CN111834221B - Ldmos和其制作方法 - Google Patents
Ldmos和其制作方法 Download PDFInfo
- Publication number
- CN111834221B CN111834221B CN201910299950.1A CN201910299950A CN111834221B CN 111834221 B CN111834221 B CN 111834221B CN 201910299950 A CN201910299950 A CN 201910299950A CN 111834221 B CN111834221 B CN 111834221B
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- CN
- China
- Prior art keywords
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- sti
- ldmos
- manufacturing
- polysilicon 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.)
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 39
- 239000004065 semiconductor Substances 0.000 title claims abstract description 9
- 229910044991 metal oxide Inorganic materials 0.000 title description 3
- 150000004706 metal oxides Chemical class 0.000 title description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 34
- 229920005591 polysilicon Polymers 0.000 claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 239000012535 impurity Substances 0.000 claims abstract description 29
- 150000002500 ions Chemical class 0.000 claims abstract description 29
- 229920002120 photoresistant polymer Polymers 0.000 claims abstract description 24
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 230000000903 blocking effect Effects 0.000 claims abstract description 12
- 238000002513 implantation Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 26
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 3
- -1 boron ions Chemical class 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 18
- 239000002184 metal Substances 0.000 description 4
- 238000002955 isolation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007943 implant Substances 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
- H01L29/66007—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
- H01L29/66681—Lateral DMOS transistors, i.e. LDMOS transistors
- H01L29/66689—Lateral DMOS transistors, i.e. LDMOS transistors with a step of forming an insulating sidewall spacer
-
- 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
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)
- Manufacturing & Machinery (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910299950.1A CN111834221B (zh) | 2019-04-15 | 2019-04-15 | Ldmos和其制作方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910299950.1A CN111834221B (zh) | 2019-04-15 | 2019-04-15 | Ldmos和其制作方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111834221A CN111834221A (zh) | 2020-10-27 |
CN111834221B true CN111834221B (zh) | 2024-01-30 |
Family
ID=72914739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910299950.1A Active CN111834221B (zh) | 2019-04-15 | 2019-04-15 | Ldmos和其制作方法 |
Country Status (1)
Country | Link |
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CN (1) | CN111834221B (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112117332B (zh) * | 2020-11-02 | 2023-08-22 | 上海华虹宏力半导体制造有限公司 | Ldmos器件及工艺方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106129117A (zh) * | 2016-07-29 | 2016-11-16 | 东南大学 | 一种高可靠性的横向双扩散金属氧化物半导体管 |
CN107887437A (zh) * | 2016-09-30 | 2018-04-06 | 中芯国际集成电路制造(上海)有限公司 | Ldmos晶体管及其形成方法、半导体器件及其形成方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI265632B (en) * | 2005-11-07 | 2006-11-01 | Macronix Int Co Ltd | Laterally double-diffused metal oxide semiconductor transistor and fabricating method the same |
US7575977B2 (en) * | 2007-03-26 | 2009-08-18 | Tower Semiconductor Ltd. | Self-aligned LDMOS fabrication method integrated deep-sub-micron VLSI process, using a self-aligned lithography etches and implant process |
US8222130B2 (en) * | 2009-02-23 | 2012-07-17 | Globalfoundries Singapore Pte. Ltd. | High voltage device |
US20150137230A1 (en) * | 2013-11-20 | 2015-05-21 | United Microelectronics Corp. | Laterally diffused metal oxide semiconductor and manufacturing method thereof |
-
2019
- 2019-04-15 CN CN201910299950.1A patent/CN111834221B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106129117A (zh) * | 2016-07-29 | 2016-11-16 | 东南大学 | 一种高可靠性的横向双扩散金属氧化物半导体管 |
CN107887437A (zh) * | 2016-09-30 | 2018-04-06 | 中芯国际集成电路制造(上海)有限公司 | Ldmos晶体管及其形成方法、半导体器件及其形成方法 |
Also Published As
Publication number | Publication date |
---|---|
CN111834221A (zh) | 2020-10-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
CB02 | Change of applicant information | ||
CB02 | Change of applicant information |
Address after: No.385, Hongcao Road, Xuhui District, Shanghai 200233 Applicant after: SHANGHAI ADVANCED SEMICONDUCTO Address before: No.385, Hongcao Road, Xuhui District, Shanghai 200233 Applicant before: ADVANCED SEMICONDUCTOR MANUFACTURING Co.,Ltd. |
|
TA01 | Transfer of patent application right | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20210519 Address after: 200131 No.600 Yunshui Road, Lingang New District, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai Applicant after: Shanghai Jita Semiconductor Co.,Ltd. Address before: No.385, Hongcao Road, Xuhui District, Shanghai 200233 Applicant before: SHANGHAI ADVANCED SEMICONDUCTO |
|
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |