KR100370957B1 - 트렌치구조의 폴리실리콘 영역을 구비하는 고전압소자 및그 제조방법 - Google Patents
트렌치구조의 폴리실리콘 영역을 구비하는 고전압소자 및그 제조방법 Download PDFInfo
- Publication number
- KR100370957B1 KR100370957B1 KR10-2000-0043812A KR20000043812A KR100370957B1 KR 100370957 B1 KR100370957 B1 KR 100370957B1 KR 20000043812 A KR20000043812 A KR 20000043812A KR 100370957 B1 KR100370957 B1 KR 100370957B1
- Authority
- KR
- South Korea
- Prior art keywords
- trench
- drift region
- polysilicon
- type drift
- diffusion layer
- Prior art date
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Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/80—FETs having rectifying junction gate electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/10—Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
- H10D62/13—Semiconductor regions connected to electrodes carrying current to be rectified, amplified or switched, e.g. source or drain regions
- H10D62/149—Source or drain regions of field-effect devices
- H10D62/151—Source or drain regions of field-effect devices of IGFETs
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/601—Insulated-gate field-effect transistors [IGFET] having lightly-doped drain or source extensions, e.g. LDD IGFETs or DDD IGFETs
- H10D30/608—Insulated-gate field-effect transistors [IGFET] having lightly-doped drain or source extensions, e.g. LDD IGFETs or DDD IGFETs having non-planar bodies, e.g. having recessed gate electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/01—Manufacture or treatment
- H10D64/025—Manufacture or treatment forming recessed gates, e.g. by using local oxidation
- H10D64/027—Manufacture or treatment forming recessed gates, e.g. by using local oxidation by etching at gate locations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Landscapes
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
Claims (2)
- 기판 위에 형성된 N형 드리프트영역 및 P형 드리프트영역과;상기 N형 드리프트영역 및 P형 드리프트영역의 중간에 형성된 트렌치와, 상기 트렌치 내부 및 드레인부에 해당하는 드리프트영역 상부의 일부분에 증착된 산화막과, 상기 산화막 위에 형성된 게이트 전극과, 상기 산화막으로 증착된 트렌치에 채워진 폴리실리콘을 포함하여 구성되는 게이트부와;상기 드리프트영역 중의 어느 하나에 형성된 트렌치와, 상기 트렌치에 채워진 폴리실리콘과, 상기 폴리실리콘 상부에 형성된 고농도 확산층과, 상기 고농도 확산층 위에 형성된 소스전극을 포함하여 구성되는 소스부와;트렌치가 형성되지 않은 드리프트영역의 상부에 형성된 고농도 확산층과, 상기 고농도 확산층 위에 형성된 드레인전극을 포함하여 구성되는 드레인부;를 포함하여 구성되는 트렌치구조의 폴리실리콘 영역을 구비하는 고전압소자.
- 기판 위에 N형 드리프트영역 및 P형 드리프트영역을 형성시키고,상기 드리프트영역 중의 어느 하나에 트렌치를 형성시키고, 이와 동시에 상기 N형 드리프트영역과 P형 드리프트영역 사이에 게이트용 트렌치를 함께 형성시키고상기 N형 드리프트영역과 P형 드리프트영역 사이의 트렌치에 산화막을 증착하고,상기 두 트렌치에 폴리실리콘을 채우고,상기 폴리실리콘 상부와 트렌치가 형성되지 않은 드리프트영역의 상부에 고농도 확산층을 형성시키고,상기 산화막 위에 게이트 전극을 형성시키고,상기 고농도 확산층 위에 금속전극을 형성시키는 단계를 포함하여 이루어지는 트렌치구조의 폴리실리콘 영역을 구비하는 고전압소자 제조방법.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2000-0043812A KR100370957B1 (ko) | 2000-07-28 | 2000-07-28 | 트렌치구조의 폴리실리콘 영역을 구비하는 고전압소자 및그 제조방법 |
US09/863,452 US6706567B2 (en) | 2000-07-28 | 2001-05-24 | High voltage device having polysilicon region in trench and fabricating method thereof |
US10/767,203 US7301201B2 (en) | 2000-07-28 | 2004-01-30 | High voltage device having polysilicon region in trench and fabricating method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2000-0043812A KR100370957B1 (ko) | 2000-07-28 | 2000-07-28 | 트렌치구조의 폴리실리콘 영역을 구비하는 고전압소자 및그 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20020010041A KR20020010041A (ko) | 2002-02-02 |
KR100370957B1 true KR100370957B1 (ko) | 2003-02-06 |
Family
ID=19680626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2000-0043812A KR100370957B1 (ko) | 2000-07-28 | 2000-07-28 | 트렌치구조의 폴리실리콘 영역을 구비하는 고전압소자 및그 제조방법 |
Country Status (2)
Country | Link |
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US (2) | US6706567B2 (ko) |
KR (1) | KR100370957B1 (ko) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6710403B2 (en) * | 2002-07-30 | 2004-03-23 | Fairchild Semiconductor Corporation | Dual trench power MOSFET |
JP2004335990A (ja) * | 2003-03-10 | 2004-11-25 | Fuji Electric Device Technology Co Ltd | Mis型半導体装置 |
US8497167B1 (en) * | 2007-01-17 | 2013-07-30 | National Semiconductor Corporation | EDS protection diode with pwell-nwell resurf |
US8004039B2 (en) * | 2009-07-31 | 2011-08-23 | Micrel, Inc. | Field effect transistor with trench-isolated drain |
US11227921B2 (en) | 2019-11-22 | 2022-01-18 | Nxp Usa, Inc. | Laterally-diffused metal-oxide semiconductor transistor and method therefor |
CN116072711A (zh) * | 2021-12-29 | 2023-05-05 | 台湾积体电路制造股份有限公司 | 半导体器件及其制造方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5640034A (en) * | 1992-05-18 | 1997-06-17 | Texas Instruments Incorporated | Top-drain trench based resurf DMOS transistor structure |
US5869875A (en) * | 1997-06-10 | 1999-02-09 | Spectrian | Lateral diffused MOS transistor with trench source contact |
KR100244282B1 (ko) * | 1997-08-25 | 2000-02-01 | 김영환 | 고전압 트랜지스터의 구조 및 제조 방법 |
-
2000
- 2000-07-28 KR KR10-2000-0043812A patent/KR100370957B1/ko active IP Right Grant
-
2001
- 2001-05-24 US US09/863,452 patent/US6706567B2/en not_active Expired - Lifetime
-
2004
- 2004-01-30 US US10/767,203 patent/US7301201B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US20040183154A1 (en) | 2004-09-23 |
KR20020010041A (ko) | 2002-02-02 |
US20020013029A1 (en) | 2002-01-31 |
US7301201B2 (en) | 2007-11-27 |
US6706567B2 (en) | 2004-03-16 |
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