CN101859705A - 具有单掩膜预定栅极沟槽和触点沟槽的高密度沟槽金属氧化物半导体场效应管 - Google Patents
具有单掩膜预定栅极沟槽和触点沟槽的高密度沟槽金属氧化物半导体场效应管 Download PDFInfo
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- CN101859705A CN101859705A CN201010113308A CN201010113308A CN101859705A CN 101859705 A CN101859705 A CN 101859705A CN 201010113308 A CN201010113308 A CN 201010113308A CN 201010113308 A CN201010113308 A CN 201010113308A CN 101859705 A CN101859705 A CN 101859705A
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- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
Images
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
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66568—Lateral single gate silicon transistors
- H01L29/66613—Lateral single gate silicon transistors with a gate recessing step, e.g. using local oxidation
- H01L29/66621—Lateral single gate silicon transistors with a gate recessing step, e.g. using local oxidation using etching to form a recess at the gate location
-
- 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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/423—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
- H01L29/42312—Gate electrodes for field effect devices
- H01L29/42316—Gate electrodes for field effect devices for field-effect transistors
- H01L29/4232—Gate electrodes for field effect devices for field-effect transistors with insulated gate
- H01L29/42356—Disposition, e.g. buried gate electrode
- H01L29/4236—Disposition, e.g. buried gate electrode within a trench, e.g. trench gate electrode, groove gate electrode
-
- 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
-
- 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
- H01L21/26—Bombardment with radiation
- H01L21/263—Bombardment with radiation with high-energy radiation
- H01L21/265—Bombardment with radiation with high-energy radiation producing ion implantation
- H01L21/26586—Bombardment with radiation with high-energy radiation producing ion implantation characterised by the angle between the ion beam and the crystal planes or the main crystal surface
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)
- Manufacturing & Machinery (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims (20)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/362,414 | 2009-01-29 | ||
US12/362,414 US7767526B1 (en) | 2009-01-29 | 2009-01-29 | High density trench MOSFET with single mask pre-defined gate and contact trenches |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101859705A true CN101859705A (zh) | 2010-10-13 |
CN101859705B CN101859705B (zh) | 2012-09-05 |
Family
ID=42354483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010101133089A Active CN101859705B (zh) | 2009-01-29 | 2010-01-26 | 具有单掩膜预定栅极沟槽和触点沟槽的高密度沟槽金属氧化物半导体场效应管 |
Country Status (3)
Country | Link |
---|---|
US (2) | US7767526B1 (zh) |
CN (1) | CN101859705B (zh) |
TW (1) | TWI446416B (zh) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102005379A (zh) * | 2010-10-25 | 2011-04-06 | 上海宏力半导体制造有限公司 | 提高沟槽栅顶角栅氧可靠性的方法 |
CN102856210A (zh) * | 2012-08-23 | 2013-01-02 | 上海宏力半导体制造有限公司 | 半导体结构的形成方法以及vdmos晶体管的形成方法 |
CN103000533A (zh) * | 2012-12-24 | 2013-03-27 | 上海宏力半导体制造有限公司 | 自对准超结功率晶体管的制作方法 |
CN104779166A (zh) * | 2015-04-04 | 2015-07-15 | 复旦大学 | 一种沟槽式分栅功率器件及其制造方法 |
CN106158629A (zh) * | 2015-03-23 | 2016-11-23 | 北大方正集团有限公司 | Mosfet器件的制作方法 |
CN106257684A (zh) * | 2015-06-16 | 2016-12-28 | 北大方正集团有限公司 | Vdmos器件的制作方法及vdmos器件 |
CN114068328A (zh) * | 2021-11-25 | 2022-02-18 | 成都森未科技有限公司 | 一种自对准沟槽栅结构igbt的制备方法 |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011066303A (ja) * | 2009-09-18 | 2011-03-31 | Elpida Memory Inc | 半導体装置の製造方法 |
US8138605B2 (en) * | 2009-10-26 | 2012-03-20 | Alpha & Omega Semiconductor, Inc. | Multiple layer barrier metal for device component formed in contact trench |
US8580667B2 (en) | 2010-12-14 | 2013-11-12 | Alpha And Omega Semiconductor Incorporated | Self aligned trench MOSFET with integrated diode |
US8431470B2 (en) | 2011-04-04 | 2013-04-30 | Alpha And Omega Semiconductor Incorporated | Approach to integrate Schottky in MOSFET |
US8502302B2 (en) | 2011-05-02 | 2013-08-06 | Alpha And Omega Semiconductor Incorporated | Integrating Schottky diode into power MOSFET |
US8507978B2 (en) | 2011-06-16 | 2013-08-13 | Alpha And Omega Semiconductor Incorporated | Split-gate structure in trench-based silicon carbide power device |
CN103199053B (zh) * | 2013-04-12 | 2015-08-19 | 矽力杰半导体技术(杭州)有限公司 | 沟槽的形成方法及半导体结构 |
CN104299903B (zh) * | 2013-07-16 | 2017-06-06 | 上海华虹宏力半导体制造有限公司 | 沟槽栅mosfet的制造方法 |
CN105405763B (zh) * | 2014-07-08 | 2018-12-28 | 北大方正集团有限公司 | 沟槽型超结功率器件的制造方法 |
US10403712B2 (en) * | 2016-06-02 | 2019-09-03 | Infineon Technologies Americas Corp. | Combined gate trench and contact etch process and related structure |
US10056461B2 (en) | 2016-09-30 | 2018-08-21 | Alpha And Omega Semiconductor Incorporated | Composite masking self-aligned trench MOSFET |
US9905675B1 (en) | 2016-12-22 | 2018-02-27 | Infineon Technologies Americas Corp. | Gate and field electrode trench formation process |
CN108630540B (zh) | 2017-03-24 | 2021-05-28 | 中芯国际集成电路制造(上海)有限公司 | 半导体装置及其制造方法 |
US10777661B2 (en) | 2018-03-01 | 2020-09-15 | Ipower Semiconductor | Method of manufacturing shielded gate trench MOSFET devices |
WO2019169361A1 (en) * | 2018-03-01 | 2019-09-06 | Hamza Yilmaz | Self-aligned trench mosfet structures and methods |
US11251297B2 (en) | 2018-03-01 | 2022-02-15 | Ipower Semiconductor | Shielded gate trench MOSFET devices |
KR102662233B1 (ko) | 2019-02-28 | 2024-05-02 | 삼성전자주식회사 | 이미지 센서 |
US11469313B2 (en) | 2020-01-16 | 2022-10-11 | Ipower Semiconductor | Self-aligned trench MOSFET and IGBT structures and methods of fabrication |
US11776994B2 (en) | 2021-02-16 | 2023-10-03 | Alpha And Omega Semiconductor International Lp | SiC MOSFET with reduced channel length and high Vth |
CN113707549A (zh) * | 2021-08-18 | 2021-11-26 | 深圳市美浦森半导体有限公司 | 一种降低mosfet衬底电阻的制作方法及其器件 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004057791B4 (de) * | 2004-11-30 | 2018-12-13 | Infineon Technologies Ag | Trenchtransistor sowie Verfahren zu dessen Herstellung |
US8362547B2 (en) * | 2005-02-11 | 2013-01-29 | Alpha & Omega Semiconductor Limited | MOS device with Schottky barrier controlling layer |
US20060273380A1 (en) * | 2005-06-06 | 2006-12-07 | M-Mos Sdn.Bhd. | Source contact and metal scheme for high density trench MOSFET |
US7449354B2 (en) * | 2006-01-05 | 2008-11-11 | Fairchild Semiconductor Corporation | Trench-gated FET for power device with active gate trenches and gate runner trench utilizing one-mask etch |
KR100745917B1 (ko) * | 2006-01-23 | 2007-08-02 | 주식회사 하이닉스반도체 | 반도체 소자의 제조 방법 |
US7902597B2 (en) * | 2006-03-22 | 2011-03-08 | Samsung Electronics Co., Ltd. | Transistors with laterally extended active regions and methods of fabricating same |
-
2009
- 2009-01-29 US US12/362,414 patent/US7767526B1/en not_active Expired - Fee Related
-
2010
- 2010-01-26 CN CN2010101133089A patent/CN101859705B/zh active Active
- 2010-01-27 TW TW099102268A patent/TWI446416B/zh active
- 2010-07-30 US US12/847,863 patent/US7879676B2/en active Active
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102005379A (zh) * | 2010-10-25 | 2011-04-06 | 上海宏力半导体制造有限公司 | 提高沟槽栅顶角栅氧可靠性的方法 |
CN102005379B (zh) * | 2010-10-25 | 2015-08-19 | 上海华虹宏力半导体制造有限公司 | 提高沟槽栅顶角栅氧可靠性的方法 |
CN102856210A (zh) * | 2012-08-23 | 2013-01-02 | 上海宏力半导体制造有限公司 | 半导体结构的形成方法以及vdmos晶体管的形成方法 |
CN103000533A (zh) * | 2012-12-24 | 2013-03-27 | 上海宏力半导体制造有限公司 | 自对准超结功率晶体管的制作方法 |
CN103000533B (zh) * | 2012-12-24 | 2016-08-24 | 上海华虹宏力半导体制造有限公司 | 自对准超结功率晶体管的制作方法 |
CN106158629A (zh) * | 2015-03-23 | 2016-11-23 | 北大方正集团有限公司 | Mosfet器件的制作方法 |
CN106158629B (zh) * | 2015-03-23 | 2019-03-19 | 北大方正集团有限公司 | Mosfet器件的制作方法 |
CN104779166A (zh) * | 2015-04-04 | 2015-07-15 | 复旦大学 | 一种沟槽式分栅功率器件及其制造方法 |
CN104779166B (zh) * | 2015-04-04 | 2017-11-17 | 复旦大学 | 一种沟槽式分栅功率器件及其制造方法 |
CN106257684A (zh) * | 2015-06-16 | 2016-12-28 | 北大方正集团有限公司 | Vdmos器件的制作方法及vdmos器件 |
CN114068328A (zh) * | 2021-11-25 | 2022-02-18 | 成都森未科技有限公司 | 一种自对准沟槽栅结构igbt的制备方法 |
CN114068328B (zh) * | 2021-11-25 | 2023-03-24 | 成都森未科技有限公司 | 一种自对准沟槽栅结构igbt的制备方法 |
Also Published As
Publication number | Publication date |
---|---|
US20100291744A1 (en) | 2010-11-18 |
US7879676B2 (en) | 2011-02-01 |
US7767526B1 (en) | 2010-08-03 |
US20100190307A1 (en) | 2010-07-29 |
CN101859705B (zh) | 2012-09-05 |
TW201029058A (en) | 2010-08-01 |
TWI446416B (zh) | 2014-07-21 |
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Address after: The United States of California Sunnyvale mercury Street No. 495 Patentee after: ALPHA & OMEGA SEMICONDUCTOR, Ltd. Address before: The United States of California Sunnyvale mercury Street No. 495 Patentee before: Alpha and Omega Semiconductor Inc. |
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