CN1205658C - 具有多厚度栅极氧化层的槽型半导体器件的制造方法 - Google Patents

具有多厚度栅极氧化层的槽型半导体器件的制造方法 Download PDF

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Publication number
CN1205658C
CN1205658C CNB008101647A CN00810164A CN1205658C CN 1205658 C CN1205658 C CN 1205658C CN B008101647 A CNB008101647 A CN B008101647A CN 00810164 A CN00810164 A CN 00810164A CN 1205658 C CN1205658 C CN 1205658C
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trench
layer
polysilicon
oxide
oxide layer
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Expired - Fee Related
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Chinese (zh)
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CN1360735A (zh
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韦恩·B·格拉博斯基
理查德·K·威廉斯
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    • 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
    • H10D30/00—Field-effect transistors [FET]
    • H10D30/60—Insulated-gate field-effect transistors [IGFET]
    • H10D30/63—Vertical IGFETs
    • H10D30/635—Vertical IGFETs having no inversion channels, e.g. vertical accumulation channel FETs [ACCUFET] or normally-on vertical IGFETs
    • 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
    • H10D30/665—Vertical DMOS [VDMOS] FETs having edge termination structures
    • 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
    • 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
    • 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
    • H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
    • H10D84/101—Integrated devices comprising main components and built-in components, e.g. IGBT having built-in freewheel diode
    • H10D84/141—VDMOS having built-in components
    • H10D84/148—VDMOS having built-in components the built-in components being breakdown diodes, e.g. Zener diodes
    • 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
    • H10D30/00—Field-effect transistors [FET]
    • H10D30/80—FETs having rectifying junction gate electrodes
    • H10D30/83—FETs having PN junction gate electrodes
    • H10D30/831—Vertical FETs having PN junction gate electrodes
    • 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 
    • 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
    • H10D62/17—Semiconductor regions connected to electrodes not carrying current to be rectified, amplified or switched, e.g. channel regions
    • H10D62/393—Body regions of DMOS transistors or IGBTs 
    • 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
    • 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
    • H10D64/517—Gate electrodes for field-effect devices for FETs for IGFETs characterised by the conducting layers
    • H10D64/519—Gate electrodes for field-effect devices for FETs for IGFETs characterised by the conducting layers characterised by their top-view geometrical layouts

Landscapes

  • Electrodes Of Semiconductors (AREA)
  • Element Separation (AREA)
  • Insulated Gate Type Field-Effect Transistor (AREA)
  • Formation Of Insulating Films (AREA)
  • Drying Of Semiconductors (AREA)
CNB008101647A 1999-05-25 2000-05-24 具有多厚度栅极氧化层的槽型半导体器件的制造方法 Expired - Fee Related CN1205658C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/318,403 1999-05-25
US09/318,403 US6291298B1 (en) 1999-05-25 1999-05-25 Process of manufacturing Trench gate semiconductor device having gate oxide layer with multiple thicknesses

Publications (2)

Publication Number Publication Date
CN1360735A CN1360735A (zh) 2002-07-24
CN1205658C true CN1205658C (zh) 2005-06-08

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CNB008101647A Expired - Fee Related CN1205658C (zh) 1999-05-25 2000-05-24 具有多厚度栅极氧化层的槽型半导体器件的制造方法

Country Status (9)

Country Link
US (6) US6291298B1 (enExample)
EP (2) EP2020681B1 (enExample)
JP (1) JP4834228B2 (enExample)
KR (1) KR100700322B1 (enExample)
CN (1) CN1205658C (enExample)
AU (1) AU5044600A (enExample)
DE (1) DE60044396D1 (enExample)
TW (1) TW457629B (enExample)
WO (1) WO2000072372A1 (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102024848A (zh) * 2010-11-04 2011-04-20 天津环鑫科技发展有限公司 用于功率器件的沟槽结构及其制造方法
CN101887852B (zh) * 2009-05-13 2012-08-01 上海华虹Nec电子有限公司 深沟槽填充方法
CN104008976A (zh) * 2014-06-09 2014-08-27 苏州东微半导体有限公司 一种沟槽功率器件的制造方法
CN104008975A (zh) * 2014-06-09 2014-08-27 苏州东微半导体有限公司 一种沟槽型功率mos晶体管的制造方法
CN104022041A (zh) * 2014-06-09 2014-09-03 苏州东微半导体有限公司 一种沟槽型mos晶体管的制造方法

Families Citing this family (180)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7084456B2 (en) * 1999-05-25 2006-08-01 Advanced Analogic Technologies, Inc. Trench MOSFET with recessed clamping diode using graded doping
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
TW442972B (en) * 1999-10-01 2001-06-23 Anpec Electronics Corp Fabricating method of trench-type gate power metal oxide semiconductor field effect transistor
US6825087B1 (en) 1999-11-24 2004-11-30 Fairchild Semiconductor Corporation Hydrogen anneal for creating an enhanced trench for trench MOSFETS
US6461918B1 (en) 1999-12-20 2002-10-08 Fairchild Semiconductor Corporation Power MOS device with improved gate charge performance
US20030017164A1 (en) 2001-07-03 2003-01-23 Mallinckrodt Inc. Dye-azide compounds for dual phototherapy
WO2001071817A2 (en) * 2000-03-17 2001-09-27 General Semiconductor, Inc. Dmos transistor having a trench gate electrode and method of making the same
US6391699B1 (en) * 2000-06-05 2002-05-21 Fairchild Semiconductor Corporation Method of manufacturing a trench MOSFET using selective growth epitaxy
JP2002043573A (ja) * 2000-07-28 2002-02-08 Toyota Motor Corp 半導体装置および半導体装置の製造方法
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
US6509233B2 (en) 2000-10-13 2003-01-21 Siliconix Incorporated Method of making trench-gated MOSFET having cesium gate oxide layer
KR100338783B1 (en) * 2000-10-28 2002-06-01 Samsung Electronics Co Ltd Semiconductor device having expanded effective width of active region and fabricating method thereof
US6730606B1 (en) * 2000-11-03 2004-05-04 Semiconductor Components Industries, L.L.C. Trench growth techniques using selective epitaxy
US6368912B1 (en) * 2000-12-08 2002-04-09 Nanya Technology Corporation Method of fabricating an isolation structure between a vertical transistor and a deep trench capacitor
US6677641B2 (en) 2001-10-17 2004-01-13 Fairchild Semiconductor Corporation Semiconductor structure with improved smaller forward voltage loss and higher blocking capability
US7132712B2 (en) 2002-11-05 2006-11-07 Fairchild Semiconductor Corporation Trench structure having one or more diodes embedded therein adjacent a PN junction
US6803626B2 (en) 2002-07-18 2004-10-12 Fairchild Semiconductor Corporation Vertical charge control semiconductor device
US6818513B2 (en) 2001-01-30 2004-11-16 Fairchild Semiconductor Corporation Method of forming a field effect transistor having a lateral depletion structure
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
JP4073176B2 (ja) 2001-04-02 2008-04-09 新電元工業株式会社 半導体装置およびその製造方法
US6764906B2 (en) 2001-07-03 2004-07-20 Siliconix Incorporated Method for making trench mosfet having implanted drain-drift region
US7009247B2 (en) * 2001-07-03 2006-03-07 Siliconix Incorporated Trench MIS device with thick oxide layer in bottom of gate contact trench
US6849898B2 (en) * 2001-08-10 2005-02-01 Siliconix Incorporated Trench MIS device with active trench corners and thick bottom oxide
US20060038223A1 (en) * 2001-07-03 2006-02-23 Siliconix Incorporated Trench MOSFET having drain-drift region comprising stack of implanted regions
US7033876B2 (en) 2001-07-03 2006-04-25 Siliconix Incorporated Trench MIS device having implanted drain-drift region and thick bottom oxide and process for manufacturing the same
US7291884B2 (en) * 2001-07-03 2007-11-06 Siliconix Incorporated Trench MIS device having implanted drain-drift region and thick bottom oxide
US6882000B2 (en) 2001-08-10 2005-04-19 Siliconix Incorporated Trench MIS device with reduced gate-to-drain capacitance
EP1302987A1 (en) * 2001-10-16 2003-04-16 Siliconix, Inc. Trench-gated vertical MOSFET having gate oxide layer containing cesium and process of forming the same
US7061066B2 (en) 2001-10-17 2006-06-13 Fairchild Semiconductor Corporation Schottky diode using charge balance structure
US6674124B2 (en) * 2001-11-15 2004-01-06 General Semiconductor, Inc. Trench MOSFET having low gate charge
JP3891090B2 (ja) * 2001-12-06 2007-03-07 株式会社デンソー 還流ダイオードおよび負荷駆動回路
GB0129450D0 (en) * 2001-12-08 2002-01-30 Koninkl Philips Electronics Nv Trenched semiconductor devices and their manufacture
US7078296B2 (en) 2002-01-16 2006-07-18 Fairchild Semiconductor Corporation Self-aligned trench MOSFETs and methods for making the same
DE10262418B3 (de) * 2002-02-21 2015-10-08 Infineon Technologies Ag MOS-Transistoreinrichtung
KR100859701B1 (ko) 2002-02-23 2008-09-23 페어차일드코리아반도체 주식회사 고전압 수평형 디모스 트랜지스터 및 그 제조 방법
TWI248136B (en) * 2002-03-19 2006-01-21 Infineon Technologies Ag Method for fabricating a transistor arrangement having trench transistor cells having a field electrode
KR100878220B1 (ko) * 2002-05-24 2009-01-13 삼성전자주식회사 액정표시장치
RU2209490C1 (ru) * 2002-05-30 2003-07-27 Красников Геннадий Яковлевич Способ изготовления мощного сильноточного моп транзистора
KR100845227B1 (ko) * 2002-06-27 2008-07-09 매그나칩 반도체 유한회사 소자 분리막 형성 방법
US6855985B2 (en) * 2002-09-29 2005-02-15 Advanced Analogic Technologies, Inc. Modular bipolar-CMOS-DMOS analog integrated circuit & power transistor technology
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
GB0229212D0 (en) * 2002-12-14 2003-01-22 Koninkl Philips Electronics Nv Method of manufacture of a trench semiconductor device
US7332398B2 (en) 2002-12-14 2008-02-19 Nxp B.V. Manufacture of trench-gate semiconductor devices
GB0229210D0 (en) 2002-12-14 2003-01-22 Koninkl Philips Electronics Nv Method of manufacture of a trench semiconductor device
JP5362955B2 (ja) * 2003-01-21 2013-12-11 ノース−ウエスト ユニヴァーシティ 高速スイッチング絶縁ゲート型パワー半導体デバイス
US6861701B2 (en) * 2003-03-05 2005-03-01 Advanced Analogic Technologies, Inc. Trench power MOSFET with planarized gate bus
US6939817B2 (en) * 2003-05-08 2005-09-06 Micron Technology, Inc. Removal of carbon from an insulative layer using ozone
US7638841B2 (en) 2003-05-20 2009-12-29 Fairchild Semiconductor Corporation Power semiconductor devices and methods of manufacture
US7754550B2 (en) * 2003-07-10 2010-07-13 International Rectifier Corporation Process for forming thick oxides on Si or SiC for semiconductor devices
JP3954541B2 (ja) * 2003-08-05 2007-08-08 株式会社東芝 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
DE10361697B4 (de) * 2003-12-30 2011-08-11 Infineon Technologies AG, 81669 Verfahren zum Herstellen einer Grabenstruktur mit Oxidationsauskleidung, zum Herstellen einer integrierten Halbleiterschaltungsanordnung oder eines Chips, zum Herstellen eines Halbleiterbauelements sowie mit diesem Verfahren hergestellte integrierte Halbleiterschaltungsanordnung, hergestellter Chip, hergestelltes Halbleiterbauelement
KR100545177B1 (ko) * 2003-12-31 2006-01-24 동부아남반도체 주식회사 반도체 소자의 소자 분리막 및 그의 제조 방법
JP2005340626A (ja) * 2004-05-28 2005-12-08 Toshiba Corp 半導体装置
US7268395B2 (en) 2004-06-04 2007-09-11 International Rectifier Corporation Deep trench super switch device
US7417266B1 (en) * 2004-06-10 2008-08-26 Qspeed Semiconductor Inc. MOSFET having a JFET embedded as a body diode
JP2008505480A (ja) * 2004-06-30 2008-02-21 アドバンスト・アナロジック・テクノロジーズ・インコーポレイテッド 深い位置にクランプダイオードを備えたトレンチ型ｍｏｓｆｅｔ
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
JP4791723B2 (ja) * 2004-10-18 2011-10-12 株式会社東芝 半導体装置及びその製造方法
US7371641B2 (en) * 2004-10-29 2008-05-13 International Rectifier Corporation Method of making a trench MOSFET with deposited oxide
US20060163650A1 (en) * 2005-01-27 2006-07-27 Ling Ma Power semiconductor device with endless gate trenches
KR100729923B1 (ko) * 2005-03-31 2007-06-18 주식회사 하이닉스반도체 스텝 ｓｔｉ 프로파일을 이용한 낸드 플래쉬 메모리 소자의트랜지스터 형성방법
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
US8115252B2 (en) * 2005-05-12 2012-02-14 M-Mos Sdn.Bhd Elimination of gate oxide weak spot in deep trench
JP4955222B2 (ja) 2005-05-20 2012-06-20 ルネサスエレクトロニクス株式会社 半導体装置の製造方法
US7393749B2 (en) 2005-06-10 2008-07-01 Fairchild Semiconductor Corporation Charge balance field effect transistor
EP1742257B1 (en) * 2005-07-08 2012-09-05 STMicroelectronics Srl Method of manufacturing a semiconductor power device
US7385248B2 (en) 2005-08-09 2008-06-10 Fairchild Semiconductor Corporation Shielded gate field effect transistor with improved inter-poly dielectric
CN101288175B (zh) * 2005-08-17 2010-10-06 国际整流器公司 具有相互连接的栅极沟槽的功率半导体设备
US7943990B2 (en) * 2005-08-17 2011-05-17 International Rectifier Corporation Power semiconductor device with interconnected gate trenches
US7446374B2 (en) 2006-03-24 2008-11-04 Fairchild Semiconductor Corporation High density trench FET with integrated Schottky diode and method of manufacture
JP4622905B2 (ja) * 2006-03-24 2011-02-02 トヨタ自動車株式会社 絶縁ゲート型半導体装置の製造方法
US7319256B1 (en) 2006-06-19 2008-01-15 Fairchild Semiconductor Corporation Shielded gate trench FET with the shield and gate electrodes being connected together
US8642441B1 (en) 2006-12-15 2014-02-04 Spansion Llc Self-aligned STI with single poly for manufacturing a flash memory device
KR100824205B1 (ko) * 2006-12-26 2008-04-21 매그나칩 반도체 유한회사 Dmos 트랜지스터 및 그 제조방법
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
JP5183959B2 (ja) * 2007-04-23 2013-04-17 新日本無線株式会社 Ｍｏｓｆｅｔ型半導体装置の製造方法
US8222874B2 (en) 2007-06-26 2012-07-17 Vishay-Siliconix Current mode boost converter using slope compensation
US8129779B2 (en) 2007-09-03 2012-03-06 Rohm Co., Ltd. Trench gate type VDMOSFET device with thicker gate insulation layer portion for reducing gate to source capacitance
EP2208229A4 (en) 2007-09-21 2011-03-16 Fairchild Semiconductor SUPER TRANSITION STRUCTURES FOR PERFORMANCE ARRANGEMENTS AND MANUFACTURING PROCESSES
JP2009088188A (ja) * 2007-09-28 2009-04-23 Sanyo Electric Co Ltd トレンチゲート型トランジスタ及びその製造方法
WO2009041742A1 (ja) 2007-09-28 2009-04-02 Sanyo Electric Co., Ltd. トレンチゲート型トランジスタ及びその製造方法
TWI383500B (zh) * 2007-10-12 2013-01-21 Promos Technologies Inc 功率金氧半導體陣列
TW200921912A (en) * 2007-11-05 2009-05-16 Anpec Electronics Corp Power transistor capable of decreasing capacitance between gate and drain
KR100970282B1 (ko) * 2007-11-19 2010-07-15 매그나칩 반도체 유한회사 트렌치 ｍｏｓｆｅｔ 및 그 제조방법
JP5266738B2 (ja) * 2007-12-05 2013-08-21 トヨタ自動車株式会社 トレンチゲート型半導体装置の製造方法
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
JP2009182114A (ja) * 2008-01-30 2009-08-13 Elpida Memory Inc 半導体装置およびその製造方法
JP5452876B2 (ja) * 2008-03-13 2014-03-26 ローム株式会社 半導体装置およびその製造方法
KR101535222B1 (ko) * 2008-04-17 2015-07-08 삼성전자주식회사 반도체 소자 및 그의 제조 방법
US7919388B2 (en) * 2008-05-30 2011-04-05 Freescale Semiconductor, Inc. Methods for fabricating semiconductor devices having reduced gate-drain capacitance
US7838389B2 (en) * 2008-05-30 2010-11-23 Freescale Semiconductor, Inc. Enclosed void cavity for low dielectric constant insulator
US7807576B2 (en) * 2008-06-20 2010-10-05 Fairchild Semiconductor Corporation Structure and method for forming a thick bottom dielectric (TBD) for trench-gate devices
US8642459B2 (en) 2008-08-28 2014-02-04 Infineon Technologies Ag Method for forming a semiconductor device with an isolation region on a gate electrode
TWI414019B (zh) * 2008-09-11 2013-11-01 He Jian Technology Suzhou Co Ltd 一種閘氧化層的製造方法
US20120273916A1 (en) 2011-04-27 2012-11-01 Yedinak Joseph A Superjunction Structures for Power Devices and Methods of Manufacture
US7910983B2 (en) * 2008-09-30 2011-03-22 Infineon Technologies Austria Ag MOS transistor having an increased gate-drain capacitance
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
CN101859700B (zh) * 2009-04-09 2012-05-30 上海先进半导体制造股份有限公司 多晶硅淀积工艺
CN101866849B (zh) * 2009-04-16 2012-06-27 上海华虹Nec电子有限公司 在沟槽底部制备氧化膜的方法
JP5613995B2 (ja) * 2009-04-28 2014-10-29 富士電機株式会社 炭化珪素半導体装置およびその製造方法
US8058670B2 (en) * 2009-06-04 2011-11-15 Force—MOS Technology Corporation Insulated gate bipolar transistor (IGBT) with monolithic deep body clamp diode to prevent latch-up
US8264066B2 (en) * 2009-07-08 2012-09-11 Taiwan Semiconductor Manufacturing Company, Ltd. Liner formation in 3DIC structures
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
US8129778B2 (en) * 2009-12-02 2012-03-06 Fairchild Semiconductor Corporation Semiconductor devices and methods for making the same
CN102097378B (zh) * 2009-12-10 2013-12-04 力士科技股份有限公司 一种沟槽金属氧化物半导体场效应管的制造方法
US20110198689A1 (en) * 2010-02-17 2011-08-18 Suku Kim Semiconductor devices containing trench mosfets with superjunctions
WO2011109559A2 (en) 2010-03-02 2011-09-09 Kyle Terrill Structures and methods of fabricating dual gate devices
US8378392B2 (en) * 2010-04-07 2013-02-19 Force Mos Technology Co., Ltd. Trench MOSFET with body region having concave-arc shape
US8432000B2 (en) 2010-06-18 2013-04-30 Fairchild Semiconductor Corporation Trench MOS barrier schottky rectifier with a planar surface using CMP techniques
US8415747B2 (en) * 2010-12-28 2013-04-09 Infineon Technologies Austria Ag Semiconductor device including diode
US8598654B2 (en) 2011-03-16 2013-12-03 Fairchild Semiconductor Corporation MOSFET device with thick trench bottom oxide
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
US8772868B2 (en) 2011-04-27 2014-07-08 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
WO2012158977A2 (en) 2011-05-18 2012-11-22 Vishay-Siliconix Semiconductor device
US20130023097A1 (en) * 2011-07-14 2013-01-24 Purtell Robert J U-mos trench profile optimization and etch damage removal using microwaves
TWI413193B (zh) * 2011-08-11 2013-10-21 Super Group Semiconductor Co Ltd 溝槽式功率金氧半場效電晶體之製作方法
KR101776319B1 (ko) 2011-08-23 2017-09-08 현대자동차주식회사 반도체 소자
CN103000521B (zh) * 2011-09-13 2015-05-27 帅群微电子股份有限公司 沟槽式功率金氧半场效晶体管的制作方法
JP5704039B2 (ja) * 2011-10-06 2015-04-22 信越半導体株式会社 貼り合わせｓｏｉウェーハの製造方法
US8633094B2 (en) 2011-12-01 2014-01-21 Power Integrations, Inc. GaN high voltage HFET with passivation plus gate dielectric multilayer structure
US8940620B2 (en) 2011-12-15 2015-01-27 Power Integrations, Inc. Composite wafer for fabrication of semiconductor devices
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
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
US8642425B2 (en) * 2012-05-29 2014-02-04 Semiconductor Components Industries, Llc Method of making an insulated gate semiconductor device and structure
JP2013258333A (ja) * 2012-06-13 2013-12-26 Toshiba Corp 電力用半導体装置
CN103578952B (zh) * 2012-08-09 2016-12-28 中国科学院微电子研究所 半导体器件制造方法
JP2014056913A (ja) 2012-09-12 2014-03-27 Sumitomo Electric Ind Ltd 炭化珪素半導体装置
JP5811973B2 (ja) * 2012-09-12 2015-11-11 住友電気工業株式会社 炭化珪素半導体装置の製造方法
JP6056292B2 (ja) * 2012-09-12 2017-01-11 住友電気工業株式会社 炭化珪素半導体装置の製造方法
CN103824764A (zh) * 2012-11-19 2014-05-28 上海华虹宏力半导体制造有限公司 一种沟槽型mos器件中沟槽栅的制备方法
TWI521693B (zh) 2012-11-27 2016-02-11 財團法人工業技術研究院 蕭基能障二極體及其製造方法
CN103943503A (zh) * 2013-01-23 2014-07-23 上海华虹宏力半导体制造有限公司 Mosfet的bto结构制造工艺方法
US8928037B2 (en) 2013-02-28 2015-01-06 Power Integrations, Inc. Heterostructure power transistor with AlSiN passivation layer
US9349856B2 (en) * 2013-03-26 2016-05-24 Toyoda Gosei Co., Ltd. Semiconductor device including first interface and second interface as an upper surface of a convex protruded from first interface and manufacturing device thereof
US10249721B2 (en) 2013-04-04 2019-04-02 Infineon Technologies Austria Ag Semiconductor device including a gate trench and a source trench
JP6131689B2 (ja) * 2013-04-16 2017-05-24 住友電気工業株式会社 炭化珪素半導体装置の製造方法
JP2014207403A (ja) * 2013-04-16 2014-10-30 住友電気工業株式会社 炭化珪素半導体装置の製造方法
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
US9570570B2 (en) * 2013-07-17 2017-02-14 Cree, Inc. Enhanced gate dielectric for a field effect device with a trenched gate
US9666663B2 (en) 2013-08-09 2017-05-30 Infineon Technologies Ag Semiconductor device with cell trench structures and contacts and method of manufacturing a semiconductor device
CN107078161A (zh) 2014-08-19 2017-08-18 维西埃-硅化物公司 电子电路
CN105632931B (zh) 2014-11-04 2020-04-28 台湾积体电路制造股份有限公司 半导体器件的制造方法及半导体器件
JP6514035B2 (ja) * 2015-05-27 2019-05-15 株式会社豊田中央研究所 半導体装置
CN106910767A (zh) * 2015-12-23 2017-06-30 株洲南车时代电气股份有限公司 沟槽栅igbt制作方法及沟槽栅igbt
CN105514022B (zh) * 2015-12-31 2018-04-17 上海华虹宏力半导体制造有限公司 在沟槽内部表面形成场氧化硅的方法
CN105702570A (zh) * 2016-01-29 2016-06-22 上海华虹宏力半导体制造有限公司 沟槽型mos器件中沟槽底部形成屏蔽膜层的方法
TWI715711B (zh) * 2017-01-25 2021-01-11 聯華電子股份有限公司 半導體元件及其製造方法
JP6724844B2 (ja) * 2017-03-30 2020-07-15 豊田合成株式会社 半導体装置
DE102017108738B4 (de) * 2017-04-24 2022-01-27 Infineon Technologies Ag SiC-HALBLEITERVORRICHTUNG MIT EINEM VERSATZ IN EINEM GRABENBODEN UND HERSTELLUNGSVERFAHREN HIERFÜR
JP7179276B2 (ja) * 2017-09-29 2022-11-29 株式会社タムラ製作所 電界効果トランジスタ
KR102471277B1 (ko) 2018-09-19 2022-11-28 삼성전자주식회사 게이트 절연층을 갖는 반도체 소자
US11217541B2 (en) 2019-05-08 2022-01-04 Vishay-Siliconix, LLC Transistors with electrically active chip seal ring and methods of manufacture
CN112447507B (zh) * 2019-08-30 2024-06-18 株洲中车时代半导体有限公司 一种提高沟槽栅击穿特性的goi测试样片制造方法
US11218144B2 (en) 2019-09-12 2022-01-04 Vishay-Siliconix, LLC Semiconductor device with multiple independent gates
CN113130652B (zh) * 2020-01-16 2025-05-16 全宇昕科技股份有限公司 金属氧化物半导体场效晶体管及其制造方法
CN111180316A (zh) * 2020-02-22 2020-05-19 重庆伟特森电子科技有限公司 一种碳化硅厚底氧化层沟槽mos制备方法
CN111477679B (zh) * 2020-04-17 2023-06-13 重庆伟特森电子科技有限公司 不对称沟槽型SiC-MOSFET栅的制备方法
CN111489961A (zh) * 2020-04-17 2020-08-04 重庆伟特森电子科技有限公司 沟槽转角处栅氧具有高场强承受力的SiC-MOSFET栅的制备方法
CN111489963B (zh) * 2020-04-17 2023-04-18 重庆伟特森电子科技有限公司 一种沟槽转角处具有厚栅氧化层的SiC-MOSFET栅的制备方法
CN111403487B (zh) * 2020-05-07 2024-02-06 创能动力科技有限公司 一种集成mosfet及二极管的半导体装置及其制造方法
US11527618B2 (en) 2020-07-18 2022-12-13 Semiconductor Components Industries, Llc Up-diffusion suppression in a power MOSFET
US11855140B2 (en) 2020-09-29 2023-12-26 Taiwan Semiconductor Manufacturing Co., Ltd. Gate oxide of nanostructure transistor with increased corner thickness
CN112309975B (zh) * 2020-10-27 2024-02-02 杭州士兰微电子股份有限公司 双向功率器件的制造方法
CN113066867B (zh) * 2021-03-15 2022-09-09 无锡新洁能股份有限公司 高可靠的碳化硅mosfet器件及其工艺方法
US11302776B1 (en) 2021-05-31 2022-04-12 Genesic Semiconductor Inc. Method and manufacture of robust, high-performance devices
US11830943B2 (en) * 2021-07-26 2023-11-28 Analog Power Conversion LLC RF SiC MOSFET with recessed gate dielectric
CN115513061A (zh) * 2022-11-22 2022-12-23 广东芯粤能半导体有限公司 半导体结构的制备方法及半导体结构
CN115939192B (zh) * 2022-11-30 2025-07-18 联合微电子中心有限责任公司 一种具有高k金属栅结构的半导体器件及其制作方法
US20250254909A1 (en) * 2024-02-01 2025-08-07 Wolfspeed, Inc. Power semiconductor devices including integrated polysilicon devices

Family Cites Families (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US78814A (en) * 1868-06-09 John p
JP2647884B2 (ja) * 1988-01-27 1997-08-27 株式会社日立製作所 半導体装置の製造方法
US4967245A (en) * 1988-03-14 1990-10-30 Siliconix Incorporated Trench power MOSFET device
US5283201A (en) * 1988-05-17 1994-02-01 Advanced Power Technology, Inc. High density power device fabrication process
JPH06232163A (ja) * 1993-02-05 1994-08-19 Omron Corp 縦型ｍｏｓｆｅｔ装置及びその製造方法
US5357397A (en) * 1993-03-15 1994-10-18 Hewlett-Packard Company Electric field emitter device for electrostatic discharge protection of integrated circuits
US5843581A (en) * 1993-06-03 1998-12-01 Cryovac, Inc. Barrier blend and food packaging film containing the blend
US5773871A (en) * 1993-06-24 1998-06-30 Northern Telecom Limited Integrated circuit structure and method of fabrication thereof
JPH07122749A (ja) * 1993-09-01 1995-05-12 Toshiba Corp 半導体装置及びその製造方法
US5529943A (en) * 1994-09-30 1996-06-25 United Microelectronics Corporation Method of making buried bit line ROM with low bit line resistance
DE19636302C2 (de) * 1995-09-06 1998-08-20 Denso Corp Siliziumkarbidhalbleitervorrichtung und Verfahren zur Herstellung
KR0159075B1 (ko) * 1995-11-11 1998-12-01 김광호 트렌치 dmos장치 및 그의 제조방법
JPH09181304A (ja) * 1995-12-21 1997-07-11 Toyota Motor Corp 半導体装置及びその製造方法
US5637898A (en) * 1995-12-22 1997-06-10 North Carolina State University Vertical field effect transistors having improved breakdown voltage capability and low on-state resistance
JPH09246550A (ja) * 1996-03-05 1997-09-19 Toyota Central Res & Dev Lab Inc 半導体装置，半導体装置の製造方法，絶縁ゲート型半導体装置および絶縁ゲート型半導体装置の製造方法
JPH09266309A (ja) * 1996-03-27 1997-10-07 Toyota Central Res & Dev Lab Inc 半導体装置およびその製造方法
US5770878A (en) * 1996-04-10 1998-06-23 Harris Corporation Trench MOS gate device
JPH09283535A (ja) * 1996-04-18 1997-10-31 Toyota Motor Corp 半導体装置の製造方法
US6236099B1 (en) * 1996-04-22 2001-05-22 International Rectifier Corp. Trench MOS device and process for radhard device
US5872392A (en) * 1996-04-30 1999-02-16 Nippon Steel Corporation Semiconductor device and a method of fabricating the same
US5824580A (en) 1996-07-30 1998-10-20 International Business Machines Corporation Method of manufacturing an insulated gate field effect transistor
US5937296A (en) * 1996-12-20 1999-08-10 Siemens Aktiengesellschaft Memory cell that includes a vertical transistor and a trench capacitor
JP3904648B2 (ja) * 1997-01-31 2007-04-11 株式会社ルネサステクノロジ 半導体装置
JPH10294456A (ja) * 1997-04-17 1998-11-04 Toshiba Corp 半導体装置
US5851900A (en) * 1997-04-28 1998-12-22 Mosel Vitelic Inc. Method of manufacturing a shallow trench isolation for a semiconductor device
US5872058A (en) * 1997-06-17 1999-02-16 Novellus Systems, Inc. High aspect ratio gapfill process by using HDP
JP3976374B2 (ja) * 1997-07-11 2007-09-19 三菱電機株式会社 トレンチｍｏｓゲート構造を有する半導体装置及びその製造方法
US5981356A (en) * 1997-07-28 1999-11-09 Integrated Device Technology, Inc. Isolation trenches with protected corners
US6206970B1 (en) * 1997-09-03 2001-03-27 Micron Technology, Inc. Semiconductor wafer processor, semiconductor processor gas filtering system and semiconductor processing methods
US5843820A (en) * 1997-09-29 1998-12-01 Vanguard International Semiconductor Corporation Method of fabricating a new dynamic random access memory (DRAM) cell having a buried horizontal trench capacitor
US6383864B2 (en) * 1997-09-30 2002-05-07 Siemens Aktiengesellschaft Memory cell for dynamic random access memory (DRAM)
US5943581A (en) 1997-11-05 1999-08-24 Vanguard International Semiconductor Corporation Method of fabricating a buried reservoir capacitor structure for high-density dynamic random access memory (DRAM) circuits
US6960818B1 (en) * 1997-12-30 2005-11-01 Siemens Aktiengesellschaft Recessed shallow trench isolation structure nitride liner and method for making same
US6091105A (en) * 1998-03-30 2000-07-18 Advanced Micro Devices, Inc. Method of making a self-aligned dopant enhanced RTA MOSFET
US5989978A (en) * 1998-07-16 1999-11-23 Chartered Semiconductor Manufacturing, Ltd. Shallow trench isolation of MOSFETS with reduced corner parasitic currents
US6074909A (en) * 1998-07-31 2000-06-13 Siemens Aktiengesellschaft Apparatus and method for forming controlled deep trench top isolation layers
US6143624A (en) * 1998-10-14 2000-11-07 Advanced Micro Devices, Inc. Shallow trench isolation formation with spacer-assisted ion implantation
US6150219A (en) * 1998-11-19 2000-11-21 United Microelectronics Corp. Method for fabricating a high bias device
US6144054A (en) * 1998-12-04 2000-11-07 International Business Machines Corporation DRAM cell having an annular signal transfer region
US6235606B1 (en) 1999-01-04 2001-05-22 United Microelectronics Corp. Method of fabricating shallow trench isolation
US6165882A (en) * 1999-04-02 2000-12-26 Advanced Micro Devices, Inc. Polysilicon gate having a metal plug, for reduced gate resistance, within a trench extending into the polysilicon layer of the gate
US6413822B2 (en) * 1999-04-22 2002-07-02 Advanced Analogic Technologies, Inc. Super-self-aligned fabrication process of trench-gate DMOS with overlying device layer
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
US6200881B1 (en) * 1999-07-23 2001-03-13 Worldwide Semiconductor Manufacturing Corp. Method of forming a shallow trench isolation
US6265295B1 (en) * 1999-09-03 2001-07-24 Taiwan Semiconductor Manufacturing Company Method of preventing tilting over
US6344415B1 (en) * 1999-09-15 2002-02-05 United Microelectronics Corp. Method for forming a shallow trench isolation structure
US6882000B2 (en) * 2001-08-10 2005-04-19 Siliconix Incorporated Trench MIS device with reduced gate-to-drain capacitance
US6784505B2 (en) 2002-05-03 2004-08-31 Fairchild Semiconductor Corporation Low voltage high density trench-gated power device with uniformly doped channel and its edge termination technique
US6919259B2 (en) * 2002-10-21 2005-07-19 Taiwan Semiconductor Manufacturing Co., Ltd Method for STI etching using endpoint detection
US6903013B2 (en) * 2003-05-16 2005-06-07 Chartered Semiconductor Manufacturing Ltd. Method to fill a trench and tunnel by using ALD seed layer and electroless plating
US6800509B1 (en) * 2003-06-24 2004-10-05 Anpec Electronics Corporation Process for enhancement of voltage endurance and reduction of parasitic capacitance for a trench power MOSFET
JP2005026380A (ja) * 2003-06-30 2005-01-27 Toshiba Corp 不揮発性メモリを含む半導体装置及びその製造方法
US7078814B2 (en) * 2004-05-25 2006-07-18 International Business Machines Corporation Method of forming a semiconductor device having air gaps and the structure so formed

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101887852B (zh) * 2009-05-13 2012-08-01 上海华虹Nec电子有限公司 深沟槽填充方法
CN102024848A (zh) * 2010-11-04 2011-04-20 天津环鑫科技发展有限公司 用于功率器件的沟槽结构及其制造方法
CN102290343A (zh) * 2010-11-04 2011-12-21 天津环鑫科技发展有限公司 一种用于功率器件的沟槽栅制造方法
CN102290343B (zh) * 2010-11-04 2013-01-16 天津环鑫科技发展有限公司 一种用于功率器件的沟槽栅制造方法
CN104008976A (zh) * 2014-06-09 2014-08-27 苏州东微半导体有限公司 一种沟槽功率器件的制造方法
CN104008975A (zh) * 2014-06-09 2014-08-27 苏州东微半导体有限公司 一种沟槽型功率mos晶体管的制造方法
CN104022041A (zh) * 2014-06-09 2014-09-03 苏州东微半导体有限公司 一种沟槽型mos晶体管的制造方法

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US6900100B2 (en) 2005-05-31
CN1360735A (zh) 2002-07-24
US20050215013A1 (en) 2005-09-29
US7282412B2 (en) 2007-10-16
KR20020037726A (ko) 2002-05-22

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