JP5313452B2 - オーバーコートされるフォトレジストと共に使用するための被覆組成物 - Google Patents
オーバーコートされるフォトレジストと共に使用するための被覆組成物 Download PDFInfo
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- JP5313452B2 JP5313452B2 JP2007018272A JP2007018272A JP5313452B2 JP 5313452 B2 JP5313452 B2 JP 5313452B2 JP 2007018272 A JP2007018272 A JP 2007018272A JP 2007018272 A JP2007018272 A JP 2007018272A JP 5313452 B2 JP5313452 B2 JP 5313452B2
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- GZVHEAJQGPRDLQ-UHFFFAOYSA-N 6-phenyl-1,3,5-triazine-2,4-diamine Chemical compound NC1=NC(N)=NC(C=2C=CC=CC=2)=N1 GZVHEAJQGPRDLQ-UHFFFAOYSA-N 0.000 description 4
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- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 125000001622 2-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C([H])=C(*)C([H])=C([H])C2=C1[H] 0.000 description 1
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- FMFHUEMLVAIBFI-UHFFFAOYSA-N 2-phenylethenyl acetate Chemical compound CC(=O)OC=CC1=CC=CC=C1 FMFHUEMLVAIBFI-UHFFFAOYSA-N 0.000 description 1
- SYIUWAVTBADRJG-UHFFFAOYSA-N 2H-pyran-2,6(3H)-dione Chemical group O=C1CC=CC(=O)O1 SYIUWAVTBADRJG-UHFFFAOYSA-N 0.000 description 1
- QDFXRVAOBHEBGJ-UHFFFAOYSA-N 3-(cyclononen-1-yl)-4,5,6,7,8,9-hexahydro-1h-diazonine Chemical compound C1CCCCCCC=C1C1=NNCCCCCC1 QDFXRVAOBHEBGJ-UHFFFAOYSA-N 0.000 description 1
- WADSJYLPJPTMLN-UHFFFAOYSA-N 3-(cycloundecen-1-yl)-1,2-diazacycloundec-2-ene Chemical compound C1CCCCCCCCC=C1C1=NNCCCCCCCC1 WADSJYLPJPTMLN-UHFFFAOYSA-N 0.000 description 1
- JSGVZVOGOQILFM-UHFFFAOYSA-N 3-methoxy-1-butanol Chemical group COC(C)CCO JSGVZVOGOQILFM-UHFFFAOYSA-N 0.000 description 1
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- 206010001513 AIDS related complex Diseases 0.000 description 1
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- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 241000723346 Cinnamomum camphora Species 0.000 description 1
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- 229910021529 ammonia Inorganic materials 0.000 description 1
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- 238000013459 approach Methods 0.000 description 1
- 238000006664 bond formation reaction Methods 0.000 description 1
- WUIYXNAWOSHQBM-UHFFFAOYSA-N butyl 2-methylprop-2-enoate;1-methylanthracene;2-methylprop-2-enoic acid Chemical compound CC(=C)C(O)=O.CCCCOC(=O)C(C)=C.C1=CC=C2C=C3C(C)=CC=CC3=CC2=C1 WUIYXNAWOSHQBM-UHFFFAOYSA-N 0.000 description 1
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- MIOPJNTWMNEORI-UHFFFAOYSA-N camphorsulfonic acid Chemical group C1CC2(CS(O)(=O)=O)C(=O)CC1C2(C)C MIOPJNTWMNEORI-UHFFFAOYSA-N 0.000 description 1
- 125000001589 carboacyl group Chemical group 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 150000007942 carboxylates Chemical group 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
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- 230000008859 change Effects 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- DOSDTCPDBPRFHQ-UHFFFAOYSA-N dimethyl 5-hydroxybenzene-1,3-dicarboxylate Chemical compound COC(=O)C1=CC(O)=CC(C(=O)OC)=C1 DOSDTCPDBPRFHQ-UHFFFAOYSA-N 0.000 description 1
- NIQCNGHVCWTJSM-UHFFFAOYSA-N dimethyl benzenedicarboxylate Natural products COC(=O)C1=CC=CC=C1C(=O)OC NIQCNGHVCWTJSM-UHFFFAOYSA-N 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- FBSAITBEAPNWJG-UHFFFAOYSA-N dimethyl phthalate Natural products CC(=O)OC1=CC=CC=C1OC(C)=O FBSAITBEAPNWJG-UHFFFAOYSA-N 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 125000004494 ethyl ester group Chemical group 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 229940116333 ethyl lactate Drugs 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
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- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000004811 fluoropolymer Substances 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 125000001046 glycoluril group Chemical group [H]C12N(*)C(=O)N(*)C1([H])N(*)C(=O)N2* 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical class I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000000671 immersion lithography Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical group 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- GXHFUVWIGNLZSC-UHFFFAOYSA-N meldrum's acid Chemical group CC1(C)OC(=O)CC(=O)O1 GXHFUVWIGNLZSC-UHFFFAOYSA-N 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 1
- VLCAYQIMSMPEBW-UHFFFAOYSA-N methyl 3-hydroxy-2-methylidenebutanoate Chemical compound COC(=O)C(=C)C(C)O VLCAYQIMSMPEBW-UHFFFAOYSA-N 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000002950 monocyclic group Chemical group 0.000 description 1
- HEPOEAALKWFVLE-UHFFFAOYSA-N n -((perfluorooctanesulfonyl)oxy)-5-norbornene-2,3-dicarboximide Chemical compound C1=CC2CC1C1C2C(=O)N(OS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F)C1=O HEPOEAALKWFVLE-UHFFFAOYSA-N 0.000 description 1
- 239000002101 nanobubble Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 229920006009 resin backbone Polymers 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 125000005415 substituted alkoxy group Chemical group 0.000 description 1
- 125000000547 substituted alkyl group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 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
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 125000005323 thioketone group Chemical group 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 150000004072 triols Chemical class 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/09—Photosensitive materials characterised by structural details, e.g. supports, auxiliary 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Optics & Photonics (AREA)
- Materials For Photolithography (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
- Paints Or Removers (AREA)
Description
酸素含有量
好ましい下層被覆組成物は、好ましくは、比較的増加された酸素含有量を有する。本発明の好ましい被覆組成物には、被覆組成物の全固形分の合計重量基準で、少なくとも約1、2、3、5、10、15、20又は25重量パーセントの酸素が含有されている。本明細書において言及されるとき、被覆組成物の全固形分は、溶媒担体以外の組成物の全ての物質である。かかる増加された酸素含有量は、種々の方法によって達成することができる。
前述のように、例えば、水接触角は、酸又は塩基での処理によって変えられるような、処理して、異なった水接触角を与えることができる被覆組成物が提供される。
ポジ型及びネガ型フォト酸発生組成物をはじめとする種々のフォトレジスト組成物を、本発明の被覆組成物と共に使用することができる。本発明の反射防止組成物と共に使用されるフォトレジストには、典型的に、樹脂バインダー及び光活性成分、典型的にフォト酸発生剤化合物が含まれる。好ましくは、フォトレジスト樹脂バインダーは、画像形成されたレジスト組成物にアルカリ性水性現像能力を与える官能基を有する。
1)248nmで画像形成するために特に好適な、化学増幅型のポジ型レジストを提供することができる、酸不安定基を含有するフェノール樹脂。この種の特に好ましい樹脂には、i)ビニルフェノール及びアルキルアクリレートの重合した単位を含有するポリマー(ここで、重合したアルキルアクリレート単位は、フォト酸の存在下で脱保護反応を受けることができる)。フォト酸誘起脱保護反応を受けることができる例示的アルキルアクリレートには、例えば、t−ブチルアクリレート、t−ブチルメタクリレート、メチルアダマンチルアクリレート、メチルアダマンチルメタクリレート並びに例えば米国特許第6,042,997号及び米国特許第5,492,793号におけるポリマーのようなフォト酸誘起反応を受けることができる他の非環式アルキル及び脂環式アクリレートが含まれる;ii)ビニルフェノールと、ヒドロキシ若しくはカルボキシ環置換基を含有していない任意に置換されていてもよいビニルフェニル(例えば、スチレン)と、上記のポリマーi)で記載された脱保護基のようなアルキルアクリレートとの重合した単位を含有するポリマー(例えば、米国特許第6,042,997号に記載されているポリマー);並びにiii)フォト酸と反応するアセタール又はケタール部分を含む繰り返し単位及び任意に芳香族(例えばフェニル又はフェノール基)繰り返し単位を含有するポリマー(かかるポリマーは、米国特許第5,929,176号及び米国特許第6,090,526号に記載されている)が含まれる。
2)フェニル又は他の芳香族基を実質的に又は完全に含有せず、200nm未満の波長(例えば193nm)での画像形成のために特に好適な、化学増幅型のポジ型レジストを提供することができる樹脂。この種の特に好ましい樹脂には、i)非芳香族環式オレフィン(環内二重結合)、例えば、任意に置換されていてもよいノルボルネンの重合した単位を含有するポリマー、例えば、米国特許第5,843,624号及び米国特許第6,048,664号に記載されているポリマー;ii)アルキルアクリレート単位、例えば、t−ブチルアクリレート、t−ブチルメタクリレート、メチルアダマンチルアクリレート、メチルアダマンチルメタクリレート並びに他の非環式アルキル及び脂環式アクリレートを含有するポリマー;かかるポリマーは、米国特許第6,057,083号、欧州特許出願公開EP01008913A1号、欧州特許出願公開EP00930542A1号及び米国係属特許出願第09/143,462号に記載されている;iii)重合した無水物単位、特に、重合した無水マレイン酸単位及び/又はイタコン酸無水物単位を含有するポリマー(例えば、欧州特許出願公開第01008913A1号及び米国特許第6,048,662号に開示されている)、が含まれる。
3)ヘテロ原子、特に酸素及び/又は硫黄を含有する繰り返し単位(但し、無水物以外、即ち、ケト環原子を含有しない単位)を含有し、好ましくは如何なる芳香族単位も実質的に又は完全に含有しない樹脂。好ましくは、ヘテロ脂環式単位は、樹脂主鎖に縮合しており、樹脂に、例えばノルボルネン基の重合によってもたらされるような縮合炭素脂環式単位、及び/又は例えば無水マレイン酸若しくはイタコン酸無水物の重合によってもたらされるような無水物単位、が含まれる場合が、更に好ましい。かかる樹脂は、PCT/US01/14914号及び米国特許出願第09/567,634号に開示されている。
4)例えば、テトラフルオロエチレン、フッ素化芳香族群、例えばフルオロスチレン化合物などの重合によってもたらされ得るような、フッ素置換を含有する樹脂(フルオロポリマー)。このような樹脂の例は、例えば、PCT/US99/21912号に開示されている。
使用する際に、本発明の被覆組成物は、例えばスピンコーティングをはじめとする種々の方法の何れかによって、基体に被覆層として適用される。被覆組成物は、一般的に、約0.02〜0.5μmの乾燥層厚さ、好ましくは約0.04〜0.20μmの乾燥層厚さで、基体上に適用される。基体は、好適には、フォトレジストを含むプロセスにおいて使用される任意の基体である。例えば、基体は、ケイ素、二酸化ケイ素又はアルミニウム−酸化アルミニウムマイクロエレクトロニクスウェーハであってよい。ヒ化ガリウム、炭化ケイ素、セラミック、石英又は銅基体も使用することができる。液晶ディスプレイ又は他のフラットパネルディスプレイ用途のための基体、例えば、ガラス基体、酸化インジウムスズ被覆基体なども、好適に使用することができる。光及び光電子デバイス(例えば、導波路)のための基体も、使用することができる。
実施例1:ポリエステル合成
全ての試薬を、最初に、添加順序に殆ど関係なく反応器の中に装入した。装入物:ジメチルテレフタレート(22.3g、115ミリモル)、ジメチル5−ヒドロキシイソフタレート(18.1g、86ミリモル)、1,3,5−トリス(2−ヒドロキシエチル)イソシアヌレート(52.5g、201ミリモル)、2−ヒドロキシイソ酪酸(17.9g、172ミリモル)、p−トルエンスルホン酸(2.1g、11ミリモル)及びアニソール(80g)。反応設定は、機械式攪拌機、温度制御ボックス、温度プローブ、加熱マントル、凝縮器、ディーン・スターク・トラップ及び窒素パージ注入口(掃気)を備えた、250mLの三つ口丸底フラスコからなっていた。この混合物を、最初に実質的な還流(120〜150℃)まで加熱し、次いで徐々に150℃のピーク温度にまで30分以内に加熱した。この温度を、実質的な還流の点から記録された全反応時間が5.25時間に達するまで維持した。次いで、熱源を取り去り、混合物を冷却させた。次いで、冷却した溶液を、THF(355g)で希釈し、IPAの中に沈殿させた。ポリマーを、ブフナー漏斗に通す濾過によって集め、空気乾燥し、次いで真空中で40〜70℃で乾燥した。ポリマー収率は28%であった。分子量をGPCによって決定した。Mw=2840及びMn=2064。
機械式攪拌機、温度制御ボックス、温度プローブ、滴下漏斗、凝縮器及び窒素注入口(ブランケット)を備えた、500mLの三つ口丸底フラスコの中に、t−ブチルメタクリレート(11.90g、83ミリモル)、2−ヒドロキシエチルメタクリレート(19.85g、153ミリモル)、スチレン(6.91g、66ミリモル)、メチルメタクリレート(12.55g、126ミリモル)及びメチル2−ヒドロキシイソブチレート(HBM)(200g)を装入した。滴下漏斗に、HBM(16g)中に溶解したVazo−67(Dupont)(4g)の溶液を装入した。モノマー混合物を攪拌しながら85℃まで加熱し、その後開始剤を添加した。添加の時間を書き留め、混合物を85℃で22時間反応し続けさせた。次いで、熱源を取り去ることによって、反応を熱的にクエンチし、混合物を室温にまで冷却させた。ポリマーを、溶液中に25%固形分で残留させた。分子量をGPCによって決定した。Mw=11010及びMn=4704。
機械式攪拌機、温度制御ボックス、温度プローブ、滴下漏斗、凝縮器及び窒素注入口(ブランケット)を備えた、500mLの三つ口丸底フラスコの中に、n−ブチルメタクリレート(27.20g、192ミリモル)、2−ヒドロキシエチルメタクリレート(9.95g、77ミリモル)、イタコン酸無水物(12.80g、114ミリモル)及びメチル2−ヒドロキシイソブチレート(HBM)(280g)を装入した。滴下漏斗に、HBM(16g)中に溶解したVazo−67(Dupont)(2g)の溶液を装入した。モノマー混合物を攪拌しながら85℃まで加熱し、その後開始剤を添加した。添加の時間を書き留め、混合物を85℃で22時間反応し続けさせた。次いで、熱源を取り去ることによって、反応を熱的にクエンチし、混合物を室温にまで冷却させた。ポリマーを、溶液中に15%固形分で残留させた。分子量をGPCによって決定した。Mw=16258及びMn=6444。
実施例1の一般的手順によって、35:25:20の、反応容器へのモノマー装入のそれぞれのモル比で、ジヒドロピラン(DHP)、メチルアクリレート(MA)及び2−ヒドロキシエチルメタクリレート(HEMA)から、DHP:MA:HEMAターポリマーを得た。
接触角変更
9種の下層被覆組成物(被覆組成物1〜9として以下に参照する)を、下記の表1に説明したような成分を混合することによって製造した。
追加の9種の下層被覆組成物(以下に言及するような実施例14〜20の被覆組成物)を、下記の表3に説明したような成分を混合することによって調製した。
被覆組成物を、下記の材料を混合することによって製造した。
樹脂成分
p−ヒドロキシスチレン/tert−ブチルアクリレートコポリマー、
アントラセンメタクリレート/2−ヒドロキシエチルメタクリレートコポリマー、
架橋剤成分
グリコールウリル樹脂、
メラミン樹脂、
酸源
p−トルエンスルホン酸トリエチルアミン塩、
溶媒
プロピレングリコールメチルエーテル、
プロピレングリコールメチルエーテルアセテート
Claims (4)
- 被覆組成物を基体の上に適用すること、ここで、適用された被覆組成物は異なった水接触角を提供するように処理することができ、被覆組成物層は、(i)酸素含有物質を含む第一成分及び(ii)無水物基を含みかつ第一成分とは異なる別個の第二成分を含む;
フォトレジスト組成物を、該被覆組成物層の上に適用すること;及び
該フォトレジスト層を露光し、現像して、レジストレリーフ画像を得ること
を含む、フォトレジストレリーフ画像の形成方法。 - 適用された被覆組成物がフォトレジスト層からのフォト酸によって処理され、フォト酸に接触する被覆組成物領域の減少した水接触角を提供する、請求項1記載の方法。
- 第一成分が重合したアクリレートエステル単位を含む樹脂を含む請求項1記載の方法。
- 第一成分が3−メトキシ−4−アセトキシスチレン単位、4−ニトロスチレン単位、3−ニトロスチレン単位又は4−ニトロフェニルメタクリレート単位を含む樹脂を含む、請求項1記載の方法。
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