JP5642958B2 - スルホンアミド物質を含む組成物およびフォトリソグラフィー方法 - Google Patents
スルホンアミド物質を含む組成物およびフォトリソグラフィー方法 Download PDFInfo
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- JP5642958B2 JP5642958B2 JP2009263135A JP2009263135A JP5642958B2 JP 5642958 B2 JP5642958 B2 JP 5642958B2 JP 2009263135 A JP2009263135 A JP 2009263135A JP 2009263135 A JP2009263135 A JP 2009263135A JP 5642958 B2 JP5642958 B2 JP 5642958B2
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- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000010511 deprotection reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- URQUNWYOBNUYJQ-UHFFFAOYSA-N diazonaphthoquinone Chemical compound C1=CC=C2C(=O)C(=[N]=[N])C=CC2=C1 URQUNWYOBNUYJQ-UHFFFAOYSA-N 0.000 description 1
- UMIJUNPUFYIHJW-UHFFFAOYSA-N dicyclohexylazanium;4-methylbenzenesulfonate Chemical compound CC1=CC=C(S([O-])(=O)=O)C=C1.C1CCCCC1[NH2+]C1CCCCC1 UMIJUNPUFYIHJW-UHFFFAOYSA-N 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- WEHWNAOGRSTTBQ-UHFFFAOYSA-N dipropylamine Chemical compound CCCNCCC WEHWNAOGRSTTBQ-UHFFFAOYSA-N 0.000 description 1
- JRBPAEWTRLWTQC-UHFFFAOYSA-N dodecylamine Chemical compound CCCCCCCCCCCCN JRBPAEWTRLWTQC-UHFFFAOYSA-N 0.000 description 1
- ODQWQRRAPPTVAG-GZTJUZNOSA-N doxepin Chemical compound C1OC2=CC=CC=C2C(=C/CCN(C)C)/C2=CC=CC=C21 ODQWQRRAPPTVAG-GZTJUZNOSA-N 0.000 description 1
- 125000006575 electron-withdrawing group Chemical group 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- UHKJHMOIRYZSTH-UHFFFAOYSA-N ethyl 2-ethoxypropanoate Chemical compound CCOC(C)C(=O)OCC UHKJHMOIRYZSTH-UHFFFAOYSA-N 0.000 description 1
- 125000003709 fluoroalkyl group Chemical group 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000004811 fluoropolymer Substances 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 125000001188 haloalkyl group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical class I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- ZHUXMBYIONRQQX-UHFFFAOYSA-N hydroxidodioxidocarbon(.) Chemical group [O]C(O)=O ZHUXMBYIONRQQX-UHFFFAOYSA-N 0.000 description 1
- 125000004356 hydroxy functional group Chemical group O* 0.000 description 1
- AQYSYJUIMQTRMV-UHFFFAOYSA-N hypofluorous acid Chemical group FO AQYSYJUIMQTRMV-UHFFFAOYSA-N 0.000 description 1
- 150000003949 imides Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 125000000468 ketone group Chemical group 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 229940057867 methyl lactate Drugs 0.000 description 1
- 229940017219 methyl propionate Drugs 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000002156 mixing Methods 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
- GNVRJGIVDSQCOP-UHFFFAOYSA-N n-ethyl-n-methylethanamine Chemical compound CCN(C)CC GNVRJGIVDSQCOP-UHFFFAOYSA-N 0.000 description 1
- 239000002101 nanobubble Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000011146 organic particle Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 230000015843 photosynthesis, light reaction Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 229920006009 resin backbone Polymers 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 150000004819 silanols Chemical class 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 150000003440 styrenes Chemical class 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 125000005420 sulfonamido group Chemical group S(=O)(=O)(N*)* 0.000 description 1
- 150000008054 sulfonate salts Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 150000005622 tetraalkylammonium hydroxides Chemical class 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- ODHXBMXNKOYIBV-UHFFFAOYSA-N triphenylamine Chemical compound C1=CC=CC=C1N(C=1C=CC=CC=1)C1=CC=CC=C1 ODHXBMXNKOYIBV-UHFFFAOYSA-N 0.000 description 1
- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 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
- G03F7/20—Exposure; Apparatus therefor
- G03F7/2041—Exposure; Apparatus therefor in the presence of a fluid, e.g. immersion; using fluid cooling 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
-
- 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
-
- 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
- G03F7/0046—Photosensitive materials with perfluoro compounds, e.g. for dry lithography
-
- 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
- G03F7/0048—Photosensitive materials characterised by the solvents or agents facilitating spreading, e.g. tensio-active agents
-
- 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
- G03F7/0382—Macromolecular compounds which are rendered insoluble or differentially wettable the macromolecular compound being present in a chemically amplified negative photoresist composition
-
- 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
-
- 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
-
- 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
- G03F7/20—Exposure; Apparatus therefor
-
- 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
- G03F7/20—Exposure; Apparatus therefor
- G03F7/2002—Exposure; Apparatus therefor with visible light or UV light, through an original having an opaque pattern on a transparent support, e.g. film printing, projection printing; by reflection of visible or UV light from an original such as a printed image
- G03F7/2014—Contact or film exposure of light sensitive plates such as lithographic plates or circuit boards, e.g. in a vacuum frame
- G03F7/2016—Contact mask being integral part of the photosensitive element and subject to destructive removal during post-exposure processing
- G03F7/202—Masking pattern being obtained by thermal means, e.g. laser ablation
Description
好ましいフォトレジスト組成物は、場合によって置換されたスルホンアミド基、例えば、RS(=O)(X)NR’2(Rは非水素置換基、特に−OH(−SO3Hを提供するため)、場合によって置換されたC1−20アルキル、および電子求引基、例えば、ハロゲン、特にフルオロ、またはハロアルキル、例えばフルオロアルキル、例えばF3C−である)などの基を含む1種以上の物質を含むことができる。式RS(=O)(X)NR’2においては、Xはスペーサー(例えば、化学結合または1〜8の炭素鎖)であり、および各R’は独立して水素または非水素置換基、例えば、場合によって置換されたC1−20アルキル、例えば、上記Rについて定義されたような基である。
(i)1種以上の樹脂、
(ii)1種以上の光酸発生剤化合物を好適に含むことができる光活性成分、および
(iii)スルホンアミド置換を含む1種以上の物質(このような物質は、場合によっては、本明細書において、「スルホンアミド置換物質」もしくは「スルホンアミド物質」または他の類似の語句と称される);
を含むことができる。好ましくは、スルホンアミド置換を含む1種以上の物質は1種以上の樹脂と実質的に非混和性である。
1)248nmでの画像形成に特に好適な化学増幅ポジ型レジストを提供できる酸不安定基を含むフェノール樹脂。この種の特に好ましい樹脂には:i)ビニルフェノールおよびアクリル酸アルキルの重合単位を含むポリマーであって、重合されたアクリル酸アルキル単位が光酸の存在下でデブロッキング(deblocking)反応を受けうるポリマー。光酸誘起デブロッキング反応を受けうる代表的なアクリル酸アルキルには、例えば、アクリル酸t−ブチル、メタクリル酸t−ブチル、アクリル酸メチルアダマンチル、メタクリル酸メチルアダマンチル、および光酸誘起反応を受けうる他の非環式アルキルおよび脂環式アクリラート、例えば、参照により本明細書に組み込まれる米国特許第6,042,997号および第5,492,793号におけるポリマーが挙げられる;ii)ビニルフェノール、場合によって置換され、ヒドロキシまたはカルボキシ環置換基を含まないビニルフェニル(例えば、スチレン)、および上記ポリマーi)について記載されるデブロッキング基のもののようなアクリル酸アルキルの重合単位を含むポリマー、例えば、参照により本明細書に組み込まれる米国特許第6,042,997号に記載されるポリマー;並びにiii)光酸と反応できるアセタールまたはケタール部分を含む繰り返し単位を含み、および場合によってフェニルまたはフェノール性基のような芳香族繰り返し単位を含むポリマー;このようなポリマーは参照により本明細書に組み込まれる米国特許第5,929,176号および第6,090,526号に記載されている;並びにi)および/またはii)および/またはiii)のブレンドが挙げられる;
2)酸不安定基を含まないフェノール樹脂、例えば、ポリ(ビニルフェノール)およびノボラック樹脂、これはジアゾナフトキノン光活性化合物と共にI−線およびG−線フォトレジストにおいて使用されることができ、例えば、米国特許第4,983,492号;第5,130,410号;第5,216,111号;および第5,529,880号に記載されている;
3)フェニルまたは他の芳香族基を実質的にまたは完全に含まず、サブ−200nmの波長、例えば、193nmでの画像形成に特に好適な化学増幅ポジ型レジストを提供できる樹脂。特に好ましいこの種の樹脂にはi)非芳香族環式オレフィン(環内二重結合)、例えば、場合によって置換されたノルボルネンの重合単位を含むポリマー、例えば、参照により本明細書に組み込まれる米国特許第5,843,624号および第6,048,664号に記載されたポリマー;ii)アクリル酸アルキル単位、例えば、アクリル酸t−ブチル、メタクリル酸t−ブチル、アクリル酸メチルアダマンチル、メタクリル酸メチルアダマンチル、および他の非環式アルキルおよび脂環式アクリラートを含むポリマー;このようなポリマーは参照により本明細書に組み込まれる米国特許第6,057,083号;欧州特許出願公開第EP01008913A1号およびEP00930542A1号;および米国特許出願第09/143,462号に記載される、並びにiii)重合された酸無水物単位、特に重合された無水マレイン酸および/または無水イタコン酸単位を含むポリマー、例えば、参照により本明細書に組み込まれる欧州特許出願公開第EP01008913A1号および米国特許第6,048,662号に開示されるポリマー;並びにi)および/またはii)および/またはiii)のブレンドが挙げられる;
4)ヘテロ原子、特に酸素および/または硫黄を含む繰り返し単位(ただし、酸無水物は除く、すなわち、この単位はケト環原子を含まない)を含み、かつ望ましくは実質的にまたは完全に芳香族単位を含まない樹脂。好ましくは、ヘテロ脂環式単位はこの樹脂骨格に縮合されており、さらに好ましいのは、樹脂が、ノルボルネン基の重合により提供されるような縮合炭素脂環式単位、および/または無水マレイン酸もしくは無水イタコン酸の重合により提供されるような酸無水物単位を含むものである。このような樹脂は国際出願第PCT/US01/14914号および米国特許出願第09/567,634号に開示されている。
5)ポリ(シルセスキオキサン)をはじめとするSi置換を含み、下塗り層と共に使用されうる樹脂。このような樹脂は米国特許第6,803,171号に開示されている。
6)フッ素置換を含む樹脂(フルオロポリマー)、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、ヘキサフルオロアルコール部分を含む化合物などの重合により提供されうる樹脂。このような樹脂の例は、例えば、国際出願第PCT/US99/21912号に開示されている。
上述のように、特に好ましい本発明のフォトレジストは水性アルカリ現像後の低減された欠点を示すことができる。このような欠点には、現像によりフォトレジストが除かれた領域における低減された有機残留物、およびイメージのレジスト線または他のフィーチャー間の低減されたマイクロ架橋が挙げられうる。
B.反応器:反応器中に30gのPGMEA、85℃に維持する。
C.AをBに供給:Aは一定の供給速度で120分でBに供給される。
D.保持温度:AをBに供給後、反応器の温度はさらに2時間85℃に維持され、次いで、反応器の温度を自然に室温まで冷却させる。
反応器からのスルホンアミド樹脂はさらなる精製なしにフォトレジスト組成物において使用されうる。
実施例1における手順と類似の手順によって、次のスルホンアミド樹脂が製造される:
次の物質を特定された量で混合することにより、フォトレジスト組成物が製造される:
1.樹脂成分:フォトレジスト組成物の全重量を基準にして、6.79重量%の量の(2−メチル−2−アダマンチルメタクリラート/ベータ−ヒドロキシ−ガンマ−ブチロラクトンメタクリラート/シアノ−ノルボルニルメタクリラート)のターポリマー;
2.光酸発生剤化合物:フォトレジスト組成物の全重量を基準にして0.284重量%の量の、t−ブチルフェニルテトラメチレンスルホニウムペルフルオロブタンスルホナート;
3.塩基添加剤:フォトレジスト組成物の全重量を基準にして0.017重量%の量の、N−アルキルカプロラクタム;
4.界面活性剤:フォトレジスト組成物の全重量を基準にして0.0071重量%の量の、R08(フッ素含有界面活性剤、大日本インキ化学工業株式会社から入手可能)。
5.実質的に非混和性の添加剤:上記実施例1に記載されるように製造された実施例1のポリマー、フォトレジスト組成物の全重量を基準にして0.213重量%の量。
6.溶媒成分:プロピレングリコールモノメチルエーテルアセタート、約90パーセント流体組成物を提供する。
フォトレジスト層は、次いで露光後ベーク(例えば、約120℃)され、0.26N水性アルカリ現像液で現像される。
露光後ベークの後で現像前のレジスト成分の漏出を評価するために、液浸流体はレジスト中の光酸およびその光分解副生成物についてLC/質量分析計(60秒の漏出時間が試験される)によって評価される。
Claims (6)
- (a)(i)1種以上の樹脂、
(ii)光活性成分、および
(iii)前記(i)1種以上の樹脂と実質的に非混和性であって、スルホノ部分がスルホンアミド基の窒素から1以上の炭素原子で間隔を開けられているスルホンアミド置換を含む1種以上の樹脂;
を含むフォトレジスト組成物を基体上に適用し;並びに
(b)フォトレジスト組成物を活性化する放射線でフォトレジスト層を液浸露光する;
ことを含む、フォトレジスト組成物を処理する方法。 - 前記(iii)スルホンアミド置換を含む1種以上の樹脂が、1種以上の電子吸引部分をさらに含む、請求項1に記載の方法。
- スルホンアミド置換を含む1種以上の樹脂が、1以上のフッ素基またはフッ素置換基を含む、請求項1に記載の方法。
- スルホンアミド置換を含む1種以上の樹脂が、水性塩基可溶性基および/または1種以上の光酸不安定基を含む、請求項1に記載の方法。
- スルホンアミド置換を含む1種以上の樹脂が、1種以上の光酸不安定基を含む、請求項1に記載の方法。
- (a)(i)1種以上の樹脂、
(ii)光活性成分、並びに
(iii)前記(i)1種以上の樹脂と実質的に非混和性であって、
1)スルホノ部分がスルホンアミド基の窒素から1以上の炭素原子で間隔を開けられているスルホンアミド置換;
2)1以上のフッ素基もしくはフッ素置換基;および、
3)1種以上の光酸不安定基
を含む1種以上の樹脂;
を含むフォトレジスト組成物を基体上に適用し;並びに、
(b)フォトレジスト組成物を活性化する放射線でフォトレジスト層を液浸露光する;
ことを含む、フォトレジスト組成物を処理する方法。
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TWI554841B (zh) | 2007-11-05 | 2016-10-21 | 羅門哈斯電子材料有限公司 | 浸潤式微影組成物及製程 |
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