CN110896026A - 沟槽型mosfet结构及其制造方法 - Google Patents
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- CN110896026A CN110896026A CN201911156668.4A CN201911156668A CN110896026A CN 110896026 A CN110896026 A CN 110896026A CN 201911156668 A CN201911156668 A CN 201911156668A CN 110896026 A CN110896026 A CN 110896026A
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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- 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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Abstract
Description
Claims (17)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911156668.4A CN110896026A (zh) | 2019-11-22 | 2019-11-22 | 沟槽型mosfet结构及其制造方法 |
US17/091,225 US11424344B2 (en) | 2019-11-22 | 2020-11-06 | Trench MOSFET and method for manufacturing the same |
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Application Number | Priority Date | Filing Date | Title |
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CN201911156668.4A CN110896026A (zh) | 2019-11-22 | 2019-11-22 | 沟槽型mosfet结构及其制造方法 |
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CN201911156668.4A Pending CN110896026A (zh) | 2019-11-22 | 2019-11-22 | 沟槽型mosfet结构及其制造方法 |
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US (1) | US11424344B2 (zh) |
CN (1) | CN110896026A (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111403289A (zh) * | 2020-03-30 | 2020-07-10 | 捷捷微电(上海)科技有限公司 | 一种分离栅mosfet的制作方法 |
CN111863969A (zh) * | 2020-07-17 | 2020-10-30 | 上海陆芯电子科技有限公司 | 屏蔽栅沟槽型mosfet器件及其制造方法 |
CN113066860A (zh) * | 2021-02-10 | 2021-07-02 | 华为技术有限公司 | 一种屏蔽栅场效应晶体管的介质层的制造方法及相关产品 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
CN113644028B (zh) * | 2021-08-11 | 2023-10-03 | 重庆万国半导体科技有限公司 | 一种分离栅功率器件及其制造方法 |
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US20090050959A1 (en) * | 2007-08-21 | 2009-02-26 | Madson Gordon K | Method and Structure for Shielded Gate Trench FET |
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2019
- 2019-11-22 CN CN201911156668.4A patent/CN110896026A/zh active Pending
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2020
- 2020-11-06 US US17/091,225 patent/US11424344B2/en active Active
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US20070037327A1 (en) * | 2005-08-09 | 2007-02-15 | Robert Herrick | Structure and method for forming inter-poly dielectric in a shielded gate field effect transistor |
CN101207154A (zh) * | 2006-12-22 | 2008-06-25 | 万国半导体股份有限公司 | 用高密度等离子氧化层作为多晶硅层间绝缘层的分隔栅的构成 |
US20090050959A1 (en) * | 2007-08-21 | 2009-02-26 | Madson Gordon K | Method and Structure for Shielded Gate Trench FET |
CN101785091A (zh) * | 2007-08-21 | 2010-07-21 | 飞兆半导体公司 | 屏蔽的栅极沟槽场效应晶体管的方法和结构 |
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CN102683390A (zh) * | 2011-03-16 | 2012-09-19 | 飞兆半导体公司 | 屏蔽栅极mosfet器件中的多晶硅层间电介质 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111403289A (zh) * | 2020-03-30 | 2020-07-10 | 捷捷微电(上海)科技有限公司 | 一种分离栅mosfet的制作方法 |
CN111403289B (zh) * | 2020-03-30 | 2022-08-09 | 捷捷微电(上海)科技有限公司 | 一种分离栅mosfet的制作方法 |
CN111863969A (zh) * | 2020-07-17 | 2020-10-30 | 上海陆芯电子科技有限公司 | 屏蔽栅沟槽型mosfet器件及其制造方法 |
CN113066860A (zh) * | 2021-02-10 | 2021-07-02 | 华为技术有限公司 | 一种屏蔽栅场效应晶体管的介质层的制造方法及相关产品 |
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