JP6768301B2 - ハードマスク組成物、及びそれを利用したパターンの形成方法 - Google Patents
ハードマスク組成物、及びそれを利用したパターンの形成方法 Download PDFInfo
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- JP6768301B2 JP6768301B2 JP2016015372A JP2016015372A JP6768301B2 JP 6768301 B2 JP6768301 B2 JP 6768301B2 JP 2016015372 A JP2016015372 A JP 2016015372A JP 2016015372 A JP2016015372 A JP 2016015372A JP 6768301 B2 JP6768301 B2 JP 6768301B2
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- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 238000010626 work up procedure Methods 0.000 description 2
- 125000000027 (C1-C10) alkoxy group Chemical group 0.000 description 1
- 125000006832 (C1-C10) alkylene group Chemical group 0.000 description 1
- 125000006757 (C2-C30) heterocyclic group Chemical group 0.000 description 1
- ALRLPDGCPYIVHP-UHFFFAOYSA-N 1-nitropyrene Chemical compound C1=C2C([N+](=O)[O-])=CC=C(C=C3)C2=C2C3=CC=CC2=C1 ALRLPDGCPYIVHP-UHFFFAOYSA-N 0.000 description 1
- 241000009355 Antron Species 0.000 description 1
- 125000000739 C2-C30 alkenyl group Chemical group 0.000 description 1
- CCWKQPXFMZCOTR-UHFFFAOYSA-N CC(CC1)C1(C)N Chemical compound CC(CC1)C1(C)N CCWKQPXFMZCOTR-UHFFFAOYSA-N 0.000 description 1
- QVRBGKYLLCLCHL-UHFFFAOYSA-N CC1C=CC=C1 Chemical compound CC1C=CC=C1 QVRBGKYLLCLCHL-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- JGFDZZLUDWMUQH-UHFFFAOYSA-N Didecyldimethylammonium Chemical compound CCCCCCCCCC[N+](C)(C)CCCCCCCCCC JGFDZZLUDWMUQH-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- HSRJKNPTNIJEKV-UHFFFAOYSA-N Guaifenesin Chemical compound COC1=CC=CC=C1OCC(O)CO HSRJKNPTNIJEKV-UHFFFAOYSA-N 0.000 description 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910016001 MoSe Inorganic materials 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- VCUFZILGIRCDQQ-KRWDZBQOSA-N N-[[(5S)-2-oxo-3-(2-oxo-3H-1,3-benzoxazol-6-yl)-1,3-oxazolidin-5-yl]methyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C1O[C@H](CN1C1=CC2=C(NC(O2)=O)C=C1)CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F VCUFZILGIRCDQQ-KRWDZBQOSA-N 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 239000005456 alcohol based solvent Substances 0.000 description 1
- 125000000304 alkynyl group Chemical group 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 229910052798 chalcogen Inorganic materials 0.000 description 1
- 150000001787 chalcogens Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- YWEUIGNSBFLMFL-UHFFFAOYSA-N diphosphonate Chemical compound O=P(=O)OP(=O)=O YWEUIGNSBFLMFL-UHFFFAOYSA-N 0.000 description 1
- AXZAYXJCENRGIM-UHFFFAOYSA-J dipotassium;tetrabromoplatinum(2-) Chemical compound [K+].[K+].[Br-].[Br-].[Br-].[Br-].[Pt+2] AXZAYXJCENRGIM-UHFFFAOYSA-J 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 238000000313 electron-beam-induced deposition Methods 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 125000001072 heteroaryl group Chemical group 0.000 description 1
- 125000005553 heteroaryloxy group Chemical group 0.000 description 1
- 125000004464 hydroxyphenyl group Chemical group 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000012982 microporous membrane Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- MHWZQNGIEIYAQJ-UHFFFAOYSA-N molybdenum diselenide Chemical compound [Se]=[Mo]=[Se] MHWZQNGIEIYAQJ-UHFFFAOYSA-N 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- 239000002135 nanosheet Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- DLYUQMMRRRQYAE-UHFFFAOYSA-N phosphorus pentoxide Inorganic materials O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 229920000307 polymer substrate Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 229910001487 potassium perchlorate Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 150000003346 selenoethers Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000001476 sodium potassium tartrate Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229910052713 technetium Inorganic materials 0.000 description 1
- GKLVYJBZJHMRIY-UHFFFAOYSA-N technetium atom Chemical compound [Tc] GKLVYJBZJHMRIY-UHFFFAOYSA-N 0.000 description 1
- XSOKHXFFCGXDJZ-UHFFFAOYSA-N telluride(2-) Chemical compound [Te-2] XSOKHXFFCGXDJZ-UHFFFAOYSA-N 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 125000000101 thioether group Chemical group 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- ITRNXVSDJBHYNJ-UHFFFAOYSA-N tungsten disulfide Chemical compound S=[W]=S ITRNXVSDJBHYNJ-UHFFFAOYSA-N 0.000 description 1
- WFGOJOJMWHVMAP-UHFFFAOYSA-N tungsten(iv) telluride Chemical compound [Te]=[W]=[Te] WFGOJOJMWHVMAP-UHFFFAOYSA-N 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 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
- 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
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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
- G03F7/36—Imagewise removal not covered by groups G03F7/30 - G03F7/34, e.g. using gas streams, using plasma
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/194—After-treatment
-
- 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
- G03F7/0017—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor for the production of embossing, cutting or similar devices; for the production of casting means
-
- 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
- G03F7/094—Multilayer resist systems, e.g. planarising layers
-
- 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
- G03F7/11—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers having cover layers or intermediate layers, e.g. subbing layers
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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
- G03F7/16—Coating processes; Apparatus therefor
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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
- G03F7/16—Coating processes; Apparatus therefor
- G03F7/168—Finishing the coated layer, e.g. drying, baking, soaking
-
- 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
- H01L21/033—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers
- H01L21/0332—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers characterised by their composition, e.g. multilayer masks, materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81C—PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS
- B81C2201/00—Manufacture or treatment of microstructural devices or systems
- B81C2201/01—Manufacture or treatment of microstructural devices or systems in or on a substrate
- B81C2201/0101—Shaping material; Structuring the bulk substrate or layers on the substrate; Film patterning
- B81C2201/0128—Processes for removing material
- B81C2201/013—Etching
- B81C2201/0132—Dry etching, i.e. plasma etching, barrel etching, reactive ion etching [RIE], sputter etching or ion milling
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- Architecture (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Nanotechnology (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Materials For Photolithography (AREA)
- Carbon And Carbon Compounds (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
Description
グ ラフェン・ナノパーティクルのサイズが5ないし100nmである場合と、その範囲を外れた場合とにおけるエッジ炭素の含量は、下記表1の通りである。
Rは、前述の基以外に、一般的な感光性官能基でもある。
前述の置換基以外に、感光性官能基でも置換可能である。
Lは、前記化学式2で定義された通りである。
前記化学式でRの結合位置は、制限されるものではない。そして、Rは、便宜上一つを示しているが、置換可能な位置にいずれも置換される。
Lは、単一結合、または置換もしくは非置換のC1−C60アルキレン基で、nは、1ないし5である。
前記ハードマスク組成物は、安定性に非常に優れる。
前記ハードマスクパターン22aをエッチングマスクにして、前記被エッチング膜21をエッチングし、所望する被エッチング膜パターン21aを形成する(図2D)。
グラファイト(Aldrich社)20mgと、酒石酸カリウムナトリウム100mgとをオートクレーブ容器(autoclave vessel)に入れ、それに対して、250℃で60分間反応を実施した。
グラファイト(Alfa Aesar社)20mgを濃硫酸(100ml)に溶解した後、それに対して、1時間ソニケーション(sonication)を実施した。前記結果物に、KMnO4 1gを付加し、反応混合物の温度が約25℃以下になるように調節した。
ピレン2gに硝酸160mlを付加し、それを80℃で約12時間還流し、1,3,6−トリニトロピレンを含む反応混合物を得た。その反応混合物を常温に冷却した後、そこに脱イオン水1lを付加して希釈した後、それに対して、0.22μmの気孔サイズを有する微細多孔性膜で濾過を実施した。
前記製造例1によって得たグラフェン・ナノパーティクル0.5gを水0.1Lに分散させ、ハードマスク組成物を得た。前記ハードマスク組成物に対して、シリコン酸化物が形成されたシリコン基板上にスプレーコーティングを施しながら、200℃で熱処理を実施した。次に、400℃で1時間ベーキングを実施し、厚みが約100nmであるグラフェン・ナノパーティクルを含むハードマスクを形成した。
製造例1によって得たグラフェン・ナノパーティクルの代わりに、製造例2によって得たグラフェン・ナノパーティクルを使用して、400℃でベーキングを実施した後、約600℃で約60分間真空熱処理する過程をさらに実施したことを除いては、実施例1と同一の方法によって実施し、シリコン酸化物パターンが形成されたシリコン基板を製造した。
400℃でベーキングを実施した後、約600℃で約60分間真空熱処理する過程をさらに実施したことを除いては、実施例1と同一の方法によって実施し、シリコン酸化物パターンが形成されたシリコン基板を製造した。
真空熱処理温度が900℃に変化されたことを除いては、実施例3と同一の方法によって実施し、シリコン酸化物パターンが形成されたシリコン基板を製造した。
製造例1によって製造されたグラフェン・ナノパーティクルの代わりに、製造例2によって製造されたグラフェン・ナノパーティクルを使用したことを除いては、実施例1と同一の方法によって実施し、シリコン酸化物パターンが形成されたシリコン基板を製造した。
製造例1によって製造されたグラフェン・ナノパーティクルの代わりに、製造例3によって製造されたグラフェン・ナノパーティクルを使用したことを除いては、実施例1と同一の方法によって実施し、シリコン酸化物パターンが形成されたシリコン基板を製造した。
高温非晶質炭素を含んだハードマスクを利用して、シリコン酸化物パターンが形成されたシリコン基板を次のように製造した。
シリコン酸化物が形成されたシリコン基板上に、炭素源(C3H6)を蒸着し、高温非晶質炭素を含むハードマスクを形成した。
低温非晶質炭素が得られるように、炭素源(C3H6)の蒸着条件を300℃に変化させたことを除いては、比較例1と同様に実施し、低温非晶質炭素を含むハードマスクを利用して、シリコン酸化物パターンが形成されたシリコン基板を得た。
下記化学式1で表示されるモノマーを、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)、メチルピロリドン及びガンマ−ブチロラクトン(gamma-butyrolactone)(40:20:40(v/v/v))の混合溶媒に溶かした後、それを濾過してハードマスク組成物を製造した。
乾式エッチングを施した後で残ったハードマスク及び有機物に対して、O2アッシング工程及びウェットストリップ工程を進め、所望する最終パターンであるシリコン酸化物パターンが形成されたシリコン基板を得た。
硫酸(H2SO4)50mlにグラファイト粉末(graphite powder)10gを入れ、80℃で4〜5時間撹拌した。撹拌された混合物を脱イオン水1lで希釈し、12時間ほど撹拌を実施した。次に、前記結果物を濾過し、前処理されたグラファイトを得た。
実施例1ないし6、比較例1ないし3、及び参考例1によって製造されたハードマスクに対して、約633nmの露光波長で透過率を測定した。
前記実施例1ないし6、及び比較例1ないし3によって製造されたハードマスクを利用して、乾式エッチングを実施する前後のハードマスク、及びシリコン酸化物膜の厚み差を測定し、下記数式1によってエッチング選択比を計算し、耐エッチング性を評価した。
エッチング選択比=(シリコン酸化物のエッチングを実施する以前の厚み−シリコン酸化物のエッチングする以前の厚み)/(ハードマスクのエッチングを実施する以前の厚み−ハードマスクのエッチングを実施した後の厚み)×100
エッチング選択比を下記の表1に示した。
また、実施例2ないし6によって製造されたハードマスクを利用して乾式エッチングを施す前後のハードマスク及びシリコン酸化物膜の厚み差を測定し、エッチング選択比を計算して耐エッチング性を評価した。評価結果、実施例2ないし6の場合は、比較例1-3の場合に比べて耐エッチング性が向上することが分かった。
11,21 被エッチング膜
11A,21A 被エッチング膜パターン
12,22 ハードマスク
12a,22a ハードマスクパターン
13,23 フォトレジスト膜
13a,23a フォトレジストパターン
30 反射防止膜
30a 反射防止膜パターン
32 無機反射防止膜
32a 無機反射防止膜パターン
34 有機反射防止膜
34a 有機反射防止膜パターン
Claims (19)
- 5ないし100nmのサイズを有する複数個のグラフェン・ナノパーティクル及び溶媒を含むハードマスク組成物であって、
前記複数個のグラフェン・ナノパーティクルの、ラマン分光分析によって求められるGモードピークに対するDモードピークの強度比が、2以下であることを特徴とする、ハードマスク組成物。 - 前記複数個のグラフェン・ナノパーティクルのサイズは、5ないし30nmであり、前記複数個のグラフェン・ナノパーティクルの層数は、300層以下であることを特徴とする請求項1に記載のハードマスク組成物。
- 前記複数個のグラフェン・ナノパーティクルの、ラマン分光によって求められるGモードピークに対する2Dモードピークの強度比が、0.01以上であることを特徴とする請求項1に記載のハードマスク組成物。
- 前記複数個のグラフェン・ナノパーティクルのsp2炭素分率が、sp3炭素分率に比べ、1倍以上であることを特徴とする請求項1に記載のハードマスク組成物。
- 前記グラフェン・ナノパーティクルの末端には、ヒドロキシル基、エポキシ基、カルボン酸基、カルボニル基、アミノ基及びイミド基からなる群から選択された1以上の官能基が結合されたことを特徴とする請求項1に記載のハードマスク組成物。
- 第1物質、第2物質またはその混合物をさらに含み、
前記第1物質が芳香族環含有モノマー、及び芳香族環含有モノマーを含む反復単位を含む高分子のうちから選択された一つであり、
前記第2物質は、六方晶系窒化ホウ素、カルコゲナイド系物質、及びその前駆体からなる群から選択された1以上であることを特徴とする請求項1に記載のハードマスク組成物。 - 前記複数個のグラフェン・ナノパーティクルの含量は、ハードマスク組成物の総重量を基準にして、0.1ないし40重量%であることを特徴とする請求項1に記載のハードマスク組成物。
- 前記溶媒が、水、メタノール、イソプロパノール、エタノール、N,N−ジメチルホルムアミド、N−メチルピロリドン、ジクロロエタン、ジクロロベンゼン、N,N−ジメチルスルホキシド、キシレン、アニリン、プロピレングリコール、プロピレングリコールジアセテート、メトキシプロパンジオール、ジエチレングリコール、ガンマブチロラクトン、アセチルアセトン、シクロヘキサノン、プロピレングリコールモノメチルエーテルアセテート、γ−ブチロラクトン、ジクロロエタン、O−ジクロロベンゼン、ニトロメタン、テトラヒドロフラン、ニトロメタン、ジメチルスルホキシド、ニトロベンゼン、亜硝酸ブチル、メチルセロソルブ、エチルセロソルブ、ジエチルエーテル、ジエチレングリコールメチルエーテル、ジエチレングリコールエチルエーテル、ジプロピレングリコールメチルエーテル、トルエン、ヘキサン、メチルエチルケトン、メチルイソケトン、ヒドロキシメチルセルロース及びヘプタンからなる群から選択された1以上であることを特徴とする請求項1に記載のハードマスク組成物。
- 前記芳香族環含有モノマーが、下記化学式1のモノマー、及び下記化学式2のモノマーのうちから選択された1以上であることを特徴とする請求項6に記載のハードマスク組成物:
Lは、リンカーとして単一結合を示すか、置換もしくは非置換のC1−C30アルキレン基、置換もしくは非置換のC2−C30アルケニレン基、置換もしくは非置換のC2−C30アルキニレン基、置換もしくは非置換のC7−C30アリーレンアルキレン基、置換もしくは非置換のC6−C30アリーレン基、置換もしくは非置換のC2−C30ヘテロアリーレン基、置換もしくは非置換のC2−C30ヘテロアリーレンアルキレン基、置換もしくは非置換のC1−C30アルキレンオキシ基、置換もしくは非置換のC7−C30アリーレンアルキレンオキシ基、置換もしくは非置換のC6−C30アリーレンオキシ基、置換もしくは非置換のC2−C30ヘテロアリーレンオキシ基、置換もしくは非置換のC2−C30ヘテロアリーレンアルキレンオキシ基、−C(=O)−及び−SO2−からなる群から選択される。 - 前記芳香族環含有モノマーを含む反復単位を含む高分子が、下記化学式8または9の高分子であることを特徴とする請求項6に記載のハードマスク組成物:
- 基板上に被エッチング膜を形成する段階と、
前記被エッチング膜の上部に、請求項1ないし14のうちいずれか1項に記載のハードマスク組成物を供給し、グラフェン・ナノパーティクルを含むハードマスクを形成する段階と、
前記ハードマスクの上部にフォトレジスト膜を形成する段階と、
前記フォトレジスト膜をエッチングマスクにして、グラフェン・ナノパーティクルをエッチングし、前記被エッチング膜上部に、グラフェン・ナノパーティクルを含むハードマスクパターンを形成する段階と、
前記ハードマスクパターンをエッチングマスクにして、前記被エッチング膜をエッチングする段階と、を含むパターンの形成方法。 - ハードマスクを形成する段階において、前記ハードマスク組成物を被エッチング膜上部に供給する過程中または供給後に、熱処理を実施することを特徴とする請求項15に記載のパターンの形成方法。
- 前記ハードマスクの厚みが10nmないし10,000nmであることを特徴とする請求項16に記載のパターンの形成方法。
- 前記被エッチング膜上部に、前記ハードマスク組成物を供給し、グラフェン・ナノパーティクルを含むハードマスクを形成する段階が、ハードマスク組成物をスピンコーティング、エアスプレー、電気噴霧、ディップコーティング、スプレーコーティング、ドクターブレード法、バーコーティングのうちから選択された一つによって実施されることを特徴とする請求項16に記載のパターンの形成方法。
- 前記ハードマスクは、約633nmの露光波長で、透過率が1%以下であることを特徴とする請求項16に記載のパターンの形成方法。
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