JP4384919B2 - ハードマスク層用の反射防止SiO含有組成物 - Google Patents
ハードマスク層用の反射防止SiO含有組成物 Download PDFInfo
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- JP4384919B2 JP4384919B2 JP2003586669A JP2003586669A JP4384919B2 JP 4384919 B2 JP4384919 B2 JP 4384919B2 JP 2003586669 A JP2003586669 A JP 2003586669A JP 2003586669 A JP2003586669 A JP 2003586669A JP 4384919 B2 JP4384919 B2 JP 4384919B2
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- 239000000203 mixture Substances 0.000 title claims description 64
- 230000003667 anti-reflective effect Effects 0.000 title claims description 26
- 229920000642 polymer Polymers 0.000 claims description 44
- 239000000463 material Substances 0.000 claims description 42
- 238000000034 method Methods 0.000 claims description 29
- 239000002253 acid Substances 0.000 claims description 24
- 238000003384 imaging method Methods 0.000 claims description 19
- 239000000758 substrate Substances 0.000 claims description 18
- 238000004132 cross linking Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 14
- 238000005530 etching Methods 0.000 claims description 13
- -1 hydroxymethylbenzyl group Chemical group 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 238000001459 lithography Methods 0.000 claims description 7
- 239000004065 semiconductor Substances 0.000 claims description 7
- 125000006289 hydroxybenzyl group Chemical group 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000000178 monomer Substances 0.000 claims description 6
- 238000004528 spin coating Methods 0.000 claims description 6
- 239000004971 Cross linker Substances 0.000 claims description 5
- 238000010894 electron beam technology Methods 0.000 claims description 5
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- DHXVGJBLRPWPCS-UHFFFAOYSA-N Tetrahydropyran Chemical compound C1CCOCC1 DHXVGJBLRPWPCS-UHFFFAOYSA-N 0.000 claims description 2
- 150000002118 epoxides Chemical class 0.000 claims description 2
- KBXJHRABGYYAFC-UHFFFAOYSA-N octaphenylsilsesquioxane Chemical compound O1[Si](O2)(C=3C=CC=CC=3)O[Si](O3)(C=4C=CC=CC=4)O[Si](O4)(C=5C=CC=CC=5)O[Si]1(C=1C=CC=CC=1)O[Si](O1)(C=5C=CC=CC=5)O[Si]2(C=2C=CC=CC=2)O[Si]3(C=2C=CC=CC=2)O[Si]41C1=CC=CC=C1 KBXJHRABGYYAFC-UHFFFAOYSA-N 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 2
- XHTWKNPMPDIELI-UHFFFAOYSA-N phenylmethoxysilane Chemical compound [SiH3]OCC1=CC=CC=C1 XHTWKNPMPDIELI-UHFFFAOYSA-N 0.000 claims 1
- 239000010410 layer Substances 0.000 description 67
- 230000005855 radiation Effects 0.000 description 27
- 239000002904 solvent Substances 0.000 description 12
- 238000012546 transfer Methods 0.000 description 9
- 229920002120 photoresistant polymer Polymers 0.000 description 7
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 6
- 238000009472 formulation Methods 0.000 description 6
- 239000010408 film Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 239000003431 cross linking reagent Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 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 3
- 239000003054 catalyst Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 3
- 238000004377 microelectronic Methods 0.000 description 3
- 125000005375 organosiloxane group Chemical group 0.000 description 3
- 238000000059 patterning Methods 0.000 description 3
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 3
- XGQJGMGAMHFMAO-UHFFFAOYSA-N 1,3,4,6-tetrakis(methoxymethyl)-3a,6a-dihydroimidazo[4,5-d]imidazole-2,5-dione Chemical compound COCN1C(=O)N(COC)C2C1N(COC)C(=O)N2COC XGQJGMGAMHFMAO-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- WDECIBYCCFPHNR-UHFFFAOYSA-N chrysene Chemical compound C1=CC=CC2=CC=C3C4=CC=CC=C4C=CC3=C21 WDECIBYCCFPHNR-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 230000032050 esterification Effects 0.000 description 2
- 238000005886 esterification reaction Methods 0.000 description 2
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- 125000001046 glycoluril group Chemical class [H]C12N(*)C(=O)N(*)C1([H])N(*)C(=O)N2* 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000012074 organic phase Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 description 2
- 235000012431 wafers Nutrition 0.000 description 2
- MCVVDMSWCQUKEV-UHFFFAOYSA-N (2-nitrophenyl)methyl 4-methylbenzenesulfonate Chemical compound C1=CC(C)=CC=C1S(=O)(=O)OCC1=CC=CC=C1[N+]([O-])=O MCVVDMSWCQUKEV-UHFFFAOYSA-N 0.000 description 1
- DLDWUFCUUXXYTB-UHFFFAOYSA-N (2-oxo-1,2-diphenylethyl) 4-methylbenzenesulfonate Chemical compound C1=CC(C)=CC=C1S(=O)(=O)OC(C=1C=CC=CC=1)C(=O)C1=CC=CC=C1 DLDWUFCUUXXYTB-UHFFFAOYSA-N 0.000 description 1
- NJQJGRGGIUNVAB-UHFFFAOYSA-N 2,4,4,6-tetrabromocyclohexa-2,5-dien-1-one Chemical compound BrC1=CC(Br)(Br)C=C(Br)C1=O NJQJGRGGIUNVAB-UHFFFAOYSA-N 0.000 description 1
- KUMMBDBTERQYCG-UHFFFAOYSA-N 2,6-bis(hydroxymethyl)-4-methylphenol Chemical class CC1=CC(CO)=C(O)C(CO)=C1 KUMMBDBTERQYCG-UHFFFAOYSA-N 0.000 description 1
- NXKOSHBFVWYVIH-UHFFFAOYSA-N 2-n-(butoxymethyl)-1,3,5-triazine-2,4,6-triamine Chemical compound CCCCOCNC1=NC(N)=NC(N)=N1 NXKOSHBFVWYVIH-UHFFFAOYSA-N 0.000 description 1
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 238000003547 Friedel-Crafts alkylation reaction Methods 0.000 description 1
- 238000005727 Friedel-Crafts reaction Methods 0.000 description 1
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 238000010934 O-alkylation reaction Methods 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007171 acid catalysis Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- 238000005804 alkylation reaction Methods 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 229920003180 amino resin Polymers 0.000 description 1
- JCJNNHDZTLRSGN-UHFFFAOYSA-N anthracen-9-ylmethanol Chemical compound C1=CC=C2C(CO)=C(C=CC=C3)C3=CC2=C1 JCJNNHDZTLRSGN-UHFFFAOYSA-N 0.000 description 1
- 150000001454 anthracenes Chemical class 0.000 description 1
- RJGDLRCDCYRQOQ-UHFFFAOYSA-N anthrone Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3CC2=C1 RJGDLRCDCYRQOQ-UHFFFAOYSA-N 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- XOYZYOURGXJJOC-UHFFFAOYSA-N bis(2-tert-butylphenyl)iodanium Chemical compound CC(C)(C)C1=CC=CC=C1[I+]C1=CC=CC=C1C(C)(C)C XOYZYOURGXJJOC-UHFFFAOYSA-N 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229940116333 ethyl lactate Drugs 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 125000005010 perfluoroalkyl group Chemical group 0.000 description 1
- JGTNAGYHADQMCM-UHFFFAOYSA-N perfluorobutanesulfonic acid Chemical compound OS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F JGTNAGYHADQMCM-UHFFFAOYSA-N 0.000 description 1
- IWQPFENGXVKSDO-UHFFFAOYSA-N phenol;2h-thiazine Chemical compound N1SC=CC=C1.OC1=CC=CC=C1 IWQPFENGXVKSDO-UHFFFAOYSA-N 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 150000003460 sulfonic acids Chemical class 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
- ZNOCGWVLWPVKAO-UHFFFAOYSA-N trimethoxy(phenyl)silane Chemical compound CO[Si](OC)(OC)C1=CC=CC=C1 ZNOCGWVLWPVKAO-UHFFFAOYSA-N 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
Classifications
-
- 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
- H01L21/0273—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers characterised by the treatment of photoresist layers
- H01L21/0274—Photolithographic processes
- H01L21/0276—Photolithographic processes using an anti-reflective coating
-
- 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
- G03F7/0381—Macromolecular compounds which are rendered insoluble or differentially wettable using a combination of a phenolic resin and a polyoxyethylene resin
-
- 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
- G03F7/09—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers
- G03F7/091—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers characterised by antireflection means or light filtering or absorbing means, e.g. anti-halation, contrast enhancement
-
- 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
- G03F7/0045—Photosensitive materials with organic non-macromolecular light-sensitive compounds not otherwise provided for, e.g. dissolution inhibitors
-
- 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
- Y10S430/151—Matting or other surface reflectivity altering material
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Materials For Photolithography (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
- Silicon Polymers (AREA)
Description
(a)発色団部分および透明部分を有するSiO含有ポリマーと、
(b)架橋成分と、
(c)酸発生剤と
を含む組成物を包含する。
SiO部分は、シロキサン部分およびシルセスキオキサン部分からなる群から選択されることが好ましい。SiO部分は、ポリマーの主鎖部分にあることが好ましい。SiO含有ポリマーはまた、架橋成分との反応のためにポリマーに沿って分布した複数の反応部位を含むことが好ましい。酸発生剤は、熱で活性化される酸発生剤であることが好ましい。透明部分は、所望のイメージング放射線に対して実質的に透明な、バルキーな(C2以上)部分またはフッ素含有部分であることが好ましい。
(a)基板上に材料層を設けるステップと、
(b)この材料層の上に、本発明の反射防止ハードマスク層を形成するステップと、
(c)この反射防止層の上に放射線感受性イメージング層を形成するステップと、
(d)このイメージング層を放射線にパターン露光させることにより、イメージング層に放射線露光領域のパターンを作るステップと、
(e)イメージング層と反射防止層の部分を選択的に除去して、材料層の部分を露出させるステップと、
(f)この材料層の露出した部分をエッチングすることにより、パターン化材料フィーチャを形成するステップとを含む方法を包含する。
パターン化される材料は、導電性、半導電性、磁性または絶縁性材料であることが好ましく、金属がより好ましい。SiO部分は、ポリマーの主鎖部分にあることが好ましい。SiO含有ポリマーはまた、架橋成分との反応のためにポリマーに沿って分布した複数の反応部位を含むことが好ましい。
(a)発色団部分および透明部分を有するSiO含有ポリマーと、
(b)架橋成分と、
(c)酸発生剤と
を含む。
シリコーン前駆体である3−グリシドキシプロピルトリメトキシシラン(47.26g、200ミリモル)(Aldrichが販売)を、テトラヒドロフラン(THF)100mlに溶解し、次いでTHFと1NHClの混合物によって室温で加水分解した。次いで、反応混合物を18時間還流して完全に加水分解した。室温まで冷却した後、ジエチルエーテル150mlを加え、水相を有機相から分離して捨てた。有機相をブライン(50ml)で2回洗い、硫酸マグネシウムで乾燥し、引き続き真空で溶媒を除去すると透明で粘稠なオイルとしてポリマーが残った。このポリマーを真空下乾燥した。最終収量は約27gであった。この物質をNMRとIRでキャラクタリゼーションしたところ、エポキシ官能基がアルコール官能基に変換されていることが分かった。
シリコーン前駆体であるフェニルトリメトキシシラン(7.92g、40ミリモル)と3−グリシドキシプロピルトリメトキシシラン(37.82g、160ミリモル)(どちらもAldrichが販売)を、ポリマーAについて記載したのと同じように反応させ、最終収量約25gでポリマーを得た。
ポリ(ヒドロキシベンジル)シルセスキオキサン(PHBSQ−DayChemLaboratories in Vandalia, Ohioから入手)
ポリ(1−ヒドロキシ−1−トリフルオロメチルエチル)シルセスキオキサン(TFASSQ)を、2000年12月21日出願の米国特許出願第09/748071号(Substantially Transparent Aqueous Base Soluble Polymer System ForUse In 157 nm Resist Applications)の方法に従って合成した。
所望のSiO含有ポリマー成分を、100重量部の濃度でプロピレングリコールモノメチルエーテルアセテート(PGMEA)に溶解した。この溶液に、DayChem販売の架橋剤テトラメトキシメチルグリコールウリルを8重量部の濃度で加え、かつジ(t−ブチルフェニル)ヨードニウムペルフルオロブチルスルホナート(DtBPI−PFBuS)を4重量部の濃度で加えて、総固形分を14重量%とした。
実施例2に記載のようにして調製した調合物を、3000rpmで60秒間、300mmのシリコン・ウェーハ上にスピン・コートした。膜厚は約2500Åであった。このスピン・キャスト膜を200℃で60秒間硬化させた。n&k Technology、Inc.製造のn&k Analyzerを用いて、光学定数(193nmでの屈折率nおよび吸光係数k)を測定した。
ポリマーBを用いた実施例2に記載の調合物を2つのバッチに分割した。1つのバッチは1ヶ月間−20℃で貯蔵し、もう1つのバッチは1ヶ月間40℃で貯蔵した。それぞれのバッチから実施例3に記載の方法で形成された2つの膜の反射スペクトルは同一であり、調合物が老化していないことを実証した。
ポリマーBを用いて実施例3に記載のようにしてハードマスク層を形成した。アクリル系フォトレジストPAR715(住友が販売)の層を、硬化したハードマスク層の上に約250nmの厚みにスピンコートした。このフォトレジストを130℃で60秒間焼き付けた。次いで、通常および輪帯照明(annular illumination)を有するNA0.6の193nmニコン・ステッパーを用い、APSMレチクルを用いてレジスト層を描画した。パターン露光の後、130℃で60秒間レジストを焼き付けた。次いで、市販の現像液(0.26MのTMAH)を用いて画像を現像した。得られたパターンは、113.75と122.5nmの等しいラインとスペースのパターンを示した。
Claims (9)
- 波長が200nm未満の紫外線又は電子ビームを用いるリソグラフィ・プロセスにおいて使用するスピンオン反射防止ハードマスク層の形成用の組成物であって、
(a)フェニル基、ヒドロキシベンジル基及びヒドロキシメチルベンジル基からなる群より選ばれる発色団と、不飽和炭素−炭素結合のないC2以上の有機部分、エポキシ官能性シルセスキオキサンモノマーから誘導されるアルコール、及びトリフルオロメチル基からなる群より選ばれる透明部分とを備える、ポリオルガノシロキサンと、
(b)別個の架橋成分と、
(c)酸発生剤と
を含む組成物。 - ポリオルガノシロキサンの重量平均分子量が1000〜10000である請求項1記載の組成物。
- 前記ポリオルガノシロキサンが、3−グリシドキシプロピルトリメトキシシランから誘導される重合体、3−グリシドキシプロピルトリメトキシシランとフェニルメトキシシランから誘導される重合体、3−プロパノロキシプロピルシルセスキオキサンとフェニルシルセスキオキサンの共重合体、ポリ(ヒドロキシベンジル)シルセスキオキサンとポリ(1−ヒドロキシ−1−トリフルオロメチルエチル)シルセスキオキサンのブレンド、及び1−ヒドロキシ−1−トリフルオロメチルエチルシルセスキオキサンとp−ヒドロキシメチルベンジルシルセスキオキサンの共重合体から選ばれる少なくとも1種である、請求項1又は2に記載の組成物。
- 前記ポリオルガノシロキサンが、架橋剤成分との反応のためにポリマーに沿って分布した複数の反応部位をさらに含む、請求項1〜3のいずれか1項に記載の組成物。
- 前記反応部位がアルコールまたはエポキシドである、請求項4に記載の組成物。
- 基板上にパターン化材料フィーチャを形成する方法であって、
(a)基板上に材料層を設けるステップと、
(b)前記材料層の上に、請求項1〜5のいずれか1項記載の組成物をスピンコーティングし、該スピンコーティングされた組成物を硬化させてハードマスク層を形成するステップと、
(c)前記ハードマスク層の上に波長が200nm未満の紫外線又は電子ビーム感受性イメージング層を形成するステップと、
(d)前記イメージング層を波長が200nm未満の紫外線又は電子ビームにパターン露光させることにより、前記イメージング層にパターンを作るステップと、
(e)前記イメージング層と前記ハードマスク層の部分を選択的に除去して、前記材料層の部分を露出させるステップと、
(f)前記材料層の前記露出部分をエッチングすることにより、前記パターン化材料フィーチャを形成するステップと
を含む方法。 - 前記紫外線の波長が157nm又は193nmである、請求項6に記載の方法。
- 前記材料層が、誘電体、金属、および半導体からなる群から選択される、請求項6または7に記載の方法。
- 前記ハードマスク層の厚みが約0.02〜5μmである、請求項6〜8のいずれか1項に記載の方法。
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PCT/US2003/010590 WO2003089992A1 (en) | 2002-04-16 | 2003-04-01 | Antireflective sio-containing compositions for hardmask layer |
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JP2547944B2 (ja) * | 1992-09-30 | 1996-10-30 | インターナショナル・ビジネス・マシーンズ・コーポレイション | 二層レジスト組成物を使用する光学リソグラフによりサブ−ハーフミクロンパターンを形成する方法 |
JPH06138664A (ja) * | 1992-10-26 | 1994-05-20 | Mitsubishi Electric Corp | パターン形成方法 |
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TW439117B (en) * | 1999-12-28 | 2001-06-07 | Applied Materials Inc | A method for measuring thickness of layers in chemical mechanic polishing process |
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JP3767676B2 (ja) * | 2000-09-12 | 2006-04-19 | 信越化学工業株式会社 | オルガノシロキサン系高分子化合物及び光硬化性樹脂組成物並びにパターン形成方法及び基板保護用皮膜 |
KR100828313B1 (ko) * | 2000-09-19 | 2008-05-08 | 롬 앤드 하스 일렉트로닉 머트어리얼즈, 엘.엘.씨 | 반사방지 조성물 |
EP1197511A1 (en) * | 2000-10-10 | 2002-04-17 | Shipley Company LLC | Antireflective composition |
-
2002
- 2002-04-16 US US10/124,087 patent/US6730454B2/en not_active Expired - Lifetime
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2003
- 2003-04-01 JP JP2003586669A patent/JP4384919B2/ja not_active Expired - Lifetime
- 2003-04-01 CN CN03807642XA patent/CN1646989B/zh not_active Expired - Lifetime
- 2003-04-01 WO PCT/US2003/010590 patent/WO2003089992A1/en active Application Filing
- 2003-04-01 KR KR1020047014412A patent/KR100910901B1/ko not_active IP Right Cessation
- 2003-04-01 EP EP03723925A patent/EP1495365A4/en not_active Withdrawn
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US6730454B2 (en) | 2004-05-04 |
EP1495365A1 (en) | 2005-01-12 |
CN1646989A (zh) | 2005-07-27 |
TWI268950B (en) | 2006-12-21 |
AU2003230825A1 (en) | 2003-11-03 |
KR20040099326A (ko) | 2004-11-26 |
TW200307014A (en) | 2003-12-01 |
CN1646989B (zh) | 2011-06-01 |
EP1495365A4 (en) | 2009-06-03 |
JP2005523474A (ja) | 2005-08-04 |
WO2003089992A1 (en) | 2003-10-30 |
KR100910901B1 (ko) | 2009-08-05 |
US20030198877A1 (en) | 2003-10-23 |
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