DE69941415D1 - Vertikaler Leistungs-MOSFET mit Graben-Gate, Streifengeometrie und hoher Zelldichte - Google Patents
Vertikaler Leistungs-MOSFET mit Graben-Gate, Streifengeometrie und hoher ZelldichteInfo
- Publication number
- DE69941415D1 DE69941415D1 DE69941415T DE69941415T DE69941415D1 DE 69941415 D1 DE69941415 D1 DE 69941415D1 DE 69941415 T DE69941415 T DE 69941415T DE 69941415 T DE69941415 T DE 69941415T DE 69941415 D1 DE69941415 D1 DE 69941415D1
- Authority
- DE
- Germany
- Prior art keywords
- cell density
- power mosfet
- trench gate
- high cell
- vertical power
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/7801—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
- H01L29/7802—Vertical DMOS transistors, i.e. VDMOS transistors
- H01L29/7813—Vertical DMOS transistors, i.e. VDMOS transistors with trench gate electrode, e.g. UMOS transistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/0203—Particular design considerations for integrated circuits
- H01L27/0248—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection
- H01L27/0251—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices
- H01L27/0255—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices using diodes as protective elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
- H01L27/06—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration
- H01L27/07—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration the components having an active region in common
- H01L27/0705—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration the components having an active region in common comprising components of the field effect type
- H01L27/0727—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration the components having an active region in common comprising components of the field effect type in combination with diodes, or capacitors or resistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
- H01L29/0684—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions characterised by the shape, relative sizes or dispositions of the semiconductor regions or junctions between the regions
- H01L29/0692—Surface layout
- H01L29/0696—Surface layout of cellular field-effect devices, e.g. multicellular DMOS transistors or IGBTs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
- H01L29/10—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions with semiconductor regions connected to an electrode not carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- H01L29/1095—Body region, i.e. base region, of DMOS transistors or IGBTs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/7801—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
- H01L29/7802—Vertical DMOS transistors, i.e. VDMOS transistors
- H01L29/7803—Vertical DMOS transistors, i.e. VDMOS transistors structurally associated with at least one other device
- H01L29/7808—Vertical DMOS transistors, i.e. VDMOS transistors structurally associated with at least one other device the other device being a breakdown diode, e.g. Zener diode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/7827—Vertical transistors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Electrodes Of Semiconductors (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/089,250 US6204533B1 (en) | 1995-06-02 | 1998-06-02 | Vertical trench-gated power MOSFET having stripe geometry and high cell density |
Publications (1)
Publication Number | Publication Date |
---|---|
DE69941415D1 true DE69941415D1 (de) | 2009-10-29 |
Family
ID=22216558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69941415T Expired - Lifetime DE69941415D1 (de) | 1998-06-02 | 1999-05-27 | Vertikaler Leistungs-MOSFET mit Graben-Gate, Streifengeometrie und hoher Zelldichte |
Country Status (6)
Country | Link |
---|---|
US (1) | US6204533B1 (de) |
EP (1) | EP0962987B1 (de) |
JP (1) | JP4671456B2 (de) |
KR (1) | KR100429475B1 (de) |
DE (1) | DE69941415D1 (de) |
TW (1) | TW486728B (de) |
Families Citing this family (56)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6429481B1 (en) | 1997-11-14 | 2002-08-06 | Fairchild Semiconductor Corporation | Field effect transistor and method of its manufacture |
KR20030077299A (ko) * | 2002-03-26 | 2003-10-01 | 주식회사 하이닉스반도체 | 에스오아이 반도체소자의 제조 방법 |
DE10245249B4 (de) | 2002-09-27 | 2008-05-08 | Infineon Technologies Ag | Verfahren zum Herstellen eines Trenchtransistors |
US6867083B2 (en) * | 2003-05-01 | 2005-03-15 | Semiconductor Components Industries, Llc | Method of forming a body contact of a transistor and structure therefor |
US7091565B2 (en) * | 2003-10-22 | 2006-08-15 | Marvell World Trade Ltd. | Efficient transistor structure |
US7851872B2 (en) * | 2003-10-22 | 2010-12-14 | Marvell World Trade Ltd. | Efficient transistor structure |
US7960833B2 (en) * | 2003-10-22 | 2011-06-14 | Marvell World Trade Ltd. | Integrated circuits and interconnect structure for integrated circuits |
JP4059846B2 (ja) * | 2003-12-26 | 2008-03-12 | Necエレクトロニクス株式会社 | 半導体装置及びその製造方法 |
DE102004029297A1 (de) * | 2004-04-20 | 2005-11-17 | Infineon Technologies Ag | Vertikaler Feldeffekt-Leistungstransistor und Verfahren zur Herstellung |
JP2006012967A (ja) * | 2004-06-23 | 2006-01-12 | Toshiba Corp | 半導体装置 |
CN100421233C (zh) * | 2004-09-22 | 2008-09-24 | 台湾茂矽电子股份有限公司 | 一种集成电路的制作方法及结构 |
US7138315B2 (en) * | 2004-10-14 | 2006-11-21 | Semiconductor Components Industries, L.L.C. | Low thermal resistance semiconductor device and method therefor |
US7022564B1 (en) | 2004-10-14 | 2006-04-04 | Semiconductor Components Industries, L.L.C. | Method of forming a low thermal resistance device and structure |
JP2006228906A (ja) * | 2005-02-16 | 2006-08-31 | Sanyo Electric Co Ltd | 半導体装置およびその製造方法 |
JP2007081229A (ja) * | 2005-09-15 | 2007-03-29 | Matsushita Electric Ind Co Ltd | 半導体装置 |
JP5168876B2 (ja) * | 2006-10-17 | 2013-03-27 | 富士電機株式会社 | 半導体装置およびその製造方法 |
US9437729B2 (en) * | 2007-01-08 | 2016-09-06 | Vishay-Siliconix | High-density power MOSFET with planarized metalization |
US7468536B2 (en) * | 2007-02-16 | 2008-12-23 | Power Integrations, Inc. | Gate metal routing for transistor with checkerboarded layout |
US8653583B2 (en) | 2007-02-16 | 2014-02-18 | Power Integrations, Inc. | Sensing FET integrated with a high-voltage transistor |
US7859037B2 (en) * | 2007-02-16 | 2010-12-28 | Power Integrations, Inc. | Checkerboarded high-voltage vertical transistor layout |
US7557406B2 (en) * | 2007-02-16 | 2009-07-07 | Power Integrations, Inc. | Segmented pillar layout for a high-voltage vertical transistor |
US7595523B2 (en) | 2007-02-16 | 2009-09-29 | Power Integrations, Inc. | Gate pullback at ends of high-voltage vertical transistor structure |
US9947770B2 (en) * | 2007-04-03 | 2018-04-17 | Vishay-Siliconix | Self-aligned trench MOSFET and method of manufacture |
JP2009076540A (ja) * | 2007-09-19 | 2009-04-09 | Nec Electronics Corp | 半導体装置 |
US9484451B2 (en) | 2007-10-05 | 2016-11-01 | Vishay-Siliconix | MOSFET active area and edge termination area charge balance |
US8017995B2 (en) | 2007-11-20 | 2011-09-13 | International Business Machines Corporation | Deep trench semiconductor structure and method |
JP2009170629A (ja) * | 2008-01-16 | 2009-07-30 | Nec Electronics Corp | 半導体装置の製造方法 |
JP5335914B2 (ja) | 2009-06-29 | 2013-11-06 | 富士通株式会社 | 半導体装置およびその製造方法 |
US9443974B2 (en) | 2009-08-27 | 2016-09-13 | Vishay-Siliconix | Super junction trench power MOSFET device fabrication |
JP2011091086A (ja) * | 2009-10-20 | 2011-05-06 | Mitsubishi Electric Corp | 半導体装置 |
US9431530B2 (en) * | 2009-10-20 | 2016-08-30 | Vishay-Siliconix | Super-high density trench MOSFET |
US8377756B1 (en) * | 2011-07-26 | 2013-02-19 | General Electric Company | Silicon-carbide MOSFET cell structure and method for forming same |
JP5920970B2 (ja) | 2011-11-30 | 2016-05-24 | ローム株式会社 | 半導体装置 |
US9842911B2 (en) | 2012-05-30 | 2017-12-12 | Vishay-Siliconix | Adaptive charge balanced edge termination |
CN103117308A (zh) * | 2013-02-07 | 2013-05-22 | 上海新进半导体制造有限公司 | 一种沟槽mosfet功率整流器件及其制造方法 |
US9543396B2 (en) | 2013-12-13 | 2017-01-10 | Power Integrations, Inc. | Vertical transistor device structure with cylindrically-shaped regions |
US10325988B2 (en) | 2013-12-13 | 2019-06-18 | Power Integrations, Inc. | Vertical transistor device structure with cylindrically-shaped field plates |
US10608104B2 (en) | 2014-03-28 | 2020-03-31 | Infineon Technologies Ag | Trench transistor device |
US9887259B2 (en) | 2014-06-23 | 2018-02-06 | Vishay-Siliconix | Modulated super junction power MOSFET devices |
US9882044B2 (en) | 2014-08-19 | 2018-01-30 | Vishay-Siliconix | Edge termination for super-junction MOSFETs |
WO2016028943A1 (en) | 2014-08-19 | 2016-02-25 | Vishay-Siliconix | Electronic circuit |
DE102014117780B4 (de) | 2014-12-03 | 2018-06-21 | Infineon Technologies Ag | Halbleiterbauelement mit einer Grabenelektrode und Verfahren zur Herstellung |
US9716144B2 (en) * | 2014-12-19 | 2017-07-25 | General Electric Company | Semiconductor devices having channel regions with non-uniform edge |
DE102014119465B3 (de) | 2014-12-22 | 2016-05-25 | Infineon Technologies Ag | Halbleitervorrichtung mit streifenförmigen trenchgatestrukturen, transistormesas und diodenmesas |
CN106537603B (zh) | 2015-02-16 | 2019-12-13 | 富士电机株式会社 | 半导体装置和半导体装置的制造方法 |
DE102015215024B4 (de) * | 2015-08-06 | 2019-02-21 | Infineon Technologies Ag | Halbleiterbauelement mit breiter Bandlücke und Verfahren zum Betrieb eines Halbleiterbauelements |
JP6958011B2 (ja) * | 2017-06-15 | 2021-11-02 | 富士電機株式会社 | 半導体装置および半導体装置の製造方法 |
US10497777B2 (en) * | 2017-09-08 | 2019-12-03 | Hestia Power Inc. | Semiconductor power device |
DE102018103973B4 (de) | 2018-02-22 | 2020-12-03 | Infineon Technologies Ag | Siliziumcarbid-halbleiterbauelement |
DE102019111308A1 (de) | 2018-05-07 | 2019-11-07 | Infineon Technologies Ag | Siliziumcarbid halbleiterbauelement |
DE102018124740A1 (de) | 2018-10-08 | 2020-04-09 | Infineon Technologies Ag | Halbleiterbauelement mit einem sic halbleiterkörper und verfahren zur herstellung eines halbleiterbauelements |
US10586845B1 (en) | 2018-11-16 | 2020-03-10 | Infineon Technologies Ag | SiC trench transistor device and methods of manufacturing thereof |
US10985248B2 (en) | 2018-11-16 | 2021-04-20 | Infineon Technologies Ag | SiC power semiconductor device with integrated Schottky junction |
US10903322B2 (en) | 2018-11-16 | 2021-01-26 | Infineon Technologies Ag | SiC power semiconductor device with integrated body diode |
US11004970B2 (en) | 2019-05-20 | 2021-05-11 | Nxp Usa, Inc. | Mirror device structure for power MOSFET and method of manufacture |
JPWO2023063411A1 (de) * | 2021-10-15 | 2023-04-20 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5939071A (ja) * | 1982-08-27 | 1984-03-03 | Nissan Motor Co Ltd | 縦型パワ−mos・fet |
JPS60254658A (ja) * | 1984-05-30 | 1985-12-16 | Toshiba Corp | 導電変調型mosfet |
JPH01198076A (ja) * | 1988-02-02 | 1989-08-09 | Mitsubishi Electric Corp | 半導体装置 |
JPH0286171A (ja) * | 1988-09-22 | 1990-03-27 | Hitachi Ltd | 半導体素子およびその製造方法 |
JP3297060B2 (ja) * | 1990-09-17 | 2002-07-02 | 株式会社東芝 | 絶縁ゲート型サイリスタ |
US5326711A (en) * | 1993-01-04 | 1994-07-05 | Texas Instruments Incorporated | High performance high voltage vertical transistor and method of fabrication |
JP3204792B2 (ja) * | 1993-04-27 | 2001-09-04 | 株式会社東芝 | 半導体装置 |
JPH07273319A (ja) * | 1994-03-31 | 1995-10-20 | Nippondenso Co Ltd | 半導体装置 |
US5674766A (en) * | 1994-12-30 | 1997-10-07 | Siliconix Incorporated | Method of making a trench MOSFET with multi-resistivity drain to provide low on-resistance by varying dopant concentration in epitaxial layer |
JP3288218B2 (ja) * | 1995-03-14 | 2002-06-04 | 三菱電機株式会社 | 絶縁ゲート型半導体装置およびその製造方法 |
US5998837A (en) * | 1995-06-02 | 1999-12-07 | Siliconix Incorporated | Trench-gated power MOSFET with protective diode having adjustable breakdown voltage |
JP2988871B2 (ja) * | 1995-06-02 | 1999-12-13 | シリコニックス・インコーポレイテッド | トレンチゲートパワーmosfet |
EP0746042B1 (de) * | 1995-06-02 | 2004-03-31 | SILICONIX Incorporated | Bidirektional sperrender Graben-Leistungs-MOSFET |
JP3384198B2 (ja) * | 1995-07-21 | 2003-03-10 | 三菱電機株式会社 | 絶縁ゲート型半導体装置およびその製造方法 |
JP3410286B2 (ja) * | 1996-04-01 | 2003-05-26 | 三菱電機株式会社 | 絶縁ゲート型半導体装置 |
US6429481B1 (en) * | 1997-11-14 | 2002-08-06 | Fairchild Semiconductor Corporation | Field effect transistor and method of its manufacture |
-
1998
- 1998-06-02 US US09/089,250 patent/US6204533B1/en not_active Expired - Lifetime
-
1999
- 1999-05-27 EP EP99110268A patent/EP0962987B1/de not_active Expired - Lifetime
- 1999-05-27 DE DE69941415T patent/DE69941415D1/de not_active Expired - Lifetime
- 1999-05-28 JP JP14976099A patent/JP4671456B2/ja not_active Expired - Lifetime
- 1999-06-02 KR KR10-1999-0020147A patent/KR100429475B1/ko not_active IP Right Cessation
- 1999-08-27 TW TW088108984A patent/TW486728B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0962987B1 (de) | 2009-09-16 |
EP0962987A2 (de) | 1999-12-08 |
TW486728B (en) | 2002-05-11 |
JP2000031484A (ja) | 2000-01-28 |
KR100429475B1 (ko) | 2004-05-03 |
JP4671456B2 (ja) | 2011-04-20 |
US6204533B1 (en) | 2001-03-20 |
KR20000005824A (ko) | 2000-01-25 |
EP0962987A3 (de) | 2002-02-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |