JP6997801B2 - アンダーカットパターン形状を生成するためのネガ型レジスト配合物 - Google Patents
アンダーカットパターン形状を生成するためのネガ型レジスト配合物 Download PDFInfo
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- JP6997801B2 JP6997801B2 JP2019557834A JP2019557834A JP6997801B2 JP 6997801 B2 JP6997801 B2 JP 6997801B2 JP 2019557834 A JP2019557834 A JP 2019557834A JP 2019557834 A JP2019557834 A JP 2019557834A JP 6997801 B2 JP6997801 B2 JP 6997801B2
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- photoresist
- solid constituent
- photoresist composition
- quencher
- alkyl
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- 239000000203 mixture Substances 0.000 title claims description 190
- 229920002120 photoresistant polymer Polymers 0.000 title claims description 156
- 238000009472 formulation Methods 0.000 title description 52
- 239000007787 solid Substances 0.000 claims description 117
- 239000000470 constituent Substances 0.000 claims description 110
- 150000001412 amines Chemical class 0.000 claims description 67
- 239000000758 substrate Substances 0.000 claims description 54
- 150000001875 compounds Chemical class 0.000 claims description 53
- 238000009835 boiling Methods 0.000 claims description 52
- -1 carbonium ions Chemical class 0.000 claims description 47
- 125000001424 substituent group Chemical group 0.000 claims description 40
- 125000004953 trihalomethyl group Chemical group 0.000 claims description 39
- 125000000217 alkyl group Chemical group 0.000 claims description 38
- 125000003118 aryl group Chemical group 0.000 claims description 37
- 230000005855 radiation Effects 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 25
- 229920005989 resin Polymers 0.000 claims description 25
- 239000011347 resin Substances 0.000 claims description 25
- 229920000642 polymer Polymers 0.000 claims description 24
- 239000000460 chlorine Substances 0.000 claims description 21
- 238000001465 metallisation Methods 0.000 claims description 21
- 239000002253 acid Substances 0.000 claims description 20
- 229910052801 chlorine Inorganic materials 0.000 claims description 19
- 239000011230 binding agent Substances 0.000 claims description 18
- 229910052794 bromium Inorganic materials 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 229920003986 novolac Polymers 0.000 claims description 18
- 238000000576 coating method Methods 0.000 claims description 16
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 15
- 150000002390 heteroarenes Chemical class 0.000 claims description 15
- 239000002904 solvent Substances 0.000 claims description 15
- 229920000877 Melamine resin Polymers 0.000 claims description 13
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 13
- 239000003431 cross linking reagent Substances 0.000 claims description 13
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 13
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 12
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 claims description 11
- 238000010304 firing Methods 0.000 claims description 11
- 229910052739 hydrogen Inorganic materials 0.000 claims description 10
- 238000003384 imaging method Methods 0.000 claims description 10
- 206010073306 Exposure to radiation Diseases 0.000 claims description 9
- 239000001257 hydrogen Substances 0.000 claims description 9
- 238000004132 cross linking Methods 0.000 claims description 7
- 125000005843 halogen group Chemical group 0.000 claims description 7
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 7
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 7
- 125000003107 substituted aryl group Chemical group 0.000 claims description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 125000003342 alkenyl group Chemical group 0.000 claims description 5
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 5
- 238000010791 quenching Methods 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical group N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 229910052757 nitrogen Chemical group 0.000 claims description 4
- 229920005596 polymer binder Polymers 0.000 claims description 4
- 239000002491 polymer binding agent Substances 0.000 claims description 4
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- 125000005017 substituted alkenyl group Chemical group 0.000 claims description 4
- 125000006273 (C1-C3) alkyl group Chemical group 0.000 claims description 3
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 3
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 3
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 3
- 150000007974 melamines Chemical class 0.000 claims description 3
- 150000002916 oxazoles Chemical class 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 230000008021 deposition Effects 0.000 claims description 2
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- 150000003918 triazines Chemical class 0.000 claims description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims 1
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- 0 CN1C(*)N(*)CC1 Chemical compound CN1C(*)N(*)CC1 0.000 description 17
- 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 16
- RLSSMJSEOOYNOY-UHFFFAOYSA-N m-cresol Chemical compound CC1=CC=CC(O)=C1 RLSSMJSEOOYNOY-UHFFFAOYSA-N 0.000 description 16
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 238000001459 lithography Methods 0.000 description 13
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 12
- 125000003545 alkoxy group Chemical group 0.000 description 11
- 125000003709 fluoroalkyl group Chemical group 0.000 description 10
- 229940100630 metacresol Drugs 0.000 description 10
- QWVGKYWNOKOFNN-UHFFFAOYSA-N o-cresol Chemical compound CC1=CC=CC=C1O QWVGKYWNOKOFNN-UHFFFAOYSA-N 0.000 description 10
- IWDCLRJOBJJRNH-UHFFFAOYSA-N p-cresol Chemical compound CC1=CC=C(O)C=C1 IWDCLRJOBJJRNH-UHFFFAOYSA-N 0.000 description 10
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 10
- 239000002585 base Substances 0.000 description 9
- PQAMFDRRWURCFQ-UHFFFAOYSA-N 2-ethyl-1h-imidazole Chemical compound CCC1=NC=CN1 PQAMFDRRWURCFQ-UHFFFAOYSA-N 0.000 description 8
- 238000011161 development Methods 0.000 description 8
- 230000018109 developmental process Effects 0.000 description 8
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- 125000000732 arylene group Chemical group 0.000 description 7
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 description 7
- 150000002989 phenols Chemical class 0.000 description 7
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-Diisopropylethylamine (DIPEA) Chemical compound CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 6
- 235000012431 wafers Nutrition 0.000 description 6
- GOLORTLGFDVFDW-UHFFFAOYSA-N 3-(1h-benzimidazol-2-yl)-7-(diethylamino)chromen-2-one Chemical compound C1=CC=C2NC(C3=CC4=CC=C(C=C4OC3=O)N(CC)CC)=NC2=C1 GOLORTLGFDVFDW-UHFFFAOYSA-N 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229920003180 amino resin Polymers 0.000 description 5
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 5
- 239000012298 atmosphere Substances 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000005229 chemical vapour deposition Methods 0.000 description 5
- 125000004122 cyclic group Chemical group 0.000 description 5
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 5
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- 239000004094 surface-active agent Substances 0.000 description 5
- 125000006527 (C1-C5) alkyl group Chemical group 0.000 description 4
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 4
- TUAMRELNJMMDMT-UHFFFAOYSA-N 3,5-xylenol Chemical compound CC1=CC(C)=CC(O)=C1 TUAMRELNJMMDMT-UHFFFAOYSA-N 0.000 description 4
- HMNKTRSOROOSPP-UHFFFAOYSA-N 3-Ethylphenol Chemical compound CCC1=CC=CC(O)=C1 HMNKTRSOROOSPP-UHFFFAOYSA-N 0.000 description 4
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 4
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 125000002947 alkylene group Chemical group 0.000 description 4
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 4
- 229930003836 cresol Natural products 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- 125000004428 fluoroalkoxy group Chemical group 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
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- 239000010703 silicon Substances 0.000 description 4
- AMSDWLOANMAILF-UHFFFAOYSA-N 2-imidazol-1-ylethanol Chemical compound OCCN1C=CN=C1 AMSDWLOANMAILF-UHFFFAOYSA-N 0.000 description 3
- IIFFFBSAXDNJHX-UHFFFAOYSA-N 2-methyl-n,n-bis(2-methylpropyl)propan-1-amine Chemical compound CC(C)CN(CC(C)C)CC(C)C IIFFFBSAXDNJHX-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
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- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 3
- 150000001299 aldehydes Chemical class 0.000 description 3
- 125000004429 atom Chemical group 0.000 description 3
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- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000005328 electron beam physical vapour deposition Methods 0.000 description 3
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- 150000004820 halides Chemical class 0.000 description 3
- 125000005842 heteroatom Chemical group 0.000 description 3
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- UVBMZKBIZUWTLV-UHFFFAOYSA-N n-methyl-n-propylpropan-1-amine Chemical compound CCCN(C)CCC UVBMZKBIZUWTLV-UHFFFAOYSA-N 0.000 description 3
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- 238000001771 vacuum deposition Methods 0.000 description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 3
- HCNHNBLSNVSJTJ-UHFFFAOYSA-N 1,1-Bis(4-hydroxyphenyl)ethane Chemical compound C=1C=C(O)C=CC=1C(C)C1=CC=C(O)C=C1 HCNHNBLSNVSJTJ-UHFFFAOYSA-N 0.000 description 2
- OWEYKIWAZBBXJK-UHFFFAOYSA-N 1,1-Dichloro-2,2-bis(4-hydroxyphenyl)ethylene Chemical compound C1=CC(O)=CC=C1C(=C(Cl)Cl)C1=CC=C(O)C=C1 OWEYKIWAZBBXJK-UHFFFAOYSA-N 0.000 description 2
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- XGLVDUUYFKXKPL-UHFFFAOYSA-N 2-(2-methoxyethoxy)-n,n-bis[2-(2-methoxyethoxy)ethyl]ethanamine Chemical compound COCCOCCN(CCOCCOC)CCOCCOC XGLVDUUYFKXKPL-UHFFFAOYSA-N 0.000 description 2
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- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
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- 125000001188 haloalkyl group Chemical group 0.000 description 2
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- QEMXHQIAXOOASZ-UHFFFAOYSA-N tetramethylammonium Chemical compound C[N+](C)(C)C QEMXHQIAXOOASZ-UHFFFAOYSA-N 0.000 description 2
- 125000005409 triarylsulfonium group Chemical group 0.000 description 2
- 150000003739 xylenols Chemical class 0.000 description 2
- LWNGJAHMBMVCJR-UHFFFAOYSA-N (2,3,4,5,6-pentafluorophenoxy)boronic acid Chemical compound OB(O)OC1=C(F)C(F)=C(F)C(F)=C1F LWNGJAHMBMVCJR-UHFFFAOYSA-N 0.000 description 1
- VGJKDZPHWMPCRQ-UHFFFAOYSA-N (3,4-dimethylphenyl)-(3-hydroxy-2,4-dimethylphenyl)methanone Chemical compound C1=C(C)C(C)=CC=C1C(=O)C1=CC=C(C)C(O)=C1C VGJKDZPHWMPCRQ-UHFFFAOYSA-N 0.000 description 1
- 125000006755 (C2-C20) alkyl group Chemical group 0.000 description 1
- LEEANUDEDHYDTG-UHFFFAOYSA-N 1,2-dimethoxypropane Chemical compound COCC(C)OC LEEANUDEDHYDTG-UHFFFAOYSA-N 0.000 description 1
- 125000002030 1,2-phenylene group Chemical group [H]C1=C([H])C([*:1])=C([*:2])C([H])=C1[H] 0.000 description 1
- NGFUWANGZFFYHK-UHFFFAOYSA-N 1,3,3a,4,6,6a-hexahydroimidazo[4,5-d]imidazole-2,5-dione;formaldehyde Chemical compound O=C.N1C(=O)NC2NC(=O)NC21 NGFUWANGZFFYHK-UHFFFAOYSA-N 0.000 description 1
- 150000005207 1,3-dihydroxybenzenes Chemical class 0.000 description 1
- 125000001989 1,3-phenylene group Chemical group [H]C1=C([H])C([*:1])=C([H])C([*:2])=C1[H] 0.000 description 1
- 125000004955 1,4-cyclohexylene group Chemical group [H]C1([H])C([H])([H])C([H])([*:1])C([H])([H])C([H])([H])C1([H])[*:2] 0.000 description 1
- RHEKZQMZMZKYQO-UHFFFAOYSA-N 1-(phenoxymethyl)anthracene Chemical compound C=1C=CC2=CC3=CC=CC=C3C=C2C=1COC1=CC=CC=C1 RHEKZQMZMZKYQO-UHFFFAOYSA-N 0.000 description 1
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- 125000005459 perfluorocyclohexyl group Chemical group 0.000 description 1
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- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
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- KRIOVPPHQSLHCZ-UHFFFAOYSA-N phenyl propionaldehyde Natural products CCC(=O)C1=CC=CC=C1 KRIOVPPHQSLHCZ-UHFFFAOYSA-N 0.000 description 1
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- 235000010989 polyoxyethylene sorbitan monostearate Nutrition 0.000 description 1
- 239000001816 polyoxyethylene sorbitan tristearate Substances 0.000 description 1
- 235000010988 polyoxyethylene sorbitan tristearate Nutrition 0.000 description 1
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- 238000002360 preparation method Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
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- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000003220 pyrenes Chemical class 0.000 description 1
- 125000005548 pyrenylene group Chemical group 0.000 description 1
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical compound OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 description 1
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- 238000004626 scanning electron microscopy Methods 0.000 description 1
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- 229940035048 sorbitan monostearate Drugs 0.000 description 1
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- 125000006850 spacer group Chemical group 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 125000000547 substituted alkyl group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 150000003459 sulfonic acid esters Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 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
- 239000010409 thin film Substances 0.000 description 1
- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 description 1
- 125000005424 tosyloxy group Chemical group S(=O)(=O)(C1=CC=C(C)C=C1)O* 0.000 description 1
- 125000000876 trifluoromethoxy group Chemical group FC(F)(F)O* 0.000 description 1
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 125000005023 xylyl group Chemical group 0.000 description 1
Images
Classifications
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- 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
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- G03F7/0382—Macromolecular compounds which are rendered insoluble or differentially wettable the macromolecular compound being present in a chemically amplified negative photoresist composition
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
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- G03F7/20—Exposure; Apparatus therefor
- G03F7/2002—Exposure; Apparatus therefor with visible light or UV light, through an original having an opaque pattern on a transparent support, e.g. film printing, projection printing; by reflection of visible or UV light from an original such as a printed image
- G03F7/2004—Exposure; Apparatus therefor with visible light or UV light, through an original having an opaque pattern on a transparent support, e.g. film printing, projection printing; by reflection of visible or UV light from an original such as a printed image characterised by the use of a particular light source, e.g. fluorescent lamps or deep UV light
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- G—PHYSICS
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- 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
- G03F7/2002—Exposure; Apparatus therefor with visible light or UV light, through an original having an opaque pattern on a transparent support, e.g. film printing, projection printing; by reflection of visible or UV light from an original such as a printed image
- G03F7/2012—Exposure; Apparatus therefor with visible light or UV light, through an original having an opaque pattern on a transparent support, e.g. film printing, projection printing; by reflection of visible or UV light from an original such as a printed image using liquid photohardening compositions, e.g. for the production of reliefs such as flexographic plates or stamps
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- G—PHYSICS
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- 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
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/30—Imagewise removal using liquid means
- G03F7/32—Liquid compositions therefor, e.g. developers
- G03F7/322—Aqueous alkaline compositions
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- G—PHYSICS
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- 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
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/38—Treatment before imagewise removal, e.g. prebaking
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/0271—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers
- H01L21/0272—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers for lift-off processes
-
- 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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/28008—Making conductor-insulator-semiconductor electrodes
- H01L21/28017—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon
- H01L21/28158—Making the insulator
- H01L21/28167—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation
- H01L21/28194—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation by deposition, e.g. evaporation, ALD, CVD, sputtering, laser deposition
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Materials For Photolithography (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
- Weting (AREA)
- Electroluminescent Light Sources (AREA)
Description
a)環結合ヒドロキシル基を有する、塩基水溶液可溶性フェノール系膜形成用高分子バインダー樹脂。
b)膜形成用バインダー樹脂の架橋を開始するのに十分な量の、365nmの放射線に露光することで酸を形成する光酸発生剤。
c)放射線に露光することによって発生したステップb)からの酸への曝露でカルボニウムイオンを形成し、エーテル化メラミンを含む、架橋剤。
d)365nmで、約1.61×104~約1.07×104モル-1L cm-1を範囲とするモル減衰係数を有する染料。
e)水中で約6.0~約12のpKaを有するアミンクエンチャーまたはこうしたアミンクエンチャーの混合物から本質的になるクエンチャー系であり、アミンクエンチャーは、1気圧で少なくとも100℃の沸点を有し、少なくとも1個のC2~C25アルキル置換基、-(CH2)nOH置換基もしくは-(CH2)n-O-(CH2)n’-O-R’置換基(nおよびn’は独立して2~4を範囲とする整数であり、R’はC1~C4アルキルまたはHである)を含むか、またはこれらの置換基の混合物を含む、クエンチャー系。
a)環結合ヒドロキシル基を有する、塩基水溶液可溶性フェノール系膜形成用高分子バインダー樹脂;
b)膜形成用バインダー樹脂の架橋を開始するのに十分な量の、365nmの放射線への露光で酸を形成する光酸発生剤;
c)放射線への露光によって発生したステップb)からの酸への曝露でカルボニウムイオンを形成し、エーテル化メラミンを含む、架橋剤;
d)PGMEAで測定した場合、365nmで、約1.74×104~約0.94×104モル-1L cm-1を範囲とするモル減衰係数を有する染料;
e)水中で約6.0~約12のpKaを有するアミンクエンチャーまたはこうしたアミンクエンチャーの混合物から本質的になるクエンチャー系であり、アミンクエンチャーは、1気圧で少なくとも100℃の沸点を有し、C2~C25アルキル置換基、-(CH2)nOH置換基、-(CH2)n-O-(CH2)n’-O-R’、またはこれらの置換基の混合物で置換されており、式中、nおよびn’は独立して2~4を範囲とする整数であり、R’はC1~C4アルキルまたはHである、クエンチャー系;ならびに
f)フォトレジスト溶媒。
a1)上述のフォトレジスト組成物のいずれか1つを、適当な基板の表面上にコーティングすることで、フォトレジストコーティングを形成すること;
b1)ステップb)からの前記フォトレジストコーティング基板を、実質的に全てのフォトレジスト溶媒がフォトレジスト組成物から除去されるまで加熱処理することで、フォトレジスト膜を形成すること;
c1)ステップc)からの前記フォトレジスト膜を、画像化用i線放射線に画像露光して、露光および非露光領域を含有する照射済みフォトレジスト膜を形成すること;
d1)露光ステップc)の後で前記照射レジスト膜を焼成すること;
e1)ステップd1)からの前記照射済みフォトレジスト膜の非露光エリアを現像剤で除去することで、レジスト基板相間(substrate interphase)でアンダーカットされてフォトレジストオーバーハングを形成するアンダーカットフォトレジストパターンで被覆された基板を形成すること。
a2)EBPVD、CVD堆積またはスパッタリングによる金属堆積を使用し、新規なフォトレジストを画像化するための上述のプロセスのステップe1)からのアンダーカットフォトレジストパターンで被覆された前記基板上に、金属の層を堆積することであり、ここで、金属は、アンダーカットフォトレジストパターンで被覆された前記基板上に堆積する。このステップにおいて、金属は、フォトレジスト膜それ自体によってまたは前記基板相間におけるレジストのオーバーハングによってのいずれかで保護されていない前記フォトレジストパターンにおける露出基板においてのみ堆積する。この方式において、金属堆積は、残っているフォトレジストまたはレジストオーバーハングによって被覆されていない基板上の他所で起こることで、選択的金属堆積、およびフォトレジストパターンのみの最上部のみに金属のコーティングを有するアンダーカットフォトレジストパターン(表面金属レジストパターン)を有する基板を形成するが、オーバーハングによって保護された前記パターン化フォトレジストにおける非被覆基板には起こらない。
b2)ステップa2)の後、剥離プロセスを用いて前記金属化フォトレジストパターンを除去することで基板をもたらすことであり、ここで、金属化は、アンダーカットパターン化フォトレジストのオーバーハングによって保護されていない前記パターン化フォトレジストにおける露出基板にのみ起こっている。このステップにおいて、剥離プロセスは、化学的剥離剤を使用することよってまたは接着剤テープを使用することによってのいずれかで達成することができる。剥離が接着剤テープを使用して行われるならば、任意の残留フォトレジストを除去するために、さらなる化学的剥離ステップが必要とされ得る。
ここで、本開示のより特定の実施形態およびこうした実施形態の裏付けを提供する実験結果を参照する。しかしながら、出願人らは、下記の本開示が例示的な目的のみであり、請求されている主題の範疇を任意のやり方で限定すると意図されないことを注記する。
CKS-670:レジスト配合物中に用いた、Shonol(日本)(Mw:9034、Mn:2195PD:4.1)からの市販のノボラックポリマーであり、ビスフェノールA、メタ-クレゾールおよびホルムアルデヒドのコポリマーであり、一般構造(2)を有する反復単位を含み、式中、qはポリマー鎖における反復単位の数を表し、-CH2-反復単位の付着は、オルト位またはパラ位であってよい。該バインダー樹脂は、ビスフェノールAから誘導された反復単位上の追加の1つから2つのオルト位が、メタ-クレゾールまたはビスフェノールAのいずれかから誘導された別の反復単位に付着した-CH2-反復単位に連結されている分岐構造を含有することもできる。さらに、メタ-クレゾールから誘導された反復単位上の追加のメタ位またはパラ位は、メタ-クレゾールまたはビスフェノールAのいずれかから誘導された別の反復単位に付着した-CH2-反復単位に連結することができる。
表1、2、3、4および5に記載されている例の構成成分を、これらの表に記載されている通りの割合で、それらをPGMEA中に溶解させることによって一緒に合わせ、続いて、0.2ミクロンPTFE(ポリテトラフルオロエチレン)フィルターに通して濾過した。試験された典型的なレジスト配合物についての試料サイズは、約50ml~約100mLのPGMEAを含有していた。
表1は、新規なフォトレジスト組成物および比較用フォトレジスト組成物の組成を記載することを除き、これらの配合物の各々について認められたアンダーカット挙動の特徴である代表的なSEM断面写真を示すことによってアンダーカット性能も纏めている。具体的に、表1は8種のレジスト配合物を比較しており、これらの一部は、大きな露光寛容度で予想外の大きなアンダーカットSEM形体を顕在化することを必要とされる全ての構成成分を含有している。
比較例6:露光軟焼成(SB)の条件:110℃/90”、露光:Nikon FX-601 0.1NAステッパ。露光後焼成(PEB):105℃/2min。現像:2.38%水酸化テトラメチルアンモニウム(TMAH)/60”
例3、露光の条件:SB:100℃/120秒、PEB:90℃/90秒、露光:0.48NA、ASML i線ステッパ現像:40秒、AZ(登録商標)300MIF現像剤。
すなわち、クエンチャー系制約は、それが、水中で約6.0~約12のpKaを有するアミンクエンチャーまたはこうしたアミンクエンチャーの混合物から必須になっていなければならないということであって、ここで、アミンクエンチャーは1気圧で少なくとも100℃の沸点を有し、少なくとも1個のC2~C25アルキル置換基、-(CH2)nOH置換基もしくは-(CH2)n-O-(CH2)n’-O-R’置換基を含むか、またはこれらの置換基の混合物を含む。
図6、(AI)クエンチャーを使用する例7。図6、(MNNE)クエンチャーを使用する例8
図7、(2EI)クエンチャーを使用する例9
図8、N-メチルジプロピルアミンクエンチャーを使用する例10
図8、N,N-ジイソプロピルエチルアミンクエンチャーを使用する例11
図9、トリス-イソブチルアミンクエンチャーを使用する例12および13
Claims (31)
- 塩基水溶液中で現像可能である、365nmの放射線によって画像化可能な化学増幅ネガ作用型フォトレジスト組成物であって、固体構成成分a)、b)、c)、d)およびe)ならびに溶媒構成成分f);
a)環結合ヒドロキシル基を有する、塩基可溶性ノボラックである塩基水溶液可溶性フェノール系膜形成用高分子バインダー樹脂;
b)膜形成用バインダー樹脂の架橋を開始するのに十分な量の、365nmの放射線への露光で酸を形成するトリハロメチル誘導体に基づく光酸発生剤(ここでハロ部分は塩素または臭素であり);
c)放射線への露光によって発生したステップb)からの酸への曝露でカルボニウムイオンを形成し、エーテル化メラミンを含む、架橋剤;
d)PGMEAで測定した場合、365nmで、1.74×104 ~0.94×104モル-1Lcm-1を範囲とするモル減衰係数を有する塩基水溶液中で可溶性である染料;
e)水中で6.0~12のpKaを有するアミンクエンチャーまたはこうしたアミンクエンチャーの混合物から本質的になるクエンチャー系であり、アミンクエンチャーは、1気圧で少なくとも100℃の沸点を有し、少なくとも1個のC2~C25アルキル置換基、-(CH2)nOH置換基または-(CH2)n-O-(CH2)n’-O-R’置換基(式中、nおよびn’は独立して2~4を範囲とする整数であり、R’はC1~C4アルキルまたはHである)を含むか、またはこれらの置換基の混合物を含む、クエンチャー系;
f)フォトレジスト溶媒
を含む、フォトレジスト組成物。 - 固体構成成分b)が、1個~3個のトリハロメチル置換基を含有する、アレーンまたは置換アレーンのトリハロメチル誘導体である、請求項1~4のいずれか一つに記載のフォトレジスト組成物。
- 固体構成成分b)が、スルホンスペーサー(-SO2-)を介して前記アレーンまたは置換アレーン部分に付着した1個~3個のトリハロメチル置換基を含有する、アレーンまたは置換アレーンのトリハロメチル誘導体である、請求項6に記載のフォトレジスト組成物。
- 固体構成成分b)が、1つ~3つのトリハロメチル部分を含有する、ヘテロアレーンまたは置換ヘテロアレーンのトリハロメチル誘導体である、請求項1~4のいずれか一つに記載のフォトレジスト組成物。
- 固体構成成分b)が、スルホンスペーサー(-SO2-)を介して前記ヘテロアレーンまたは置換ヘテロアレーンに付着した1個~3個のトリハロメチル置換基を含有する、ヘテロアレーンまたは置換ヘテロアレーンのトリハロメチル誘導体である、請求項8に記載のフォトレジスト組成物。
- 固体構成成分b)が、1つまたは2つのトリハロメチル部分を含有する、置換トリアジンのトリハロメチル誘導体である、請求項1~4のいずれか一つに記載のフォトレジスト組成物。
- 構造(1)を有する固体構成成分e)である前記クエンチャーは、R1がC15~C20アルキル部分であり、R1aが-(CH2)nOH(式中、nは2~4を範囲とする整数である)であり、さらに、3位および2位が単結合によって接続されている、請求項2に記載のフォトレジスト組成物。
- 固体構成成分e)である前記クエンチャー系が、構造(1)の1種の化合物を有するものであり、式中、R1はC15~C20アルキル部分であり、R1aはC1~C5アルキルであり、さらに、3位および2位は単結合によって接続されている、請求項2に記載のフォトレジスト組成物。
- 構造(1)を有する固体構成成分e)である前記クエンチャーは、R1がC1~C5アルキル部分またはHであり、R1aが-(CH2)nOH(式中、nは2~4を範囲とする整数である)であり、さらに、3位および2位が二重結合によって接続されているものである、請求項2に記載のフォトレジスト組成物。
- 構造(1)を有する固体構成成分e)である前記クエンチャーは、R1がC1~C3アルキル部分またはHであり、R1aが-(CH2)nOH(式中、nは2~4を範囲とする整数である)であり、さらに、3位および2位が二重結合によって接続されているものである、請求項2に記載のフォトレジスト組成物。
- 構造(1)を有する固体構成成分e)である前記クエンチャーは、R1がHであり、R1aが-(CH2)nOH(式中、nは2~4を範囲とする整数である)であり、さらに、3位および2位が二重結合によって接続されているものである、請求項2に記載のフォトレジスト組成物。
- 固体構成成分e)である前記クエンチャー系が、構造(1)の1種の化合物を有するものであり、式中、R1は、C15~C20アルキル部分であり、R1aはC1~C5アルキルであり、さらに、3位および2位は二重結合によって接続されている、請求項2に記載のフォトレジスト組成物。
- 総固体構成成分a)、b)、c)、d)の組成について、固体構成成分a)が60質量%~90質量%であり;固体構成成分b)が0.5質量%~8.0質量%であり;固体構成成分c)が8.0質量%~30質量%であり;構成成分d)が0.4質量%~8.0質量%であり;固体構成成分e)が0.5質量%~4.0質量%であり、ここで、全ての固体構成成分a)、b)、c)、d)およびe)の総和質量%が100質量%を超えない、請求項1~4のいずれか一つに記載のフォトレジスト組成物。
- a1)請求項1~4のいずれか一つからのフォトレジスト組成物を、適当な基板の表面上にコーティングすることで、フォトレジストコーティングを形成すること;
b1)ステップb)からの前記フォトレジストコーティング基板を、実質的に全てのフォトレジスト溶媒がフォトレジスト組成物から除去されるまで加熱処理することで、フォトレジスト膜を形成すること;
c1)ステップc)からの前記フォトレジスト膜を、画像化用i線放射線に画像露光して、露光および非露光領域を含有する照射済みフォトレジスト膜を形成すること;
d1)露光ステップc)の後で前記照射レジスト膜を焼成すること;
e1)ステップd1)からの前記照射済みフォトレジスト膜の非露光エリアを現像剤で除去することで、レジスト基板相間でアンダーカットされてフォトレジストオーバーハングを形成するアンダーカットフォトレジストパターンで被覆された基板を形成すること
を含む、フォトレジスト組成物を画像化するための方法。 - a2)EBPVD、CVD堆積またはスパッタリングによる金属堆積を使用し、請求項29のステップe1)からのアンダーカットフォトレジストパターンで被覆された前記基板上に、金属の層を堆積することであり、ここで、アンダーカットフォトレジストパターンで被覆された前記基板上の金属堆積は、前記基板相間で前記フォトレジストオーバーハングによって保護されていない前記パターン化フォトレジストにおける露出基板にのみ金属を堆積させるが、さらに、金属堆積は、残っているフォトレジストによって被覆されていない基板上の他所で起こることで、選択的金属堆積、およびフォトレジストパターンのみの最上部に金属のコーティングを有するアンダーカットフォトレジストパターン(表面金属化レジストパターン)の両方を有する基板を形成する、前記金属の層を堆積すること;
b2)ステップa2)の後、前記金属化フォトレジストパターンを剥離することで基板をもたらすことであり、ここで、金属化は、アンダーカットパターン化フォトレジストのオーバーハングによって保護されていない前記パターン化フォトレジストにおける露出基板にのみ起こっている、前記基板をもたらすこと
を含む、基板上のパターン化フォトレジストの金属化のためのリフトオフプロセス。 - 塩基水溶液中で現像可能である、365nmの放射線によって画像化可能な化学増幅ネガ作用型フォトレジスト組成物であって、固体構成成分a)、b)、c)、d)およびe)ならびに溶媒構成成分f);
a)環結合ヒドロキシル基を有する、塩基水溶液可溶性フェノール系膜形成用高分子バインダー樹脂であり、前記バインダー樹脂は、構造(2)を有する反復単位を含み、式中、qは、ポリマー鎖における反復単位の数である、前記バインダー樹脂;
を含む、フォトレジスト組成物。
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- 2018-04-23 EP EP18722419.1A patent/EP3616004A1/en active Pending
- 2018-04-23 SG SG11201908415X patent/SG11201908415XA/en unknown
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- 2018-04-23 CN CN201880027584.8A patent/CN110582727B/zh active Active
- 2018-04-23 TW TW107113642A patent/TWI816671B/zh active
- 2018-04-23 KR KR1020197034832A patent/KR102476033B1/ko active IP Right Grant
- 2018-04-23 JP JP2019557834A patent/JP6997801B2/ja active Active
- 2018-04-23 US US16/496,986 patent/US12124166B2/en active Active
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TWI816671B (zh) | 2023-10-01 |
US12124166B2 (en) | 2024-10-22 |
SG11201908415XA (en) | 2019-11-28 |
WO2018197379A1 (en) | 2018-11-01 |
CN110582727A (zh) | 2019-12-17 |
EP3616004A1 (en) | 2020-03-04 |
CN110582727B (zh) | 2023-09-22 |
JP2020518012A (ja) | 2020-06-18 |
KR102476033B1 (ko) | 2022-12-08 |
TW201906884A (zh) | 2019-02-16 |
US20200319555A1 (en) | 2020-10-08 |
KR20190142377A (ko) | 2019-12-26 |
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