JP3317998B2 - シリカ前駆物質での下地のコーティング方法 - Google Patents

シリカ前駆物質での下地のコーティング方法

Info

Publication number
JP3317998B2
JP3317998B2 JP14267692A JP14267692A JP3317998B2 JP 3317998 B2 JP3317998 B2 JP 3317998B2 JP 14267692 A JP14267692 A JP 14267692A JP 14267692 A JP14267692 A JP 14267692A JP 3317998 B2 JP3317998 B2 JP 3317998B2
Authority
JP
Japan
Prior art keywords
coating
silica
silica precursor
environment
substrate
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.)
Expired - Lifetime
Application number
JP14267692A
Other languages
English (en)
Japanese (ja)
Other versions
JPH05146755A (ja
Inventor
デイビッド・ステファン・バランス
ロバート・チャールズ・カミレッティ
テレサ・アイリーン・ジェントル
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.)
Dow Silicones Corp
Original Assignee
Dow Corning Corp
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 Dow Corning Corp filed Critical Dow Corning Corp
Publication of JPH05146755A publication Critical patent/JPH05146755A/ja
Application granted granted Critical
Publication of JP3317998B2 publication Critical patent/JP3317998B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5025Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
    • C04B41/5035Silica
    • H10P14/6681
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/1204Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
    • C23C18/1208Oxides, e.g. ceramics
    • C23C18/1212Zeolites, glasses
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/1204Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
    • C23C18/122Inorganic polymers, e.g. silanes, polysilazanes, polysiloxanes
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/125Process of deposition of the inorganic material
    • C23C18/1275Process of deposition of the inorganic material performed under inert atmosphere
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/125Process of deposition of the inorganic material
    • C23C18/1279Process of deposition of the inorganic material performed under reactive atmosphere, e.g. oxidising or reducing atmospheres
    • H10P14/6529
    • H10P14/6925
    • H10P95/90
    • H10P14/6342
    • H10P14/6686
    • H10P14/6922

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Formation Of Insulating Films (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
  • Liquid Deposition Of Substances Of Which Semiconductor Devices Are Composed (AREA)
JP14267692A 1991-06-05 1992-06-03 シリカ前駆物質での下地のコーティング方法 Expired - Lifetime JP3317998B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/710,627 US5145723A (en) 1991-06-05 1991-06-05 Process for coating a substrate with silica
US07/710627 1991-06-05

Publications (2)

Publication Number Publication Date
JPH05146755A JPH05146755A (ja) 1993-06-15
JP3317998B2 true JP3317998B2 (ja) 2002-08-26

Family

ID=24854848

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14267692A Expired - Lifetime JP3317998B2 (ja) 1991-06-05 1992-06-03 シリカ前駆物質での下地のコーティング方法

Country Status (8)

Country Link
US (1) US5145723A (enExample)
EP (1) EP0517475B1 (enExample)
JP (1) JP3317998B2 (enExample)
KR (1) KR100289850B1 (enExample)
CA (1) CA2069521A1 (enExample)
DE (1) DE69232607T2 (enExample)
ES (1) ES2176184T3 (enExample)
TW (1) TW237560B (enExample)

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5445894A (en) * 1991-04-22 1995-08-29 Dow Corning Corporation Ceramic coatings
US5436029A (en) * 1992-07-13 1995-07-25 Dow Corning Corporation Curing silicon hydride containing materials by exposure to nitrous oxide
CA2104340A1 (en) * 1992-08-31 1994-03-01 Grish Chandra Hermetic protection for integrated circuits
JP3174416B2 (ja) * 1992-12-10 2001-06-11 ダウ・コ−ニング・コ−ポレ−ション 酸化ケイ素膜の形成方法
JP3174417B2 (ja) * 1992-12-11 2001-06-11 ダウ・コ−ニング・コ−ポレ−ション 酸化ケイ素膜の形成方法
JP3210457B2 (ja) * 1992-12-14 2001-09-17 ダウ・コ−ニング・コ−ポレ−ション 酸化ケイ素膜の形成方法
US5258334A (en) * 1993-01-15 1993-11-02 The U.S. Government As Represented By The Director, National Security Agency Process of preventing visual access to a semiconductor device by applying an opaque ceramic coating to integrated circuit devices
US5380555A (en) * 1993-02-09 1995-01-10 Dow Corning Toray Silicone Co., Ltd. Methods for the formation of a silicon oxide film
US5591680A (en) * 1993-12-06 1997-01-07 Micron Communications Formation methods of opaque or translucent films
WO1995017006A1 (en) * 1993-12-13 1995-06-22 National Semiconductor Corporation A method of planarizing a dielectric layer of an integrated circuit
WO1995018190A1 (fr) * 1993-12-27 1995-07-06 Kawasaki Steel Corporation Film isolant pour dispositifs a semi-conducteurs, fluide de revetement utilise pour former le film et procede de production dudit film
JP2751820B2 (ja) * 1994-02-28 1998-05-18 日本電気株式会社 半導体装置の製造方法
US5456952A (en) * 1994-05-17 1995-10-10 Lsi Logic Corporation Process of curing hydrogen silsesquioxane coating to form silicon oxide layer
JP3149739B2 (ja) * 1995-07-14 2001-03-26 ヤマハ株式会社 多層配線形成法
JP3070450B2 (ja) * 1995-07-14 2000-07-31 ヤマハ株式会社 多層配線形成法
US5814397A (en) * 1995-09-13 1998-09-29 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method for waterproofing ceramic materials
JPH09260384A (ja) * 1995-10-03 1997-10-03 Texas Instr Inc <Ti> 平坦な誘電体層の形成方法および多層配線パターン
US5609925A (en) * 1995-12-04 1997-03-11 Dow Corning Corporation Curing hydrogen silsesquioxane resin with an electron beam
US5707683A (en) * 1996-02-22 1998-01-13 Dow Corning Corporation Electronic coating composition method of coating an electronic substrate, composition and article
US5837603A (en) * 1996-05-08 1998-11-17 Harris Corporation Planarization method by use of particle dispersion and subsequent thermal flow
US5780163A (en) * 1996-06-05 1998-07-14 Dow Corning Corporation Multilayer coating for microelectronic devices
US6114186A (en) * 1996-07-30 2000-09-05 Texas Instruments Incorporated Hydrogen silsesquioxane thin films for low capacitance structures in integrated circuits
US6020410A (en) * 1996-10-29 2000-02-01 Alliedsignal Inc. Stable solution of a silsesquioxane or siloxane resin and a silicone solvent
JP3123449B2 (ja) * 1996-11-01 2001-01-09 ヤマハ株式会社 多層配線形成法
JP3082688B2 (ja) * 1996-11-05 2000-08-28 ヤマハ株式会社 配線形成法
DE69728999T2 (de) * 1996-11-11 2005-04-28 Catalysts & Chemicals Industries Co. Ltd., Kawasaki Substratglättungsverfahren
JP3225872B2 (ja) 1996-12-24 2001-11-05 ヤマハ株式会社 酸化シリコン膜形成法
JPH10247686A (ja) * 1996-12-30 1998-09-14 Yamaha Corp 多層配線形成法
US5707681A (en) * 1997-02-07 1998-01-13 Dow Corning Corporation Method of producing coatings on electronic substrates
US6043330A (en) * 1997-04-21 2000-03-28 Alliedsignal Inc. Synthesis of siloxane resins
US6143855A (en) * 1997-04-21 2000-11-07 Alliedsignal Inc. Organohydridosiloxane resins with high organic content
US6218497B1 (en) 1997-04-21 2001-04-17 Alliedsignal Inc. Organohydridosiloxane resins with low organic content
US6743856B1 (en) 1997-04-21 2004-06-01 Honeywell International Inc. Synthesis of siloxane resins
US6015457A (en) * 1997-04-21 2000-01-18 Alliedsignal Inc. Stable inorganic polymers
US5866197A (en) * 1997-06-06 1999-02-02 Dow Corning Corporation Method for producing thick crack-free coating from hydrogen silsequioxane resin
TW392288B (en) 1997-06-06 2000-06-01 Dow Corning Thermally stable dielectric coatings
US6114219A (en) * 1997-09-15 2000-09-05 Advanced Micro Devices, Inc. Method of manufacturing an isolation region in a semiconductor device using a flowable oxide-generating material
TW354417B (en) * 1997-10-18 1999-03-11 United Microelectronics Corp A method for forming a planarized dielectric layer
US6087724A (en) * 1997-12-18 2000-07-11 Advanced Micro Devices, Inc. HSQ with high plasma etching resistance surface for borderless vias
US6018002A (en) * 1998-02-06 2000-01-25 Dow Corning Corporation Photoluminescent material from hydrogen silsesquioxane resin
US6218020B1 (en) 1999-01-07 2001-04-17 Alliedsignal Inc. Dielectric films from organohydridosiloxane resins with high organic content
US6177199B1 (en) 1999-01-07 2001-01-23 Alliedsignal Inc. Dielectric films from organohydridosiloxane resins with low organic content
US6420278B1 (en) * 1998-06-12 2002-07-16 Advanced Micro Devices, Inc. Method for improving the dielectric constant of silicon-based semiconductor materials
US5935638A (en) * 1998-08-06 1999-08-10 Dow Corning Corporation Silicon dioxide containing coating
US6177143B1 (en) 1999-01-06 2001-01-23 Allied Signal Inc Electron beam treatment of siloxane resins
US6472076B1 (en) 1999-10-18 2002-10-29 Honeywell International Inc. Deposition of organosilsesquioxane films
US6440550B1 (en) * 1999-10-18 2002-08-27 Honeywell International Inc. Deposition of fluorosilsesquioxane films
US6558755B2 (en) 2000-03-20 2003-05-06 Dow Corning Corporation Plasma curing process for porous silica thin film
US6576300B1 (en) * 2000-03-20 2003-06-10 Dow Corning Corporation High modulus, low dielectric constant coatings
JP3435136B2 (ja) * 2000-05-16 2003-08-11 日本板硝子株式会社 基材の親水化処理方法
JP3913638B2 (ja) * 2001-09-03 2007-05-09 東京エレクトロン株式会社 熱処理方法及び熱処理装置
KR100466162B1 (ko) * 2002-03-22 2005-01-13 (주)아이테크 금속 절연 기판의 제조 방법
US8118722B2 (en) * 2003-03-07 2012-02-21 Neuronetics, Inc. Reducing discomfort caused by electrical stimulation
US7153256B2 (en) * 2003-03-07 2006-12-26 Neuronetics, Inc. Reducing discomfort caused by electrical stimulation
US20050215713A1 (en) * 2004-03-26 2005-09-29 Hessell Edward T Method of producing a crosslinked coating in the manufacture of integrated circuits
US8323731B2 (en) * 2005-05-27 2012-12-04 The Governors Of The University Of Alberta Method for preparing nanocrystalline silicon in SiO2 and freestanding silicon nanoparticles
JP2008547194A (ja) * 2005-06-15 2008-12-25 ダウ・コーニング・コーポレイション 水素シルセスキオキサンを硬化させていき、ナノスケールのトレンチ中において密にさせる方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4670299A (en) 1984-11-01 1987-06-02 Fujitsu Limited Preparation of lower alkyl polysilsesquioxane and formation of insulating layer of silylated polymer on electronic circuit board

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3556841A (en) * 1967-04-11 1971-01-19 Matsushita Electronics Corp Process for forming silicon dioxide films
US4708945A (en) * 1985-12-31 1987-11-24 Exxon Research And Engineering Company Catalysts comprising silica supported on a boehmite-like surface, their preparation and use
US4756977A (en) * 1986-12-03 1988-07-12 Dow Corning Corporation Multilayer ceramics from hydrogen silsesquioxane
US4749631B1 (en) * 1986-12-04 1993-03-23 Multilayer ceramics from silicate esters

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4670299A (en) 1984-11-01 1987-06-02 Fujitsu Limited Preparation of lower alkyl polysilsesquioxane and formation of insulating layer of silylated polymer on electronic circuit board

Also Published As

Publication number Publication date
JPH05146755A (ja) 1993-06-15
DE69232607T2 (de) 2002-12-05
TW237560B (enExample) 1995-01-01
KR100289850B1 (ko) 2001-06-01
KR930001757A (ko) 1993-01-16
EP0517475A2 (en) 1992-12-09
DE69232607D1 (de) 2002-06-20
EP0517475B1 (en) 2002-05-15
US5145723A (en) 1992-09-08
CA2069521A1 (en) 1992-12-06
EP0517475A3 (en) 1993-09-29
ES2176184T3 (es) 2002-12-01

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