KR20010048716A - 자기 정렬 기술을 이용한 트렌치 게이트 전력 소자 제조방법 - Google Patents
자기 정렬 기술을 이용한 트렌치 게이트 전력 소자 제조방법 Download PDFInfo
- Publication number
- KR20010048716A KR20010048716A KR1019990053515A KR19990053515A KR20010048716A KR 20010048716 A KR20010048716 A KR 20010048716A KR 1019990053515 A KR1019990053515 A KR 1019990053515A KR 19990053515 A KR19990053515 A KR 19990053515A KR 20010048716 A KR20010048716 A KR 20010048716A
- Authority
- KR
- South Korea
- Prior art keywords
- trench
- forming
- film
- oxide film
- sidewall
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 150000004767 nitrides Chemical class 0.000 claims abstract description 15
- 239000012535 impurity Substances 0.000 claims abstract description 12
- 238000000151 deposition Methods 0.000 claims abstract description 6
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 5
- 239000000758 substrate Substances 0.000 claims abstract description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 3
- 239000010703 silicon Substances 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000000992 sputter etching Methods 0.000 claims 1
- 238000005468 ion implantation Methods 0.000 abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/80—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs
- H10D84/82—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components
-
- 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]
- H10D30/64—Double-diffused metal-oxide semiconductor [DMOS] FETs
- H10D30/66—Vertical DMOS [VDMOS] FETs
- H10D30/668—Vertical DMOS [VDMOS] FETs having trench gate electrodes, e.g. UMOS transistors
-
- 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
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/20—Electrodes characterised by their shapes, relative sizes or dispositions
- H10D64/27—Electrodes not carrying the current to be rectified, amplified, oscillated or switched, e.g. gates
- H10D64/311—Gate electrodes for field-effect devices
- H10D64/411—Gate electrodes for field-effect devices for FETs
- H10D64/511—Gate electrodes for field-effect devices for FETs for IGFETs
- H10D64/514—Gate electrodes for field-effect devices for FETs for IGFETs characterised by the insulating layers
- H10D64/516—Gate electrodes for field-effect devices for FETs for IGFETs characterised by the insulating layers the thicknesses being non-uniform
Landscapes
- Insulated Gate Type Field-Effect Transistor (AREA)
- Element Separation (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Abstract
Description
Claims (5)
- 실리콘 기판 위에 산화막 및 질화막을 순차적으로 성장시킨 후, 제 1 마스크를 사용하여 불순물을 이온 주입함으로써, 소자의 채널층을 형성하는 제 1 단계;상기 결과물 상에 측벽 산화막 및 트렌치를 순차적으로 형성한 후, 상기 측벽 산화막을 제거하여 상기 트렌치 바닥면 및 상기 측벽막 제거 영역에 불순물을 이온 주입하는 제 2 단계;상기 트렌치 표면에 게이트 산화막을 성장시키는 제 3 단계;상기 트렌치 내부를 제 2 마스크를 사용하여 다결정 실리콘으로 채움으로써, 게이트 전극을 형성하는 제 4 단계;상기 트렌치 상에 산화막을 증착하고, Etch - back을 질화막이 보일 때까지 진행시킨 후, 질화막을 제거하고, 자기 정렬 기술을 이용하여 불순물을 이온 주입하여 바디 컨택트(Body Contact)를 형성하는 제 5 단계; 및상기 결과물 상에 단자 형성을 위한 전극을 제 3 마스크를 사용하여 형성하는 제 6 단계를 포함하여 이루어진 것을 특징으로 하는 TDMOS 전력 소자 제조 방법.
- 제 1 항에 있어서,상기 제 1 단계는,2000 내지 4000 Å의 질화막을 성장시킨 후, PR 공정 및 트렌치 마스크를 사용하여 불순물을 이온 주입한 후, 고온 열처리를 통하여 채널층을 형성하는 것 특징으로 하는 TDMOS 전력 소자 제조 방법.
- 제 2 항에 있어서,상기 제 2 단계는,2000 내지 4000Å 두께의 LTO 산화막을 이용하여 상기 트렌치 측벽면에 측벽막을 형성시킨 후, 이온 식각 기술을 이용하여 트렌치를 형성시키는 것을 특징으로 하는 TDMOS 전력 소자 제조 방법.
- 제 3 항에 있어서,상기 제 3 단계는,측벽막을 제거한 후, 상기 측벽막 제거 영역에 불순물을 주입하여 TDMOS의 소스를 형성하는 것을 특징으로 하는 TDMOS 전력 소자 제조 방법.
- 제 4 항에 있어서,상기 제 4 단계는,상기 트렌치 상에 산화막을 증착하고, Etch-back을 상기 질화막이 보일 때까지 진행시킨 후, 상기 질화막을 제거하고, 자기 정렬 기술을 이용하여 불순물을 이온 주입함으로써, 바디 컨택트(Body Contact)를 형성하는것을 특징으로 하는 TDMOS 전력 소자 제조 방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-1999-0053515A KR100399583B1 (ko) | 1999-11-29 | 1999-11-29 | 자기 정렬 기술을 이용한 트렌치 게이트 전력 소자 제조방법 |
US09/726,910 US6534365B2 (en) | 1999-11-29 | 2000-11-29 | Method of fabricating TDMOS device using self-align technique |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-1999-0053515A KR100399583B1 (ko) | 1999-11-29 | 1999-11-29 | 자기 정렬 기술을 이용한 트렌치 게이트 전력 소자 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010048716A true KR20010048716A (ko) | 2001-06-15 |
KR100399583B1 KR100399583B1 (ko) | 2003-09-26 |
Family
ID=19622429
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-1999-0053515A Expired - Fee Related KR100399583B1 (ko) | 1999-11-29 | 1999-11-29 | 자기 정렬 기술을 이용한 트렌치 게이트 전력 소자 제조방법 |
Country Status (2)
Country | Link |
---|---|
US (1) | US6534365B2 (ko) |
KR (1) | KR100399583B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7153733B2 (en) | 2004-03-17 | 2006-12-26 | Samsung Electronics Co., Ltd. | Method of fabricating fin field effect transistor using isotropic etching technique |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6580123B2 (en) * | 2000-04-04 | 2003-06-17 | International Rectifier Corporation | Low voltage power MOSFET device and process for its manufacture |
US7229872B2 (en) * | 2000-04-04 | 2007-06-12 | International Rectifier Corporation | Low voltage power MOSFET device and process for its manufacture |
WO2002089195A2 (en) * | 2001-04-28 | 2002-11-07 | Koninklijke Philips Electronics N.V. | Method of manufacturing a trench-gate semiconductor device |
DE60219300T2 (de) * | 2001-04-28 | 2008-01-03 | Koninklijke Philips Electronics N.V. | Halbleiteranordnungen mit graben-gateelektrode und verfahren zu deren herstellung |
FI117488B (fi) * | 2001-05-16 | 2006-10-31 | Myorigo Sarl | Informaation selaus näytöllä |
US6709930B2 (en) | 2002-06-21 | 2004-03-23 | Siliconix Incorporated | Thicker oxide formation at the trench bottom by selective oxide deposition |
US7045859B2 (en) * | 2001-09-05 | 2006-05-16 | International Rectifier Corporation | Trench fet with self aligned source and contact |
KR100400079B1 (ko) * | 2001-10-10 | 2003-09-29 | 한국전자통신연구원 | 트랜치 게이트 구조를 갖는 전력용 반도체 소자의 제조 방법 |
US7012005B2 (en) * | 2002-06-25 | 2006-03-14 | Siliconix Incorporated | Self-aligned differential oxidation in trenches by ion implantation |
KR100486300B1 (ko) * | 2003-01-14 | 2005-04-29 | 삼성전자주식회사 | 다마신 기법으로 비트라인을 형성하는 반도체 소자의 제조방법 |
KR100618843B1 (ko) * | 2004-07-12 | 2006-09-01 | 삼성전자주식회사 | 비휘발성 반도체 메모리 소자 및 그 제조방법 |
US8138540B2 (en) * | 2005-10-24 | 2012-03-20 | Macronix International Co., Ltd. | Trench type non-volatile memory having three storage locations in one memory cell |
TWI340431B (en) * | 2007-06-11 | 2011-04-11 | Nanya Technology Corp | Memory structure and method of making the same |
US8334160B2 (en) * | 2007-10-01 | 2012-12-18 | Lof Solar Corporation | Semiconductor photovoltaic devices and methods of manufacturing the same |
KR100988776B1 (ko) * | 2007-12-27 | 2010-10-20 | 주식회사 동부하이텍 | 리세스드 게이트 트랜지스터의 제조 방법 |
JP2009224543A (ja) * | 2008-03-17 | 2009-10-01 | Sony Corp | 半導体装置の製造方法 |
US20090309155A1 (en) * | 2008-06-12 | 2009-12-17 | Mkhitarian Aram H | Vertical transistor with integrated isolation |
US8313995B2 (en) * | 2011-01-13 | 2012-11-20 | Infineon Technologies Austria Ag | Method for manufacturing a semiconductor device |
CN102737993B (zh) * | 2011-04-01 | 2015-02-04 | 无锡华润上华半导体有限公司 | 沟槽dmos器件及其制造方法 |
JP6267102B2 (ja) * | 2014-12-10 | 2018-01-24 | トヨタ自動車株式会社 | 半導体装置および半導体装置の製造方法 |
US9812548B2 (en) * | 2015-09-08 | 2017-11-07 | Maxpower Semiconductor, Inc. | Power device having a polysilicon-filled trench with a tapered oxide thickness |
CN107845581A (zh) * | 2017-11-02 | 2018-03-27 | 中电科技集团重庆声光电有限公司 | 一种低漏源通态电阻的umos器件结构及制备方法 |
CN112635569B (zh) * | 2021-01-29 | 2025-04-29 | 北京昌龙智芯半导体有限公司 | 一种半导体功率器件及其制备方法 |
Family Cites Families (11)
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US5283201A (en) * | 1988-05-17 | 1994-02-01 | Advanced Power Technology, Inc. | High density power device fabrication process |
US4992390A (en) | 1989-07-06 | 1991-02-12 | General Electric Company | Trench gate structure with thick bottom oxide |
EP0698919B1 (en) * | 1994-08-15 | 2002-01-16 | Siliconix Incorporated | Trenched DMOS transistor fabrication using seven masks |
US5643822A (en) * | 1995-01-10 | 1997-07-01 | International Business Machines Corporation | Method for forming trench-isolated FET devices |
US5591655A (en) * | 1995-02-28 | 1997-01-07 | Sgs-Thomson Microelectronics, Inc. | Process for manufacturing a vertical switched-emitter structure with improved lateral isolation |
US5567634A (en) * | 1995-05-01 | 1996-10-22 | National Semiconductor Corporation | Method of fabricating self-aligned contact trench DMOS transistors |
US5684319A (en) | 1995-08-24 | 1997-11-04 | National Semiconductor Corporation | Self-aligned source and body contact structure for high performance DMOS transistors and method of fabricating same |
US5780353A (en) | 1996-03-28 | 1998-07-14 | Advanced Micro Devices, Inc. | Method of doping trench sidewalls before trench etching |
JP4077529B2 (ja) * | 1996-05-22 | 2008-04-16 | フェアチャイルドコリア半導体株式会社 | トレンチ拡散mosトランジスタの製造方法 |
KR100225409B1 (ko) * | 1997-03-27 | 1999-10-15 | 김덕중 | 트렌치 디-모오스 및 그의 제조 방법 |
US6309936B1 (en) * | 1998-09-30 | 2001-10-30 | Advanced Micro Devices, Inc. | Integrated formation of LDD and non-LDD semiconductor devices |
-
1999
- 1999-11-29 KR KR10-1999-0053515A patent/KR100399583B1/ko not_active Expired - Fee Related
-
2000
- 2000-11-29 US US09/726,910 patent/US6534365B2/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7153733B2 (en) | 2004-03-17 | 2006-12-26 | Samsung Electronics Co., Ltd. | Method of fabricating fin field effect transistor using isotropic etching technique |
US7429505B2 (en) | 2004-03-17 | 2008-09-30 | Samsung Electronics Co., Ltd. | Method of fabricating fin field effect transistor using isotropic etching technique |
Also Published As
Publication number | Publication date |
---|---|
KR100399583B1 (ko) | 2003-09-26 |
US6534365B2 (en) | 2003-03-18 |
US20010038121A1 (en) | 2001-11-08 |
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