Source: http://www.google.com/patents/US7666569?ie=ISO-8859-1
Timestamp: 2014-09-20 22:26:54
Document Index: 258728212

Matched Legal Cases: ['Application No. 2003', 'Application No. 2004', 'Application No. 2003', 'Application No. 2003', 'Application No. 2004', 'art 1']

Patent US7666569 - Positive resist composition and method for forming resist pattern - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsA positive resist composition including a resin component (A) containing an acid dissociable dissolution inhibiting group whose alkali solubility increases under action of acid and an acid generator component (B) that generates acid on exposure, wherein the resin component (A) is a copolymer comprising...http://www.google.com/patents/US7666569?utm_source=gb-gplus-sharePatent US7666569 - Positive resist composition and method for forming resist patternAdvanced Patent SearchPublication numberUS7666569 B2Publication typeGrantApplication numberUS 10/540,056PCT numberPCT/JP2003/016266Publication dateFeb 23, 2010Filing dateDec 18, 2003Priority dateDec 26, 2002Fee statusPaidAlso published asCN1732409A, CN100576076C, US20060251986, WO2004059392A1Publication number10540056, 540056, PCT/2003/16266, PCT/JP/2003/016266, PCT/JP/2003/16266, PCT/JP/3/016266, PCT/JP/3/16266, PCT/JP2003/016266, PCT/JP2003/16266, PCT/JP2003016266, PCT/JP200316266, PCT/JP3/016266, PCT/JP3/16266, PCT/JP3016266, PCT/JP316266, US 7666569 B2, US 7666569B2, US-B2-7666569, US7666569 B2, US7666569B2InventorsKazufumi Sato, Mitsuo Hagihara, Daisuke KawanaOriginal AssigneeTokyo Ohka Kogyo Co., Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (69), Non-Patent Citations (8), Referenced by (4), Classifications (12), Legal Events (2) External Links: USPTO, USPTO Assignment, EspacenetPositive resist composition and method for forming resist patternUS 7666569 B2Abstract A positive resist composition including a resin component (A) containing an acid dissociable dissolution inhibiting group whose alkali solubility increases under action of acid and an acid generator component (B) that generates acid on exposure, wherein the resin component (A) is a copolymer comprising a first structural unit (a1) derived from a hydroxystyrene and a second structural unit (a2) derived from a (meth)acrylate ester containing an alcoholic hydroxyl group, in which 10 mol % or more and 25 mol % or less of a combined total of hydroxyl groups within the structural units (a1) and alcoholic hydroxyl groups within the structural units (a2) are protected with the acid dissociable dissolution inhibiting groups, and a weight average molecular weight of the copolymer prior to protection with the acid dissociable dissolution inhibiting groups is 2,000 or more and 8,500 or less.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS5942367Apr 23, 1997Aug 24, 1999Shin-Etsu Chemical Co., Ltd.High sensitivity, resolutionUS5976759Dec 19, 1996Nov 2, 1999Wako Pure Chemical Industries, Ltd.Polymer composition and resist materialUS6033826Dec 19, 1996Mar 7, 2000Wako Pure Chemical Industries, Ltd.Polymer and resist materialUS6048661Mar 2, 1998Apr 11, 2000Shin-Etsu Chemical Co., Ltd.Polymer with hydroxy and carboxy groups and ether ester groups for photoresistsUS6143460May 19, 1999Nov 7, 2000Jsr CorporationPhotoacid generator providing improved photoresist resolutionUS6239231Aug 26, 1999May 29, 2001Sumitomo Chemical, Company LimitedHas the polymerization unit of 2-alkyl-2-adamantyl (meth)acrylate and one or both of the polymerization unit of 3-hydroxy-1-adamantyl (meth)acrylate or (meth)acrylonitrile; acid generator; semiconductorsUS6288552Oct 29, 1999Sep 11, 2001Daimlerchrysler CorporationGMR sensor tester for heated window gridsUS6432608Jun 9, 2000Aug 13, 2002Wako Pure Chemical Industries, Ltd.Resist compositionUS6495306Dec 21, 2000Dec 17, 2002Sumitomo Chemical Company, LimitedChemically amplified positive resist compositionUS6495307Feb 26, 2001Dec 17, 2002Sumitomo Chemical Company, LimitedChemically amplified positive resist compositionUS6511785Nov 13, 2000Jan 28, 2003Shin Etsu Chemical Co., Ltd.Chemically amplified positive resist composition and patterning methodUS6593056Mar 22, 2001Jul 15, 2003Shin-Etsu Chemical Co., Ltd.Chemically amplified positive resist composition and patterning methodUS6627381 *Feb 2, 2000Sep 30, 2003Sumitomo Chemical Company, LimitedChemical amplification type positive resist compositionUS6630282Aug 14, 2001Oct 7, 2003Tokyo Ohka Kogyo Co., Ltd.Crosslinked positive-working photoresist compositionUS6656660Jan 27, 2000Dec 2, 2003Sumitomo Chemical Company, LimitedResist compositionUS6723483 *Dec 7, 2000Apr 20, 2004Wako Pure Chemical Industries, Ltd.Sulfonium salt compoundsUS6787282Sep 25, 2002Sep 7, 2004Fuji Photo Film Co., Ltd.An acrylate ester resin that increases a solubility rate in an alkali developing solution by the action of a photoacid generatorUS6846609 *Mar 21, 2001Jan 25, 2005Sumitomo Chemical Company, LimitedMixture of copolymer of hydroxystyrene with hydroxy-1-adamantyl (methy)acrylate and acid generatorsUS6949329Jun 11, 2002Sep 27, 2005Matsushita Electric Industrial Co., Ltd.Photoresist film formed on semiconductor substrate from positive chemically amplified resist material including polyvinylphenol whose soubility in alkaline developer is changed via acid generator such as pentafluorobenzenesulfonateUS7005230 *Jan 16, 2003Feb 28, 2006Jsr CorporationAcrylic resin insoluble in alkali becoming alkalii-soluble by action of an acid on ester groups, a photoacid generator and a polycyclic compound; chemically-amplified photoresist for microfabrication utilizing deep UV rays; radiation transparentUS7312014Jun 21, 2002Dec 25, 2007Wako Pure Chemical Industries Ltd.Poly(p-hydroxystyrene/styrene/alkyl acrylate) terpolymer derivative and acid generator comprising triphenylsulfonium benzenesulfonate derivative; forming positive pattern using transcription technology in high vacuum with irradiated energy such as electron beam, extreme ultraviolet ray and X-rayUS20010044070Apr 3, 2001Nov 22, 2001Yasunori UetaniInterpolymer from alicyclic lactone ester of (meth)acrylic acid; tetrahydrofuranonyl (meth)acrylate; a hydroxyadamantyl (meth)acrylate, or a norbornene and maleic or itaconic anhydride; and another unit (2-ethyl-2-adamantyl acrylate)US20020025495Aug 7, 2001Feb 28, 2002Tokyo Ohka Kogyo Co., LtdPositive resist composition and base material carrying layer of the positive resist compositionUS20020164540 *Feb 28, 2002Nov 7, 2002Junji NakanishiChemical amplifying type positive resist compositionUS20030232273Oct 9, 2002Dec 18, 2003Shipley Company, L.L.C.For imaging short wavelengths; acetal group deblocks in the presence of a photoacid; for example a tetrapolymer of tert-butyl acrylate, p-vinylphenol and its 1-tert-butyoxyethyl ether and 1-(trimethylnorborn-2-yl)oxyethyl etherUS20040033438Sep 24, 2002Feb 19, 2004Takahiro HamadaAlkali-insoluble or slightly soluble resin protected with an acid-labile protecting group, carboxylic acid generating compound, and sulfonic acid generating compoundUS20050031984Oct 29, 2003Feb 10, 2005Sumitomo Chemical Company, LimitedChemical amplification type positive resist compositionUS20050042541Jun 10, 2004Feb 24, 2005Tokyo Ohka Kogyo Co., Ltd.Positive resist composition and method of forming resist patternUS20060247346Apr 15, 2004Nov 2, 2006Takuma Hojohas high etching resistance and attains high resolutionUS20060251986Dec 18, 2003Nov 9, 2006Kazufumi SatoPositive resist composition and method for forming resist patternUS20070042288Apr 22, 2004Feb 22, 2007Takuma HojoPositive photoresist composition and method for forming resist patternEP1357284A1Sep 26, 2001Oct 29, 2003Nok CorporationCombustion gas seal for injector and sealing structure with the combustion gas sealEP1357428A1Apr 24, 2003Oct 29, 2003Nippon Shokubai Co., Ltd.Alcoholic hydroxyl group-, aromatic ring- and protolytically leaving group-containing copolymerGB2356258A Title not availableJP2000026535A Title not availableJP2000086584A Title not availableJP2000188250A Title not availableJP2000214587A Title not availableJP2000356850A Title not availableJP2001056558A Title not availableJP2001142199A Title not availableJP2001166478A Title not availableJP2001274062A Title not availableJP2002055452A Title not availableJP2002062655A Title not availableJP2002062656A Title not availableJP2002241442A Title not availableJP2002287363A Title not availableJP2002323768A Title not availableJP2002373845A Title not availableJP2003075998A Title not availableJP2003107707A Title not availableJP2003107710A Title not availableJP2003295444A Title not availableJP2004012513A Title not availableJP2004078153A Title not availableJP2004333548A Title not availableJP2004333549A Title not availableJPH0669118A Title not availableJPH04211258A Title not availableJPH08254820A Title not availableJPH10142799A Title not availableJPH10306120A Title not availableJPH11109631A Title not availableJPH11119443A Title not availableJPH11168052A Title not availableWO2000046640A1Feb 2, 2000Aug 10, 2000Kamabuchi AkiraPositive resist composition of chemical amplification typeWO2001073512A1Mar 21, 2001Oct 4, 2001Sumitomo Chemical CoChemical amplification type positive resist compositionWO2003007079A1Jun 21, 2002Jan 23, 2003Wako Pure Chem Ind LtdResist compositions* Cited by examinerNon-Patent CitationsReference1Decision to Grant a Patent issued on Aug. 26, 2008 on the counterpart Japanese Application No. 2003-334029 of the related U.S. Appl. No. 10/572,709.2Decision to Grant a Patent issued on the corresponding Japanese Patent Application No. 2004-119494, dated Dec. 16, 2008.3Nakamura et al., "Ultra Thin Film Resist for Low Energy E-beam Projection Lithography", Journal of Photopolymer Science and Technology, vol. 15, No. 3, pp. 417-422, (2002).4Office Action Issued on Feb. 19, 2008, on the Japanese Patent Application No. 2003-334029.5Office Action Issued on Feb. 19, 2008, on the Japanese Patent Application No. 2003-347136.6Office Action Issued on Jul. 1, 2008, on the Japanese Patent Application No. 2004-142581.7Utsumi, "Low-energy E-Beam Proximity Lithography (LEEPL): Is the Simplest the Best?", Japanese Journal of Applied Physics, vol. 38, Part 1, No. 12B, pp. 7046-7051 (1999).8Yoshizawa et al., "Comparative study of resolution limiting factors in electron beam lithography using the edge roughness evaluation method", Journal of Vacuum Science and Technology B, vol. 19, Issue 6, pp. 2488-2493, (2001).Referenced byCiting PatentFiling datePublication dateApplicantTitleUS7914968 *Jun 8, 2007Mar 29, 2011Tokyo Ohka Kogyo Co., Ltd.Positive resist composition and method of forming resist patternUS8541529Apr 24, 2012Sep 24, 2013Tokyo Ohka Kogyo Co., Ltd.Positive resist composition, method of forming resist pattern, and polymeric compoundUS8795947Mar 19, 2013Aug 5, 2014Tokyo Ohka Kogyo Co., Ltd.Resist composition and method of forming resist patternUS8795948Mar 19, 2013Aug 5, 2014Tokyo Ohka Kogyo Co., Ltd.Resist composition, method of forming resist pattern and polymeric compound* Cited by examinerClassifications U.S. Classification430/270.1, 430/905, 430/910International ClassificationG03F7/039, G03F7/00, G03F7/004Cooperative ClassificationY10S430/111, G03F7/0392, Y10S430/106, G03F7/0397European ClassificationG03F7/039C1S, G03F7/039CLegal EventsDateCodeEventDescriptionMar 14, 2013FPAYFee paymentYear of fee payment: 4Jun 22, 2005ASAssignmentOwner name: TOKYO OHKA KOGYO CO., LTD., JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SATO, KAZUFUMI;HAGIHARA, MITSUO;KAWANA, DAISUKE;REEL/FRAME:018124/0765Effective date: 20050615Owner name: TOKYO OHKA KOGYO CO., LTD.,JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SATO, KAZUFUMI;HAGIHARA, MITSUO;KAWANA, DAISUKE;US-ASSIGNMENT DATABASE UPDATED:20100223;REEL/FRAME:18124/765RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google