CN104078517B - 沟槽式肖特基半导体器件 - Google Patents
沟槽式肖特基半导体器件 Download PDFInfo
- Publication number
- CN104078517B CN104078517B CN201410349022.9A CN201410349022A CN104078517B CN 104078517 B CN104078517 B CN 104078517B CN 201410349022 A CN201410349022 A CN 201410349022A CN 104078517 B CN104078517 B CN 104078517B
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- Prior art keywords
- epitaxial layer
- layer
- conduction type
- groove
- doped region
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 16
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 37
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000004888 barrier function Effects 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims description 36
- 229920005591 polysilicon Polymers 0.000 claims description 20
- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims description 16
- 239000000758 substrate Substances 0.000 claims description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 241000790917 Dioxys <bee> Species 0.000 claims 1
- 229910003978 SiClx Inorganic materials 0.000 claims 1
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 229910052814 silicon oxide Inorganic materials 0.000 abstract description 2
- 230000005684 electric field Effects 0.000 description 16
- 230000000903 blocking effect Effects 0.000 description 8
- 239000002019 doping agent Substances 0.000 description 4
- 238000005036 potential barrier Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
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
- H01L29/86—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
- H01L29/8725—Schottky diodes of the trench MOS barrier type [TMBS]
-
- 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
- H01L29/02—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
- H01L29/0603—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
- 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]
- H01L29/0619—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] with a supplementary region doped oppositely to or in rectifying contact with the semiconductor containing or contacting region, e.g. guard rings with PN or Schottky junction
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)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410349022.9A CN104078517B (zh) | 2014-07-22 | 2014-07-22 | 沟槽式肖特基半导体器件 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410349022.9A CN104078517B (zh) | 2014-07-22 | 2014-07-22 | 沟槽式肖特基半导体器件 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN104078517A CN104078517A (zh) | 2014-10-01 |
CN104078517B true CN104078517B (zh) | 2017-05-10 |
Family
ID=51599676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410349022.9A Active CN104078517B (zh) | 2014-07-22 | 2014-07-22 | 沟槽式肖特基半导体器件 |
Country Status (1)
Country | Link |
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CN (1) | CN104078517B (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105789334B (zh) * | 2016-03-16 | 2018-11-23 | 杭州立昂微电子股份有限公司 | 一种肖特基势垒半导体整流器及其制造方法 |
CN109390336B (zh) * | 2018-12-10 | 2024-03-26 | 西安电子科技大学 | 一种新型宽禁带功率半导体器件及其制作方法 |
CN114927561B (zh) * | 2022-06-30 | 2023-05-02 | 电子科技大学 | 一种碳化硅mosfet器件 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7186609B2 (en) * | 1999-12-30 | 2007-03-06 | Siliconix Incorporated | Method of fabricating trench junction barrier rectifier |
JP4198469B2 (ja) * | 2001-04-11 | 2008-12-17 | シリコン・セミコンダクター・コーポレイション | パワーデバイスとその製造方法 |
JP4047153B2 (ja) * | 2002-12-03 | 2008-02-13 | 株式会社東芝 | 半導体装置 |
US20050199918A1 (en) * | 2004-03-15 | 2005-09-15 | Daniel Calafut | Optimized trench power MOSFET with integrated schottky diode |
TWI384625B (zh) * | 2008-06-30 | 2013-02-01 | Alpha & Omega Semiconductor | 提高蕭特基崩潰電壓且不影響金氧半導體-蕭特基整合裝置之裝置佈局及方法 |
CN101901807B (zh) * | 2010-06-23 | 2011-11-09 | 苏州硅能半导体科技股份有限公司 | 沟槽式肖特基势垒二极管整流器件及制造方法 |
CN203983296U (zh) * | 2014-07-22 | 2014-12-03 | 苏州硅能半导体科技股份有限公司 | 沟槽式肖特基半导体器件 |
-
2014
- 2014-07-22 CN CN201410349022.9A patent/CN104078517B/zh active Active
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Publication number | Publication date |
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CN104078517A (zh) | 2014-10-01 |
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TR01 | Transfer of patent right |
Effective date of registration: 20240207 Address after: 518000 Room 201, building A, 1 front Bay Road, Shenzhen Qianhai cooperation zone, Shenzhen, Guangdong Patentee after: Shenzhen Hemeiyuan Technology Co.,Ltd. Country or region after: Zhong Guo Address before: No. 428 Xinglong Street, Industrial Park, Suzhou City, Jiangsu Province, 215011, 11A Patentee before: SUZHOU SILIKRON SEMICONDUCTOR TECHNOLOGY CO.,LTD. Country or region before: Zhong Guo |
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TR01 | Transfer of patent right |
Effective date of registration: 20240319 Address after: Room 306, Building 2, No.1 Qingshan Road, High tech Zone, Suzhou City, Jiangsu Province, 215100 Patentee after: New Silicon Microelectronics (Suzhou) Co.,Ltd. Country or region after: Zhong Guo Address before: 518000 Room 201, building A, 1 front Bay Road, Shenzhen Qianhai cooperation zone, Shenzhen, Guangdong Patentee before: Shenzhen Hemeiyuan Technology Co.,Ltd. Country or region before: Zhong Guo |
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TR01 | Transfer of patent right |