KR100546138B1 - 신규한 포토레지스트 단량체, 그의 중합체 및 이를함유하는 포토레지스트 조성물 - Google Patents
신규한 포토레지스트 단량체, 그의 중합체 및 이를함유하는 포토레지스트 조성물 Download PDFInfo
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- KR100546138B1 KR100546138B1 KR1020000037227A KR20000037227A KR100546138B1 KR 100546138 B1 KR100546138 B1 KR 100546138B1 KR 1020000037227 A KR1020000037227 A KR 1020000037227A KR 20000037227 A KR20000037227 A KR 20000037227A KR 100546138 B1 KR100546138 B1 KR 100546138B1
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- South Korea
- Prior art keywords
- dipropazyl
- photoresist
- formula
- polymer
- acetamide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229920002120 photoresistant polymer Polymers 0.000 title claims abstract description 53
- 229920000642 polymer Polymers 0.000 title claims abstract description 34
- 239000000203 mixture Substances 0.000 title claims abstract description 19
- 239000000178 monomer Substances 0.000 title claims description 17
- 150000003869 acetamides Chemical class 0.000 claims abstract description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 68
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical compound CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 claims description 66
- -1 acetate ester Chemical class 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 25
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 21
- 239000003054 catalyst Substances 0.000 claims description 19
- 125000003386 piperidinyl group Chemical group 0.000 claims description 17
- 239000002253 acid Substances 0.000 claims description 16
- 125000000719 pyrrolidinyl group Chemical group 0.000 claims description 14
- 239000003960 organic solvent Substances 0.000 claims description 13
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 12
- 238000006116 polymerization reaction Methods 0.000 claims description 10
- 125000006239 protecting group Chemical group 0.000 claims description 9
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 9
- 125000006232 ethoxy propyl group Chemical group [H]C([H])([H])C([H])([H])OC([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 7
- 125000005448 ethoxyethyl group Chemical group [H]C([H])([H])C([H])([H])OC([H])([H])C([H])([H])* 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 6
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims description 5
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 5
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 claims description 4
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 claims description 4
- DJHGAFSJWGLOIV-UHFFFAOYSA-K Arsenate3- Chemical compound [O-][As]([O-])([O-])=O DJHGAFSJWGLOIV-UHFFFAOYSA-K 0.000 claims description 4
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 4
- AKOJHIADVIWDJF-UHFFFAOYSA-N [F].[F].[F].[F].[F].[F].C1(=CC=CC=C1)[S+](C1=CC=CC=C1)C1=CC=CC=C1 Chemical compound [F].[F].[F].[F].[F].[F].C1(=CC=CC=C1)[S+](C1=CC=CC=C1)C1=CC=CC=C1 AKOJHIADVIWDJF-UHFFFAOYSA-N 0.000 claims description 4
- 229940000489 arsenate Drugs 0.000 claims description 4
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 claims description 4
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 4
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 claims description 4
- 238000005649 metathesis reaction Methods 0.000 claims description 4
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- WLOQLWBIJZDHET-UHFFFAOYSA-N triphenylsulfonium Chemical compound C1=CC=CC=C1[S+](C=1C=CC=CC=1)C1=CC=CC=C1 WLOQLWBIJZDHET-UHFFFAOYSA-N 0.000 claims description 3
- 239000012953 triphenylsulfonium Substances 0.000 claims description 3
- RLAWXWSZTKMPQQ-UHFFFAOYSA-M (4-tert-butylphenyl)-diphenylsulfanium;trifluoromethanesulfonate Chemical compound [O-]S(=O)(=O)C(F)(F)F.C1=CC(C(C)(C)C)=CC=C1[S+](C=1C=CC=CC=1)C1=CC=CC=C1 RLAWXWSZTKMPQQ-UHFFFAOYSA-M 0.000 claims description 2
- JQCSUVJDBHJKNG-UHFFFAOYSA-N 1-methoxy-ethyl Chemical group C[CH]OC JQCSUVJDBHJKNG-UHFFFAOYSA-N 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 101150003085 Pdcl gene Proteins 0.000 claims description 2
- DRMAIBPBPJNFDH-UHFFFAOYSA-M [4-(2-methylpropyl)phenyl]-diphenylsulfanium;trifluoromethanesulfonate Chemical compound [O-]S(=O)(=O)C(F)(F)F.C1=CC(CC(C)C)=CC=C1[S+](C=1C=CC=CC=1)C1=CC=CC=C1 DRMAIBPBPJNFDH-UHFFFAOYSA-M 0.000 claims description 2
- 229950005499 carbon tetrachloride Drugs 0.000 claims description 2
- BHXIWUJLHYHGSJ-UHFFFAOYSA-N ethyl 3-ethoxypropanoate Chemical compound CCOCCC(=O)OCC BHXIWUJLHYHGSJ-UHFFFAOYSA-N 0.000 claims description 2
- 229940116333 ethyl lactate Drugs 0.000 claims description 2
- 238000010884 ion-beam technique Methods 0.000 claims description 2
- 229910001507 metal halide Inorganic materials 0.000 claims description 2
- 150000005309 metal halides Chemical class 0.000 claims description 2
- BDJSOPWXYLFTNW-UHFFFAOYSA-N methyl 3-methoxypropanoate Chemical compound COCCC(=O)OC BDJSOPWXYLFTNW-UHFFFAOYSA-N 0.000 claims description 2
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 150000002902 organometallic compounds Chemical class 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- 230000000379 polymerizing effect Effects 0.000 claims description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims description 2
- 125000004192 tetrahydrofuran-2-yl group Chemical group [H]C1([H])OC([H])(*)C([H])([H])C1([H])[H] 0.000 claims description 2
- 125000004187 tetrahydropyran-2-yl group Chemical group [H]C1([H])OC([H])(*)C([H])([H])C([H])([H])C1([H])[H] 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- ITMCEJHCFYSIIV-UHFFFAOYSA-M triflate Chemical compound [O-]S(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-M 0.000 claims description 2
- 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 claims description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims 2
- 239000004305 biphenyl Substances 0.000 claims 2
- 235000010290 biphenyl Nutrition 0.000 claims 2
- 125000006267 biphenyl group Chemical group 0.000 claims 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 claims 2
- 229910052786 argon Inorganic materials 0.000 claims 1
- XWEVKPKISJJUAH-UHFFFAOYSA-N benzenethiol;trifluoromethanesulfonic acid Chemical compound [SH2+]C1=CC=CC=C1.[O-]S(=O)(=O)C(F)(F)F XWEVKPKISJJUAH-UHFFFAOYSA-N 0.000 claims 1
- 150000002168 ethanoic acid esters Chemical class 0.000 claims 1
- LXAWHMFHGHNIHC-UHFFFAOYSA-N sulfanyl trifluoromethanesulfonate Chemical compound FC(F)(F)S(=O)(=O)OS LXAWHMFHGHNIHC-UHFFFAOYSA-N 0.000 claims 1
- 238000005530 etching Methods 0.000 abstract description 5
- 239000000243 solution Substances 0.000 description 13
- 238000002360 preparation method Methods 0.000 description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 6
- 239000012299 nitrogen atmosphere Substances 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001312 dry etching Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- KDISMIMTGUMORD-UHFFFAOYSA-N N-acetylpiperidine Natural products CC(=O)N1CCCCC1 KDISMIMTGUMORD-UHFFFAOYSA-N 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 239000012044 organic layer Substances 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WBUSZOLVSDXDOC-UHFFFAOYSA-M (4-methoxyphenyl)-diphenylsulfanium;trifluoromethanesulfonate Chemical compound [O-]S(=O)(=O)C(F)(F)F.C1=CC(OC)=CC=C1[S+](C=1C=CC=CC=1)C1=CC=CC=C1 WBUSZOLVSDXDOC-UHFFFAOYSA-M 0.000 description 1
- RCOCMILJXXUEHU-UHFFFAOYSA-N (4-methylphenyl)-diphenylsulfanium Chemical compound C1=CC(C)=CC=C1[S+](C=1C=CC=CC=1)C1=CC=CC=C1 RCOCMILJXXUEHU-UHFFFAOYSA-N 0.000 description 1
- LNWWQYYLZVZXKS-UHFFFAOYSA-N 1-pyrrolidin-1-ylethanone Chemical compound CC(=O)N1CCCC1 LNWWQYYLZVZXKS-UHFFFAOYSA-N 0.000 description 1
- 0 CC(*)OC(C(CC(C(C)*(C)=C(CC(C1)O)C=C1C(C)(C)C=C(C1)C=C(CC=C)CC1C(N1CCCC1)=O)=C1)CC1=CC)=O Chemical compound CC(*)OC(C(CC(C(C)*(C)=C(CC(C1)O)C=C1C(C)(C)C=C(C1)C=C(CC=C)CC1C(N1CCCC1)=O)=C1)CC1=CC)=O 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 125000004183 alkoxy alkyl group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 230000007261 regionalization Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Images
Classifications
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- 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
- G03F7/038—Macromolecular compounds which are rendered insoluble or differentially wettable
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
- C07D295/16—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms acylated on ring nitrogen atoms
- C07D295/18—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms acylated on ring nitrogen atoms by radicals derived from carboxylic acids, or sulfur or nitrogen analogues thereof
- C07D295/182—Radicals derived from carboxylic acids
- C07D295/185—Radicals derived from carboxylic acids from aliphatic carboxylic acids
-
- 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
- G03F7/039—Macromolecular compounds which are photodegradable, e.g. positive electron resists
- G03F7/0392—Macromolecular compounds which are photodegradable, e.g. positive electron resists the macromolecular compound being present in a chemically amplified positive photoresist composition
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/1053—Imaging affecting physical property or radiation sensitive material, or producing nonplanar or printing surface - process, composition, or product: radiation sensitive composition or product or process of making binder containing
- Y10S430/1055—Radiation sensitive composition or product or process of making
- Y10S430/106—Binder containing
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Materials For Photolithography (AREA)
Abstract
Description
Claims (24)
- 삭제
- 삭제
- 제 4 항에 있어서,상기 산에 민감한 보호기는 테트라히드로피란-2-일, 2-메틸 테트라히드로피란-2-일, 테트라히드로퓨란-2-일, 2-메틸 테트라히드로퓨란-2-일, 1-메톡시프로필, 1-메톡시-1-메틸에틸, 1-에톡시프로필, 1-에톡시-1-메틸에틸, 1-메톡시에틸, 1-에톡시에틸, t-부톡시에틸, 1-이소부톡시에틸, t-부틸 및 2-아세틸멘트-1-일로 이루어진 군에서 선택되는 것을 특징으로 하는 포토레지스트 중합체.
- 제 3 항에 있어서,상기 중합체는 폴리(t-부틸 디프로파질아세테이트 / 디프로파질 카비놀 / 피페리디닐 디프로파질 아세트아미드);폴리(에톡시에틸 디프로파질아세테이트 / 디프로파질 카비놀 / 피페리디닐 디프로파질 아세트아미드);폴리(에톡시프로필 디프로파질아세테이트 / 디프로파질 카비놀 / 피페리디닐 디프로파질 아세트아미드);폴리(t-부틸 디프로파질아세테이트 / 디프로파질 카비놀 / 피롤리디닐 디프로파질 아세트아미드);폴리(에톡시에틸 디프로파질아세테이트 / 디프로파질 카비놀 / 피롤리디닐 디프로파질 아세트아미드); 및폴리(에톡시프로필 디프로파질아세테이트 / 디프로파질 카비놀 / 피롤리디닐 디프로파질 아세트아미드)로 이루어진 군으로부터 선택된 것을 특징으로 하는 포토레지스트 중합체.
- (a) 메타세시스(metathesis) 중합용 촉매를 유기용매에 용해시켜 촉매 용액을 제조하는 단계;(b) 상기 촉매 용액을 중합용매에 첨가하고 20∼40℃ 온도에서 10∼20분 동안 방치하는 단계;(c) 상기 (b)단계의 결과물 용액에 하기 화학식 1의 디프로파질 아세트아미드 유도체; 화학식 2의 디프로파질 아세트산 에스테르 유도체; 및 화학식 3의 디프로파질 카비놀로 이루어진 군으로부터 선택되는 하나 이상의 단량체를 첨가하는 단계; 및(d) 상기 (c)단계의 결과물 용액을 질소 또는 아르곤 분위기 하에서 중합반응시키는 단계를 포함하는 것을 특징으로 하는 포토레지스트 중합체의 제조방법.[화학식 1]상기 식에서, n은 1 내지 5 중에서 선택되는 정수이다.[화학식 2]상기 식에서, R3는 수소 또는 산에 민감한 보호기이다.[화학식 3]
- 제 7 항에 있어서,상기 (b)단계에서 중합용매에 촉매 용액을 첨가한 다음에 조촉매를 유기용매에 녹인 조촉매 용액을 더 첨가하여 방치하는 것을 특징으로 하는 포토레지스트 중합체의 제조방법.
- 제 7 항 또는 제 8 항에 있어서,상기 촉매 또는 조촉매는 전이금속-할라이드 또는 유기금속 화합물인 것을 특징으로 하는 포토레지스트 중합체의 제조방법.
- 제 9 항에 있어서,상기 촉매는 MoCl5, WCl6, Mo(OEt)5 및 PdCl2 로 이루어진 군으로부터 선택되는 것을 특징으로 하는 포토레지스트 중합체의 제조방법.
- 제 9 항에 있어서,상기 조촉매는 (n-Bu)4Sn 또는 EtAlCl2 인 것을 특징으로 하는 포토레지스트 중합체의 제조방법.
- 제 7 항에 있어서,중합용매는 클로로벤젠, 1,4-디옥산, 디메틸포름아미드, 시클로헥산, 테트라클로로메탄 및 테트라히드로퓨란으로 이루어진 군으로부터 선택된 것을 특징으로 하는 포토레지스트 중합체의 제조방법.
- 제 7 항에 있어서,상기 촉매를 용해시키는 유기용매는 헥산, 테트라히드로퓨란 및 시클로헥산으로 이루어진 군으로부터 선택된 것을 특징으로 하는 포토레지스트 중합체의 제조방법.
- 제 3 항의 포토레지스트 중합체와, 유기용매와, 광산발생제를 포함하는 것을 특징으로 하는 포토레지스트 조성물.
- 제 14 항에 있어서,상기 광산발생제는 디페닐요도염 헥사플루오르포스페이트, 디페닐요도염 헥사플루오르 아르세네이트, 디페닐요도염 헥사플루오르 안티모네이트, 디페닐파라메톡시페닐설포늄 트리플레이트, 디페닐파라톨루에닐설포늄 트리플레이트, 디페닐파라이소부틸페닐설포늄 트리플레이트, 디페닐파라-t-부틸페닐설포늄 트리플레이트, 트리페닐설포늄 헥사플루오르 포스페이트, 트리페닐설포늄 헥사플루오르 아르세네이트, 트리페닐설포늄 헥사플루오르 안티모네이트, 트리페닐설포늄 트리플레이트 및 디부틸나프틸설포늄 트리플레이트로 이루어진 군으로부터 선택된 것을 하나 또는 둘 이상 포함하는 것을 특징으로 하는 포토레지스트 조성물.
- 제 14 항에 있어서,상기 광산발생제는 상기 중합체에 대해 0.01 내지 10 중량부로 사용되는 것을 특징으로 하는 포토레지스트 조성물.
- 제 14 항에 있어서,상기 유기용매는 프로필렌글리콜 메틸 에테르 아세테이트, 프로필렌글리콜 메틸 에테르, 에틸락테이트, 메틸 3-메톡시프로피오네이트, 에틸 3-에톡시프로피오네이트 및 시클로헥사논으로 이루어진 군으로부터 선택된 것임을 특징으로 하는 포토레지스트 조성물.
- 제 14 항에 있어서,상기 유기용매는 상기 중합체에 대해 100 내지 1000 중량부로 사용되는 것을 특징으로 하는 포토레지스트 조성물.
- (a) 제 14 항 기재의 포토레지스트 조성물을 피식각층 상부에 도포하는 단계;(b) 상기 결과물을 베이크 하여 포토레지스트막을 형성하는 단계;(c) 상기 포토레지스트막을 노광하는 단계;(d) 상기 노광된 포토레지스트막을 베이크하는 단계; 및(e) 상기 결과물을 현상하여 원하는 패턴을 얻는 단계로 이루어지는 것을 특징으로 하는 포토레지스트 패턴 형성방법.
- 삭제
- 삭제
- 제 19 항에 있어서,상기 노광공정은 광원으로서 VUV (157nm), ArF (193nm), KrF (248nm) 및 EUV (13nm)를 포함하는 원자외선 (DUV; Deep Ultra Violet), E-빔, X-선, F2 또는 이온빔을 이용하여 수행되는 것을 특징으로 하는 포토레지스트 패턴 형성방법.
- 삭제
- 제 19 항 기재의 방법에 의하여 제조된 반도체 소자.
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US6607868B2 (en) | 2003-08-19 |
KR20020002876A (ko) | 2002-01-10 |
US20020012879A1 (en) | 2002-01-31 |
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