CN110473908A - 一种具有梯形氧化槽的绝缘层上硅ldmos晶体管 - Google Patents
一种具有梯形氧化槽的绝缘层上硅ldmos晶体管 Download PDFInfo
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- CN110473908A CN110473908A CN201910807559.8A CN201910807559A CN110473908A CN 110473908 A CN110473908 A CN 110473908A CN 201910807559 A CN201910807559 A CN 201910807559A CN 110473908 A CN110473908 A CN 110473908A
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- 230000003647 oxidation Effects 0.000 title claims abstract description 123
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 123
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 120
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 120
- 239000010703 silicon Substances 0.000 title claims abstract description 120
- 239000000758 substrate Substances 0.000 claims description 16
- 239000002210 silicon-based material Substances 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 239000002019 doping agent Substances 0.000 claims description 3
- -1 source region Substances 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 abstract description 20
- 230000002028 premature Effects 0.000 abstract description 4
- 230000005684 electric field Effects 0.000 description 10
- 239000004065 semiconductor Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
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- 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
-
- 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
- H01L29/0684—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 the shape, relative sizes or dispositions of the semiconductor regions or junctions between the regions
-
- 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
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/7801—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
- H01L29/7816—Lateral DMOS transistors, i.e. LDMOS transistors
-
- 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
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/7801—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
- H01L29/7816—Lateral DMOS transistors, i.e. LDMOS transistors
- H01L29/7824—Lateral DMOS transistors, i.e. LDMOS transistors with a substrate comprising an insulating layer, e.g. SOI-LDMOS transistors
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)
- Thin Film Transistor (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
Claims (4)
Priority Applications (1)
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CN201910807559.8A CN110473908B (zh) | 2019-08-29 | 2019-08-29 | 一种具有梯形氧化槽的绝缘层上硅ldmos晶体管 |
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CN201910807559.8A CN110473908B (zh) | 2019-08-29 | 2019-08-29 | 一种具有梯形氧化槽的绝缘层上硅ldmos晶体管 |
Publications (2)
Publication Number | Publication Date |
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CN110473908A true CN110473908A (zh) | 2019-11-19 |
CN110473908B CN110473908B (zh) | 2023-01-17 |
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CN201910807559.8A Active CN110473908B (zh) | 2019-08-29 | 2019-08-29 | 一种具有梯形氧化槽的绝缘层上硅ldmos晶体管 |
Country Status (1)
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CN (1) | CN110473908B (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112201694A (zh) * | 2020-10-20 | 2021-01-08 | 杭州电子科技大学温州研究院有限公司 | 一种半椭圆氧化沟槽ldmos晶体管 |
CN112713193A (zh) * | 2020-12-30 | 2021-04-27 | 杭州电子科技大学温州研究院有限公司 | 一种具有凸型扩展埋氧区的沟槽ldmos晶体管 |
CN114171582A (zh) * | 2021-12-07 | 2022-03-11 | 杭州电子科技大学温州研究院有限公司 | 一种具有三角形埋层的绝缘层上硅ldmos晶体管 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0020164A1 (en) * | 1979-05-30 | 1980-12-10 | Xerox Corporation | Monolithic HVMOSFET array |
US20060138549A1 (en) * | 2004-12-29 | 2006-06-29 | Ko Kwang Y | High-voltage transistor and fabricating method thereof |
CN101707205A (zh) * | 2009-11-27 | 2010-05-12 | 南京邮电大学 | 一种具有倾斜表面漂移区的横向功率晶体管 |
US20110018068A1 (en) * | 2009-07-21 | 2011-01-27 | Stmicroelectronics S.R.L | Integrated device incorporating low-voltage components and power components, and process for manufacturing such device |
US20120009740A1 (en) * | 2010-07-06 | 2012-01-12 | Shanghai Institute Of Microsystem And Information Technology, Chinese Academy | Method for fabricating soi high voltage power chip with trenches |
CN104377242A (zh) * | 2013-08-12 | 2015-02-25 | 上海华虹宏力半导体制造有限公司 | Ldmos器件及其制造方法 |
-
2019
- 2019-08-29 CN CN201910807559.8A patent/CN110473908B/zh active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0020164A1 (en) * | 1979-05-30 | 1980-12-10 | Xerox Corporation | Monolithic HVMOSFET array |
US20060138549A1 (en) * | 2004-12-29 | 2006-06-29 | Ko Kwang Y | High-voltage transistor and fabricating method thereof |
US20110018068A1 (en) * | 2009-07-21 | 2011-01-27 | Stmicroelectronics S.R.L | Integrated device incorporating low-voltage components and power components, and process for manufacturing such device |
CN101707205A (zh) * | 2009-11-27 | 2010-05-12 | 南京邮电大学 | 一种具有倾斜表面漂移区的横向功率晶体管 |
US20120009740A1 (en) * | 2010-07-06 | 2012-01-12 | Shanghai Institute Of Microsystem And Information Technology, Chinese Academy | Method for fabricating soi high voltage power chip with trenches |
CN104377242A (zh) * | 2013-08-12 | 2015-02-25 | 上海华虹宏力半导体制造有限公司 | Ldmos器件及其制造方法 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112201694A (zh) * | 2020-10-20 | 2021-01-08 | 杭州电子科技大学温州研究院有限公司 | 一种半椭圆氧化沟槽ldmos晶体管 |
CN112201694B (zh) * | 2020-10-20 | 2022-03-08 | 杭州电子科技大学温州研究院有限公司 | 一种半椭圆氧化沟槽ldmos晶体管 |
CN112713193A (zh) * | 2020-12-30 | 2021-04-27 | 杭州电子科技大学温州研究院有限公司 | 一种具有凸型扩展埋氧区的沟槽ldmos晶体管 |
CN112713193B (zh) * | 2020-12-30 | 2023-05-02 | 杭州电子科技大学温州研究院有限公司 | 一种具有凸型扩展埋氧区的沟槽ldmos晶体管 |
CN114171582A (zh) * | 2021-12-07 | 2022-03-11 | 杭州电子科技大学温州研究院有限公司 | 一种具有三角形埋层的绝缘层上硅ldmos晶体管 |
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CN110473908B (zh) | 2023-01-17 |
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Effective date of registration: 20231114 Address after: 3 / F and 4 / F, building B, Yungu, Zhejiang Province, Nanyang Avenue, Yaoxi street, Longwan District, Wenzhou City, Zhejiang Province Patentee after: HANGZHOU DIANZI UNIVERSITY WENZHOU RESEARCH INSTITUTE Co.,Ltd. Patentee after: HANGZHOU DIANZI University Address before: 3 / F and 4 / F, building B, Yungu, Zhejiang Province, Nanyang Avenue, Yaoxi street, Longwan District, Wenzhou City, Zhejiang Province Patentee before: HANGZHOU DIANZI UNIVERSITY WENZHOU RESEARCH INSTITUTE Co.,Ltd. |