DE69319549T2 - Spannungsgesteuerte Halbleiteranordnung - Google Patents
Spannungsgesteuerte HalbleiteranordnungInfo
- Publication number
- DE69319549T2 DE69319549T2 DE69319549T DE69319549T DE69319549T2 DE 69319549 T2 DE69319549 T2 DE 69319549T2 DE 69319549 T DE69319549 T DE 69319549T DE 69319549 T DE69319549 T DE 69319549T DE 69319549 T2 DE69319549 T2 DE 69319549T2
- Authority
- DE
- Germany
- Prior art keywords
- semiconductor device
- voltage controlled
- controlled semiconductor
- voltage
- semiconductor
- 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 - Fee Related
Links
- 239000004065 semiconductor Substances 0.000 title 1
Classifications
-
- 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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
- H01L27/0711—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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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 bipolar transistors and diodes, or capacitors, or resistors
- H01L27/0722—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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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 bipolar transistors and diodes, or capacitors, or resistors in combination with lateral bipolar transistors and diodes, or capacitors, or resistors
-
- 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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
- H01L27/0711—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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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 bipolar transistors and diodes, or capacitors, or resistors
- H01L27/0716—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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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 bipolar transistors and diodes, or capacitors, or resistors in combination with vertical bipolar transistors and diodes, or capacitors, or resistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. 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
- H01L29/70—Bipolar devices
- H01L29/72—Transistor-type devices, i.e. able to continuously respond to applied control signals
- H01L29/739—Transistor-type devices, i.e. able to continuously respond to applied control signals controlled by field-effect, e.g. bipolar static induction transistors [BSIT]
- H01L29/7393—Insulated gate bipolar mode transistors, i.e. IGBT; IGT; COMFET
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. 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
- H01L29/70—Bipolar devices
- H01L29/72—Transistor-type devices, i.e. able to continuously respond to applied control signals
- H01L29/739—Transistor-type devices, i.e. able to continuously respond to applied control signals controlled by field-effect, e.g. bipolar static induction transistors [BSIT]
- H01L29/7393—Insulated gate bipolar mode transistors, i.e. IGBT; IGT; COMFET
- H01L29/7395—Vertical transistors, e.g. vertical IGBT
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4311532A JPH06163907A (ja) | 1992-11-20 | 1992-11-20 | 電圧駆動型半導体装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69319549D1 DE69319549D1 (de) | 1998-08-13 |
DE69319549T2 true DE69319549T2 (de) | 1999-02-04 |
Family
ID=18018376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69319549T Expired - Fee Related DE69319549T2 (de) | 1992-11-20 | 1993-11-19 | Spannungsgesteuerte Halbleiteranordnung |
Country Status (4)
Country | Link |
---|---|
US (1) | US5572048A (de) |
EP (1) | EP0599221B1 (de) |
JP (1) | JPH06163907A (de) |
DE (1) | DE69319549T2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10314604B4 (de) * | 2003-03-31 | 2006-07-27 | Infineon Technologies Ag | IGBT-Anordnung mit Reverse-Diodenfunktion |
Families Citing this family (66)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3182262B2 (ja) * | 1993-07-12 | 2001-07-03 | 株式会社東芝 | 半導体装置 |
CN1035294C (zh) * | 1993-10-29 | 1997-06-25 | 电子科技大学 | 具有异形掺杂岛的半导体器件耐压层 |
US6005258A (en) | 1994-03-22 | 1999-12-21 | Toyoda Gosei Co., Ltd. | Light-emitting semiconductor device using group III Nitrogen compound having emission layer doped with donor and acceptor impurities |
DE4421529C2 (de) * | 1994-06-20 | 1996-04-18 | Semikron Elektronik Gmbh | Schnelle Leistungsdiode |
DE4429284A1 (de) * | 1994-08-18 | 1996-02-22 | Siemens Ag | Halbleiterbauelement mit zwei monolithisch integrierten Schaltelementen und einem vergrabenen strukturierten Steuergebiet |
DE4438896A1 (de) * | 1994-10-31 | 1996-05-02 | Abb Management Ag | Halbleiterdiode mit Elektronenspender |
US6037632A (en) * | 1995-11-06 | 2000-03-14 | Kabushiki Kaisha Toshiba | Semiconductor device |
US5861657A (en) * | 1996-01-18 | 1999-01-19 | International Rectifier Corporation | Graded concentration epitaxial substrate for semiconductor device having resurf diffusion |
US5804849A (en) * | 1996-05-13 | 1998-09-08 | Motorola, Inc. | Compound semiconductor device and method of manufacture |
EP1081769A4 (de) | 1998-04-27 | 2007-05-02 | Mitsubishi Electric Corp | Halbleiteranordnung und verfahren zur herstellung |
US6239466B1 (en) * | 1998-12-04 | 2001-05-29 | General Electric Company | Insulated gate bipolar transistor for zero-voltage switching |
US7745289B2 (en) | 2000-08-16 | 2010-06-29 | Fairchild Semiconductor Corporation | Method of forming a FET having ultra-low on-resistance and low gate charge |
US6803626B2 (en) | 2002-07-18 | 2004-10-12 | Fairchild Semiconductor Corporation | Vertical charge control semiconductor device |
US7132712B2 (en) | 2002-11-05 | 2006-11-07 | Fairchild Semiconductor Corporation | Trench structure having one or more diodes embedded therein adjacent a PN junction |
US6916745B2 (en) | 2003-05-20 | 2005-07-12 | Fairchild Semiconductor Corporation | Structure and method for forming a trench MOSFET having self-aligned features |
US6818513B2 (en) | 2001-01-30 | 2004-11-16 | Fairchild Semiconductor Corporation | Method of forming a field effect transistor having a lateral depletion structure |
US6710403B2 (en) | 2002-07-30 | 2004-03-23 | Fairchild Semiconductor Corporation | Dual trench power MOSFET |
US6677641B2 (en) | 2001-10-17 | 2004-01-13 | Fairchild Semiconductor Corporation | Semiconductor structure with improved smaller forward voltage loss and higher blocking capability |
US6492687B2 (en) * | 2001-05-07 | 2002-12-10 | Semiconductor Components Industries Llc | Merged semiconductor device and method |
US7061066B2 (en) | 2001-10-17 | 2006-06-13 | Fairchild Semiconductor Corporation | Schottky diode using charge balance structure |
DE10226664B4 (de) * | 2002-06-14 | 2006-10-26 | Infineon Technologies Ag | Kompensations-Halbleiterbauelement |
US7033891B2 (en) | 2002-10-03 | 2006-04-25 | Fairchild Semiconductor Corporation | Trench gate laterally diffused MOSFET devices and methods for making such devices |
US7576388B1 (en) | 2002-10-03 | 2009-08-18 | Fairchild Semiconductor Corporation | Trench-gate LDMOS structures |
US6710418B1 (en) | 2002-10-11 | 2004-03-23 | Fairchild Semiconductor Corporation | Schottky rectifier with insulation-filled trenches and method of forming the same |
US7652326B2 (en) | 2003-05-20 | 2010-01-26 | Fairchild Semiconductor Corporation | Power semiconductor devices and methods of manufacture |
KR100994719B1 (ko) | 2003-11-28 | 2010-11-16 | 페어차일드코리아반도체 주식회사 | 슈퍼정션 반도체장치 |
DE10361136B4 (de) * | 2003-12-23 | 2005-10-27 | Infineon Technologies Ag | Halbleiterdiode und IGBT |
US7368777B2 (en) | 2003-12-30 | 2008-05-06 | Fairchild Semiconductor Corporation | Accumulation device with charge balance structure and method of forming the same |
US20090050958A1 (en) * | 2004-05-21 | 2009-02-26 | Qi Wang | Semiconductor device having a spacer layer doped with slower diffusing atoms than substrate |
US7352036B2 (en) | 2004-08-03 | 2008-04-01 | Fairchild Semiconductor Corporation | Semiconductor power device having a top-side drain using a sinker trench |
JP2008536316A (ja) | 2005-04-06 | 2008-09-04 | フェアチャイルド・セミコンダクター・コーポレーション | トレンチゲート電界効果トランジスタおよびその形成方法 |
JP2007103770A (ja) * | 2005-10-06 | 2007-04-19 | Sanken Electric Co Ltd | 絶縁ゲート型バイポーラトランジスタ |
US7667265B2 (en) * | 2006-01-30 | 2010-02-23 | Fairchild Semiconductor Corporation | Varying mesa dimensions in high cell density trench MOSFET |
US7446374B2 (en) | 2006-03-24 | 2008-11-04 | Fairchild Semiconductor Corporation | High density trench FET with integrated Schottky diode and method of manufacture |
US7319256B1 (en) | 2006-06-19 | 2008-01-15 | Fairchild Semiconductor Corporation | Shielded gate trench FET with the shield and gate electrodes being connected together |
US7944018B2 (en) | 2006-08-14 | 2011-05-17 | Icemos Technology Ltd. | Semiconductor devices with sealed, unlined trenches and methods of forming same |
US8580651B2 (en) * | 2007-04-23 | 2013-11-12 | Icemos Technology Ltd. | Methods for manufacturing a trench type semiconductor device having a thermally sensitive refill material |
US7723172B2 (en) * | 2007-04-23 | 2010-05-25 | Icemos Technology Ltd. | Methods for manufacturing a trench type semiconductor device having a thermally sensitive refill material |
US20080272429A1 (en) * | 2007-05-04 | 2008-11-06 | Icemos Technology Corporation | Superjunction devices having narrow surface layout of terminal structures and methods of manufacturing the devices |
JP2008311572A (ja) * | 2007-06-18 | 2008-12-25 | Rohm Co Ltd | 半導体装置 |
US8766317B2 (en) | 2007-06-18 | 2014-07-01 | Rohm Co., Ltd. | Semiconductor device |
EP2208229A4 (de) | 2007-09-21 | 2011-03-16 | Fairchild Semiconductor | Superübergangsstrukturen für leistungsanordnungen und herstellungsverfahren |
US8012806B2 (en) * | 2007-09-28 | 2011-09-06 | Icemos Technology Ltd. | Multi-directional trenching of a die in manufacturing superjunction devices |
US7875951B2 (en) * | 2007-12-12 | 2011-01-25 | Infineon Technologies Austria Ag | Semiconductor with active component and method for manufacture |
US7772668B2 (en) | 2007-12-26 | 2010-08-10 | Fairchild Semiconductor Corporation | Shielded gate trench FET with multiple channels |
US7846821B2 (en) * | 2008-02-13 | 2010-12-07 | Icemos Technology Ltd. | Multi-angle rotation for ion implantation of trenches in superjunction devices |
US20120273916A1 (en) | 2011-04-27 | 2012-11-01 | Yedinak Joseph A | Superjunction Structures for Power Devices and Methods of Manufacture |
US8174067B2 (en) | 2008-12-08 | 2012-05-08 | Fairchild Semiconductor Corporation | Trench-based power semiconductor devices with increased breakdown voltage characteristics |
TWI404205B (zh) * | 2009-10-06 | 2013-08-01 | Anpec Electronics Corp | 絕緣閘雙極電晶體與快速逆向恢復時間整流器之整合結構及其製作方法 |
US8319290B2 (en) | 2010-06-18 | 2012-11-27 | Fairchild Semiconductor Corporation | Trench MOS barrier schottky rectifier with a planar surface using CMP techniques |
US8487371B2 (en) | 2011-03-29 | 2013-07-16 | Fairchild Semiconductor Corporation | Vertical MOSFET transistor having source/drain contacts disposed on the same side and method for manufacturing the same |
US8673700B2 (en) | 2011-04-27 | 2014-03-18 | Fairchild Semiconductor Corporation | Superjunction structures for power devices and methods of manufacture |
US8836028B2 (en) | 2011-04-27 | 2014-09-16 | Fairchild Semiconductor Corporation | Superjunction structures for power devices and methods of manufacture |
US8786010B2 (en) | 2011-04-27 | 2014-07-22 | Fairchild Semiconductor Corporation | Superjunction structures for power devices and methods of manufacture |
US8772868B2 (en) | 2011-04-27 | 2014-07-08 | Fairchild Semiconductor Corporation | Superjunction structures for power devices and methods of manufacture |
CN102856192B (zh) * | 2011-06-27 | 2015-05-13 | 中国科学院微电子研究所 | Igbt器件及其制作方法 |
CN102856193B (zh) * | 2011-06-27 | 2015-05-13 | 中国科学院微电子研究所 | Igbt器件及其制作方法 |
TWI587503B (zh) * | 2012-01-11 | 2017-06-11 | 世界先進積體電路股份有限公司 | 半導體裝置及其製造方法 |
US8946814B2 (en) | 2012-04-05 | 2015-02-03 | Icemos Technology Ltd. | Superjunction devices having narrow surface layout of terminal structures, buried contact regions and trench gates |
US9287371B2 (en) | 2012-10-05 | 2016-03-15 | Semiconductor Components Industries, Llc | Semiconductor device having localized charge balance structure and method |
US9219138B2 (en) | 2012-10-05 | 2015-12-22 | Semiconductor Components Industries, Llc | Semiconductor device having localized charge balance structure and method |
CN104810408A (zh) * | 2014-01-24 | 2015-07-29 | 无锡华润华晶微电子有限公司 | 一种超势垒整流器件及其制造方法 |
FR3048288B1 (fr) * | 2016-02-25 | 2018-03-23 | Stmicroelectronics (Crolles 2) Sas | Detecteur electronique integre de variations de potentiel a haute sensibilite |
US9768247B1 (en) | 2016-05-06 | 2017-09-19 | Semiconductor Components Industries, Llc | Semiconductor device having improved superjunction trench structure and method of manufacture |
US9761712B1 (en) * | 2016-10-31 | 2017-09-12 | International Business Machines Corporation | Vertical transistors with merged active area regions |
US11393812B2 (en) * | 2017-12-28 | 2022-07-19 | Fuji Electric Co., Ltd. | Semiconductor device and method of manufacturing semiconductor device |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IE53895B1 (en) * | 1981-11-23 | 1989-04-12 | Gen Electric | Semiconductor device having rapid removal of majority carriers from an active base region thereof at device turn-off and method of fabricating this device |
EP0146181B1 (de) * | 1983-12-16 | 1989-03-15 | Koninklijke Philips Electronics N.V. | Halbleiteranordnung mit einem zusammengefassten Bipolar-Feldeffekttransistor |
IT1213231B (it) * | 1984-10-25 | 1989-12-14 | Ates Componenti Elettron | Dispositivo elettronico integrato a tensione costante stabilizzata, eprocedimento per la sua fabbricazione. |
US4609929A (en) * | 1984-12-21 | 1986-09-02 | North American Philips Corporation | Conductivity-enhanced combined lateral MOS/bipolar transistor |
US4821095A (en) * | 1987-03-12 | 1989-04-11 | General Electric Company | Insulated gate semiconductor device with extra short grid and method of fabrication |
IT1217323B (it) * | 1987-12-22 | 1990-03-22 | Sgs Microelettronica Spa | Struttura integrata di transistor bipolare di potenza di alta tensione e di transistor mos di potenza di bassa tensione nella configurazione"emitter switching"e relativo processo di fabbricazione |
JPH01305557A (ja) * | 1988-06-03 | 1989-12-08 | Fuji Electric Co Ltd | 半導体装置 |
JPH0783120B2 (ja) * | 1988-09-01 | 1995-09-06 | 三菱電機株式会社 | バイポーラ型半導体スイッチング装置 |
TW399774U (en) * | 1989-07-03 | 2000-07-21 | Gen Electric | FET, IGBT and MCT structures to enhance operating characteristics |
EP0409010A1 (de) * | 1989-07-19 | 1991-01-23 | Asea Brown Boveri Ag | Abschaltbares Leistungshalbleiterbauelement |
JP2581233B2 (ja) * | 1989-11-06 | 1997-02-12 | 富士電機株式会社 | 横型伝導度変調mosfet |
JPH0414263A (ja) * | 1990-05-07 | 1992-01-20 | Fuji Electric Co Ltd | 絶縁ゲート型バイポーラトランジスタ |
JPH04162776A (ja) * | 1990-10-26 | 1992-06-08 | Fuji Electric Co Ltd | 横型絶縁ゲートサイリスタ |
-
1992
- 1992-11-20 JP JP4311532A patent/JPH06163907A/ja active Pending
-
1993
- 1993-11-17 US US08/153,047 patent/US5572048A/en not_active Expired - Fee Related
- 1993-11-19 EP EP93118663A patent/EP0599221B1/de not_active Expired - Lifetime
- 1993-11-19 DE DE69319549T patent/DE69319549T2/de not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10314604B4 (de) * | 2003-03-31 | 2006-07-27 | Infineon Technologies Ag | IGBT-Anordnung mit Reverse-Diodenfunktion |
Also Published As
Publication number | Publication date |
---|---|
EP0599221B1 (de) | 1998-07-08 |
EP0599221A1 (de) | 1994-06-01 |
US5572048A (en) | 1996-11-05 |
JPH06163907A (ja) | 1994-06-10 |
DE69319549D1 (de) | 1998-08-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |