SG52400A1 - Short channel trenched dmos transistor - Google Patents
Short channel trenched dmos transistorInfo
- Publication number
- SG52400A1 SG52400A1 SG1996003997A SG1996003997A SG52400A1 SG 52400 A1 SG52400 A1 SG 52400A1 SG 1996003997 A SG1996003997 A SG 1996003997A SG 1996003997 A SG1996003997 A SG 1996003997A SG 52400 A1 SG52400 A1 SG 52400A1
- Authority
- SG
- Singapore
- Prior art keywords
- short channel
- dmos transistor
- trenched dmos
- channel trenched
- transistor
- Prior art date
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
- H01L29/02—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
- H01L29/08—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 carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- H01L29/0843—Source or drain regions of field-effect devices
- H01L29/0847—Source or drain regions of field-effect devices of field-effect transistors with insulated gate
- H01L29/0852—Source or drain regions of field-effect devices of field-effect transistors with insulated gate of DMOS transistors
- H01L29/0856—Source regions
- H01L29/0869—Shape
-
- 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
- H01L29/02—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
- H01L29/08—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 carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- H01L29/0843—Source or drain regions of field-effect devices
- H01L29/0847—Source or drain regions of field-effect devices of field-effect transistors with insulated gate
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S148/00—Metal treatment
- Y10S148/103—Mask, dual function, e.g. diffusion and oxidation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S438/00—Semiconductor device manufacturing: process
- Y10S438/965—Shaped junction formation
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/031,798 US5341011A (en) | 1993-03-15 | 1993-03-15 | Short channel trenched DMOS transistor |
Publications (1)
Publication Number | Publication Date |
---|---|
SG52400A1 true SG52400A1 (en) | 1998-09-28 |
Family
ID=21861454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG1996003997A SG52400A1 (en) | 1993-03-15 | 1994-03-15 | Short channel trenched dmos transistor |
Country Status (5)
Country | Link |
---|---|
US (2) | US5341011A (ja) |
EP (1) | EP0616372B1 (ja) |
JP (2) | JP3677304B2 (ja) |
DE (2) | DE616372T1 (ja) |
SG (1) | SG52400A1 (ja) |
Families Citing this family (98)
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US5910669A (en) * | 1992-07-24 | 1999-06-08 | Siliconix Incorporated | Field effect Trench transistor having lightly doped epitaxial region on the surface portion thereof |
US5558313A (en) * | 1992-07-24 | 1996-09-24 | Siliconix Inorporated | Trench field effect transistor with reduced punch-through susceptibility and low RDSon |
DE69429018T2 (de) * | 1993-01-12 | 2002-06-13 | Sony Corp., Tokio/Tokyo | Ausgangsschaltung für Ladungsübertragungselement |
US5410170A (en) * | 1993-04-14 | 1995-04-25 | Siliconix Incorporated | DMOS power transistors with reduced number of contacts using integrated body-source connections |
EP0698919B1 (en) * | 1994-08-15 | 2002-01-16 | Siliconix Incorporated | Trenched DMOS transistor fabrication using seven masks |
US5869864A (en) * | 1994-10-04 | 1999-02-09 | Siemens Aktiengesellschaft | Field effect controlled semiconductor component |
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 |
US5688725A (en) * | 1994-12-30 | 1997-11-18 | Siliconix Incorporated | Method of making a trench mosfet with heavily doped delta layer to provide low on-resistance |
US6008520A (en) * | 1994-12-30 | 1999-12-28 | Siliconix Incorporated | Trench MOSFET with heavily doped delta layer to provide low on- resistance |
US5597765A (en) * | 1995-01-10 | 1997-01-28 | Siliconix Incorporated | Method for making termination structure for power MOSFET |
DE69602114T2 (de) * | 1995-02-10 | 1999-08-19 | Siliconix Inc. | Graben-Feldeffekttransistor mit PN-Verarmungsschicht-Barriere |
US5567634A (en) * | 1995-05-01 | 1996-10-22 | National Semiconductor Corporation | Method of fabricating self-aligned contact trench DMOS transistors |
US5648670A (en) * | 1995-06-07 | 1997-07-15 | Sgs-Thomson Microelectronics, Inc. | Trench MOS-gated device with a minimum number of masks |
JPH0955496A (ja) * | 1995-08-17 | 1997-02-25 | Oki Electric Ind Co Ltd | 高耐圧mosトランジスタ及びその製造方法 |
WO1997007548A1 (en) * | 1995-08-21 | 1997-02-27 | Siliconix Incorporated | Low voltage short channel trench dmos transistor |
US5629543A (en) * | 1995-08-21 | 1997-05-13 | Siliconix Incorporated | Trenched DMOS transistor with buried layer for reduced on-resistance and ruggedness |
US5689128A (en) * | 1995-08-21 | 1997-11-18 | Siliconix Incorporated | High density trenched DMOS transistor |
JP3279151B2 (ja) * | 1995-10-23 | 2002-04-30 | トヨタ自動車株式会社 | 半導体装置及びその製造方法 |
US5721148A (en) * | 1995-12-07 | 1998-02-24 | Fuji Electric Co. | Method for manufacturing MOS type semiconductor device |
US5821583A (en) * | 1996-03-06 | 1998-10-13 | Siliconix Incorporated | Trenched DMOS transistor with lightly doped tub |
US5872374A (en) * | 1996-03-29 | 1999-02-16 | Motorola, Inc. | Vertical semiconductor device |
US5904525A (en) * | 1996-05-08 | 1999-05-18 | Siliconix Incorporated | Fabrication of high-density trench DMOS using sidewall spacers |
EP0948818B1 (en) * | 1996-07-19 | 2009-01-07 | SILICONIX Incorporated | High density trench dmos transistor with trench bottom implant |
US5808340A (en) * | 1996-09-18 | 1998-09-15 | Advanced Micro Devices, Inc. | Short channel self aligned VMOS field effect transistor |
WO1998012741A1 (en) * | 1996-09-18 | 1998-03-26 | Advanced Micro Devices, Inc. | Short channel non-self aligned vmos field effect transistor |
US5693547A (en) * | 1996-10-22 | 1997-12-02 | Advanced Micro Devices, Inc. | Method of making vertical MOSFET with sub-trench source contact |
KR100218260B1 (ko) * | 1997-01-14 | 1999-09-01 | 김덕중 | 트랜치 게이트형 모스트랜지스터의 제조방법 |
JP3938964B2 (ja) * | 1997-02-10 | 2007-06-27 | 三菱電機株式会社 | 高耐圧半導体装置およびその製造方法 |
KR100225409B1 (ko) * | 1997-03-27 | 1999-10-15 | 김덕중 | 트렌치 디-모오스 및 그의 제조 방법 |
US6103635A (en) * | 1997-10-28 | 2000-08-15 | Fairchild Semiconductor Corp. | Trench forming process and integrated circuit device including a trench |
US6429481B1 (en) * | 1997-11-14 | 2002-08-06 | Fairchild Semiconductor Corporation | Field effect transistor and method of its manufacture |
US6492232B1 (en) | 1998-06-15 | 2002-12-10 | Motorola, Inc. | Method of manufacturing vertical semiconductor device |
US6198127B1 (en) * | 1999-05-19 | 2001-03-06 | Intersil Corporation | MOS-gated power device having extended trench and doping zone and process for forming same |
US6274905B1 (en) | 1999-06-30 | 2001-08-14 | Fairchild Semiconductor Corporation | Trench structure substantially filled with high-conductivity material |
US6461918B1 (en) | 1999-12-20 | 2002-10-08 | Fairchild Semiconductor Corporation | Power MOS device with improved gate charge performance |
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 |
JP2002110978A (ja) * | 2000-10-02 | 2002-04-12 | Toshiba Corp | 電力用半導体素子 |
US6468870B1 (en) | 2000-12-26 | 2002-10-22 | Taiwan Semiconductor Manufacturing Company | Method of fabricating a LDMOS transistor |
US6818513B2 (en) | 2001-01-30 | 2004-11-16 | Fairchild Semiconductor Corporation | Method of forming a field effect transistor having a lateral depletion structure |
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 |
US6710403B2 (en) | 2002-07-30 | 2004-03-23 | Fairchild Semiconductor Corporation | Dual trench power MOSFET |
US6916745B2 (en) | 2003-05-20 | 2005-07-12 | Fairchild Semiconductor Corporation | Structure and method for forming a trench MOSFET having self-aligned features |
US7345342B2 (en) | 2001-01-30 | 2008-03-18 | Fairchild Semiconductor Corporation | Power semiconductor devices and methods of manufacture |
US6677641B2 (en) | 2001-10-17 | 2004-01-13 | Fairchild Semiconductor Corporation | Semiconductor structure with improved smaller forward voltage loss and higher blocking capability |
US6756273B2 (en) * | 2001-03-12 | 2004-06-29 | Semiconductor Components Industries, L.L.C. | Semiconductor component and method of manufacturing |
US7061066B2 (en) | 2001-10-17 | 2006-06-13 | Fairchild Semiconductor Corporation | Schottky diode using charge balance structure |
KR100859701B1 (ko) | 2002-02-23 | 2008-09-23 | 페어차일드코리아반도체 주식회사 | 고전압 수평형 디모스 트랜지스터 및 그 제조 방법 |
US6852634B2 (en) * | 2002-06-27 | 2005-02-08 | Semiconductor Components Industries L.L.C. | Low cost method of providing a semiconductor device having a high channel density |
US7576388B1 (en) | 2002-10-03 | 2009-08-18 | Fairchild Semiconductor Corporation | Trench-gate LDMOS structures |
US7033891B2 (en) | 2002-10-03 | 2006-04-25 | Fairchild Semiconductor Corporation | Trench gate laterally diffused MOSFET devices and methods for making such devices |
US6710418B1 (en) | 2002-10-11 | 2004-03-23 | Fairchild Semiconductor Corporation | Schottky rectifier with insulation-filled trenches and method of forming the same |
US6876035B2 (en) * | 2003-05-06 | 2005-04-05 | International Business Machines Corporation | High voltage N-LDMOS transistors having shallow trench isolation region |
US6992352B2 (en) | 2003-05-15 | 2006-01-31 | Analog Power Limited | Trenched DMOS devices and methods and processes for making same |
US7638841B2 (en) | 2003-05-20 | 2009-12-29 | Fairchild Semiconductor Corporation | Power semiconductor devices and methods of manufacture |
DE10345345A1 (de) * | 2003-09-19 | 2005-04-14 | Atmel Germany Gmbh | Verfahren zur Herstellung von Halbleiterbauelementen in einem Halbleitersubstrat |
DE10345346B4 (de) * | 2003-09-19 | 2010-09-16 | Atmel Automotive Gmbh | Verfahren zur Herstellung eines Halbleiterbauelements mit aktiven Bereichen, die durch Isolationsstrukturen voneinander getrennt sind |
JP2005101449A (ja) * | 2003-09-26 | 2005-04-14 | Semiconductor Leading Edge Technologies Inc | 半導体装置及びその製造方法 |
KR100994719B1 (ko) | 2003-11-28 | 2010-11-16 | 페어차일드코리아반도체 주식회사 | 슈퍼정션 반도체장치 |
US7368777B2 (en) | 2003-12-30 | 2008-05-06 | Fairchild Semiconductor Corporation | Accumulation device with charge balance structure and method of forming the same |
US7352036B2 (en) | 2004-08-03 | 2008-04-01 | Fairchild Semiconductor Corporation | Semiconductor power device having a top-side drain using a sinker trench |
US7265415B2 (en) | 2004-10-08 | 2007-09-04 | Fairchild Semiconductor Corporation | MOS-gated transistor with reduced miller capacitance |
CN101185169B (zh) | 2005-04-06 | 2010-08-18 | 飞兆半导体公司 | 沟栅场效应晶体管及其形成方法 |
US7385248B2 (en) | 2005-08-09 | 2008-06-10 | Fairchild Semiconductor Corporation | Shielded gate field effect transistor with improved inter-poly dielectric |
JP4956953B2 (ja) * | 2005-09-30 | 2012-06-20 | 株式会社デンソー | 半導体装置 |
EP1989728B1 (en) * | 2006-02-23 | 2015-04-08 | Vishay-Siliconix | Process for forming a short channel 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 |
EP2070108A4 (en) * | 2006-09-27 | 2010-12-01 | Maxpower Semiconductor Inc | MOS FIELD EFFECT TRANSISTOR HAVING A REINFORCED FIELD PLATE |
JP2008218711A (ja) * | 2007-03-05 | 2008-09-18 | Renesas Technology Corp | 半導体装置およびその製造方法、ならびに電源装置 |
JP5767430B2 (ja) * | 2007-08-10 | 2015-08-19 | ローム株式会社 | 半導体装置および半導体装置の製造方法 |
JP2010541212A (ja) | 2007-09-21 | 2010-12-24 | フェアチャイルド・セミコンダクター・コーポレーション | 電力デバイスのための超接合構造及び製造方法 |
US9484451B2 (en) * | 2007-10-05 | 2016-11-01 | Vishay-Siliconix | MOSFET active area and edge termination area charge balance |
US20100013009A1 (en) * | 2007-12-14 | 2010-01-21 | James Pan | Structure and Method for Forming Trench Gate Transistors with Low Gate Resistance |
US7772668B2 (en) | 2007-12-26 | 2010-08-10 | Fairchild Semiconductor Corporation | Shielded gate trench FET with multiple channels |
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 |
JP4791572B2 (ja) * | 2009-12-21 | 2011-10-12 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
US8319290B2 (en) | 2010-06-18 | 2012-11-27 | Fairchild Semiconductor Corporation | Trench MOS barrier schottky rectifier with a planar surface using CMP techniques |
JP2010283368A (ja) * | 2010-07-26 | 2010-12-16 | Renesas Electronics Corp | 半導体装置の製造方法 |
CN102637737B (zh) * | 2011-02-10 | 2015-04-15 | 上海华虹宏力半导体制造有限公司 | 沟槽式场效应管及其制备方法 |
US8772868B2 (en) | 2011-04-27 | 2014-07-08 | 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 |
US8673700B2 (en) | 2011-04-27 | 2014-03-18 | 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 |
US8872278B2 (en) | 2011-10-25 | 2014-10-28 | Fairchild Semiconductor Corporation | Integrated gate runner and field implant termination for trench devices |
US9431249B2 (en) | 2011-12-01 | 2016-08-30 | Vishay-Siliconix | Edge termination for super junction MOSFET devices |
US9614043B2 (en) | 2012-02-09 | 2017-04-04 | Vishay-Siliconix | MOSFET termination trench |
US8816431B2 (en) | 2012-03-09 | 2014-08-26 | Fairchild Semiconductor Corporation | Shielded gate MOSFET device with a funnel-shaped trench |
US9842911B2 (en) | 2012-05-30 | 2017-12-12 | Vishay-Siliconix | Adaptive charge balanced edge termination |
JP2014146738A (ja) * | 2013-01-30 | 2014-08-14 | Mitsubishi Electric Corp | 半導体装置およびその製造方法 |
US9508596B2 (en) | 2014-06-20 | 2016-11-29 | Vishay-Siliconix | Processes used in fabricating a metal-insulator-semiconductor field effect transistor |
US9887259B2 (en) | 2014-06-23 | 2018-02-06 | Vishay-Siliconix | Modulated super junction power MOSFET devices |
CN106575666B (zh) | 2014-08-19 | 2021-08-06 | 维西埃-硅化物公司 | 超结金属氧化物半导体场效应晶体管 |
US10269951B2 (en) * | 2017-05-16 | 2019-04-23 | General Electric Company | Semiconductor device layout and method for forming same |
CN108520898A (zh) * | 2018-04-02 | 2018-09-11 | 北京绿能芯创电子科技有限公司 | 具有可调变起始电压的Mosfet组件及其制造方法 |
CN109065628A (zh) * | 2018-08-21 | 2018-12-21 | 电子科技大学 | 一种体区变掺杂的槽栅dmos器件 |
CN111524961B (zh) | 2019-02-28 | 2021-02-02 | 长江存储科技有限责任公司 | 具有增大的击穿电压的高电压半导体器件及其制造方法 |
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US5460985A (en) * | 1991-07-26 | 1995-10-24 | Ipics Corporation | Production method of a verticle type MOSFET |
-
1993
- 1993-03-15 US US08/031,798 patent/US5341011A/en not_active Expired - Lifetime
-
1994
- 1994-03-15 DE DE0616372T patent/DE616372T1/de active Pending
- 1994-03-15 EP EP94301847A patent/EP0616372B1/en not_active Expired - Lifetime
- 1994-03-15 JP JP07165094A patent/JP3677304B2/ja not_active Expired - Lifetime
- 1994-03-15 DE DE69430768T patent/DE69430768T2/de not_active Expired - Fee Related
- 1994-03-15 SG SG1996003997A patent/SG52400A1/en unknown
- 1994-08-11 US US08/289,358 patent/US5474943A/en not_active Expired - Lifetime
-
2005
- 2005-03-14 JP JP2005071113A patent/JP2005167294A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JP2005167294A (ja) | 2005-06-23 |
JPH0750412A (ja) | 1995-02-21 |
EP0616372A3 (en) | 1996-08-14 |
EP0616372B1 (en) | 2002-06-12 |
US5474943A (en) | 1995-12-12 |
DE69430768D1 (de) | 2002-07-18 |
EP0616372A2 (en) | 1994-09-21 |
JP3677304B2 (ja) | 2005-07-27 |
US5341011A (en) | 1994-08-23 |
DE69430768T2 (de) | 2002-11-14 |
DE616372T1 (de) | 1995-11-09 |
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