KR20010074938A - 열전자 주입이 감소된 고전력 rf 전계효과 트랜지스터의제조 방법 및 구조 - Google Patents
열전자 주입이 감소된 고전력 rf 전계효과 트랜지스터의제조 방법 및 구조 Download PDFInfo
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- 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
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- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
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- 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
- H01L29/7833—Field effect transistors with field effect produced by an insulated gate with lightly doped drain or source extension, e.g. LDD MOSFET's; DDD MOSFET's
- H01L29/7835—Field effect transistors with field effect produced by an insulated gate with lightly doped drain or source extension, e.g. LDD MOSFET's; DDD MOSFET's with asymmetrical source and drain regions, e.g. lateral high-voltage MISFETs with drain offset region, extended drain MISFETs
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- H01L29/107—Substrate region of field-effect devices
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Abstract
Description
Claims (18)
- 향상된 신뢰도로 고전력 RF 측면 확산 MOS 트랜지스터(LDMOS)를 제조하는 방법에 있어서,a) 주 표면을 가지는 제 1의 도전형 기판을 제공하는 단계;b) 상기 주 표면에 제 2의 도전형 도핑 웰을 형성하는 단계;c) 소자 영역 주위의 상기 주 표면에 전계 산화물을 형성하는 단계;d) 상기 주 표면과 상기 도핑 웰 상에 게이트 산화물을 형성하는 단계;e) 도핑 웰의 일부의 게이트 산화물 상에 게이트를 형성하는 단계;f) 도펀트 주입 및 열적 드라이브-인에 의해 게이트 하부로 연장되는 상기 제 1의 도전형 채널 영역을 형성하는 단계; 및g) 상기 제 2의 도전형 채널 영역의 소스 영역을 형성하며 상기 게이트로부터 간격진 상기 도핑 웰에 게이트 및 드레인 영역이 정렬되는 단계를 포함하는 것을 특징으로 하는 방법.
- 제 1항에 있어서,상기 기판은 상기 주 표면 상에 제 1의 도전형 에피텍셜 층을 포함하는 것을 특징으로 하는 방법.
- 제 2항에 있어서,h) 상기 소스 영역, 드레인 영역 및 게이트 영역에 접촉부를 형성하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제 2항에 있어서,상기 단계 b)는 제 2의 도전형 도펀트의 블랭킷 주입 단계를 포함하는 것을 특징으로 하는 방법.
- 제 2항에 있어서,상기 단계 b)는 상기 소자 영역 내에 상기 도핑 웰을 제한하는 마스크 단계를 포함하는 것을 특징으로 하는 방법.
- 제 2항에 있어서,상기 단계 b) 후에, 기생 바이폴라 트랜지스터의 효과를 감소시키는데 사용되는 제 1의 도전형 도펀트의 딥을 주입하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제 6항에 있어서,상기 딥 주입 단계는 상기 주 표면 상에 접지 접촉부를 제공하는 것을 특징으로 하는 방법.
- 제 2항에 있어서,상기 제 1의 도전형은 P 타입이며 상기 제 2의 도전형은 N 타입인 것을 특징으로 하는 방법.
- 제 2항에 있어서,상기 단계 d)는 적어도 2가지 두께의 게이트 산화물을 형성하며, 상기 단계 e)는 상기 채널 영역의 두꺼운 산화물 위에, 그리고 게이트-드레인 캐패시턴스를 감소시키기 위해 상기 채널 영역에 인접한 도핑 웰의 두꺼운 산화물 위에 게이트를 형성하는 것을 특징으로 하는 방법.
- 제 2항에 있어서,상기 단계 e)는 도핑된 폴리실리콘 및 폴리사이드 그룹으로부터 선택된 물질의 게이트를 형성하는 것을 특징으로 하는 방법.
- 제 2항에 있어서,h) 상기 소자 영역 표면 상에 패시베이션 층을 형성하는 단계; 및i) 상기 소스 영역, 드레인 영역 및 게이트 영역에 접촉부를 형성하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제 11항에 있어서,상기 패시베이션 층은 산화 실리콘, PSG 유리, BPSG 산화물, 및 질화 실리콘 그룹으로부터 선택되는 것을 특징으로 하는 방법.
- 제 11항에 있어서,상기 접촉부는 용해하기 어려운 금속 차단막을 가지는 알루미늄, 알루미늄/1%실리콘/0.5%구리, 및 금 그룹으로부터 선택되는 것을 특징으로 하는 방법.
- 제 1항에 있어서,싱커 영역을 확산시키고 상기 도핑 웰의 표면 도펀트 농도를 감소시키기 위해 싱커 동작을 수행하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제 1항에 의한 공정으로부터 제조된 LDMOS 트랜지스터.
- 제 2항에 의한 공정으로부터 제조된 LDMOS 트랜지스터.
- 제 3항에 의한 공정으로부터 제조된 LDMOS 트랜지스터.
- 제 11항에 의한 공정으로부터 제조된 LDMOS 트랜지스터.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/145,818 | 1998-09-02 | ||
US09/145,818 US6506648B1 (en) | 1998-09-02 | 1998-09-02 | Method of fabricating a high power RF field effect transistor with reduced hot electron injection and resulting structure |
Publications (2)
Publication Number | Publication Date |
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KR20010074938A true KR20010074938A (ko) | 2001-08-09 |
KR100633947B1 KR100633947B1 (ko) | 2006-10-16 |
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KR1020017002775A KR100633947B1 (ko) | 1998-09-02 | 1999-08-17 | 열전자 주입이 감소된 고전력 rf 전계효과 트랜지스터의제조 방법 및 구조 |
Country Status (5)
Country | Link |
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US (1) | US6506648B1 (ko) |
EP (1) | EP1142012A4 (ko) |
JP (1) | JP2003510796A (ko) |
KR (1) | KR100633947B1 (ko) |
WO (1) | WO2000014791A1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100847990B1 (ko) * | 2001-02-27 | 2008-07-22 | 엔엑스피 비 브이 | 횡형 박막 soi 디바이스 및 이 디바이스에서의 에너지 소모 감소 방법 |
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Publication number | Priority date | Publication date | Assignee | Title |
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US6710424B2 (en) | 2001-09-21 | 2004-03-23 | Airip | RF chipset architecture |
EP1296378A1 (en) * | 2001-09-21 | 2003-03-26 | STMicroelectronics S.r.l. | MOS semiconductor device and manufacturing process thereof |
MXPA04005565A (es) | 2002-06-06 | 2004-12-06 | Nippon Catalytic Chem Ind | Composicion de agente de absorcion de agua y metodo para la produccion de la misma y material de absorcion y articulo absorbente. |
US6727127B1 (en) * | 2002-11-21 | 2004-04-27 | Cree, Inc. | Laterally diffused MOS transistor (LDMOS) and method of making same |
SE0303106D0 (sv) * | 2003-11-21 | 2003-11-21 | Infineon Technologies Ag | Ldmos transistor device, integrated circuit, and fabrication method thereof |
US7307314B2 (en) * | 2004-06-16 | 2007-12-11 | Cree Microwave Llc | LDMOS transistor with improved gate shield |
JP5215849B2 (ja) | 2005-07-13 | 2013-06-19 | エヌエックスピー ビー ヴィ | Ldmosトランジスタ及びその製造方法 |
US7808102B2 (en) * | 2006-07-28 | 2010-10-05 | Alpha & Omega Semiconductor, Ltd. | Multi-die DC-DC boost power converter with efficient packaging |
US7825508B2 (en) * | 2006-07-28 | 2010-11-02 | Alpha Omega Semiconductor, Inc. | Multi-die DC-DC buck power converter with efficient packaging |
US7554154B2 (en) * | 2006-07-28 | 2009-06-30 | Alpha Omega Semiconductor, Ltd. | Bottom source LDMOSFET structure and method |
CN105789054B (zh) * | 2016-03-30 | 2019-02-05 | 上海华虹宏力半导体制造有限公司 | Rfldmos制备方法及结构 |
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JPS5011789A (ko) * | 1973-06-04 | 1975-02-06 | ||
JPS52117081A (en) * | 1976-03-29 | 1977-10-01 | Hitachi Ltd | Preparation of mis semiconductor device |
JPS62274767A (ja) * | 1986-05-23 | 1987-11-28 | Fujitsu Ltd | 高耐圧半導体装置及びその製造方法 |
US5155563A (en) * | 1991-03-18 | 1992-10-13 | Motorola, Inc. | Semiconductor device having low source inductance |
GB9106108D0 (en) * | 1991-03-22 | 1991-05-08 | Philips Electronic Associated | A lateral insulated gate field effect semiconductor device |
US5306652A (en) * | 1991-12-30 | 1994-04-26 | Texas Instruments Incorporated | Lateral double diffused insulated gate field effect transistor fabrication process |
US5286995A (en) * | 1992-07-14 | 1994-02-15 | Texas Instruments Incorporated | Isolated resurf LDMOS devices for multiple outputs on one die |
US5539238A (en) * | 1992-09-02 | 1996-07-23 | Texas Instruments Incorporated | Area efficient high voltage Mosfets with vertical resurf drift regions |
JPH0897410A (ja) * | 1994-07-01 | 1996-04-12 | Texas Instr Inc <Ti> | 自己整合した横型dmosトランジスタの製造法 |
JPH08236757A (ja) * | 1994-12-12 | 1996-09-13 | Texas Instr Inc <Ti> | Ldmos装置 |
US5578860A (en) * | 1995-05-01 | 1996-11-26 | Motorola, Inc. | Monolithic high frequency integrated circuit structure having a grounded source configuration |
US5841166A (en) * | 1996-09-10 | 1998-11-24 | Spectrian, Inc. | Lateral DMOS transistor for RF/microwave applications |
US5869875A (en) * | 1997-06-10 | 1999-02-09 | Spectrian | Lateral diffused MOS transistor with trench source contact |
US5912490A (en) * | 1997-08-04 | 1999-06-15 | Spectrian | MOSFET having buried shield plate for reduced gate/drain capacitance |
US5918137A (en) * | 1998-04-27 | 1999-06-29 | Spectrian, Inc. | MOS transistor with shield coplanar with gate electrode |
-
1998
- 1998-09-02 US US09/145,818 patent/US6506648B1/en not_active Expired - Lifetime
-
1999
- 1999-08-17 KR KR1020017002775A patent/KR100633947B1/ko not_active IP Right Cessation
- 1999-08-17 JP JP2000569438A patent/JP2003510796A/ja active Pending
- 1999-08-17 EP EP99942284A patent/EP1142012A4/en not_active Withdrawn
- 1999-08-17 WO PCT/US1999/018780 patent/WO2000014791A1/en active IP Right Grant
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100847990B1 (ko) * | 2001-02-27 | 2008-07-22 | 엔엑스피 비 브이 | 횡형 박막 soi 디바이스 및 이 디바이스에서의 에너지 소모 감소 방법 |
Also Published As
Publication number | Publication date |
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WO2000014791A1 (en) | 2000-03-16 |
EP1142012A1 (en) | 2001-10-10 |
JP2003510796A (ja) | 2003-03-18 |
US6506648B1 (en) | 2003-01-14 |
KR100633947B1 (ko) | 2006-10-16 |
WO2000014791A9 (en) | 2000-08-10 |
EP1142012A4 (en) | 2007-08-15 |
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