KR100624683B1 - 트렌치 게이트 전극을 포함하는 금속-절연체-반도체 장치및 이의 제조 방법 - Google Patents
트렌치 게이트 전극을 포함하는 금속-절연체-반도체 장치및 이의 제조 방법 Download PDFInfo
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- KR100624683B1 KR100624683B1 KR1020047002073A KR20047002073A KR100624683B1 KR 100624683 B1 KR100624683 B1 KR 100624683B1 KR 1020047002073 A KR1020047002073 A KR 1020047002073A KR 20047002073 A KR20047002073 A KR 20047002073A KR 100624683 B1 KR100624683 B1 KR 100624683B1
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- Prior art keywords
- trench
- insulating layer
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- gate
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- Expired - Lifetime
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 18
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 17
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- 238000000151 deposition Methods 0.000 claims description 15
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- 238000005530 etching Methods 0.000 claims description 9
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- 239000005360 phosphosilicate glass Substances 0.000 claims description 6
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- 239000012212 insulator Substances 0.000 description 16
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- 230000004888 barrier function Effects 0.000 description 7
- 238000005229 chemical vapour deposition Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
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- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
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- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
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- 230000009467 reduction Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/64—Double-diffused metal-oxide semiconductor [DMOS] FETs
- H10D30/66—Vertical DMOS [VDMOS] FETs
- H10D30/668—Vertical DMOS [VDMOS] FETs having trench gate electrodes, e.g. UMOS transistors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
- H10D30/028—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs
- H10D30/0291—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs of vertical DMOS [VDMOS] FETs
- H10D30/0297—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs of vertical DMOS [VDMOS] FETs using recessing of the gate electrodes, e.g. to form trench gate electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/20—Electrodes characterised by their shapes, relative sizes or dispositions
- H10D64/27—Electrodes not carrying the current to be rectified, amplified, oscillated or switched, e.g. gates
- H10D64/311—Gate electrodes for field-effect devices
- H10D64/411—Gate electrodes for field-effect devices for FETs
- H10D64/511—Gate electrodes for field-effect devices for FETs for IGFETs
- H10D64/514—Gate electrodes for field-effect devices for FETs for IGFETs characterised by the insulating layers
- H10D64/516—Gate electrodes for field-effect devices for FETs for IGFETs characterised by the insulating layers the thicknesses being non-uniform
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D12/00—Bipolar devices controlled by the field effect, e.g. insulated-gate bipolar transistors [IGBT]
- H10D12/411—Insulated-gate bipolar transistors [IGBT]
- H10D12/441—Vertical IGBTs
- H10D12/461—Vertical IGBTs having non-planar surfaces, e.g. having trenches, recesses or pillars in the surfaces of the emitter, base or collector regions
- H10D12/481—Vertical IGBTs having non-planar surfaces, e.g. having trenches, recesses or pillars in the surfaces of the emitter, base or collector regions having gate structures on slanted surfaces, on vertical surfaces, or in grooves, e.g. trench gate IGBTs
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D18/00—Thyristors
- H10D18/40—Thyristors with turn-on by field effect
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/10—Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
- H10D62/13—Semiconductor regions connected to electrodes carrying current to be rectified, amplified or switched, e.g. source or drain regions
- H10D62/149—Source or drain regions of field-effect devices
- H10D62/151—Source or drain regions of field-effect devices of IGFETs
- H10D62/156—Drain regions of DMOS transistors
- H10D62/157—Impurity concentrations or distributions
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Electrodes Of Semiconductors (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/927,320 US6882000B2 (en) | 2001-08-10 | 2001-08-10 | Trench MIS device with reduced gate-to-drain capacitance |
| US09/927,320 | 2001-08-10 | ||
| PCT/US2002/022937 WO2003015179A2 (en) | 2001-08-10 | 2002-07-19 | Mis device having a trench gate electrode and method of making the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20040051584A KR20040051584A (ko) | 2004-06-18 |
| KR100624683B1 true KR100624683B1 (ko) | 2006-09-19 |
Family
ID=25454563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020047002073A Expired - Lifetime KR100624683B1 (ko) | 2001-08-10 | 2002-07-19 | 트렌치 게이트 전극을 포함하는 금속-절연체-반도체 장치및 이의 제조 방법 |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US6882000B2 (enExample) |
| EP (1) | EP1417717A2 (enExample) |
| JP (2) | JP2004538648A (enExample) |
| KR (1) | KR100624683B1 (enExample) |
| TW (1) | TW552680B (enExample) |
| WO (1) | WO2003015179A2 (enExample) |
Families Citing this family (57)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9063191B2 (en) * | 2012-02-24 | 2015-06-23 | Power Probe, Inc. | Electrical test device and method |
| US6291298B1 (en) * | 1999-05-25 | 2001-09-18 | Advanced Analogic Technologies, Inc. | Process of manufacturing Trench gate semiconductor device having gate oxide layer with multiple thicknesses |
| US6882000B2 (en) * | 2001-08-10 | 2005-04-19 | Siliconix Incorporated | Trench MIS device with reduced gate-to-drain capacitance |
| WO2003015180A2 (en) * | 2001-08-10 | 2003-02-20 | Siliconix Incorporated | Mis device having a trench gate electrode and method of making the same |
| US6781196B2 (en) * | 2002-03-11 | 2004-08-24 | General Semiconductor, Inc. | Trench DMOS transistor having improved trench structure |
| US6838722B2 (en) * | 2002-03-22 | 2005-01-04 | Siliconix Incorporated | Structures of and methods of fabricating trench-gated MIS devices |
| US8629019B2 (en) | 2002-09-24 | 2014-01-14 | Vishay-Siliconix | Method of forming self aligned contacts for a power MOSFET |
| US8080459B2 (en) * | 2002-09-24 | 2011-12-20 | Vishay-Siliconix | Self aligned contact in a semiconductor device and method of fabricating the same |
| US7279743B2 (en) | 2003-12-02 | 2007-10-09 | Vishay-Siliconix | Closed cell trench metal-oxide-semiconductor field effect transistor |
| US8183629B2 (en) * | 2004-05-13 | 2012-05-22 | Vishay-Siliconix | Stacked trench metal-oxide-semiconductor field effect transistor device |
| JP2006030318A (ja) * | 2004-07-12 | 2006-02-02 | Sanyo Electric Co Ltd | 表示装置 |
| US7494876B1 (en) | 2005-04-21 | 2009-02-24 | Vishay Siliconix | Trench-gated MIS device having thick polysilicon insulation layer at trench bottom and method of fabricating the same |
| EP1742257B1 (en) * | 2005-07-08 | 2012-09-05 | STMicroelectronics Srl | Method of manufacturing a semiconductor power device |
| US9111754B2 (en) * | 2005-07-26 | 2015-08-18 | Vishay-Siliconix | Floating gate structure with high electrostatic discharge performance |
| US7544545B2 (en) | 2005-12-28 | 2009-06-09 | Vishay-Siliconix | Trench polysilicon diode |
| JP4957005B2 (ja) * | 2006-01-31 | 2012-06-20 | 富士電機株式会社 | 炭化珪素半導体素子の製造方法 |
| US8471390B2 (en) | 2006-05-12 | 2013-06-25 | Vishay-Siliconix | Power MOSFET contact metallization |
| KR100909777B1 (ko) * | 2006-07-28 | 2009-07-29 | 주식회사 하이닉스반도체 | 반도체 소자의 제조 방법 |
| US9437729B2 (en) | 2007-01-08 | 2016-09-06 | Vishay-Siliconix | High-density power MOSFET with planarized metalization |
| US9947770B2 (en) | 2007-04-03 | 2018-04-17 | Vishay-Siliconix | Self-aligned trench MOSFET and method of manufacture |
| US8368126B2 (en) | 2007-04-19 | 2013-02-05 | Vishay-Siliconix | Trench metal oxide semiconductor with recessed trench material and remote contacts |
| US9484451B2 (en) | 2007-10-05 | 2016-11-01 | Vishay-Siliconix | MOSFET active area and edge termination area charge balance |
| US10600902B2 (en) | 2008-02-13 | 2020-03-24 | Vishay SIliconix, LLC | Self-repairing field effect transisitor |
| US8159021B2 (en) * | 2008-02-20 | 2012-04-17 | Force-Mos Technology Corporation | Trench MOSFET with double epitaxial structure |
| US8426275B2 (en) | 2009-01-09 | 2013-04-23 | Niko Semiconductor Co., Ltd. | Fabrication method of trenched power MOSFET |
| TWI435447B (zh) * | 2009-01-09 | 2014-04-21 | Niko Semiconductor Co Ltd | 功率金氧半導體場效電晶體及其製造方法 |
| US9443974B2 (en) * | 2009-08-27 | 2016-09-13 | Vishay-Siliconix | Super junction trench power MOSFET device fabrication |
| US9230810B2 (en) | 2009-09-03 | 2016-01-05 | Vishay-Siliconix | System and method for substrate wafer back side and edge cross section seals |
| US8105903B2 (en) * | 2009-09-21 | 2012-01-31 | Force Mos Technology Co., Ltd. | Method for making a trench MOSFET with shallow trench structures |
| US9431530B2 (en) | 2009-10-20 | 2016-08-30 | Vishay-Siliconix | Super-high density trench MOSFET |
| US9425305B2 (en) | 2009-10-20 | 2016-08-23 | Vishay-Siliconix | Structures of and methods of fabricating split gate MIS devices |
| US9419129B2 (en) | 2009-10-21 | 2016-08-16 | Vishay-Siliconix | Split gate semiconductor device with curved gate oxide profile |
| US9306056B2 (en) * | 2009-10-30 | 2016-04-05 | Vishay-Siliconix | Semiconductor device with trench-like feed-throughs |
| US8604525B2 (en) | 2009-11-02 | 2013-12-10 | Vishay-Siliconix | Transistor structure with feed-through source-to-substrate contact |
| KR101728363B1 (ko) | 2010-03-02 | 2017-05-02 | 비쉐이-실리코닉스 | 듀얼 게이트 디바이스의 구조 및 제조 방법 |
| US20120028425A1 (en) * | 2010-08-02 | 2012-02-02 | Hamilton Lu | Methods for fabricating trench metal oxide semiconductor field effect transistors |
| US8748977B2 (en) | 2011-03-23 | 2014-06-10 | Panasonic Corporation | Semiconductor device and method for producing same |
| WO2012158977A2 (en) | 2011-05-18 | 2012-11-22 | Vishay-Siliconix | Semiconductor device |
| WO2013013698A1 (en) * | 2011-07-22 | 2013-01-31 | X-Fab Semiconductor Foundries Ag | A semiconductor device |
| CN103247529B (zh) * | 2012-02-10 | 2016-08-03 | 无锡华润上华半导体有限公司 | 一种沟槽场效应器件及其制作方法 |
| US9842911B2 (en) | 2012-05-30 | 2017-12-12 | Vishay-Siliconix | Adaptive charge balanced edge termination |
| US8802530B2 (en) * | 2012-06-06 | 2014-08-12 | Alpha And Omega Semiconductor Incorporated | MOSFET with improved performance through induced net charge region in thick bottom insulator |
| JP5799046B2 (ja) | 2013-03-22 | 2015-10-21 | 株式会社東芝 | 半導体装置 |
| CN103311112B (zh) * | 2013-06-14 | 2016-01-27 | 矽力杰半导体技术(杭州)有限公司 | 在沟槽内形成多晶硅的方法 |
| US9887259B2 (en) | 2014-06-23 | 2018-02-06 | Vishay-Siliconix | Modulated super junction power MOSFET devices |
| WO2016028943A1 (en) | 2014-08-19 | 2016-02-25 | Vishay-Siliconix | Electronic circuit |
| 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 |
| US9425304B2 (en) | 2014-08-21 | 2016-08-23 | Vishay-Siliconix | Transistor structure with improved unclamped inductive switching immunity |
| CN109273534A (zh) * | 2018-10-30 | 2019-01-25 | 贵州恒芯微电子科技有限公司 | 一种新型屏蔽栅功率mos的器件 |
| US11217541B2 (en) | 2019-05-08 | 2022-01-04 | Vishay-Siliconix, LLC | Transistors with electrically active chip seal ring and methods of manufacture |
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| CN110896026A (zh) | 2019-11-22 | 2020-03-20 | 矽力杰半导体技术(杭州)有限公司 | 沟槽型mosfet结构及其制造方法 |
| CN111129152B (zh) * | 2019-12-17 | 2023-09-26 | 杭州芯迈半导体技术有限公司 | 沟槽mosfet结构及其制造方法 |
| CN111554746B (zh) | 2020-04-23 | 2022-09-16 | 杭州芯迈半导体技术有限公司 | 碳化硅mosfet器件及其制造方法 |
| CN112735954B (zh) * | 2020-12-30 | 2021-12-14 | 深圳市汇德科技有限公司 | 一种半导体芯片的制造方法 |
| CN113437137A (zh) * | 2021-08-09 | 2021-09-24 | 无锡新洁能股份有限公司 | 快恢复功率mosfet及其制造方法 |
| CN114975126B (zh) * | 2022-07-29 | 2022-10-25 | 威晟半导体科技(广州)有限公司 | 一种降低栅电荷的屏蔽栅沟槽型mosfet制造方法 |
Family Cites Families (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0620108B2 (ja) * | 1987-03-23 | 1994-03-16 | 三菱電機株式会社 | 半導体装置の製造方法 |
| JPS63237460A (ja) * | 1987-03-25 | 1988-10-03 | Mitsubishi Electric Corp | 半導体装置 |
| US4893160A (en) * | 1987-11-13 | 1990-01-09 | Siliconix Incorporated | Method for increasing the performance of trenched devices and the resulting structure |
| US5183774A (en) * | 1987-11-17 | 1993-02-02 | Mitsubishi Denki Kabushiki Kaisha | Method of making a semiconductor memory device |
| KR910000246B1 (ko) * | 1988-02-15 | 1991-01-23 | 삼성전자 주식회사 | 반도체 메모리장치 |
| US5183772A (en) | 1989-05-10 | 1993-02-02 | Samsung Electronics Co., Ltd. | Manufacturing method for a DRAM cell |
| US4954854A (en) * | 1989-05-22 | 1990-09-04 | International Business Machines Corporation | Cross-point lightly-doped drain-source trench transistor and fabrication process therefor |
| US4992390A (en) * | 1989-07-06 | 1991-02-12 | General Electric Company | Trench gate structure with thick bottom oxide |
| US5424231A (en) | 1994-08-09 | 1995-06-13 | United Microelectronics Corp. | Method for manufacturing a VDMOS transistor |
| JP2917922B2 (ja) * | 1996-07-15 | 1999-07-12 | 日本電気株式会社 | 半導体装置及びその製造方法 |
| WO1998004004A1 (en) | 1996-07-19 | 1998-01-29 | Siliconix Incorporated | High density trench dmos transistor with trench bottom implant |
| JP3705919B2 (ja) * | 1998-03-05 | 2005-10-12 | 三菱電機株式会社 | 半導体装置及びその製造方法 |
| US6262453B1 (en) * | 1998-04-24 | 2001-07-17 | Magepower Semiconductor Corp. | Double gate-oxide for reducing gate-drain capacitance in trenched DMOS with high-dopant concentration buried-region under trenched gate |
| JP2000100928A (ja) * | 1998-09-21 | 2000-04-07 | Kawasaki Steel Corp | 半導体装置およびその製造方法 |
| JP2000195945A (ja) * | 1998-12-25 | 2000-07-14 | Fujitsu Ltd | 半導体装置の製造方法 |
| US6071794A (en) * | 1999-06-01 | 2000-06-06 | Mosel Vitelic, Inc. | Method to prevent the formation of a thinner portion of insulating layer at the junction between the side walls and the bottom insulator |
| US6291298B1 (en) * | 1999-05-25 | 2001-09-18 | Advanced Analogic Technologies, Inc. | Process of manufacturing Trench gate semiconductor device having gate oxide layer with multiple thicknesses |
| JP2001024055A (ja) * | 1999-07-06 | 2001-01-26 | Matsushita Electronics Industry Corp | 半導体装置の製造方法 |
| DE19935442C1 (de) * | 1999-07-28 | 2000-12-21 | Siemens Ag | Verfahren zum Herstellen eines Trench-MOS-Leistungstransistors |
| TW411553B (en) * | 1999-08-04 | 2000-11-11 | Mosel Vitelic Inc | Method for forming curved oxide on bottom of trench |
| JP3384365B2 (ja) * | 1999-08-23 | 2003-03-10 | 日本電気株式会社 | 縦型mos電界効果トランジスタおよびその製造方法 |
| JP4379982B2 (ja) * | 1999-11-16 | 2009-12-09 | トヨタ自動車株式会社 | 半導体装置の製造方法 |
| US6391699B1 (en) * | 2000-06-05 | 2002-05-21 | Fairchild Semiconductor Corporation | Method of manufacturing a trench MOSFET using selective growth epitaxy |
| US6444528B1 (en) * | 2000-08-16 | 2002-09-03 | Fairchild Semiconductor Corporation | Selective oxide deposition in the bottom of a trench |
| US6437386B1 (en) * | 2000-08-16 | 2002-08-20 | Fairchild Semiconductor Corporation | Method for creating thick oxide on the bottom surface of a trench structure in silicon |
| US6882000B2 (en) * | 2001-08-10 | 2005-04-19 | Siliconix Incorporated | Trench MIS device with reduced gate-to-drain capacitance |
| WO2003015180A2 (en) * | 2001-08-10 | 2003-02-20 | Siliconix Incorporated | Mis device having a trench gate electrode and method of making the same |
-
2001
- 2001-08-10 US US09/927,320 patent/US6882000B2/en not_active Expired - Lifetime
-
2002
- 2002-07-19 KR KR1020047002073A patent/KR100624683B1/ko not_active Expired - Lifetime
- 2002-07-19 JP JP2003520004A patent/JP2004538648A/ja active Pending
- 2002-07-19 EP EP02750165A patent/EP1417717A2/en not_active Ceased
- 2002-07-19 WO PCT/US2002/022937 patent/WO2003015179A2/en not_active Ceased
- 2002-07-26 TW TW091116779A patent/TW552680B/zh not_active IP Right Cessation
- 2002-10-03 US US10/264,816 patent/US6921697B2/en not_active Expired - Lifetime
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2009
- 2009-07-28 JP JP2009175470A patent/JP5500898B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US20030062570A1 (en) | 2003-04-03 |
| WO2003015179A3 (en) | 2003-12-04 |
| US20030030092A1 (en) | 2003-02-13 |
| US6921697B2 (en) | 2005-07-26 |
| WO2003015179A2 (en) | 2003-02-20 |
| JP5500898B2 (ja) | 2014-05-21 |
| TW552680B (en) | 2003-09-11 |
| JP2004538648A (ja) | 2004-12-24 |
| US6882000B2 (en) | 2005-04-19 |
| EP1417717A2 (en) | 2004-05-12 |
| KR20040051584A (ko) | 2004-06-18 |
| JP2009283969A (ja) | 2009-12-03 |
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