CN104952718B - 一种分栅功率器件的制造方法 - Google Patents
一种分栅功率器件的制造方法 Download PDFInfo
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- CN104952718B CN104952718B CN201510323899.5A CN201510323899A CN104952718B CN 104952718 B CN104952718 B CN 104952718B CN 201510323899 A CN201510323899 A CN 201510323899A CN 104952718 B CN104952718 B CN 104952718B
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 238000009413 insulation Methods 0.000 claims abstract description 80
- 238000005530 etching Methods 0.000 claims abstract description 32
- 239000000758 substrate Substances 0.000 claims abstract description 31
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 16
- 238000001259 photo etching Methods 0.000 claims description 10
- 239000000377 silicon dioxide Substances 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 6
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 5
- 229920005591 polysilicon Polymers 0.000 claims description 5
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 239000013078 crystal Substances 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 9
- 239000004065 semiconductor Substances 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000010200 validation analysis Methods 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
- H01L29/68—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 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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/401—Multistep manufacturing processes
-
- 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
- H01L29/40—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 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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/423—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
-
- 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
- H01L29/66712—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
-
- 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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/417—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
- H01L29/41725—Source or drain electrodes for field effect devices
- H01L29/41766—Source or drain electrodes for field effect devices with at least part of the source or drain electrode having contact below the semiconductor surface, e.g. the source or drain electrode formed at least partially in a groove or with inclusions of conductor inside the semiconductor
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 (8)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510323899.5A CN104952718B (zh) | 2015-06-12 | 2015-06-12 | 一种分栅功率器件的制造方法 |
US15/307,341 US9673299B2 (en) | 2015-04-17 | 2016-03-15 | Method for manufacturing split-gate power device |
DE112016000050.2T DE112016000050B4 (de) | 2015-04-17 | 2016-03-15 | Verfahren zur Herstellung eines Splitgate-Leistungsbauelements |
JP2016570830A JP6310577B2 (ja) | 2015-04-17 | 2016-03-15 | スプリットゲート型パワーデバイスの製造方法 |
PCT/CN2016/076432 WO2016165516A1 (zh) | 2015-04-17 | 2016-03-15 | 分栅功率器件的制造方法 |
KR1020167033055A KR101812440B1 (ko) | 2015-04-17 | 2016-03-15 | 스플릿 게이트 출력소자의 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510323899.5A CN104952718B (zh) | 2015-06-12 | 2015-06-12 | 一种分栅功率器件的制造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN104952718A CN104952718A (zh) | 2015-09-30 |
CN104952718B true CN104952718B (zh) | 2017-09-05 |
Family
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Family Applications (1)
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CN201510323899.5A Active CN104952718B (zh) | 2015-04-17 | 2015-06-12 | 一种分栅功率器件的制造方法 |
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CN (1) | CN104952718B (zh) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101812440B1 (ko) * | 2015-04-17 | 2017-12-26 | 수 조우 오리엔탈 세미컨덕터 콤퍼니 리미티드 | 스플릿 게이트 출력소자의 제조방법 |
CN105513971A (zh) * | 2015-12-25 | 2016-04-20 | 上海华虹宏力半导体制造有限公司 | 具有屏蔽栅的沟槽栅功率器件的制造方法 |
CN105551964B (zh) * | 2015-12-25 | 2018-10-26 | 上海华虹宏力半导体制造有限公司 | 具有屏蔽栅的沟槽分离侧栅mosfet的制造方法 |
CN106057675B (zh) * | 2016-05-31 | 2019-08-13 | 上海华虹宏力半导体制造有限公司 | 屏蔽栅沟槽mosfet的制造方法 |
CN108258027A (zh) * | 2016-12-28 | 2018-07-06 | 苏州东微半导体有限公司 | 一种超级结功率晶体管及其制备方法 |
CN109755238B (zh) * | 2017-11-01 | 2020-12-01 | 苏州东微半导体有限公司 | 一种分栅结构的超结功率器件 |
CN110867443B (zh) * | 2018-08-27 | 2022-02-22 | 苏州东微半导体股份有限公司 | 半导体功率器件 |
CN110957324B (zh) * | 2018-09-27 | 2022-05-17 | 苏州东微半导体股份有限公司 | 一种半导体存储器 |
CN110957325B (zh) * | 2018-09-27 | 2022-04-19 | 苏州东微半导体股份有限公司 | 半导体存储器及其制造方法 |
WO2020063919A1 (zh) * | 2018-09-29 | 2020-04-02 | 苏州东微半导体有限公司 | 半导体功率器件 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1729558A (zh) * | 2002-12-19 | 2006-02-01 | 皇家飞利浦电子股份有限公司 | 垂直分离栅非易失性存储单元及其制造方法 |
CN1897305A (zh) * | 2005-07-15 | 2007-01-17 | 三星电子株式会社 | 垂直沟道半导体器件及其制造方法 |
US7183609B2 (en) * | 2003-12-30 | 2007-02-27 | Dongbu Electronics Co., Ltd. | Semiconductor devices and methods for fabricating the same |
CN101325157A (zh) * | 2007-06-11 | 2008-12-17 | 南亚科技股份有限公司 | 一种存储器结构及其制作方法 |
CN102157527A (zh) * | 2009-12-31 | 2011-08-17 | 三星电子株式会社 | 半导体存储器件 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100607785B1 (ko) * | 2004-12-31 | 2006-08-02 | 동부일렉트로닉스 주식회사 | 스플릿 게이트 플래시 이이피롬의 제조방법 |
-
2015
- 2015-06-12 CN CN201510323899.5A patent/CN104952718B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1729558A (zh) * | 2002-12-19 | 2006-02-01 | 皇家飞利浦电子股份有限公司 | 垂直分离栅非易失性存储单元及其制造方法 |
US7183609B2 (en) * | 2003-12-30 | 2007-02-27 | Dongbu Electronics Co., Ltd. | Semiconductor devices and methods for fabricating the same |
CN1897305A (zh) * | 2005-07-15 | 2007-01-17 | 三星电子株式会社 | 垂直沟道半导体器件及其制造方法 |
CN101325157A (zh) * | 2007-06-11 | 2008-12-17 | 南亚科技股份有限公司 | 一种存储器结构及其制作方法 |
CN102157527A (zh) * | 2009-12-31 | 2011-08-17 | 三星电子株式会社 | 半导体存储器件 |
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CN104952718A (zh) | 2015-09-30 |
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GR01 | Patent grant | ||
CB03 | Change of inventor or designer information |
Inventor after: Mao Zhendong Inventor after: Liu Wei Inventor after: Liu Lei Inventor before: Mao Zhendong Inventor before: Lin Minzhi Inventor before: Liu Wei Inventor before: Liu Lei |
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CB03 | Change of inventor or designer information | ||
CP01 | Change in the name or title of a patent holder |
Address after: C102-1, phase II, international science and Technology Park, 1355 Jinjihu Avenue, Suzhou Industrial Park, Jiangsu Province Patentee after: Suzhou Dongwei Semiconductor Co.,Ltd. Address before: C102-1, phase II, international science and Technology Park, 1355 Jinjihu Avenue, Suzhou Industrial Park, Jiangsu Province Patentee before: SU ZHOU ORIENTAL SEMICONDUCTOR Co.,Ltd. |
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CP01 | Change in the name or title of a patent holder |