CN101521229B - 自对准沟槽累加模式场效应晶体管结构及其制造方法 - Google Patents
自对准沟槽累加模式场效应晶体管结构及其制造方法 Download PDFInfo
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- CN101521229B CN101521229B CN2009100068681A CN200910006868A CN101521229B CN 101521229 B CN101521229 B CN 101521229B CN 2009100068681 A CN2009100068681 A CN 2009100068681A CN 200910006868 A CN200910006868 A CN 200910006868A CN 101521229 B CN101521229 B CN 101521229B
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- 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
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- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
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- H01L29/0611—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse biased devices
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- 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
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- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/417—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
- H01L29/41725—Source or drain electrodes for field effect devices
- H01L29/41766—Source or drain electrodes for field effect devices with at least part of the source or drain electrode having contact below the semiconductor surface, e.g. the source or drain electrode formed at least partially in a groove or with inclusions of conductor inside the semiconductor
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- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/45—Ohmic electrodes
- H01L29/456—Ohmic electrodes on silicon
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- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
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Abstract
Description
Claims (13)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/074,280 US8878292B2 (en) | 2008-03-02 | 2008-03-02 | Self-aligned slotted accumulation-mode field effect transistor (AccuFET) structure and method |
US12/074,280 | 2008-03-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101521229A CN101521229A (zh) | 2009-09-02 |
CN101521229B true CN101521229B (zh) | 2013-03-13 |
Family
ID=41012507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2009100068681A Active CN101521229B (zh) | 2008-03-02 | 2009-02-26 | 自对准沟槽累加模式场效应晶体管结构及其制造方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8878292B2 (zh) |
CN (1) | CN101521229B (zh) |
TW (1) | TWI427788B (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105405882A (zh) * | 2014-08-20 | 2016-03-16 | 敦南科技股份有限公司 | 双沟槽式的功率半导体元件及其制造方法 |
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US20090242973A1 (en) * | 2008-03-31 | 2009-10-01 | Alpha & Omega Semiconductor, Ltd. | Source and body contact structure for trench-dmos devices using polysilicon |
US8216901B2 (en) * | 2009-06-25 | 2012-07-10 | Nico Semiconductor Co., Ltd. | Fabrication method of trenched metal-oxide-semiconductor device |
CN102034822B (zh) * | 2009-09-25 | 2013-03-27 | 力士科技股份有限公司 | 一种具有台阶状沟槽栅和改进的源体接触性能的沟槽mosfet及其制造方法 |
CN102034708B (zh) * | 2009-09-27 | 2012-07-04 | 无锡华润上华半导体有限公司 | 沟槽型dmos晶体管的制作方法 |
TWI455209B (zh) * | 2009-10-12 | 2014-10-01 | Pfc Device Co | 溝渠式金氧半p-n接面蕭基二極體結構及其製作方法 |
CN102097468B (zh) * | 2009-12-15 | 2013-03-13 | 上海华虹Nec电子有限公司 | 沟槽型mosfet结构及其制备方法 |
JP6008377B2 (ja) | 2010-03-03 | 2016-10-19 | ルネサスエレクトロニクス株式会社 | Pチャネル型パワーmosfet |
CN102214574B (zh) * | 2010-04-07 | 2013-06-12 | 中国科学院微电子研究所 | 一种半导体器件的制造方法 |
CN102263019B (zh) * | 2010-05-25 | 2014-03-12 | 科轩微电子股份有限公司 | 自对准沟槽式功率半导体结构的制造方法 |
CN102263132A (zh) * | 2010-05-26 | 2011-11-30 | 中国科学院微电子研究所 | 半导体结构及其制造方法 |
CN102376568B (zh) * | 2010-08-19 | 2015-08-05 | 北大方正集团有限公司 | 在深沟槽肖特基二极管晶圆的深沟槽内淀积多晶硅的方法 |
WO2012055119A1 (zh) * | 2010-10-29 | 2012-05-03 | 上海韦尔半导体股份有限公司 | 一种沟槽式mosfet的侧墙结构及其制造方法 |
JP5858934B2 (ja) | 2011-02-02 | 2016-02-10 | ローム株式会社 | 半導体パワーデバイスおよびその製造方法 |
TWI472029B (zh) * | 2011-03-03 | 2015-02-01 | Monolithic Power Systems Inc | 垂直電容耗盡型功率裝置 |
US8431470B2 (en) * | 2011-04-04 | 2013-04-30 | Alpha And Omega Semiconductor Incorporated | Approach to integrate Schottky in MOSFET |
JP5881322B2 (ja) * | 2011-04-06 | 2016-03-09 | ローム株式会社 | 半導体装置 |
CN107482054B (zh) * | 2011-05-18 | 2021-07-20 | 威世硅尼克斯公司 | 半导体器件 |
KR101172796B1 (ko) | 2011-06-22 | 2012-08-09 | 한국전기연구원 | 트렌치-게이트 축적모드 탄화규소 금속 산화막 반도체 전계효과 트랜지스터에서 자기정렬된 엔-베이스 채널 형성 방법 |
CN102867748B (zh) * | 2011-07-06 | 2015-09-23 | 中国科学院微电子研究所 | 一种晶体管及其制作方法和包括该晶体管的半导体芯片 |
JP2013030618A (ja) | 2011-07-28 | 2013-02-07 | Rohm Co Ltd | 半導体装置 |
JP2013062344A (ja) * | 2011-09-13 | 2013-04-04 | Toshiba Corp | 半導体装置およびその製造方法 |
US8592921B2 (en) * | 2011-12-07 | 2013-11-26 | International Business Machines Corporation | Deep trench embedded gate transistor |
CN103367145A (zh) * | 2012-03-27 | 2013-10-23 | 北大方正集团有限公司 | 一种沟槽型vdmos器件及其制造方法 |
US9054183B2 (en) * | 2012-07-13 | 2015-06-09 | United Silicon Carbide, Inc. | Trenched and implanted accumulation mode metal-oxide-semiconductor field-effect transistor |
KR101529023B1 (ko) * | 2012-10-25 | 2015-06-15 | 도호쿠 다이가쿠 | Accumulation형 MOSFET |
KR101427925B1 (ko) * | 2012-11-15 | 2014-08-08 | 현대자동차 주식회사 | 반도체 소자 및 그 제조 방법 |
US8809948B1 (en) * | 2012-12-21 | 2014-08-19 | Alpha And Omega Semiconductor Incorporated | Device structure and methods of making high density MOSFETs for load switch and DC-DC applications |
US9105494B2 (en) | 2013-02-25 | 2015-08-11 | Alpha and Omega Semiconductors, Incorporated | Termination trench for power MOSFET applications |
CN104037082B (zh) * | 2013-03-04 | 2017-02-15 | 上海华虹宏力半导体制造有限公司 | 用于沟槽功率绝缘栅场效应晶体管的自对准工艺方法 |
JP6170812B2 (ja) | 2013-03-19 | 2017-07-26 | 株式会社東芝 | 半導体装置の製造方法 |
US9437470B2 (en) | 2013-10-08 | 2016-09-06 | Cypress Semiconductor Corporation | Self-aligned trench isolation in integrated circuits |
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