CN111933527A - 沟槽igbt和其制作方法 - Google Patents
沟槽igbt和其制作方法 Download PDFInfo
- Publication number
- CN111933527A CN111933527A CN201910395360.9A CN201910395360A CN111933527A CN 111933527 A CN111933527 A CN 111933527A CN 201910395360 A CN201910395360 A CN 201910395360A CN 111933527 A CN111933527 A CN 111933527A
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- China
- Prior art keywords
- manufacturing
- trench igbt
- semiconductor substrate
- trench
- oxidation
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 47
- 230000003647 oxidation Effects 0.000 claims abstract description 56
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 56
- 239000004065 semiconductor Substances 0.000 claims abstract description 45
- 239000000758 substrate Substances 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 36
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 29
- 229920005591 polysilicon Polymers 0.000 claims abstract description 27
- 239000012535 impurity Substances 0.000 claims abstract description 19
- 150000002500 ions Chemical class 0.000 claims abstract description 19
- 210000000746 body region Anatomy 0.000 claims abstract description 17
- 238000005530 etching Methods 0.000 claims abstract description 11
- 238000000151 deposition Methods 0.000 claims description 6
- 229910052796 boron Inorganic materials 0.000 claims description 3
- -1 boron ions Chemical class 0.000 claims description 3
- 238000005229 chemical vapour deposition Methods 0.000 claims description 3
- 238000001312 dry etching Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 2
- 238000001459 lithography Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
Images
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
- H01L29/66234—Bipolar junction transistors [BJT]
- H01L29/66325—Bipolar junction transistors [BJT] controlled by field-effect, e.g. insulated gate bipolar transistors [IGBT]
- H01L29/66333—Vertical insulated gate bipolar transistors
- H01L29/66348—Vertical insulated gate bipolar transistors with a recessed gate
-
- 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
- H01L29/70—Bipolar devices
- H01L29/72—Transistor-type devices, i.e. able to continuously respond to applied control signals
- H01L29/739—Transistor-type devices, i.e. able to continuously respond to applied control signals controlled by field-effect, e.g. bipolar static induction transistors [BSIT]
- H01L29/7393—Insulated gate bipolar mode transistors, i.e. IGBT; IGT; COMFET
- H01L29/7395—Vertical transistors, e.g. vertical IGBT
- H01L29/7396—Vertical transistors, e.g. vertical IGBT with a non planar surface, e.g. with a non planar gate or with a trench or recess or pillar in the surface of the emitter, base or collector region for improving current density or short circuiting the emitter and base regions
- H01L29/7397—Vertical transistors, e.g. vertical IGBT with a non planar surface, e.g. with a non planar gate or with a trench or recess or pillar in the surface of the emitter, base or collector region for improving current density or short circuiting the emitter and base regions and a gate structure lying on a slanted or vertical surface or formed in a groove, e.g. trench gate IGBT
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)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910395360.9A CN111933527A (zh) | 2019-05-13 | 2019-05-13 | 沟槽igbt和其制作方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910395360.9A CN111933527A (zh) | 2019-05-13 | 2019-05-13 | 沟槽igbt和其制作方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN111933527A true CN111933527A (zh) | 2020-11-13 |
Family
ID=73282697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910395360.9A Pending CN111933527A (zh) | 2019-05-13 | 2019-05-13 | 沟槽igbt和其制作方法 |
Country Status (1)
Country | Link |
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CN (1) | CN111933527A (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112802742A (zh) * | 2021-03-24 | 2021-05-14 | 上海华虹宏力半导体制造有限公司 | 半导体器件的制造方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070138547A1 (en) * | 2005-12-09 | 2007-06-21 | Kabushiki Kaisha Toshiba | Semiconductor device and method of manufacturing the same |
US20090159989A1 (en) * | 2007-12-24 | 2009-06-25 | Jeong Pyo Hong | Semiconductor Device and Method of Fabricating the Same |
CN103000534A (zh) * | 2012-12-26 | 2013-03-27 | 上海宏力半导体制造有限公司 | 沟槽式p型金属氧化物半导体功率晶体管制造方法 |
CN105655246A (zh) * | 2016-01-04 | 2016-06-08 | 株洲南车时代电气股份有限公司 | 一种沟槽式igbt栅极的制作方法 |
CN106384718A (zh) * | 2016-10-21 | 2017-02-08 | 中航(重庆)微电子有限公司 | 一种中高压沟槽型mosfet器件的制作方法及结构 |
CN108615707A (zh) * | 2018-02-13 | 2018-10-02 | 株洲中车时代电气股份有限公司 | 一种具有折叠型复合栅结构的igbt芯片的制作方法 |
-
2019
- 2019-05-13 CN CN201910395360.9A patent/CN111933527A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070138547A1 (en) * | 2005-12-09 | 2007-06-21 | Kabushiki Kaisha Toshiba | Semiconductor device and method of manufacturing the same |
US20090159989A1 (en) * | 2007-12-24 | 2009-06-25 | Jeong Pyo Hong | Semiconductor Device and Method of Fabricating the Same |
CN103000534A (zh) * | 2012-12-26 | 2013-03-27 | 上海宏力半导体制造有限公司 | 沟槽式p型金属氧化物半导体功率晶体管制造方法 |
CN105655246A (zh) * | 2016-01-04 | 2016-06-08 | 株洲南车时代电气股份有限公司 | 一种沟槽式igbt栅极的制作方法 |
CN106384718A (zh) * | 2016-10-21 | 2017-02-08 | 中航(重庆)微电子有限公司 | 一种中高压沟槽型mosfet器件的制作方法及结构 |
CN108615707A (zh) * | 2018-02-13 | 2018-10-02 | 株洲中车时代电气股份有限公司 | 一种具有折叠型复合栅结构的igbt芯片的制作方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112802742A (zh) * | 2021-03-24 | 2021-05-14 | 上海华虹宏力半导体制造有限公司 | 半导体器件的制造方法 |
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Legal Events
Date | Code | Title | Description |
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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: 20210527 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 |
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SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |