CN113555448B - 一种基于Ga2O3终端结构的4H-SiC肖特基二极管及制作方法 - Google Patents
一种基于Ga2O3终端结构的4H-SiC肖特基二极管及制作方法 Download PDFInfo
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- CN113555448B CN113555448B CN202110645745.3A CN202110645745A CN113555448B CN 113555448 B CN113555448 B CN 113555448B CN 202110645745 A CN202110645745 A CN 202110645745A CN 113555448 B CN113555448 B CN 113555448B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000010410 layer Substances 0.000 claims abstract description 200
- 229910005191 Ga 2 O 3 Inorganic materials 0.000 claims abstract description 53
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000002344 surface layer Substances 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 56
- 238000002161 passivation Methods 0.000 claims description 49
- 239000000758 substrate Substances 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 9
- 238000005530 etching Methods 0.000 claims description 4
- 238000009472 formulation Methods 0.000 claims 7
- 230000005684 electric field Effects 0.000 abstract description 8
- 230000015556 catabolic process Effects 0.000 abstract description 5
- 230000002093 peripheral effect Effects 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 abstract description 4
- 229910010271 silicon carbide Inorganic materials 0.000 description 96
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 80
- 238000000034 method Methods 0.000 description 12
- 239000004065 semiconductor Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005566 electron beam evaporation Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 239000004642 Polyimide Substances 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000009616 inductively coupled plasma Methods 0.000 description 2
- 238000005468 ion implantation Methods 0.000 description 2
- 238000001755 magnetron sputter deposition Methods 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 238000004151 rapid thermal annealing Methods 0.000 description 2
- 208000033830 Hot Flashes Diseases 0.000 description 1
- 206010060800 Hot flush Diseases 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/86—Types of semiconductor device ; Multistep manufacturing processes therefor controllable only by variation of the electric current supplied, or only the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched
- H01L29/861—Diodes
- H01L29/872—Schottky diodes
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- 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
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—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
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- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—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
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- H01L29/0607—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
- 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
- H01L29/0615—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 by the doping profile or the shape or the arrangement of the PN junction, or with supplementary regions, e.g. junction termination extension [JTE]
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- 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
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66053—Multistep manufacturing processes of devices having a semiconductor body comprising crystalline silicon carbide
- H01L29/6606—Multistep manufacturing processes of devices having a semiconductor body comprising crystalline silicon carbide the devices being controllable only by variation of the electric current supplied or the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched, e.g. two-terminal devices
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CN202110645745.3A CN113555448B (zh) | 2021-06-09 | 2021-06-09 | 一种基于Ga2O3终端结构的4H-SiC肖特基二极管及制作方法 |
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Citations (6)
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JP2017135171A (ja) * | 2016-01-25 | 2017-08-03 | 株式会社テンシックス | 半導体基板及びその製造方法 |
CN108133966A (zh) * | 2018-01-22 | 2018-06-08 | 北京世纪金光半导体有限公司 | 一种集成了周边RCsnubber结构的碳化硅SBD器件元胞结构 |
CN108281491A (zh) * | 2017-12-28 | 2018-07-13 | 厦门市三安集成电路有限公司 | 一种具有台阶结构的碳化硅功率器件及其制备方法 |
CN109449085A (zh) * | 2018-09-12 | 2019-03-08 | 秦皇岛京河科学技术研究院有限公司 | 一种抗浪涌能力增强型的4H-SiC肖特基二极管及其制备方法 |
CN111033758A (zh) * | 2017-08-10 | 2020-04-17 | 株式会社田村制作所 | 二极管 |
CN111725291A (zh) * | 2018-06-14 | 2020-09-29 | 北京世纪金光半导体有限公司 | 一种jte内嵌多沟槽复合终端结构功率器件及制作方法 |
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US10636663B2 (en) * | 2017-03-29 | 2020-04-28 | Toyoda Gosei Co., Ltd. | Method of manufacturing semiconductor device including implanting impurities into an implanted region of a semiconductor layer and annealing the implanted region |
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2017135171A (ja) * | 2016-01-25 | 2017-08-03 | 株式会社テンシックス | 半導体基板及びその製造方法 |
CN111033758A (zh) * | 2017-08-10 | 2020-04-17 | 株式会社田村制作所 | 二极管 |
CN108281491A (zh) * | 2017-12-28 | 2018-07-13 | 厦门市三安集成电路有限公司 | 一种具有台阶结构的碳化硅功率器件及其制备方法 |
CN108133966A (zh) * | 2018-01-22 | 2018-06-08 | 北京世纪金光半导体有限公司 | 一种集成了周边RCsnubber结构的碳化硅SBD器件元胞结构 |
CN111725291A (zh) * | 2018-06-14 | 2020-09-29 | 北京世纪金光半导体有限公司 | 一种jte内嵌多沟槽复合终端结构功率器件及制作方法 |
CN109449085A (zh) * | 2018-09-12 | 2019-03-08 | 秦皇岛京河科学技术研究院有限公司 | 一种抗浪涌能力增强型的4H-SiC肖特基二极管及其制备方法 |
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Effective date of registration: 20220214 Address after: 311400 room 706, building 23, No. 68 Jiangnan Road, Chunjiang street, Fuyang District, Hangzhou City, Zhejiang Province Applicant after: Zhejiang Xinke Semiconductor Co.,Ltd. Address before: 311421 room 908, building 23, No. 68 Jiangnan Road, Chunjiang street, Fuyang District, Hangzhou City, Zhejiang Province Applicant before: Zhejiang Xinguo Semiconductor Co.,Ltd. |
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Denomination of invention: A 4H SiC Schottky diode based on Ga2O3terminal structure and its fabrication method Granted publication date: 20230609 Pledgee: Fuyang Zhejiang rural commercial bank Limited by Share Ltd. the Fuchun River branch Pledgor: Zhejiang Xinke Semiconductor Co.,Ltd. Registration number: Y2024980000125 |