CN114664934A - 一种含有场板的dmos晶体管及其制作方法 - Google Patents
一种含有场板的dmos晶体管及其制作方法 Download PDFInfo
- Publication number
- CN114664934A CN114664934A CN202210559949.XA CN202210559949A CN114664934A CN 114664934 A CN114664934 A CN 114664934A CN 202210559949 A CN202210559949 A CN 202210559949A CN 114664934 A CN114664934 A CN 114664934A
- Authority
- CN
- China
- Prior art keywords
- oxide layer
- region
- heavily doped
- body region
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title abstract description 6
- 210000000746 body region Anatomy 0.000 claims description 63
- 238000000151 deposition Methods 0.000 claims description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 20
- 238000005530 etching Methods 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 13
- 238000009792 diffusion process Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 11
- 235000012239 silicon dioxide Nutrition 0.000 claims description 10
- 239000000377 silicon dioxide Substances 0.000 claims description 10
- 238000002513 implantation Methods 0.000 claims description 8
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 5
- 229920005591 polysilicon Polymers 0.000 claims description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 5
- 238000004544 sputter deposition Methods 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 3
- 230000005684 electric field Effects 0.000 abstract description 10
- 230000015556 catabolic process Effects 0.000 abstract description 8
- 238000009826 distribution Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 239000004065 semiconductor Substances 0.000 description 6
- 230000007547 defect Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000000969 carrier Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 238000000927 vapour-phase epitaxy Methods 0.000 description 2
- 229910002601 GaN Inorganic materials 0.000 description 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 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
- H01L29/7813—Vertical DMOS transistors, i.e. VDMOS transistors with trench gate electrode, e.g. UMOS 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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/402—Field plates
- H01L29/407—Recessed field plates, e.g. trench field plates, buried field plates
-
- 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
- H01L29/66734—Vertical DMOS transistors, i.e. VDMOS transistors with a step of recessing the gate electrode, e.g. to form a trench gate electrode
Abstract
Description
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210559949.XA CN114664934B (zh) | 2022-05-23 | 2022-05-23 | 一种含有场板的dmos晶体管及其制作方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210559949.XA CN114664934B (zh) | 2022-05-23 | 2022-05-23 | 一种含有场板的dmos晶体管及其制作方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN114664934A true CN114664934A (zh) | 2022-06-24 |
CN114664934B CN114664934B (zh) | 2022-08-02 |
Family
ID=82037637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202210559949.XA Active CN114664934B (zh) | 2022-05-23 | 2022-05-23 | 一种含有场板的dmos晶体管及其制作方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN114664934B (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116779665A (zh) * | 2023-08-22 | 2023-09-19 | 深圳芯能半导体技术有限公司 | 一种栅极电容可调的igbt芯片及其制作方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105185819A (zh) * | 2015-10-10 | 2015-12-23 | 工业和信息化部电子第五研究所华东分所 | 一种环形栅半导体功率器件和制备方法 |
CN109065628A (zh) * | 2018-08-21 | 2018-12-21 | 电子科技大学 | 一种体区变掺杂的槽栅dmos器件 |
CN112713184A (zh) * | 2019-10-24 | 2021-04-27 | 南通尚阳通集成电路有限公司 | 具有屏蔽栅的沟槽栅mosfet及其制造方法 |
-
2022
- 2022-05-23 CN CN202210559949.XA patent/CN114664934B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105185819A (zh) * | 2015-10-10 | 2015-12-23 | 工业和信息化部电子第五研究所华东分所 | 一种环形栅半导体功率器件和制备方法 |
CN109065628A (zh) * | 2018-08-21 | 2018-12-21 | 电子科技大学 | 一种体区变掺杂的槽栅dmos器件 |
CN112713184A (zh) * | 2019-10-24 | 2021-04-27 | 南通尚阳通集成电路有限公司 | 具有屏蔽栅的沟槽栅mosfet及其制造方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116779665A (zh) * | 2023-08-22 | 2023-09-19 | 深圳芯能半导体技术有限公司 | 一种栅极电容可调的igbt芯片及其制作方法 |
Also Published As
Publication number | Publication date |
---|---|
CN114664934B (zh) | 2022-08-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7898031B2 (en) | Semiconductor device with tapered trenches and impurity concentration gradients | |
US8829608B2 (en) | Semiconductor device | |
JP4068597B2 (ja) | 半導体装置 | |
JP2014135494A (ja) | 二重並列チャネル構造を持つ半導体素子及びその半導体素子の製造方法 | |
CN102479805A (zh) | 一种超级结半导体元件及其制造方法 | |
JP2000223705A (ja) | 半導体装置 | |
CN103972287A (zh) | 半导体装置 | |
CN107464837B (zh) | 一种超结功率器件 | |
TW202006956A (zh) | 具有整合的偽肖特基二極體於源極接觸溝槽之功率金屬氧化物半導體場效電晶體 | |
CN111048420B (zh) | 横向双扩散晶体管的制造方法 | |
US11342433B2 (en) | Silicon carbide devices, semiconductor devices and methods for forming silicon carbide devices and semiconductor devices | |
CN114664934B (zh) | 一种含有场板的dmos晶体管及其制作方法 | |
CN114464670A (zh) | 一种超低比导的超结mosfet及其制备方法 | |
US6570218B1 (en) | MOSFET with a buried gate | |
CN107785433A (zh) | 一种阶梯高k介质层宽带隙半导体纵向双扩散金属氧化物半导体场效应管 | |
WO2023116383A1 (zh) | 带有超结结构的绝缘栅双极型晶体管及其制备方法 | |
CN114744027B (zh) | 碳化硅ldmosfet器件制造方法及碳化硅ldmosfet器件 | |
CN110212026A (zh) | 超结mos器件结构及其制备方法 | |
US11728423B2 (en) | Integrated planar-trench gate power MOSFET | |
CN116190438A (zh) | 一种AlGaN/GaN垂直型高电子迁移率晶体管及其制作方法 | |
WO2022062281A1 (zh) | 一种高阈值的功率半导体器件及其制造方法 | |
CN116072712A (zh) | 沟槽栅半导体器件及其制造方法 | |
CN112599600A (zh) | 垂直双扩散晶体管及其制造方法 | |
CN111477680A (zh) | 双通道均匀电场调制横向双扩散金属氧化物宽带隙半导体场效应管及制作方法 | |
CN111430465A (zh) | 一种n型垂直槽栅金属氧化物半导体器件栅极引入应力的结构 |
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 | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20240130 Address after: No. 88, Wenchang East Road, Yangzhou, Jiangsu 225000 Patentee after: Jiangsu Daoyuan Technology Group Co.,Ltd. Country or region after: China Address before: 211135 enlightenment star Nanjing maker space G41, second floor, No. 188, Qidi street, Qilin science and Technology Innovation Park, Qixia District, Nanjing, Jiangsu Province Patentee before: Jiangsu Peregrine Microelectronics Co.,Ltd. Country or region before: China |