JP6700233B2 - 塩基反応性成分を含む組成物およびフォトリソグラフィーのための方法 - Google Patents
塩基反応性成分を含む組成物およびフォトリソグラフィーのための方法 Download PDFInfo
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- 241000723346 Cinnamomum camphora Species 0.000 description 1
- 241000254173 Coleoptera Species 0.000 description 1
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- PQUCIEFHOVEZAU-UHFFFAOYSA-N Diammonium sulfite Chemical class [NH4+].[NH4+].[O-]S([O-])=O PQUCIEFHOVEZAU-UHFFFAOYSA-N 0.000 description 1
- YXHKONLOYHBTNS-UHFFFAOYSA-N Diazomethane Chemical class C=[N+]=[N-] YXHKONLOYHBTNS-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
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- 229910006069 SO3H Inorganic materials 0.000 description 1
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- DCYQPMGIYRPCBA-UHFFFAOYSA-N [2,3-bis(trifluoromethylsulfonyloxy)phenyl] trifluoromethanesulfonate Chemical compound FC(F)(F)S(=O)(=O)OC1=CC=CC(OS(=O)(=O)C(F)(F)F)=C1OS(=O)(=O)C(F)(F)F DCYQPMGIYRPCBA-UHFFFAOYSA-N 0.000 description 1
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- QFKJMDYQKVPGNM-UHFFFAOYSA-N [benzenesulfonyl(diazo)methyl]sulfonylbenzene Chemical compound C=1C=CC=CC=1S(=O)(=O)C(=[N+]=[N-])S(=O)(=O)C1=CC=CC=C1 QFKJMDYQKVPGNM-UHFFFAOYSA-N 0.000 description 1
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- 150000001334 alicyclic compounds Chemical class 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
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- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- FLJPGEWQYJVDPF-UHFFFAOYSA-L caesium sulfate Chemical compound [Cs+].[Cs+].[O-]S([O-])(=O)=O FLJPGEWQYJVDPF-UHFFFAOYSA-L 0.000 description 1
- 229960000846 camphor Drugs 0.000 description 1
- 229930008380 camphor Natural products 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 150000007942 carboxylates Chemical group 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000994 contrast dye Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000002242 deionisation method Methods 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
- HIJIXCXMVYTMCY-UHFFFAOYSA-N diethyl 2-heptylpropanedioate Chemical compound CCCCCCCC(C(=O)OCC)C(=O)OCC HIJIXCXMVYTMCY-UHFFFAOYSA-N 0.000 description 1
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 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
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- 125000004185 ester group Chemical group 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 125000003709 fluoroalkyl group Chemical group 0.000 description 1
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- 239000007789 gas Substances 0.000 description 1
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- 125000005843 halogen group Chemical group 0.000 description 1
- 125000005842 heteroatom Chemical group 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
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- AQYSYJUIMQTRMV-UHFFFAOYSA-N hypofluorous acid Chemical group FO AQYSYJUIMQTRMV-UHFFFAOYSA-N 0.000 description 1
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- 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
- 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
- 125000006502 nitrobenzyl group Chemical group 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
- 239000003921 oil Substances 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 239000011146 organic particle Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000001782 photodegradation Methods 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
- 229920001296 polysiloxane Polymers 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
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- 229920006009 resin backbone Polymers 0.000 description 1
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- 150000003839 salts Chemical class 0.000 description 1
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- 150000004819 silanols Chemical class 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 150000003459 sulfonic acid esters Chemical class 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 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
- 229920006029 tetra-polymer Polymers 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
- 150000003918 triazines Chemical class 0.000 description 1
- TUODWSVQODNTSU-UHFFFAOYSA-M trifluoromethanesulfonate;tris[4-[(2-methylpropan-2-yl)oxy]phenyl]sulfanium Chemical compound [O-]S(=O)(=O)C(F)(F)F.C1=CC(OC(C)(C)C)=CC=C1[S+](C=1C=CC(OC(C)(C)C)=CC=1)C1=CC=C(OC(C)(C)C)C=C1 TUODWSVQODNTSU-UHFFFAOYSA-M 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
- 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 description 1
- 239000012953 triphenylsulfonium Substances 0.000 description 1
- 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 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
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- 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
-
- 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
- G03F7/038—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
- 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
- G03F7/039—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
- G03F7/0395—Macromolecular compounds which are photodegradable, e.g. positive electron resists the macromolecular compound being present in a chemically amplified positive photoresist composition the macromolecular compound having a backbone with alicyclic moieties
-
- 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
- G03F7/0397—Macromolecular compounds which are photodegradable, e.g. positive electron resists the macromolecular compound being present in a chemically amplified positive photoresist composition the macromolecular compound having an alicyclic moiety in a side chain
-
- 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
- G03F7/26—Processing photosensitive materials; Apparatus therefor
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Materials For Photolithography (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Description
本発明は液浸リソグラフィプロセスにおいて特に有用な新規のフォトレジスト組成物に関する。本発明の好ましいフォトレジスト組成物は塩基反応性基、すなわちレジスト現像工程中にアルカリ水性フォトレジスト現像剤の存在下で開裂反応を受けうる官能基を有する1種以上の材料を含む。
より具体的には、本発明の好ましいフォトレジストは
(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、並びに
(iii)1以上の塩基反応性基を含む1種以上の材料
を含むことができ、塩基反応性基は露光および露光後リソグラフィ処理工程の後で反応性である。好ましくは、塩基反応性基は0.26Nのテトラメチルアンモニウムヒドロキシド水性現像剤組成物のような水性アルカリ現像剤組成物での処理の際に反応性である。好ましくは、塩基反応性基を含むこのような材料は1種以上の樹脂と実質的に非混和性である。
1)248nmでの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系樹脂。この種の特に好ましい樹脂には、以下のものが挙げられる: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、ここにおいて、重合されたアクリル酸アルキル単位は光酸の存在下でデブロッキング(deblocking)反応を受けうる。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が挙げられ、例えば、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、これら文献は参照によって本明細書に組み込まれる:ii)ビニルフェノール、場合によって置換されている(ヒドロキシもしく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)で記載されたデブロッキング基を有する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、米国特許第6,042,997号に記載されたポリマー、この文献は参照によって本明細書に組み込まれる:およびiii)光酸と反応しうるアセタールもしくはケタール部分を含む繰り返し単位、および場合によってフェニルもしく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、米国特許第5,929,176号および第6,090,526号に記載されており、これら文献は参照によって本明細書に組み込まれる:並びにi)および/またはii)および/またはiii)のブレンド。
本発明の他の形態が以下に開示される。
好ましい塩基反応性基には、塩基(例えば、水性アルカリ現像剤組成物)での処理の際に単一のヒドロキシル基を提供できる部分が挙げられる。より具体的には、このような塩基反応性基を含む好適なモノマーには、以下の式(I)のものが挙げられる:
さらなる好ましい塩基反応性基には、塩基(例えば、水性アルカリ現像剤組成物)での処理の際に複数のヒドロキシル基を提供できる部分が挙げられる。より具体的には、このような塩基反応性基を含む好適なモノマーには、以下の式(II)のものが挙げられる:
さらなる好ましい塩基反応性基には、塩基(例えば、水性アルカリ現像剤組成物)での処理の際に1以上のカルボン酸基を提供できる部分が挙げられる。より具体的には、このような塩基反応性基を含む好適なモノマーには、以下の式(III)のものが挙げられる:
以下の実施例においては、モノマー1〜11のいずれかについての言及は保護された形態での先に示されたモノマー構造を含む(すなわち、アルカリ現像剤での後処理の前の構造が示される)。
2)F−NMRで検討して、酸の酸無水物(酸無水物は吸湿性であり、NMR溶媒中で水と反応して低い変換率をもたらす)への90%以上の変換を確認した後で、反応フラスコを冷却した。
3)この混合物にさらに2gの五酸化ニリンを添加し、次いで、真空蒸留を使用して、54〜56℃/28Torrのフラクションを集め、NMRは6.55gの純粋な生成物が63%の収率で得られたことを示した。
2)この反応フラスコを80℃で2時間攪拌した。H−NMRを使用してGMAのピークが残存していないことを確かめた後で、この反応混合物を冷却した。
3)この混合物にさらに30mgのCyanox1790禁止剤を添加し、精製のための真空蒸留を直接行って、96〜97℃/0.7Torrのフラクション7.9gを集めた。
以下は、標記ポリマーの60gのバッチを製造するための実施例である。
1)反応器の準備
磁気攪拌棒および加熱制御熱電対を備えた250mlの3つ口丸底フラスコに30gのプロピレングリコールモノメチルエーテルを入れる。攪拌しつつこの溶液温度を97℃にする。
2)モノマー/開始剤溶液の調製
好適な容器に56.4gのGMA−2233TFPモノマー、3.6gのECPMAモノマーおよび30gのSURFを添加する。この容器を振とうして全ての成分を混合し、次いでそれを氷浴中に配置する。
1.8gの開始剤(Vazo67)を秤量し、それをこの容器に添加する。この容器を振とうして開始剤を溶解させ、次いでそれを氷浴中に配置する。
3)モノマー/開始剤溶液の供給
モノマー/開始剤溶液を、250μl/13秒(すなわち、19.2μl/秒)の供給速度で反応器に供給する。
供給後、反応器温度をさらに2〜3時間の間97℃に維持し続け、次いで反応器を自然に室温まで冷却させる。
示された量で下記材料を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(メタクリル酸2−メチル−2−アダマンチル/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/メタクリル酸シアノ−ノルボルニル)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.実質的に非混和性の添加剤:フォトレジスト組成物の全重量を基準にして0.213重量%の量の、上記実施例1で記載されるように製造された実施例2のポリマー;
5.溶媒成分:約90パーセントの流体組成物を提供するプロピレングリコールモノメチルエーテルアセタート。
このフォトレジスト層は次いで(例えば、約120℃で)露光後ベークされ、そして0.26Nのアルカリ現像剤水溶液で現像される。
露光後ベークの後でかつ現像の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(60秒の漏出時間が試験される)によって評価される。
A.モノマーおよび開始剤混合物:供給バイアルに7.00gのCH3(CH=CH)C(=O)O((CH2)2)O(C=O)CF3(第1のモノマー)、4.80gの(CH2=CH)C(=O)OC(CH(CH3))2C(CH3)3(第2のモノマー)、0.42gのトリグノクス(Trignox)−23(開始剤)および17.0gのPGMEA(溶媒)を秤量する。
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が一定の供給速度、120分間でBに供給される。
D.温度保持:AをBに供給後、反応器の温度がさらに2時間、85℃で維持され、次いで、反応器の温度を自然に室温まで下げた。
反応器からの塩基反応性基を有するこの樹脂は、さらなる精製なしにフォトレジスト組成物に使用されうる。
Claims (14)
- a)(i)1種以上の樹脂
(ii)光活性成分、および
(iii)前記1種以上の樹脂とは異なり、かつ1以上の塩基反応性基を含む1種以上の材料
を含むフォトレジスト組成物を基体上に適用し、ここで、前記塩基反応性基の少なくとも1つは過フッ素化されていない塩基反応性基であり、前記過フッ素化されていない塩基反応性基は、下記モノマー:
b)適用されたフォトレジスト層を前記フォトレジスト組成物を活性化する放射線に液浸露光する
ことを含む、フォトレジスト組成物を処理する方法。 - 前記1種以上の材料(iii)が、前記1種以上の樹脂とは異なり、かつ(A)1以上の塩基反応性基および(B)1以上の塩基反応性基に加えて、これとは異なるヒドロキシル、シアノ、ニトロ、スルホノもしくはスルホキシド基の1以上を含み、前記(A)1以上の塩基反応性基および(B)ヒドロキシル、シアノ、ニトロ、スルホノもしくはスルホキシド基が同じ樹脂繰り返し単位に存在し、並びに前記(A)および(B)を有する前記1種以上の材料(iii)が光酸不安定基を含み、前記光酸不安定基は、光酸発生剤から生成される酸により解離する基である、請求項1に記載の方法。
- 前記(iii)1種以上の材料が、1以上の塩基反応性基に加えて、これとは異なる1以上の酸基を含む、請求項1または2に記載の方法。
- 前記(iii)1種以上の材料が、1以上の塩基反応性基に加えて、これとは異なる1以上の光酸不安定基を含む、請求項1または2に記載の方法。
- 適用中に前記(iii)1種以上の材料がフォトレジスト組成物層の上部に向かって移動する、請求項1〜4のいずれか1項に記載の方法。
- 前記(iii)1種以上の材料が水性アルカリ現像剤と反応してヒドロキシ、カルボキシもしくはスルホン酸基を提供する基を含み、および/または前記(iii)1種以上の材料が1以上のフッ素基もしくはフッ素置換基を含む、請求項1〜5のいずれか1項に記載の方法。
- 前記(iii)1種以上の材料が樹脂である、請求項1〜6のいずれか1項に記載の方法。
- 露光されたフォトレジスト層を水性アルカリ現像剤で現像し、それにより前記1以上の塩基反応性基が結合破壊反応を受けて1以上の極性基を生じさせることをさらに含む、請求項1〜7のいずれか1項に記載の方法。
- 現像前のフォトレジスト層が40°を超える水後退接触角を有し、かつ現像後のフォトレジスト層が30°未満の水後退接触角を有する、請求項8に記載の方法。
- 前記(iii)1種以上の材料が、1以上のヒドロキシル基を含む、請求項1〜9のいずれか1項に記載の方法。
- 前記(iii)1種以上の材料が、1以上のシアノ基を含む、請求項1〜9のいずれか1項に記載の方法。
- 前記(iii)1種以上の材料が、1以上のニトロ基を含む、請求項1〜9のいずれか1項に記載の方法。
- 前記(iii)1種以上の材料が、1以上のスルホノ基を含む、請求項1〜9のいずれか1項に記載の方法。
- 前記(iii)1種以上の材料が、1以上のスルホキシド基を含む、請求項1〜9のいずれか1項に記載の方法。
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JP2018028685A (ja) | 2018-02-22 |
TWI541592B (zh) | 2016-07-11 |
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JP2016066095A (ja) | 2016-04-28 |
EP2453308A1 (en) | 2012-05-16 |
JP6525390B2 (ja) | 2019-06-05 |
KR101979612B1 (ko) | 2019-05-17 |
US11106137B2 (en) | 2021-08-31 |
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JP6271498B2 (ja) | 2018-01-31 |
JP2012113302A (ja) | 2012-06-14 |
KR20120052187A (ko) | 2012-05-23 |
TW201237550A (en) | 2012-09-16 |
CN102540703B (zh) | 2014-10-01 |
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