JP5025935B2 - 絶縁ゲート型電界効果トランジスタの製造方法 - Google Patents
絶縁ゲート型電界効果トランジスタの製造方法 Download PDFInfo
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- JP5025935B2 JP5025935B2 JP2005284110A JP2005284110A JP5025935B2 JP 5025935 B2 JP5025935 B2 JP 5025935B2 JP 2005284110 A JP2005284110 A JP 2005284110A JP 2005284110 A JP2005284110 A JP 2005284110A JP 5025935 B2 JP5025935 B2 JP 5025935B2
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- 230000005669 field effect Effects 0.000 title claims description 31
- 238000004519 manufacturing process Methods 0.000 title claims description 28
- 238000000034 method Methods 0.000 title claims description 13
- 239000012535 impurity Substances 0.000 claims description 132
- 238000000926 separation method Methods 0.000 claims description 49
- 239000004065 semiconductor Substances 0.000 claims description 33
- 210000000746 body region Anatomy 0.000 claims description 17
- 239000000758 substrate Substances 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000002513 implantation Methods 0.000 claims description 9
- 238000010030 laminating Methods 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 4
- 238000005530 etching Methods 0.000 claims description 3
- 108091006146 Channels Proteins 0.000 description 57
- 239000010410 layer Substances 0.000 description 54
- 238000009792 diffusion process Methods 0.000 description 14
- 239000011229 interlayer Substances 0.000 description 13
- 238000005468 ion implantation Methods 0.000 description 11
- 239000007790 solid phase Substances 0.000 description 9
- 230000007423 decrease Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 108010075750 P-Type Calcium Channels Proteins 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- 238000000151 deposition Methods 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
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- 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
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- 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
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
- H01L29/08—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions with semiconductor regions connected to an electrode carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- H01L29/0843—Source or drain regions of field-effect devices
- H01L29/0847—Source or drain regions of field-effect devices of field-effect transistors with insulated gate
- H01L29/0852—Source or drain regions of field-effect devices of field-effect transistors with insulated gate of DMOS transistors
- H01L29/0873—Drain regions
- H01L29/0878—Impurity concentration or distribution
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- H—ELECTRICITY
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- 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
- H01L29/42312—Gate electrodes for field effect devices
- H01L29/42316—Gate electrodes for field effect devices for field-effect transistors
- H01L29/4232—Gate electrodes for field effect devices for field-effect transistors with insulated gate
- H01L29/42372—Gate electrodes for field effect devices for field-effect transistors with insulated gate characterised by the conducting layer, e.g. the length, the sectional shape or the lay-out
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- 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
- H01L29/42312—Gate electrodes for field effect devices
- H01L29/42316—Gate electrodes for field effect devices for field-effect transistors
- H01L29/4232—Gate electrodes for field effect devices for field-effect transistors with insulated gate
- H01L29/42372—Gate electrodes for field effect devices for field-effect transistors with insulated gate characterised by the conducting layer, e.g. the length, the sectional shape or the lay-out
- H01L29/4238—Gate electrodes for field effect devices for field-effect transistors with insulated gate characterised by the conducting layer, e.g. the length, the sectional shape or the lay-out characterised by the surface lay-out
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- 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
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- H—ELECTRICITY
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- 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
- H01L29/66727—Vertical DMOS transistors, i.e. VDMOS transistors with a step of recessing the source electrode
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- 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
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- 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)
- Electrodes Of Semiconductors (AREA)
Description
2 n−型半導体層
4 チャネル領域
11 ゲート酸化膜
13 ゲート電極
14 n型不純物領域
14’ n型領域
15 ソース領域
15’ n+型不純物領域
16 層間絶縁膜
16a 固相拡散源
16b 絶縁膜
17 ボディ領域
18 ソース電極
20 溝
21 n+半導体基板
22 n−型エピタキシャル層(ドレイン領域)
24 チャネル領域
31 ゲート酸化膜
33 ゲート電極
35 ソース領域
36 層間絶縁膜
37 ボディ領域
38 ソース電極
50 空乏層
Claims (7)
- 一導電型半導体基板に一導電型半導体層を積層し、該一導電型半導体層表面に第1絶縁膜を形成する工程と、
分離孔により等分割されたゲート電極を前記第1絶縁膜上に形成する工程と、
前記分離孔を第2絶縁膜で被覆し、前記ゲート電極に隣り合う前記半導体層表面に複数の逆導電型のチャネル領域を形成する工程と、
全面に一導電型不純物を注入する工程と、
全面に前記一導電型不純物のピーク濃度の深さより深いピーク濃度で逆導電型不純物を注入する工程と、
前記分離孔および前記ゲート電極を被覆する第3絶縁膜を形成する工程と、
熱処理により前記一導電型不純物および逆導電型不純物を拡散し、前記ゲート電極間の前記チャネル領域表面に連続した一導電型不純物領域を形成し、同時に該一導電型不純物領域より深いボディ領域を形成する工程と、
前記ゲート電極間に前記一導電型不純物領域より深い溝を形成して該一導電型不純物領域を分割し、ソース領域を形成する工程と、
を具備することを特徴とする絶縁ゲート型電界効果トランジスタの製造方法。 - 前記ゲート電極間に露出した前記チャネル領域表面に対して前記一導電型不純物の注入工程と前記逆導電型不純物の注入工程を連続して行うことを特徴とする請求項1に記載の絶縁ゲート型電界効果トランジスタの製造方法。
- 前記分離孔下方に前記半導体層より不純物濃度が高い他の一導電型不純物領域を形成することを特徴とする請求項1に記載の絶縁ゲート型電界効果トランジスタの製造方法。
- 前記第2絶縁膜は他の一導電型不純物を含み、該他の一導電型不純物を拡散して前記他の一導電型不純物領域を形成することを特徴とする請求項3に記載の絶縁ゲート型電界効果トランジスタの製造方法。
- 前記チャネル領域と前記他の一導電型不純物領域は、同一の熱処理工程により形成することを特徴とする請求項3に記載の絶縁ゲート型電界効果トランジスタの製造方法。
- 前記分離孔に露出する前記第1絶縁膜を膜厚制御エッチングすることを特徴とする請求項1に記載の絶縁ゲート型電界効果トランジスタの製造方法。
- 前記ボディ領域と前記チャネル領域の底部が同じ深さに形成されることを特徴とする請求項1に記載の絶縁ゲート型電界効果トランジスタの製造方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005284110A JP5025935B2 (ja) | 2005-09-29 | 2005-09-29 | 絶縁ゲート型電界効果トランジスタの製造方法 |
TW095128675A TWI316757B (en) | 2005-09-29 | 2006-08-04 | Insulation gate type field effect transistor and method for making such transistor |
CNB2006101212065A CN100502044C (zh) | 2005-09-29 | 2006-08-17 | 绝缘栅型场效应晶体管及其制造方法 |
US11/519,208 US20070072352A1 (en) | 2005-09-29 | 2006-09-12 | Insulated gate field effect transistor and manufacturing method thereof |
KR1020060088878A KR100787731B1 (ko) | 2005-09-29 | 2006-09-14 | 절연 게이트형 전계 효과 트랜지스터 및 그 제조 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2005284110A JP5025935B2 (ja) | 2005-09-29 | 2005-09-29 | 絶縁ゲート型電界効果トランジスタの製造方法 |
Publications (2)
Publication Number | Publication Date |
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JP2007096034A JP2007096034A (ja) | 2007-04-12 |
JP5025935B2 true JP5025935B2 (ja) | 2012-09-12 |
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JP2005284110A Expired - Fee Related JP5025935B2 (ja) | 2005-09-29 | 2005-09-29 | 絶縁ゲート型電界効果トランジスタの製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070072352A1 (ja) |
JP (1) | JP5025935B2 (ja) |
KR (1) | KR100787731B1 (ja) |
CN (1) | CN100502044C (ja) |
TW (1) | TWI316757B (ja) |
Families Citing this family (21)
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JP2006295134A (ja) * | 2005-03-17 | 2006-10-26 | Sanyo Electric Co Ltd | 半導体装置およびその製造方法 |
JP2009088005A (ja) * | 2007-09-27 | 2009-04-23 | Sanyo Electric Co Ltd | 半導体装置およびその製造方法 |
US8513712B2 (en) | 2009-09-28 | 2013-08-20 | Taiwan Semiconductor Manufacturing Company, Ltd. | Method and apparatus for forming a semiconductor gate |
US20120126312A1 (en) * | 2010-11-19 | 2012-05-24 | Microchip Technology Incorporated | Vertical dmos-field effect transistor |
US9257517B2 (en) * | 2010-11-23 | 2016-02-09 | Microchip Technology Incorporated | Vertical DMOS-field effect transistor |
US8643067B2 (en) * | 2011-09-30 | 2014-02-04 | Maxim Integrated Products, Inc. | Strapped dual-gate VDMOS device |
CN102931093B (zh) * | 2012-11-21 | 2017-03-08 | 杭州士兰集成电路有限公司 | N沟道耗尽型功率mosfet器件及制造方法 |
JP2014165250A (ja) | 2013-02-22 | 2014-09-08 | Jtekt Corp | 絶縁ゲート型電界効果トランジスタおよびこのトランジスタの製造方法 |
JP2015138960A (ja) * | 2014-01-24 | 2015-07-30 | ローム株式会社 | 半導体装置 |
CN104810287B (zh) * | 2014-01-26 | 2019-04-26 | 北大方正集团有限公司 | 双扩散金属氧化物晶体管制作方法及晶体管器件 |
CN104867973B (zh) * | 2014-02-24 | 2018-12-21 | 北大方正集团有限公司 | 场效应管的制造方法和场效应管 |
CN104409507B (zh) * | 2014-12-08 | 2017-06-27 | 武汉大学 | 低导通电阻vdmos器件及制备方法 |
CN105990152B (zh) * | 2015-03-03 | 2019-05-07 | 北大方正集团有限公司 | 一种vdmos器件及其制作方法 |
JP6696166B2 (ja) * | 2015-08-19 | 2020-05-20 | 富士電機株式会社 | 半導体装置および製造方法 |
EP3198631B1 (en) * | 2015-12-02 | 2018-03-07 | ABB Schweiz AG | Method for manufacturing a semiconductor device |
US11081574B2 (en) | 2017-11-01 | 2021-08-03 | Suzhou Oriental Semiconductor Co., Ltd. | IGBT power device |
WO2019094338A1 (en) * | 2017-11-07 | 2019-05-16 | Microsemi Corporation | Method and assembly for mitigating short channel effects in silicon carbide mosfet devices |
US20210408250A1 (en) * | 2020-06-24 | 2021-12-30 | Monolithic Power Systems, Inc. | Method of distributing metal layers in a power device |
CN113054029B (zh) * | 2021-03-12 | 2022-11-18 | 深圳方正微电子有限公司 | 金属氧化物半导体场效应晶体管及其制备方法和应用 |
CN115117158A (zh) * | 2022-08-31 | 2022-09-27 | 瑶芯微电子科技(上海)有限公司 | 一种具有空心栅极的vdmos及制备方法 |
CN117497600B (zh) * | 2023-12-28 | 2024-05-07 | 深圳天狼芯半导体有限公司 | 超结碳化硅晶体管的结构、制造方法及电子设备 |
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- 2005-09-29 JP JP2005284110A patent/JP5025935B2/ja not_active Expired - Fee Related
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- 2006-08-04 TW TW095128675A patent/TWI316757B/zh not_active IP Right Cessation
- 2006-08-17 CN CNB2006101212065A patent/CN100502044C/zh not_active Expired - Fee Related
- 2006-09-12 US US11/519,208 patent/US20070072352A1/en not_active Abandoned
- 2006-09-14 KR KR1020060088878A patent/KR100787731B1/ko not_active IP Right Cessation
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TWI316757B (en) | 2009-11-01 |
US20070072352A1 (en) | 2007-03-29 |
JP2007096034A (ja) | 2007-04-12 |
CN1941413A (zh) | 2007-04-04 |
TW200713584A (en) | 2007-04-01 |
KR20070036664A (ko) | 2007-04-03 |
CN100502044C (zh) | 2009-06-17 |
KR100787731B1 (ko) | 2007-12-24 |
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