KR100927065B1 - 향상된 하이 사이드 효율을 갖는 고 전압 트랜지스터 - Google Patents
향상된 하이 사이드 효율을 갖는 고 전압 트랜지스터 Download PDFInfo
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Abstract
Description
Claims (13)
- 기판;상기 기판의 표면 부근에 생성되는 딥 DN 웰(DN);상기 DN 웰에 배열된 고밀도 n형 도핑 소스(SO) 및 드레인(DR);소스와 드레인 사이에서 상기 DN 웰의 표면 상에 위치하는 필드 옥사이드 영역(FO) 또는 쉘로우 트렌치;상기 필드 옥사이드 또는 상기 쉘로우 트렌치, 및 상기 소스 사이에 위치하는 p형 도핑 채널 영역(CH);상기 필드 옥사이드 또는 상기 쉘로우 트렌치, 및 상기 채널 영역을 부분적으로 커버하는 게이트(G); 및상기 DN 웰을 통해서 상기 기판과 절연되는 바디를 포함하고,상기 DN 웰은, 상기 DN 웰의 깊이가 최소값을 갖는 상기 필드 옥사이드 영역의 중앙부 아래에 위치하는 핀치 오프 영역(PO)을 포함하고, 상기 소스 영역에 위치하는 제1 부분 및 상기 드레인 영역에 위치하는 제2 부분을 갖고, 상기 두 부분은 상기 핀치 오프 영역(PO)에서 중첩되며, 상기 중첩 영역에서의 상기 DN 웰의 깊이는 상기 바디 및 상기 드레인 영역에서의 깊이보다 각각 더 작으며,상기 게이트는 최소의 n형 웰 깊이를 갖는 핀치 오프점 이상으로 연장되는 것을 특징으로 하는 고전압 NMOS 타입의 트랜지스터.
- 삭제
- 제1항에 있어서,상기 DN 웰의 n형 도핑 농도를 증가시키는 상기 핀치 오프 영역(PO)에서의 상기 기판의 표면 주변에 플랫 SN 웰(SN)이 위치하는 것을 특징으로 하는 고전압 NMOS 타입의 트랜지스터.
- 제1항에 있어서,상기 필드 옥사이드(FO) 또는 상기 쉘로우 트랜치 절연으로부터 공간적으로 이격된 상기 소스(SO)의 아래에 딥 DP 웰(DP)이 위치하는 것을 특징으로 하는 고전압 NMOS 타입의 트랜지스터.
- 제4항에 있어서,상기 DP 웰(DP)에 위치하는 쉘로우 SP 웰(SP)을 포함하고, 상기 표면으로부터 상기 SP 웰까지 상승하는 p형 도핑 농도의 변화도를 제공하는 것을 특징으로 하는 고전압 NMOS 타입의 트랜지스터.
- 제4항 또는 제5항에 있어서,상기 딥 DP 웰(DP) 및 상기 필드 옥사이드(FO) 또는 상기 쉘로우 트렌치 영역의 가장자리 사이에 위치하는 딥 DP 버퍼 웰 영역(BW)을 포함하고, 상기 DP 버퍼 웰은 상기 기판의 표면으로부터 공간적으로 이격된 중앙부에서 더 높은 p형 도핑 농도를 갖는 것을 특징으로 하는 고전압 NMOS 타입의 트랜지스터.
- 제5항에 있어서,상기 소스(SO)는 상기 쉘로우 SP 웰(SP)에 위치하는 것을 특징으로 하는 고전압 NMOS 타입의 트랜지스터.
- 제1항에 있어서,절연층에 의해서 상기 기판 및 상기 게이트(G)의 표면으로부터 이격되고 관통 접점에 의해서 상기 게이트에 전기적으로 연결된 제1 금속화 평면에서 구성되는 필드 플레이트(FP)를 포함하고, 상기 필드 플레이트는 상기 필드 옥사이드 영역(FO) 또는 상기 쉘로우 트렌치 절연의 중앙부로부터 상기 드레인(DR)에 면하는 상기 필드 옥사이드 영역의 가장자리로 연장되며 상기 게이트에 중첩되는 것을 특징으로 하는 고전압 NMOS 타입의 트랜지스터.
- 제1항에 있어서,적어도 150V의 항복 전압을 갖는 것을 특징으로 하는 고전압 NMOS 타입의 트랜지스터.
- 제1항에 있어서,0 ∼ 200V의 항복 전압을 갖는 것을 특징으로 하는 고전압 NMOS 타입의 트랜지스터.
- 제1항에 있어서,상기 게이트(G) 및 상기 필드 옥사이드(FO)는 각각 상기 드레인(DR)에 면하는 가장자리를 가지고, 상기 게이트의 가장자리는 상기 필드 옥사이드의 가장자리 및 상기 DN 웰(DN)이 최소의 깊이를 갖는 상기 핀치 오프 영역(PO) 상에 위치하는 점 사이에 위치하는 것을 특징으로 하는 고전압 NMOS 타입의 트랜지스터.
- 삭제
- 삭제
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EP06009366.3 | 2006-05-05 | ||
EP06009366A EP1852916A1 (en) | 2006-05-05 | 2006-05-05 | High voltage transistor |
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KR100927065B1 true KR100927065B1 (ko) | 2009-11-13 |
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US (1) | US8212318B2 (ko) |
EP (2) | EP1852916A1 (ko) |
JP (1) | JP5175271B2 (ko) |
KR (1) | KR100927065B1 (ko) |
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JP5148852B2 (ja) * | 2006-09-07 | 2013-02-20 | 新日本無線株式会社 | 半導体装置 |
US7968950B2 (en) * | 2007-06-27 | 2011-06-28 | Texas Instruments Incorporated | Semiconductor device having improved gate electrode placement and decreased area design |
DE102009021241A1 (de) * | 2009-05-14 | 2010-11-18 | Austriamicrosystems Ag | Hochvolt-Transistor mit vergrabener Driftstrecke und Herstellungsverfahren |
DE102010014370B4 (de) * | 2010-04-09 | 2021-12-02 | X-Fab Semiconductor Foundries Ag | LDMOS-Transistor und LDMOS - Bauteil |
WO2012139633A1 (en) * | 2011-04-12 | 2012-10-18 | X-Fab Semiconductor Foundries Ag | Bipolar transistor with gate electrode over the emitter base junction |
DE102011108651B4 (de) | 2011-07-26 | 2019-10-17 | Austriamicrosystems Ag | Hochvolttransistorbauelement und Herstellungsverfahren |
DE102011056412B4 (de) * | 2011-12-14 | 2013-10-31 | Austriamicrosystems Ag | Hochvolttransistorbauelement und Herstellungsverfahren |
US9245997B2 (en) * | 2013-08-09 | 2016-01-26 | Magnachip Semiconductor, Ltd. | Method of fabricating a LDMOS device having a first well depth less than a second well depth |
KR102389294B1 (ko) * | 2015-06-16 | 2022-04-20 | 삼성전자주식회사 | 반도체 장치 및 그 제조 방법 |
CN107492497A (zh) * | 2016-06-12 | 2017-12-19 | 中芯国际集成电路制造(上海)有限公司 | 晶体管的形成方法 |
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JPH05121738A (ja) * | 1991-10-24 | 1993-05-18 | Fuji Electric Co Ltd | Misfetを有する半導体装置 |
DE69307121T2 (de) * | 1993-02-24 | 1997-04-17 | Sgs Thomson Microelectronics | Volkommen verarmter lateraler Transistor |
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JP2001210823A (ja) * | 2000-01-21 | 2001-08-03 | Denso Corp | 半導体装置 |
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US6995428B2 (en) * | 2004-02-24 | 2006-02-07 | System General Corp. | High voltage LDMOS transistor having an isolated structure |
DE102004014928B4 (de) * | 2004-03-26 | 2018-07-12 | Austriamicrosystems Ag | Hochvolttransistor und Verfahren zu seiner Herstellung |
DE102004038369B4 (de) * | 2004-08-06 | 2018-04-05 | Austriamicrosystems Ag | Hochvolt-NMOS-Transistor und Herstellungsverfahren |
JP4863665B2 (ja) * | 2005-07-15 | 2012-01-25 | 三菱電機株式会社 | 半導体装置およびその製造方法 |
-
2006
- 2006-05-05 EP EP06009366A patent/EP1852916A1/en not_active Withdrawn
-
2007
- 2007-04-16 US US12/299,741 patent/US8212318B2/en active Active
- 2007-04-16 EP EP07724276.6A patent/EP2016623B1/en not_active Expired - Fee Related
- 2007-04-16 WO PCT/EP2007/003338 patent/WO2007128383A1/en active Application Filing
- 2007-04-16 KR KR1020087003034A patent/KR100927065B1/ko active IP Right Grant
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040108544A1 (en) * | 2002-12-09 | 2004-06-10 | Semiconductor Components Industries, Llc | High voltage mosfet with laterally varying drain doping and method |
WO2005083794A2 (de) * | 2004-02-27 | 2005-09-09 | Austriamicrosystems Ag | Hochvolt-pmos-transistor |
Also Published As
Publication number | Publication date |
---|---|
EP2016623B1 (en) | 2014-03-12 |
JP5175271B2 (ja) | 2013-04-03 |
EP2016623A1 (en) | 2009-01-21 |
US20090321822A1 (en) | 2009-12-31 |
US8212318B2 (en) | 2012-07-03 |
KR20080033361A (ko) | 2008-04-16 |
WO2007128383A1 (en) | 2007-11-15 |
JP2009536449A (ja) | 2009-10-08 |
EP1852916A1 (en) | 2007-11-07 |
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