CN104078517A - Groove type schottky semiconductor device - Google Patents
Groove type schottky semiconductor device Download PDFInfo
- Publication number
- CN104078517A CN104078517A CN201410349022.9A CN201410349022A CN104078517A CN 104078517 A CN104078517 A CN 104078517A CN 201410349022 A CN201410349022 A CN 201410349022A CN 104078517 A CN104078517 A CN 104078517A
- Authority
- CN
- China
- Prior art keywords
- conduction type
- epitaxial loayer
- doped region
- type doped
- groove
- 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.)
- Granted
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 19
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 45
- 230000004888 barrier function Effects 0.000 claims abstract description 33
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims description 38
- 229920005591 polysilicon Polymers 0.000 claims description 24
- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 14
- 235000012239 silicon dioxide Nutrition 0.000 claims description 11
- 239000000377 silicon dioxide Substances 0.000 claims description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 229910052814 silicon oxide Inorganic materials 0.000 abstract 1
- 230000005684 electric field Effects 0.000 description 17
- 230000000903 blocking effect Effects 0.000 description 11
- 238000005036 potential barrier Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000002019 doping agent Substances 0.000 description 2
- 238000000034 method 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
- 238000005516 engineering process Methods 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 238000011084 recovery Methods 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 (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410349022.9A CN104078517B (en) | 2014-07-22 | 2014-07-22 | Groove type schottky semiconductor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410349022.9A CN104078517B (en) | 2014-07-22 | 2014-07-22 | Groove type schottky semiconductor device |
Publications (2)
Publication Number | Publication Date |
---|---|
CN104078517A true CN104078517A (en) | 2014-10-01 |
CN104078517B CN104078517B (en) | 2017-05-10 |
Family
ID=51599676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410349022.9A Active CN104078517B (en) | 2014-07-22 | 2014-07-22 | Groove type schottky semiconductor device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN104078517B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105789334A (en) * | 2016-03-16 | 2016-07-20 | 杭州立昂微电子股份有限公司 | Schottky barrier semiconductor rectifier and manufacturing method therefor |
CN109390336A (en) * | 2018-12-10 | 2019-02-26 | 西安电子科技大学 | A kind of novel broad stopband power semiconductor and preparation method thereof |
CN114927561A (en) * | 2022-06-30 | 2022-08-19 | 电子科技大学 | Silicon carbide MOSFET device |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1505173A (en) * | 2002-12-03 | 2004-06-16 | 株式会社东芝 | Semiconductor device |
CN1520616A (en) * | 2001-04-11 | 2004-08-11 | ��˹�������뵼�幫˾ | Power semiconductor devices having laterally extending base shielding regions that inhibit base reach through and methodds of forming same |
US20050199918A1 (en) * | 2004-03-15 | 2005-09-15 | Daniel Calafut | Optimized trench power MOSFET with integrated schottky diode |
US7186609B2 (en) * | 1999-12-30 | 2007-03-06 | Siliconix Incorporated | Method of fabricating trench junction barrier rectifier |
CN101621062A (en) * | 2008-06-30 | 2010-01-06 | 万国半导体股份有限公司 | Device structure and method for improving schottky breakdown voltage without effect of mosfet-schottky integration |
CN101901807A (en) * | 2010-06-23 | 2010-12-01 | 苏州硅能半导体科技股份有限公司 | Channel schottky barrier diode rectifying device and manufacturing method |
CN203983296U (en) * | 2014-07-22 | 2014-12-03 | 苏州硅能半导体科技股份有限公司 | Channel schottky semiconductor device |
-
2014
- 2014-07-22 CN CN201410349022.9A patent/CN104078517B/en active Active
Patent Citations (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 |
CN1520616A (en) * | 2001-04-11 | 2004-08-11 | ��˹�������뵼�幫˾ | Power semiconductor devices having laterally extending base shielding regions that inhibit base reach through and methodds of forming same |
CN1505173A (en) * | 2002-12-03 | 2004-06-16 | 株式会社东芝 | Semiconductor device |
US20050199918A1 (en) * | 2004-03-15 | 2005-09-15 | Daniel Calafut | Optimized trench power MOSFET with integrated schottky diode |
CN101621062A (en) * | 2008-06-30 | 2010-01-06 | 万国半导体股份有限公司 | Device structure and method for improving schottky breakdown voltage without effect of mosfet-schottky integration |
CN101901807A (en) * | 2010-06-23 | 2010-12-01 | 苏州硅能半导体科技股份有限公司 | Channel schottky barrier diode rectifying device and manufacturing method |
CN203983296U (en) * | 2014-07-22 | 2014-12-03 | 苏州硅能半导体科技股份有限公司 | Channel schottky semiconductor device |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105789334A (en) * | 2016-03-16 | 2016-07-20 | 杭州立昂微电子股份有限公司 | Schottky barrier semiconductor rectifier and manufacturing method therefor |
CN105789334B (en) * | 2016-03-16 | 2018-11-23 | 杭州立昂微电子股份有限公司 | A kind of Schottky barrier semiconductor rectifier and its manufacturing method |
CN109390336A (en) * | 2018-12-10 | 2019-02-26 | 西安电子科技大学 | A kind of novel broad stopband power semiconductor and preparation method thereof |
CN109390336B (en) * | 2018-12-10 | 2024-03-26 | 西安电子科技大学 | Novel wide forbidden band power semiconductor device and manufacturing method thereof |
CN114927561A (en) * | 2022-06-30 | 2022-08-19 | 电子科技大学 | Silicon carbide MOSFET device |
CN114927561B (en) * | 2022-06-30 | 2023-05-02 | 电子科技大学 | Silicon carbide MOSFET device |
Also Published As
Publication number | Publication date |
---|---|
CN104078517B (en) | 2017-05-10 |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
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 | ||
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 |