CN101098954A - 不含氟化物的离子注入光致抗蚀剂去除用超临界流体组合物 - Google Patents

不含氟化物的离子注入光致抗蚀剂去除用超临界流体组合物 Download PDF

Info

Publication number
CN101098954A
CN101098954A CNA2005800118498A CN200580011849A CN101098954A CN 101098954 A CN101098954 A CN 101098954A CN A2005800118498 A CNA2005800118498 A CN A2005800118498A CN 200580011849 A CN200580011849 A CN 200580011849A CN 101098954 A CN101098954 A CN 101098954A
Authority
CN
China
Prior art keywords
scf
composition
resist
ion implantation
photoresist
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2005800118498A
Other languages
English (en)
Chinese (zh)
Inventor
迈克尔·B·克赞斯基
托马斯·H·鲍姆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Advanced Technology Materials Inc
Original Assignee
Advanced Technology Materials Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Advanced Technology Materials Inc filed Critical Advanced Technology Materials Inc
Publication of CN101098954A publication Critical patent/CN101098954A/zh
Pending legal-status Critical Current

Links

Images

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
    • G03F7/26—Processing photosensitive materials; Apparatus therefor
    • G03F7/30—Imagewise removal using liquid means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/0021—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by liquid gases or supercritical fluids
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0042—Reducing agents
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/044—Hydroxides or bases
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/43—Solvents
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/50—Solvents
    • C11D7/5004—Organic solvents
    • 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
    • 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
    • G03F7/40—Treatment after imagewise removal, e.g. baking
    • 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
    • G03F7/42—Stripping or agents therefor
    • G03F7/422—Stripping or agents therefor using liquids only
    • 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
    • G03F7/42—Stripping or agents therefor
    • G03F7/422—Stripping or agents therefor using liquids only
    • G03F7/425—Stripping or agents therefor using liquids only containing mineral alkaline compounds; containing organic basic compounds, e.g. quaternary ammonium compounds; containing heterocyclic basic compounds containing nitrogen
    • 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
    • G03F7/42—Stripping or agents therefor
    • G03F7/422—Stripping or agents therefor using liquids only
    • G03F7/426—Stripping or agents therefor using liquids only containing organic halogen compounds; containing organic sulfonic acids or salts thereof; containing sulfoxides
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/14—Hard surfaces
    • C11D2111/22—Electronic devices, e.g. PCBs or semiconductors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
CNA2005800118498A 2004-04-19 2005-04-12 不含氟化物的离子注入光致抗蚀剂去除用超临界流体组合物 Pending CN101098954A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/827,395 US7557073B2 (en) 2001-12-31 2004-04-19 Non-fluoride containing supercritical fluid composition for removal of ion-implant photoresist
US10/827,395 2004-04-19

Publications (1)

Publication Number Publication Date
CN101098954A true CN101098954A (zh) 2008-01-02

Family

ID=35242115

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2005800118498A Pending CN101098954A (zh) 2004-04-19 2005-04-12 不含氟化物的离子注入光致抗蚀剂去除用超临界流体组合物

Country Status (7)

Country Link
US (1) US7557073B2 (enExample)
EP (1) EP1749087A2 (enExample)
JP (1) JP2007535697A (enExample)
KR (1) KR20060135037A (enExample)
CN (1) CN101098954A (enExample)
TW (1) TW200609347A (enExample)
WO (1) WO2005104682A2 (enExample)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060019850A1 (en) * 2002-10-31 2006-01-26 Korzenski Michael B Removal of particle contamination on a patterned silicon/silicon dioxide using dense fluid/chemical formulations
US8114220B2 (en) * 2005-04-15 2012-02-14 Advanced Technology Materials, Inc. Formulations for cleaning ion-implanted photoresist layers from microelectronic devices
US20090301996A1 (en) * 2005-11-08 2009-12-10 Advanced Technology Materials, Inc. Formulations for removing cooper-containing post-etch residue from microelectronic devices
US8101561B2 (en) 2009-11-17 2012-01-24 Wai Mun Lee Composition and method for treating semiconductor substrate surface
CN101920929A (zh) * 2010-06-30 2010-12-22 上海集成电路研发中心有限公司 半导体悬臂结构的制造方法
CN103068496B (zh) 2010-08-06 2016-04-13 英派尔科技开发有限公司 超临界惰性气体和清洗方法
JP5763766B2 (ja) 2010-08-06 2015-08-12 エンパイア テクノロジー ディベロップメント エルエルシー 超臨界希ガスおよび着色方法
KR101891363B1 (ko) 2010-10-13 2018-08-24 엔테그리스, 아이엔씨. 티타늄 니트라이드 부식을 억제하기 위한 조성물 및 방법
CN103732716B (zh) 2011-09-01 2017-06-06 英派尔科技开发有限公司 使用超临界氩组合物从基岩回收物质的系统、材料和方法
WO2014089196A1 (en) 2012-12-05 2014-06-12 Advanced Technology Materials, Inc. Compositions for cleaning iii-v semiconductor materials and methods of using same
WO2014138064A1 (en) 2013-03-04 2014-09-12 Advanced Technology Materials, Inc. Compositions and methods for selectively etching titanium nitride
JP6723152B2 (ja) 2013-06-06 2020-07-15 インテグリス・インコーポレーテッド 窒化チタンを選択的にエッチングするための組成物及び方法
US10138117B2 (en) 2013-07-31 2018-11-27 Entegris, Inc. Aqueous formulations for removing metal hard mask and post-etch residue with Cu/W compatibility
WO2015031620A1 (en) 2013-08-30 2015-03-05 Advanced Technology Materials, Inc. Compositions and methods for selectively etching titanium nitride
WO2015095175A1 (en) 2013-12-16 2015-06-25 Advanced Technology Materials, Inc. Ni:nige:ge selective etch formulations and method of using same
TWI662379B (zh) 2013-12-20 2019-06-11 美商恩特葛瑞斯股份有限公司 移除離子植入抗蝕劑之非氧化強酸類之用途
US10475658B2 (en) 2013-12-31 2019-11-12 Entegris, Inc. Formulations to selectively etch silicon and germanium
TWI659098B (zh) 2014-01-29 2019-05-11 美商恩特葛瑞斯股份有限公司 化學機械研磨後配方及其使用方法
WO2015119925A1 (en) 2014-02-05 2015-08-13 Advanced Technology Materials, Inc. Non-amine post-cmp compositions and method of use
US20160230080A1 (en) * 2015-02-05 2016-08-11 Esam Z. Hamad Viscous carbon dioxide composition and method of making and using a viscous carbon dioxide composition

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US303450A (en) * 1884-08-12 Roller-skate
US67773A (en) * 1867-08-13 Improvement in cotton-sins
GB1482690A (en) * 1974-12-19 1977-08-10 Coal Ind Hydrogenation of coal
DE3744329A1 (de) * 1987-12-28 1989-07-06 Schwarz Pharma Gmbh Verfahren zur herstellung einer mindestens einen wirkstoff und einen traeger umfassenden zubereitung
US5306350A (en) * 1990-12-21 1994-04-26 Union Carbide Chemicals & Plastics Technology Corporation Methods for cleaning apparatus using compressed fluids
US5565616A (en) * 1994-05-09 1996-10-15 Board Of Regents, The University Of Texas System Controlled hydrothermal processing
WO1996027704A1 (en) 1995-03-06 1996-09-12 Unilever N.V. Dry cleaning system using densified carbon dioxide and a surfactant adjunct
US5783082A (en) 1995-11-03 1998-07-21 University Of North Carolina Cleaning process using carbon dioxide as a solvent and employing molecularly engineered surfactants
US5868862A (en) 1996-08-01 1999-02-09 Texas Instruments Incorporated Method of removing inorganic contamination by chemical alteration and extraction in a supercritical fluid media
JP3594759B2 (ja) 1997-03-19 2004-12-02 株式会社日立製作所 プラズマ処理方法
US6306564B1 (en) 1997-05-27 2001-10-23 Tokyo Electron Limited Removal of resist or residue from semiconductors using supercritical carbon dioxide
US6500605B1 (en) * 1997-05-27 2002-12-31 Tokyo Electron Limited Removal of photoresist and residue from substrate using supercritical carbon dioxide process
US6270531B1 (en) 1997-08-29 2001-08-07 Micell Technologies, Inc. End functionalized polysiloxane surfactants in carbon dioxide formulations
DE19810564A1 (de) * 1998-03-11 1999-09-16 Basf Ag Verfahren zur Trocknung und Herstellung von mikroporösen Teilchen sowie eine Vorrichtung zur Trocknung
WO1999049998A1 (en) * 1998-03-30 1999-10-07 The Regents Of The University Of California Composition and method for removing photoresist materials from electronic components
US6846789B2 (en) * 1998-03-30 2005-01-25 The Regents Of The University Of California Composition and method for removing photoresist materials from electronic components
US6242165B1 (en) 1998-08-28 2001-06-05 Micron Technology, Inc. Supercritical compositions for removal of organic material and methods of using same
US6277753B1 (en) * 1998-09-28 2001-08-21 Supercritical Systems Inc. Removal of CMP residue from semiconductors using supercritical carbon dioxide process
CA2255413A1 (en) 1998-12-11 2000-06-11 Fracmaster Ltd. Foamed nitrogen in liquid co2 for fracturing
US6392070B1 (en) * 1999-08-10 2002-05-21 Regents Of The University Of Minnesota Birch bark processing and the isolation of natural products from birch bark
AU2001255656A1 (en) * 2000-04-25 2001-11-07 Tokyo Electron Limited Method of depositing metal film and metal deposition cluster tool including supercritical drying/cleaning module
JP2004513189A (ja) * 2000-07-17 2004-04-30 ハネウェル・インターナショナル・インコーポレーテッド 担持された触媒系
AU2000266442A1 (en) * 2000-08-14 2002-02-25 Tokyo Electron Limited Removal of photoresist and photoresist residue from semiconductors using supercritical carbon dioxide process
US6740409B1 (en) * 2000-11-15 2004-05-25 Board Of Trustees Of University Of Illinois Polymer films
US6425956B1 (en) * 2001-01-05 2002-07-30 International Business Machines Corporation Process for removing chemical mechanical polishing residual slurry
JP2002237481A (ja) * 2001-02-09 2002-08-23 Kobe Steel Ltd 微細構造体の洗浄方法
US6562146B1 (en) * 2001-02-15 2003-05-13 Micell Technologies, Inc. Processes for cleaning and drying microelectronic structures using liquid or supercritical carbon dioxide
US6398875B1 (en) * 2001-06-27 2002-06-04 International Business Machines Corporation Process of drying semiconductor wafers using liquid or supercritical carbon dioxide
US6838015B2 (en) * 2001-09-04 2005-01-04 International Business Machines Corporation Liquid or supercritical carbon dioxide composition
JP2003117508A (ja) * 2001-10-16 2003-04-22 Mitsubishi Materials Corp 洗浄装置
US6756084B2 (en) * 2002-05-28 2004-06-29 Battelle Memorial Institute Electrostatic deposition of particles generated from rapid expansion of supercritical fluid solutions
DE102004029077B4 (de) * 2003-06-26 2010-07-22 Samsung Electronics Co., Ltd., Suwon Vorrichtung und Verfahren zur Entfernung eines Photoresists von einem Substrat

Also Published As

Publication number Publication date
EP1749087A2 (en) 2007-02-07
KR20060135037A (ko) 2006-12-28
US7557073B2 (en) 2009-07-07
TW200609347A (en) 2006-03-16
WO2005104682A2 (en) 2005-11-10
US20040198622A1 (en) 2004-10-07
JP2007535697A (ja) 2007-12-06
WO2005104682A3 (en) 2007-02-01

Similar Documents

Publication Publication Date Title
CN101098954A (zh) 不含氟化物的离子注入光致抗蚀剂去除用超临界流体组合物
CN1708362A (zh) 光致抗蚀剂去除用超临界二氧化碳/化学制剂
CN100442449C (zh) 半导体工艺中后蚀刻残留物的去除
US7223352B2 (en) Supercritical carbon dioxide/chemical formulation for ashed and unashed aluminum post-etch residue removal
CN103777475B (zh) 清洁制剂
US20090120457A1 (en) Compositions and method for removing coatings and preparation of surfaces for use in metal finishing, and manufacturing of electronic and microelectronic devices
US20040050406A1 (en) Compositions and method for removing photoresist and/or resist residue at pressures ranging from ambient to supercritical
US20050227482A1 (en) Composition useful for removal of bottom anti-reflection coatings from patterned ion-implanted photoresist wafers
JP5346790B2 (ja) フォトレジストパターン除去用組成物及びこれを利用した金属パターンの形成方法
JP2007526653A (ja) 超臨界流体ベースの組成物を用いたケイ素含有粒状物質除去の向上
KR20120106928A (ko) 세정 포뮬레이션 및 세정 포뮬레이션을 사용하는 방법
KR20040027908A (ko) 고압 처리 방법
JP2007536730A (ja) 集積回路製品を製造する間にパターン形成されたウエハーを乾燥させるための組成物及び方法
TWI895669B (zh) 半水基晶圓基底清洗液組合物及其使用方法
KR20090025689A (ko) 초임계이산화탄소 내에서 공용매와 첨가제를 이용하여고이온주입된 포토레지스트의 제거방법
KR20250033251A (ko) 세정 조성물
JP2008243923A (ja) レジストの剥離方法
JP2008066573A (ja) レジストの剥離方法
JP2008071915A (ja) レジストの剥離方法
HK1086783A (en) Supercritical carbon dioxide/chemical formulation for removal of photoresists

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Open date: 20080102