KR100500096B1 - 반도체장치 및 그 제조방법 - Google Patents
반도체장치 및 그 제조방법 Download PDFInfo
- Publication number
- KR100500096B1 KR100500096B1 KR10-2002-0034338A KR20020034338A KR100500096B1 KR 100500096 B1 KR100500096 B1 KR 100500096B1 KR 20020034338 A KR20020034338 A KR 20020034338A KR 100500096 B1 KR100500096 B1 KR 100500096B1
- Authority
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- South Korea
- Prior art keywords
- type
- oxide film
- trench
- channel stop
- silicon oxide
- Prior art date
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 102
- 238000004519 manufacturing process Methods 0.000 title abstract description 37
- 239000000758 substrate Substances 0.000 claims abstract description 115
- 239000012535 impurity Substances 0.000 claims abstract description 67
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 71
- 229910052814 silicon oxide Inorganic materials 0.000 abstract description 71
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 69
- 229910052710 silicon Inorganic materials 0.000 abstract description 69
- 239000010703 silicon Substances 0.000 abstract description 69
- 229910021420 polycrystalline silicon Inorganic materials 0.000 abstract description 48
- 229920005591 polysilicon Polymers 0.000 abstract description 48
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 26
- 229910052782 aluminium Inorganic materials 0.000 abstract description 26
- 230000000694 effects Effects 0.000 abstract description 13
- 230000000087 stabilizing effect Effects 0.000 abstract description 4
- 239000010408 film Substances 0.000 description 164
- 238000000034 method Methods 0.000 description 46
- 230000002093 peripheral effect Effects 0.000 description 12
- 230000015556 catabolic process Effects 0.000 description 10
- 238000000206 photolithography Methods 0.000 description 9
- 238000004088 simulation Methods 0.000 description 9
- 238000001312 dry etching Methods 0.000 description 7
- 230000005465 channeling Effects 0.000 description 6
- 230000005684 electric field Effects 0.000 description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 5
- 229910052796 boron Inorganic materials 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 238000002513 implantation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 229920002120 photoresistant polymer Polymers 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 229910052785 arsenic Inorganic materials 0.000 description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 238000005468 ion implantation Methods 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 239000005380 borophosphosilicate glass Substances 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
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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
- 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
- H01L29/66—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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/765—Making of isolation regions between components by field effect
-
- 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
- H01L29/0603—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 characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions
- H01L29/0607—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 characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions for preventing surface leakage or controlling electric field concentration
- H01L29/0638—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 characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions for preventing surface leakage or controlling electric field concentration for preventing surface leakage due to surface inversion layer, e.g. with channel stopper
-
- 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
- H01L29/66—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
- H01L29/7811—Vertical DMOS transistors, i.e. VDMOS transistors with an edge termination structure
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims (3)
- N형의 반도체 기판과,상기 반도체 기판의 주표면 내에 형성되어 상기 반도체 기판과의 사이에서 주접합을 구성하는 P형의 제 1 불순물 도입영역을 갖는 트랜지스터와,상기 반도체 기판의 주연부에 형성되고, 상기 주접합으로부터 상기 주연부에 향하여 연장되어 온 공핍층을 억제하기 위한 채널스톱 구조를 구비한 반도체장치에 있어서,상기 채널스톱 구조는,상기 반도체 기판의 상기 주표면 내에 형성된 제 1 트렌치를 갖고,상기 제 1 트렌치가 형성되어 있는 부분의 상기 반도체 기판의 상기 주표면 내에 형성된 N형의 제 2 불순물 도입영역을 더 갖는 것을 특징으로 하는 반도체장치.
- 삭제
- (a) 트랜지스터가 형성되는 제 1 영역과, 채널스톱 구조가 형성되는 제 2 영역을 갖는 N형의 반도체 기판을 준비하는 공정과,(b) 상기 반도체 기판과의 사이에서 주접합을 구성하는 P형의 제 1 불순물 도입영역을, 상기 제 1 영역에 있어서의 상기 반도체 기판의 주표면 내에 형성하는 공정과,(c) N형의 제 2 불순물 도입영역을 상기 제 2 영역에 있어서의 상기 반도체 기판의 상기 주표면 내에 형성하는 공정과,d) 상기 제 2 불순물 도입영역이 형성되어 있는 부분의 상기 반도체 기판의 상기 주표면 내에 제 1 트렌치를 형성하는 공정을 구비하고,상기 채널스톱 구조는, 상기 주접합으로부터 상기 제 2 영역에 향하여 연장되어 온 공핍층을 억제하는 것을 특징으로 하는 반도체장치의 제조방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001332172A JP3701227B2 (ja) | 2001-10-30 | 2001-10-30 | 半導体装置及びその製造方法 |
JPJP-P-2001-00332172 | 2001-10-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030035800A KR20030035800A (ko) | 2003-05-09 |
KR100500096B1 true KR100500096B1 (ko) | 2005-07-11 |
Family
ID=19147629
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2002-0034338A KR100500096B1 (ko) | 2001-10-30 | 2002-06-19 | 반도체장치 및 그 제조방법 |
Country Status (4)
Country | Link |
---|---|
US (3) | US6909142B2 (ko) |
JP (1) | JP3701227B2 (ko) |
KR (1) | KR100500096B1 (ko) |
DE (1) | DE10224003B4 (ko) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7652326B2 (en) | 2003-05-20 | 2010-01-26 | Fairchild Semiconductor Corporation | Power semiconductor devices and methods of manufacture |
JP2005101334A (ja) * | 2003-09-25 | 2005-04-14 | Sanyo Electric Co Ltd | 半導体装置およびその製造方法 |
JP5135663B2 (ja) * | 2004-10-21 | 2013-02-06 | 富士電機株式会社 | 半導体装置およびその製造方法 |
JP4825424B2 (ja) * | 2005-01-18 | 2011-11-30 | 株式会社東芝 | 電力用半導体装置 |
WO2006135746A2 (en) | 2005-06-10 | 2006-12-21 | Fairchild Semiconductor Corporation | Charge balance field effect transistor |
US7560787B2 (en) * | 2005-12-22 | 2009-07-14 | Fairchild Semiconductor Corporation | Trench field plate termination for power devices |
CN102177587B (zh) * | 2008-12-10 | 2013-08-14 | 丰田自动车株式会社 | 半导体装置 |
JP5601863B2 (ja) * | 2010-03-29 | 2014-10-08 | 三菱電機株式会社 | 電力半導体装置 |
US8264047B2 (en) * | 2010-05-10 | 2012-09-11 | Infineon Technologies Austria Ag | Semiconductor component with a trench edge termination |
JP2013055347A (ja) * | 2012-11-08 | 2013-03-21 | Sanken Electric Co Ltd | 半導体装置 |
KR20150078449A (ko) | 2013-12-30 | 2015-07-08 | 현대자동차주식회사 | 반도체 소자 및 그 제조 방법 |
CN108133966B (zh) * | 2018-01-22 | 2024-07-05 | 芯合半导体(合肥)有限公司 | 一种集成了周边RC snubber结构的碳化硅SBD器件元胞结构 |
JP7337619B2 (ja) | 2019-09-17 | 2023-09-04 | 株式会社東芝 | 半導体装置 |
JP7280213B2 (ja) | 2020-03-04 | 2023-05-23 | 株式会社東芝 | 半導体装置 |
JP7334678B2 (ja) * | 2020-06-04 | 2023-08-29 | 三菱電機株式会社 | 半導体装置 |
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-
2001
- 2001-10-30 JP JP2001332172A patent/JP3701227B2/ja not_active Expired - Lifetime
-
2002
- 2002-04-29 US US10/133,422 patent/US6909142B2/en not_active Expired - Lifetime
- 2002-05-29 DE DE10224003A patent/DE10224003B4/de not_active Expired - Lifetime
- 2002-06-19 KR KR10-2002-0034338A patent/KR100500096B1/ko active IP Right Grant
-
2005
- 2005-05-06 US US11/123,192 patent/US7189620B2/en not_active Expired - Lifetime
- 2005-06-03 US US11/143,734 patent/US20050233542A1/en not_active Abandoned
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US5614751A (en) * | 1995-01-10 | 1997-03-25 | Siliconix Incorporated | Edge termination structure for power MOSFET |
JP2001102572A (ja) * | 1999-09-29 | 2001-04-13 | Toyota Autom Loom Works Ltd | トレンチゲートを有するパワーmosトランジスタ |
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US20010026989A1 (en) * | 2000-04-04 | 2001-10-04 | International Rectifier Corp. | Low voltage power MOSFET device and process for its manufacture |
Also Published As
Publication number | Publication date |
---|---|
US7189620B2 (en) | 2007-03-13 |
US20030080375A1 (en) | 2003-05-01 |
JP2003133555A (ja) | 2003-05-09 |
DE10224003B4 (de) | 2011-06-16 |
KR20030035800A (ko) | 2003-05-09 |
JP3701227B2 (ja) | 2005-09-28 |
US20050233542A1 (en) | 2005-10-20 |
DE10224003A1 (de) | 2003-05-15 |
US6909142B2 (en) | 2005-06-21 |
US20050208723A1 (en) | 2005-09-22 |
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