CN108155239B - 垂直双扩散金属氧化物晶体管及其制作方法 - Google Patents
垂直双扩散金属氧化物晶体管及其制作方法 Download PDFInfo
- Publication number
- CN108155239B CN108155239B CN201711396268.1A CN201711396268A CN108155239B CN 108155239 B CN108155239 B CN 108155239B CN 201711396268 A CN201711396268 A CN 201711396268A CN 108155239 B CN108155239 B CN 108155239B
- Authority
- CN
- China
- Prior art keywords
- type
- polysilicon
- range
- gate oxide
- oxide layer
- 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.)
- Expired - Fee Related
Links
- 229910044991 metal oxide Inorganic materials 0.000 title claims abstract description 18
- 150000004706 metal oxides Chemical class 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 63
- 229920005591 polysilicon Polymers 0.000 claims abstract description 50
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 48
- 210000000746 body region Anatomy 0.000 claims abstract description 39
- 229910052751 metal Inorganic materials 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims abstract description 24
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 24
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 23
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 21
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 239000012535 impurity Substances 0.000 claims abstract description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 238000005530 etching Methods 0.000 claims description 5
- 150000002500 ions Chemical class 0.000 claims description 4
- 238000001259 photo etching Methods 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- 229910000676 Si alloy Inorganic materials 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 238000002513 implantation Methods 0.000 claims description 3
- 238000005468 ion implantation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 2
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 238000009792 diffusion process Methods 0.000 description 8
- 230000005669 field effect Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. 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
- H01L29/7802—Vertical DMOS transistors, i.e. VDMOS transistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. 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
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66674—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
- H01L29/66712—Vertical DMOS transistors, i.e. VDMOS transistors
Abstract
Description
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711396268.1A CN108155239B (zh) | 2017-12-21 | 2017-12-21 | 垂直双扩散金属氧化物晶体管及其制作方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711396268.1A CN108155239B (zh) | 2017-12-21 | 2017-12-21 | 垂直双扩散金属氧化物晶体管及其制作方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN108155239A CN108155239A (zh) | 2018-06-12 |
CN108155239B true CN108155239B (zh) | 2020-08-28 |
Family
ID=62464906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201711396268.1A Expired - Fee Related CN108155239B (zh) | 2017-12-21 | 2017-12-21 | 垂直双扩散金属氧化物晶体管及其制作方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN108155239B (zh) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104810289A (zh) * | 2014-01-27 | 2015-07-29 | 北大方正集团有限公司 | 一种vdmos管的制造方法和vdmos |
CN105244279A (zh) * | 2014-07-10 | 2016-01-13 | 北大方正集团有限公司 | 一种平面型vdmos器件及其制作方法 |
-
2017
- 2017-12-21 CN CN201711396268.1A patent/CN108155239B/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104810289A (zh) * | 2014-01-27 | 2015-07-29 | 北大方正集团有限公司 | 一种vdmos管的制造方法和vdmos |
CN105244279A (zh) * | 2014-07-10 | 2016-01-13 | 北大方正集团有限公司 | 一种平面型vdmos器件及其制作方法 |
Also Published As
Publication number | Publication date |
---|---|
CN108155239A (zh) | 2018-06-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5452062B2 (ja) | 炭化珪素半導体装置の製造方法 | |
CN107316899B (zh) | 半超结器件及其制造方法 | |
JP2006511974A (ja) | 注入されたドレインドリフト領域および厚い底部酸化物を有するトレンチmis装置およびそれを製造するためのプロセス | |
WO2013077068A1 (ja) | 半導体装置の製造方法 | |
CN104576347A (zh) | Igbt背面金属化的改善方法 | |
JP2008078397A (ja) | 絶縁ゲート型半導体装置の製造方法 | |
JP2006114834A (ja) | 半導体装置 | |
JP5213520B2 (ja) | 半導体装置の製造方法 | |
US8426275B2 (en) | Fabrication method of trenched power MOSFET | |
TWI469193B (zh) | 高密度溝槽式功率半導體結構與其製造方法 | |
CN104241132A (zh) | Ldmos及其制造方法 | |
JP2007294759A (ja) | 半導体装置およびその製造方法 | |
CN108110056B (zh) | 垂直双扩散场效应晶体管及其制作方法 | |
CN108155239B (zh) | 垂直双扩散金属氧化物晶体管及其制作方法 | |
CN108133894B (zh) | 沟槽型垂直双扩散金属氧化物晶体管及其制作方法 | |
CN108054210B (zh) | 沟槽型垂直双扩散金属氧化物晶体管及其制作方法 | |
JPH10125906A (ja) | 半導体装置及びその製造方法 | |
CN105097545A (zh) | 一种沟槽型vdmos器件及其制造方法 | |
CN107342224B (zh) | Vdmos器件的制作方法 | |
CN104916686A (zh) | 一种vdmos器件及其制造方法 | |
CN115911087A (zh) | 一种提高uis性能的sgt-mosfet及其制造方法 | |
EP2673806A1 (en) | Semiconductor device and related fabrication methods | |
CN112309853A (zh) | 屏蔽栅极沟槽结构的制备方法 | |
CN108054099B (zh) | 半导体功率器件的制作方法 | |
CN108039372B (zh) | 沟槽型垂直双扩散金属氧化物晶体管及其制作方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
TA01 | Transfer of patent application right | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20200806 Address after: 210000 Kechuang building, Futian Road, Zhetang street, Lishui Economic Development Zone, Nanjing City, Jiangsu Province Applicant after: Nanjing Lishui hi tech Venture Capital Management Co.,Ltd. Address before: 518000 Guangdong city of Shenzhen province Baoan District Fuyong Street Peace community Junfeng Industrial Zone A3 building the first floor Applicant before: SHENZHEN JINGTE SMART MANUFACTURING TECHNOLOGY Co.,Ltd. |
|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20210115 Address after: 211299 science and technology innovation center, No.5 Shiqiu Avenue, Shiqiu street, Lishui District, Nanjing City, Jiangsu Province Patentee after: Jiangsu Qinglian Optoelectronic Technology Research Institute Co., Ltd Address before: 210000 Kechuang building, Futian Road, Zhetang street, Lishui Economic Development Zone, Nanjing, Jiangsu Province Patentee before: Nanjing Lishui hi tech Venture Capital Management Co.,Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200828 Termination date: 20201221 |