CN113990935A - 一种沟槽碳化硅mosfet器件及其制备方法 - Google Patents
一种沟槽碳化硅mosfet器件及其制备方法 Download PDFInfo
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- CN113990935A CN113990935A CN202111411447.4A CN202111411447A CN113990935A CN 113990935 A CN113990935 A CN 113990935A CN 202111411447 A CN202111411447 A CN 202111411447A CN 113990935 A CN113990935 A CN 113990935A
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- Prior art keywords
- epitaxial layer
- trench
- silicon carbide
- mosfet device
- gate
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 238000002347 injection Methods 0.000 claims description 20
- 239000007924 injection Substances 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 16
- 229920005591 polysilicon Polymers 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 11
- 238000000137 annealing Methods 0.000 claims description 7
- 238000005468 ion implantation Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 238000005530 etching Methods 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 claims description 3
- 239000007943 implant Substances 0.000 claims 2
- 230000005684 electric field Effects 0.000 abstract description 12
- 238000002513 implantation Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- -1 nitrogen ion Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Images
Classifications
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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]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/63—Vertical IGFETs
-
- 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]
- H10D12/01—Manufacture or treatment
- H10D12/031—Manufacture or treatment of IGBTs
-
- 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
- H10D62/124—Shapes, relative sizes or dispositions of the regions of semiconductor bodies or of junctions between the regions
-
- 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
- H10D62/80—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials
- H10D62/83—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group IV materials, e.g. B-doped Si or undoped Ge
- H10D62/832—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group IV materials, e.g. B-doped Si or undoped Ge being Group IV materials comprising two or more elements, e.g. SiGe
- H10D62/8325—Silicon carbide
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- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202111411447.4A CN113990935A (zh) | 2021-11-25 | 2021-11-25 | 一种沟槽碳化硅mosfet器件及其制备方法 |
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CN202111411447.4A CN113990935A (zh) | 2021-11-25 | 2021-11-25 | 一种沟槽碳化硅mosfet器件及其制备方法 |
Publications (1)
Publication Number | Publication Date |
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CN113990935A true CN113990935A (zh) | 2022-01-28 |
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CN202111411447.4A Pending CN113990935A (zh) | 2021-11-25 | 2021-11-25 | 一种沟槽碳化硅mosfet器件及其制备方法 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115579382A (zh) * | 2022-12-12 | 2023-01-06 | 深圳市森国科科技股份有限公司 | 半导体器件的终端结构及其半导体器件 |
CN117936581A (zh) * | 2023-12-22 | 2024-04-26 | 西安龙飞电气技术有限公司 | 一种改进型沟槽型碳化硅mosfet器件及其制造方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005109514A2 (en) * | 2004-05-12 | 2005-11-17 | Toyota Jidosha Kabushiki Kaisha | Insulated gate semiconductor device |
JP2006093193A (ja) * | 2004-09-21 | 2006-04-06 | Toyota Motor Corp | 半導体装置およびその製造方法 |
US20170110571A1 (en) * | 2015-10-20 | 2017-04-20 | Fuji Electric Co., Ltd. | Semiconductor device and method of manufacturing semiconductor device |
CN109065540A (zh) * | 2018-08-06 | 2018-12-21 | 中国科学院半导体研究所 | 一种集成SBD的SiC UMOSFET的结构及制备方法 |
CN218996721U (zh) * | 2021-11-25 | 2023-05-09 | 安徽长飞先进半导体有限公司 | 一种沟槽碳化硅mosfet器件 |
-
2021
- 2021-11-25 CN CN202111411447.4A patent/CN113990935A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005109514A2 (en) * | 2004-05-12 | 2005-11-17 | Toyota Jidosha Kabushiki Kaisha | Insulated gate semiconductor device |
JP2006093193A (ja) * | 2004-09-21 | 2006-04-06 | Toyota Motor Corp | 半導体装置およびその製造方法 |
US20170110571A1 (en) * | 2015-10-20 | 2017-04-20 | Fuji Electric Co., Ltd. | Semiconductor device and method of manufacturing semiconductor device |
CN109065540A (zh) * | 2018-08-06 | 2018-12-21 | 中国科学院半导体研究所 | 一种集成SBD的SiC UMOSFET的结构及制备方法 |
CN218996721U (zh) * | 2021-11-25 | 2023-05-09 | 安徽长飞先进半导体有限公司 | 一种沟槽碳化硅mosfet器件 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115579382A (zh) * | 2022-12-12 | 2023-01-06 | 深圳市森国科科技股份有限公司 | 半导体器件的终端结构及其半导体器件 |
CN117936581A (zh) * | 2023-12-22 | 2024-04-26 | 西安龙飞电气技术有限公司 | 一种改进型沟槽型碳化硅mosfet器件及其制造方法 |
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Address after: 241000 1803, building 3, service outsourcing park, Wuhu high tech Industrial Development Zone, Anhui Province Applicant after: Anhui Changfei Advanced Semiconductor Co.,Ltd. Address before: 241000 1803, building 3, service outsourcing park, high tech Industrial Development Zone, Yijiang District, Wuhu City, Anhui Province Applicant before: WUHU QIDI SEMICONDUCTOR Co.,Ltd. |
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Country or region after: China Address after: No. 82 Limin East Road, Matang Street, Yijiang District, Wuhu City, Anhui Province 241000 Applicant after: Anhui Changfei Advanced Semiconductor Co.,Ltd. Address before: 1803, Building 3, Service Outsourcing Park, High tech Industrial Development Zone, Wuhu City, Anhui Province Applicant before: Anhui Changfei Advanced Semiconductor Co.,Ltd. Country or region before: China |