JP2016134480A - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP2016134480A JP2016134480A JP2015007695A JP2015007695A JP2016134480A JP 2016134480 A JP2016134480 A JP 2016134480A JP 2015007695 A JP2015007695 A JP 2015007695A JP 2015007695 A JP2015007695 A JP 2015007695A JP 2016134480 A JP2016134480 A JP 2016134480A
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 175
- 210000000746 body region Anatomy 0.000 claims abstract description 54
- 239000012535 impurity Substances 0.000 claims description 17
- 239000010410 layer Substances 0.000 description 88
- 238000000034 method Methods 0.000 description 8
- 238000005468 ion implantation Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 239000002344 surface layer Substances 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
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- 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
- H01L29/7816—Lateral DMOS transistors, i.e. LDMOS transistors
- H01L29/7824—Lateral DMOS transistors, i.e. LDMOS transistors with a substrate comprising an insulating layer, e.g. SOI-LDMOS transistors
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- H01L29/0615—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 increasing or controlling the breakdown voltage of reverse biased devices by the doping profile or the shape or the arrangement of the PN junction, or with supplementary regions, e.g. junction termination extension [JTE]
- H01L29/0619—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 increasing or controlling the breakdown voltage of reverse biased devices by the doping profile or the shape or the arrangement of the PN junction, or with supplementary regions, e.g. junction termination extension [JTE] with a supplementary region doped oppositely to or in rectifying contact with the semiconductor containing or contacting region, e.g. guard rings with PN or Schottky junction
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- H01L29/0843—Source or drain regions of field-effect devices
- H01L29/0847—Source or drain regions of field-effect devices of field-effect transistors with insulated gate
- H01L29/0852—Source or drain regions of field-effect devices of field-effect transistors with insulated gate of DMOS transistors
- H01L29/0873—Drain regions
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- H01L29/1079—Substrate region of field-effect devices of field-effect transistors with insulated gate
- H01L29/1083—Substrate region of field-effect devices of field-effect transistors with insulated gate with an inactive supplementary region, e.g. for preventing punch-through, improving capacity effect or leakage current
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- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
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- H01L29/42312—Gate electrodes for field effect devices
- H01L29/42316—Gate electrodes for field effect devices for field-effect transistors
- H01L29/4232—Gate electrodes for field effect devices for field-effect transistors with insulated gate
- H01L29/42364—Gate electrodes for field effect devices for field-effect transistors with insulated gate characterised by the insulating layer, e.g. thickness or uniformity
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- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Thin Film Transistor (AREA)
Abstract
【解決手段】半導体装置1の半導体活性層16は、p型の第1深部半導体領域23を有する。第1深部半導体領域23は、ドリフト領域24によって半導体活性層16の上面から隔てられており、ボディ領域21に接しており、ソース・ドレイン間方向に沿ってボディ領域21からベース領域25側に向けて延びている。
【選択図】図1
Description
12:半導体支持層
14:埋込み絶縁層
16:半導体活性層
21:ボディ領域
21a:コンタクト部
21b:メイン部
22:ソース領域
23:第1深部半導体領域
24:ドリフト領域
25:ベース領域
26:ドレイン領域
32:ソース電極
34:ゲート電極
36:ドレイン電極
42:LOCOS酸化膜
Claims (2)
- 半導体活性層、ソース電極及びドレイン電極を備え、
前記半導体活性層は、
前記半導体活性層の上面に露出しており、前記ソース電極に接する第1導電型のソース領域と、
前記半導体活性層の上面に露出しており、前記ソース領域を囲んでおり、前記ソース電極に接する第2導電型のボディ領域と、
前記半導体活性層の上面に露出しており、前記半導体活性層の上面に平行な少なくとも一方向において前記ボディ領域から離れて配置されており、前記ドレイン電極に接する第1導電型のドレイン領域と、
前記ボディ領域と前記ドレイン領域の間に配置されており、前記ドレイン領域の不純物濃度よりも薄い不純物濃度を含む第1導電型のドリフト領域と、
前記半導体活性層の上面に露出しており、前記一方向において前記ボディ領域から離れて配置されており、前記ドリフト領域によって前記ボディ領域から隔てられており、前記ドレイン電極に接する第2導電型のベース領域と、
前記ドリフト領域によって前記半導体活性層の上面から隔てられており、前記ボディ領域に接しており、前記一方向に沿って前記ボディ領域から前記ベース領域側に向けて延びている第2導電型の第1深部半導体領域と、を有する、半導体装置。 - 前記半導体活性層はさらに、前記ドリフト領域によって前記半導体活性層の上面から隔てられており、前記第1深部半導体領域よりも前記ドレイン領域側に設けられており、前記ドリフト領域の不純物濃度よりも濃い不純物濃度を含む第1導電型の第2深部半導体領域を有する、請求項1に記載の半導体装置。
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JP2015007695A JP6455169B2 (ja) | 2015-01-19 | 2015-01-19 | 半導体装置 |
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JP6455169B2 JP6455169B2 (ja) | 2019-01-23 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11923837B2 (en) | 2020-11-25 | 2024-03-05 | Nuvolta Technologies (Hefei) Co., Ltd. | Load switch including back-to-back connected transistors |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04196360A (ja) * | 1990-11-28 | 1992-07-16 | Nissan Motor Co Ltd | 半導体装置 |
JPH10501103A (ja) * | 1995-03-23 | 1998-01-27 | フィリップス エレクトロニクス ネムローゼ フェンノートシャップ | Ligbt素子が形成されている半導体装置 |
JPH10506503A (ja) * | 1995-07-19 | 1998-06-23 | フィリップス エレクトロニクス ネムローゼ フェンノートシャップ | Hv−ldmost型の半導体装置 |
JP2001320047A (ja) * | 2000-03-03 | 2001-11-16 | Toshiba Corp | 半導体装置 |
US20030218188A1 (en) * | 2002-02-08 | 2003-11-27 | Fairchild Korea Semiconductor Ltd. | Lateral DMOS transistor having reduced surface field |
US20040238913A1 (en) * | 2002-05-09 | 2004-12-02 | Kwon Tae-Hun | Reduced surface field technique for semiconductor devices |
JP2009302114A (ja) * | 2008-06-10 | 2009-12-24 | Panasonic Corp | 半導体装置及びその製造方法 |
JP2010073824A (ja) * | 2008-09-17 | 2010-04-02 | Sharp Corp | 半導体装置及びその製造方法 |
JP2012146978A (ja) * | 2011-01-12 | 2012-08-02 | Samsung Electronics Co Ltd | 半導体装置及びその製造方法 |
US20150014791A1 (en) * | 2013-07-11 | 2015-01-15 | Analog Devices Technology | Semiconductor device, and a method of improving breakdown voltage of a semiconductor device |
-
2015
- 2015-01-19 JP JP2015007695A patent/JP6455169B2/ja not_active Expired - Fee Related
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04196360A (ja) * | 1990-11-28 | 1992-07-16 | Nissan Motor Co Ltd | 半導体装置 |
JPH10501103A (ja) * | 1995-03-23 | 1998-01-27 | フィリップス エレクトロニクス ネムローゼ フェンノートシャップ | Ligbt素子が形成されている半導体装置 |
JPH10506503A (ja) * | 1995-07-19 | 1998-06-23 | フィリップス エレクトロニクス ネムローゼ フェンノートシャップ | Hv−ldmost型の半導体装置 |
JP2001320047A (ja) * | 2000-03-03 | 2001-11-16 | Toshiba Corp | 半導体装置 |
US20030218188A1 (en) * | 2002-02-08 | 2003-11-27 | Fairchild Korea Semiconductor Ltd. | Lateral DMOS transistor having reduced surface field |
US20040238913A1 (en) * | 2002-05-09 | 2004-12-02 | Kwon Tae-Hun | Reduced surface field technique for semiconductor devices |
JP2009302114A (ja) * | 2008-06-10 | 2009-12-24 | Panasonic Corp | 半導体装置及びその製造方法 |
JP2010073824A (ja) * | 2008-09-17 | 2010-04-02 | Sharp Corp | 半導体装置及びその製造方法 |
JP2012146978A (ja) * | 2011-01-12 | 2012-08-02 | Samsung Electronics Co Ltd | 半導体装置及びその製造方法 |
US20150014791A1 (en) * | 2013-07-11 | 2015-01-15 | Analog Devices Technology | Semiconductor device, and a method of improving breakdown voltage of a semiconductor device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11923837B2 (en) | 2020-11-25 | 2024-03-05 | Nuvolta Technologies (Hefei) Co., Ltd. | Load switch including back-to-back connected transistors |
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