラン等
(ヘ)ジフェニルジアルコキシシラン:ジフェニルジメトキシシラン、ジフェニルジエトキシシラン等
(ト)アルキルフェニルジアルコキシシラン:メチルフェニルジメトキシシラン、メチルフェニルジエトキシシラン、エチルフェニルジメトキシシラン、エチルフェニルジエトキシシラン、プロピルフェニルジメトキシシラン、プロピルフェニルジエトキシシラン等
(チ)トリアルキルアルコキシシシラン:トリメチルメトキシシラン、トリn-ブチルエトキシシラン等
(R1)aSiX4-a (B)
式中、R1およびaは前記した通りであり、
Xはハロゲン原子を表す。
本発明による感光性組成物は、クラウンエーテルを含むことを一つの特徴としている。クラウンエーテルは、一般的に種々のものが知られているが、本発明においてはこれらから目的に応じて任意のものを選択することができる。しかしながら、本発明においては、クラウンエーテルは炭素、水素、酸素だけで構成されるものであることが好ましい。クラウンエーテルがこれ以外の元素を含むと本願発明の効果が損なわれることがあるので注意が必要である。特に、クラウンエーテルがアミノ基または4級アンモニウム基を含まないことが好ましい。これらの基を含むクラウンエーテルを用いると、それがシラノール基含有シロキサン樹脂の重合反応を進行させる触媒として作用し、その結果、感光性組成物が増粘する傾向にあるので注意が必要である。また、アミノ基または4級アンモニウム基以外の窒素含有基は、組成物の増粘の問題は小さいが、形成される被膜に着色が発生することがあるので、窒素含有基を含むクラウンエーテルを使用する場合には注意が必要である。例えば、アゾ基、ジアゾ基、またはオキシム基がクラウンエーテルに含まれても着色はわずかであるので問題がない。一方、アミド基、イミノ基、イミド基、または尿素基がクラウンエーテルに含まれる場合、形成される被膜に着色が起こるため、被膜の透明性が重視される用途においては使用を避けることが好ましい。
また、本発明による感光性組成物は、感光剤を含んでいる。この感光剤の種類により、本発明による感光性シロキサン樹脂組成物はポジ型感光性組成物またはネガ型感光性組成物のいずれかとして機能する。
(c1)ポジ型感光性組成物用感光剤
本発明による感光性組成物が感光剤の作用によって、露光部がアルカリ現像液に可溶となって現像可能となる場合、この感光性組成物はポジ型感光性組成物である。このような作用をする感光剤のうち好ましいものは、ジアゾナフトキノン誘導体である。ジアゾナフトキノン誘導体は、フェノール性水酸基を有する化合物にナフトキノンジアジドスルホン酸がエステル結合した化合物であり、特に構造について制限されないが、好ましくはフェノール性水酸基を1つ以上有する化合物とのエステル化合物であることが好ましい。ナフトキノンジアジドスルホン酸としては、4-ナフトキノンジアジドスルホン酸、あるいは5-ナフトキノンジアジドスルホン酸を用いることができる。4-ナフトキノンジアジドスルホン酸エステル化合物はi線(波長365nm)領域に吸収を持つため、i線露光に適している。また、5-ナフトキノンジアジドスルホン酸エステル化合物は広範囲の波長領域に吸収が存在するため、広範囲の波長での露光に適している。露光する波長によって4-ナフトキノンジアジドスルホン酸エステル化合物、5-ナフトキノンジアジドスルホン酸エステル化合物を選択することが好ましい。4-ナフトキノンジアジドスルホン酸エステル化合物と5-ナフトキノンジアジドスルホン酸エステル化合物を混合して用いることもできる。
本発明による感光性組成物が感光剤の作用によって、露光部がアルカリ現像液に難溶となって現像可能となる場合、この感光性組成物はネガ型感光性組成物である。このような作用をする感光剤のうち好ましいものの例は光酸発生剤、光塩基発生剤、または光重合開始剤である。
本発明による組成物には、シロキサン樹脂、クラウンエーテル、感光剤、および必要に応じて用いられる添加剤を溶解あるいは分散させるために有機溶剤が用いられる。また、アルコキシシランの加水分解縮合反応の際の溶剤を、そのまま感光性組成物の有機溶剤として用いてもよいし、これに更に他の溶剤を加えてもよいし、反応で得られるシロキサン樹脂を溶剤から単離し、溶剤を含まないシロキサン樹脂を新たな溶剤に溶解あるいは分散するなどして組成物として用いてもよい。具体的には、前述の公知の有機溶剤を使用できるが半導体や液晶分野においてはプロピレングリコールモノメチルエーテルアセテート(以下、PGMEAということがある)などのエーテルエステル系が一般的に使用されているので好ましい。また、3-メチル-3-メトキシブタノール、3-メチル-3-メトキシブチルアセテートなども好ましい溶剤として挙げられる。
本発明による感光性組成物は、必要に応じてその他の添加剤を含んでもよい。用いることができる添加剤としては、例えば、界面活性剤、硬化剤、増粘剤、平滑剤、クエンチャーなどが挙げられる。界面活性剤は、感光性組成物の塗布特性、基材への濡れ特性などを改善するために用いられる。界面活性剤としては、ノニオン系界面活性剤、アニオン系界面活性剤、カチオン系界面活性剤、両性界面活性剤などが知られているが、感光性組成物の保存安定性を損なう可能性のある極性基が少ない、ノニオン系界面活性剤が好ましい。
RaRbRcS+ OH-
(式中、Ra、Rb、及び、Rcは、それぞれ独立に、アルキル基、置換基を有してもよいシクロアルキル基、又は、置換基を有していてもよいアリール基を示す。)
本発明による感光性組成物は、スカムの発生などが低減された、優れたパターン形成を可能とするものである。前記した感光性組成物を利用したパターン形成方法を説明すると以下のとおりである。
まず、前記した感光性組成物は、基材に塗布され、被膜が形成される。用いられる基材としては、特に限定されるものではないが、シリコン基板、ガラス板、金属板、セラミックス板等の各種基板が挙げられ、特に、絶縁膜を必要とする液晶ディスプレーのTFT表面等は、本発明の基板として好ましいものである。塗布方法は、特に限定されず、例えばスピンコート法、ディップコート法、ナイフコート法、ロールコート法、スプレーコート法、スリットコート法等の各種の方法を採用することができる。
こうして基板上に形成された被膜を、必要に応じてプリベークに付して、被膜中の有機溶剤を除去することができる。プリベーク温度は、組成物に含まれる有機溶剤の種類によって調整されるが、一般に温度が低すぎると、有機溶剤の残留分が多くなり、基板運搬機器などをおかす原因となる場合があり、一方、温度が高すぎると急激に乾燥され、塗布ムラが生じてしまう、またはシラノール基またはアルコキシシリル基含有シロキサン樹脂が昇華するなどの問題が起こる場合がある。このため、プリベーク温度は60~200℃が好ましく、80~150℃が更に好ましい。プリベークは、例えばホットプレート、オーブンなどの加熱装置を用いて行うことができ、プリベークの時間は、使用した有機溶剤の種類とプリベークの温度により異なるが、30秒~10分が好ましく、1~5分が更に好ましい。
引き続いて、被膜は所望のパターンが形成されるように像様に露光される。露光の方法は従来知られている任意の方法により行うことができる。具体的にはマスク露光、走査露光など、が用いられる。また、光源には、一般的にはg線、h線、i線、およびg線とh線とi線とを組み合わせたブロードバンド、KrFエキシマーレーザー、ArFエキシマーレーザー、電子線などが用いられる。
露光後、被膜はアルカリ水溶液処理に付されて現像される。アルカリ水溶液処理の方法は、特に限定されず、アルカリ水溶液への浸漬(ディップ)、パドル、シャワー、スリット、キャップコート、スプレーといった一般的方法で行うことができる。
現像後の被膜を、引き続きリンス処理に付すことができる。このリンス処理は現像処理された被膜面に残留するアルカリ水溶液や残留物を水で洗い流すために行われる。したがって、被膜面のアルカリ水溶液等が洗い流されればいずれの方法によってもよい。例えば、被膜を水中に浸漬する、あるいは被膜面に水を流す、水をシャワー状に掛けるなど、従来リンス方法として知られた適宜の方法を採用することができる。リンス処理時間は、被膜上のアルカリ水溶液が除去される時間であればよく特に限定されるものではないが、例えば浸漬による場合では、30秒~5分程度、流水による場合では15秒~3分程度行えばよい。また、リンス処理で用いられる水としては、電気特性や半導体特性を必要とする用途であれば、イオン交換水または純水が好ましいものである。なお、浸漬によるリンスにおいては、浴を変えて複数回浸漬リンスを行ってもよい。
被膜硬化時の焼成温度は、被膜が硬化する温度であれば任意に選択できる。しかし、焼成温度が低すぎると反応が十分に進行せず十分に硬化しないことがある。このために焼成温度は150℃以上であることが好ましい。しかしながら、添加剤として硬化剤を添加することで150℃前後であっても十分に硬化させることができる。また、OH基は極性を有するため、OH基が残存すると誘電率が高くなる傾向にある。したがって、シリカ質膜の誘電率を低く維持したい場合は高い温度、具体的には200℃以上で硬化させることがより好ましい。また、反対に焼成温度が高すぎると、熱エネルギーコストが増大してしまうため好ましくない。このため、焼成温度は450℃以下であることが好ましく、350℃以下であることがより好ましい。また、焼成時間は特に限定されないが、15分~3時間とされることが好ましい。焼成時間が長すぎると被膜にクラックが発生しやすくなるので注意が必要である。また、焼成処理は大気中で行うことが一般的であるが、必要に応じて窒素、ヘリウム、アルゴン等の不活性ガス雰囲気下で行うこともできる。また、加熱装置も特に限定されず、例えばホットプレート、オーブンなどを用いることができる。
メチルトリメトキシシラン47.6g(0.35モル)、フェニルトリメトキシシラン29.7g(0.15モル)、3,3´,4,4´-ベンゾフェノンテトラカルボン酸2無水物4.83g(0.015モル)を3-メチル-3-メトキシブタノ-ル200gに溶解し、30℃で撹拌しながら、34.2gの蒸留水を加え、1時間加熱撹拌し、加水分解・縮合を行なった。その後、水で5回以上洗浄し、酢酸エチル油層を回収した。次に、その酢酸エチル油層を濃縮し、PGMEAに置換し、メチルフェニルシルセスキオキサン縮重合物40%溶液を得た。
メチルトリメトキシシラン47.6g(0.35モル)、フェニルトリメトキシシラン29.7g(0.15モル)、3,3´,4,4´-ベンゾフェノンテトラカルボン酸2無水物4.83g(0.015モル)を3-メチル-3-メトキシブタノ-ル200gに溶解し、40℃で撹拌しながら、34.2gの蒸留水を加え、1時間加熱撹拌し、加水分解・縮合を行なった。その後、水で5回以上洗浄し、酢酸エチル油層を回収した。次に、その酢酸エチル油層を濃縮し、PGMEAに置換し、メチルフェニルシルセスキオキサン縮重合物40%溶液を得た。
製造例1で製造されたシロキサン樹脂Xを含む溶液を67.63g、界面活性剤KF-54(信越化学工業株式会社製)を0.14g、下記一般式で表されるナフトキノン感光剤P:
実施例1に対して、組成物の組成を表1に示す通りに変更した感光性組成物を調製した。なお、比較例3においては硬化剤としてニトロベンジルシルロヘキシルカルバメートを添加した。
現像後のパターン表面を光学顕微鏡(オリンパス株式会社製)を用いて100倍で観察した。
形成されたラインアンドスペースパターンに対して、コンタクトアライナーPLA-501(商品名、キャノン株式会社製)により500mJ/cm2全面露光し、ついで窒素雰囲気下250℃で1時間焼成硬化を行った。焼成後のパターンを表面に対して垂直方向に切断し、その断面をサーマル電界放射型走査電子顕微鏡JSM-7001F(商品名、日本電子株式会社製)を用いて観察し、基材表面との接触角を測定することにより対熱リフロー耐性を評価した。ポジ型感光性組成物の場合にはこの接触角が大きいほど対熱リフロー耐性が優れているということができる。また、対熱リフロー耐性の評価と同様にして全面露光時の露光量を変化させ、パターンのL/S比が1:1となる露光量をE0とした。
調製した感光性組成物について、保存安定性を評価した。保存安定性は、感光性組成物を一か月室温放置し、動粘度が初期値より5%以上増大したものを不良、5%未満のものを良好とした。動粘度は株式会社離合社製自動粘度測定装置VMC-252(商品名)により測定した。
得られた硬化膜の紫外可視吸収スペクトルを分光光度計MultiSpec-1500(商品名、島津製作所株式会社製)を用いて測定し、波長400nmでの透過率を求めた。
それぞれの感光性組成物を、スピンコーターMS-A100(商品名、ミカサ株式会社製)を用い、スピンコート法にてシリコンウエハーに乾燥膜厚0.5μmに塗布し、それぞれ250℃の温度で1時間硬化させた。得られた硬化膜を水銀プローブ方式のキャパシタンス測定装置(Solid State Instrument社製)にて、C-V測定を実施し、得られた飽和キャパシタンスより誘電率も求めた。
得られた結果は表1に示す通りであった。
感光剤としてIrgacure OXE02(商品名、BASFジャパン株式会社製)を用いて、表2に示す通りの組成物を調製し、実施例1と同様に評価した。得られた結果は表2に示す通りであった。これらの例の感光性組成物はネガ型感光性組成物であり、対熱リフロー耐性は接触角が大きいほど優れているということができる。
Claims (10)
- シラノール基またはアルコキシシリル基を有するシロキサン樹脂と、
クラウンエーテルと、
感光剤と、
有機溶剤と
を含んでなることを特徴とする感光性シロキサン樹脂組成物。 - 前記クラウンエーテルが、アミノ基または4級アンモニウム基を含まないものである、請求項1に記載の感光性シロキサン樹脂組成物。
- 前記クラウンエーテルが、x-クラウン-y-エーテル(ここでx=12、15、18、または21、y=x/3)、ならびにこれらのベンゾ縮合物およびシクロヘキシル縮合物からなる群から選択される、請求項1または2に記載の感光性シロキサン樹脂組成物。
- 前記シロキサン樹脂が、シルセスキオキサン構造を有するものである、請求項1~3のいずれか1項に記載の感光性シロキサン樹脂組成物。
- 前記シロキサン樹脂の重量平均分子量が、400~5,000である、請求項1~4のいずれか1項に記載の感光性シロキサン樹脂組成物。
- 前記感光性シロキサン樹脂組成物がポジ型感光性組成物である、請求項1~5のいずれか1項に記載の感光性シロキサン樹脂組成物。
- 前記ポジ型感光性組成物が、フェノール性水酸基を有する化合物にナフトキノンジアジドスルホン酸がエステル結合した化合物を含んでなる、請求項6に記載の感光性シロキサン樹脂組成物。
- 前記感光性シロキサン樹脂組成物が光酸発生剤、光塩基発生剤、または光重合開始剤を含むネガ型感光性組成物である、請求項1~5のいずれか1項に記載の感光性シロキサン樹脂組成物。
- 請求項1~8のいずれか1項に記載の感光性シロキサン樹脂組成物を基材上に塗布して被膜を形成させ、
前記被膜を像用露光し、
アルカリ水溶液で処理し、
不活性ガスまたは大気中において150~450℃で焼成する
ことを含んでなることを特徴とするパターン形成方法。 - 請求項9に記載の方法で製造されたことを特徴とするシリカ質膜。
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TWI514081B (zh) | 2015-12-21 |
KR20140047052A (ko) | 2014-04-21 |
US20140335448A1 (en) | 2014-11-13 |
KR101772856B1 (ko) | 2017-08-30 |
JP2012242600A (ja) | 2012-12-10 |
TW201250391A (en) | 2012-12-16 |
CN103562793A (zh) | 2014-02-05 |
CN103562793B (zh) | 2017-11-28 |
US9091920B2 (en) | 2015-07-28 |
JP5726632B2 (ja) | 2015-06-03 |
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