JP4864344B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP4864344B2 JP4864344B2 JP2005142232A JP2005142232A JP4864344B2 JP 4864344 B2 JP4864344 B2 JP 4864344B2 JP 2005142232 A JP2005142232 A JP 2005142232A JP 2005142232 A JP2005142232 A JP 2005142232A JP 4864344 B2 JP4864344 B2 JP 4864344B2
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- 239000004065 semiconductor Substances 0.000 title claims description 112
- 238000002955 isolation Methods 0.000 claims description 64
- 239000012535 impurity Substances 0.000 claims description 50
- 210000000746 body region Anatomy 0.000 claims description 38
- 239000000758 substrate Substances 0.000 claims description 16
- 230000015556 catabolic process Effects 0.000 description 29
- 230000002093 peripheral effect Effects 0.000 description 10
- 230000005684 electric field Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 230000002040 relaxant effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1203—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body the substrate comprising an insulating body on a semiconductor body, e.g. SOI
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/7624—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology
- H01L21/76264—SOI together with lateral isolation, e.g. using local oxidation of silicon, or dielectric or polycristalline material refilled trench or air gap isolation regions, e.g. completely isolated semiconductor islands
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- H—ELECTRICITY
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- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/423—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
- 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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- H—ELECTRICITY
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- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—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
- H01L29/0684—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 the shape, relative sizes or dispositions of the semiconductor regions or junctions between the regions
- H01L29/0692—Surface layout
- H01L29/0696—Surface layout of cellular field-effect devices, e.g. multicellular DMOS transistors or IGBTs
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—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
- H01L29/08—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 with semiconductor regions connected to an electrode carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- 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
- H01L29/0856—Source regions
- H01L29/086—Impurity concentration or distribution
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—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
- H01L29/08—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 with semiconductor regions connected to an electrode carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- 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
- H01L29/0878—Impurity concentration or distribution
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/423—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
- 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
- H01L29/42368—Gate electrodes for field effect devices for field-effect transistors with insulated gate characterised by the insulating layer, e.g. thickness or uniformity the thickness being non-uniform
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Element Separation (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Thin Film Transistor (AREA)
Description
2、102 埋込酸化膜
3、103 半導体層
3a、3b、103a、103b 島状半導体層
4、24、104、115、124 絶縁分離用トレンチ
5、25、105、125 ドレイン領域
6、26、106、126 ドレインコンタクト領域
6a、6b、106a、106b ドレイン電極
7、27、107、127 ゲート電極
8、28、108、128 ボディー領域
9、29、109、129 ソース領域
9a、9b、109a、109b ソース電極
10、30、110、130 ボディーコンタクト領域
11、31、111、131 LOCOS酸化膜
12、112、132 バッファ領域
13、113、133 バッファコンタクト領域
13a、113a、113b バッファ電極
114、134 接続手段
Claims (5)
- 半導体基板と、
前記半導体基板上に形成された埋込酸化膜と、
前記埋込酸化膜上に形成された半導体層とを備え、
前記半導体層は、第1ボディー領域と、前記第1ボディー領域内に位置する第1ソース領域と、前記第1ボディー領域の周囲に位置する第1ドレイン領域とを持つ第1導電型の第1MOSトランジスタが形成された第1島状半導体層と、
第2ドレイン領域と、前記第2ドレイン領域の周囲に位置する第2ボディー領域と、前記第2ボディー領域内に位置する第2ソース領域とを持つ第2導電型の第2MOSトランジスタが形成された第2島状半導体層と、
前記第1島状半導体層の周囲に位置し、前記第1島状半導体層を前記半導体層の他の部分から絶縁分離する第1絶縁分離用トレンチと、
前記第2島状半導体層の周囲に位置し、前記第2島状半導体層を前記半導体層の他の部分から絶縁分離する第2絶縁分離用トレンチと、
前記第1絶縁分離用トレンチと前記第2絶縁分離用トレンチとの間に位置し、前記第1MOSトランジスタと前記第2MOSトランジスタとの間の電気的干渉を防止するために共用された1つのバッファ領域とを有し、
前記バッファ領域の電位は、回路上の最低電位あるいは最高電位の何れか一方に固定されることを特徴とする半導体装置。 - 前記第1MOSトランジスタは、PチャネルMOSトランジスタであり、
前記第2MOSトランジスタは、NチャネルMOSトランジスタであり、
前記バッファ領域の電位は、回路上の最低電位に固定される
ことを特徴とする請求項1に記載の半導体装置。 - 前記第1MOSトランジスタは、NチャネルMOSトランジスタであり、
前記第2MOSトランジスタは、PチャネルMOSトランジスタであり、
前記バッファ領域の電位は、回路上の最高電位に固定される
ことを特徴とする請求項1に記載の半導体装置。 - 前記半導体層は、前記第1ドレイン領域と前記第1絶縁分離用トレンチとの間に該第1ドレイン領域よりも低不純物濃度であるドレインバッファ領域をさらに有している
ことを特徴する請求項1に記載の半導体装置。 - 前記半導体層において、前記第1ドレイン領域は前記第1絶縁分離用トレンチに接している
ことを特徴する請求項1に記載の半導体装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005142232A JP4864344B2 (ja) | 2005-05-16 | 2005-05-16 | 半導体装置 |
US11/370,038 US7342283B2 (en) | 2005-05-16 | 2006-03-08 | Semiconductor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2005142232A JP4864344B2 (ja) | 2005-05-16 | 2005-05-16 | 半導体装置 |
Publications (2)
Publication Number | Publication Date |
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JP2006319231A JP2006319231A (ja) | 2006-11-24 |
JP4864344B2 true JP4864344B2 (ja) | 2012-02-01 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2005142232A Active JP4864344B2 (ja) | 2005-05-16 | 2005-05-16 | 半導体装置 |
Country Status (2)
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US (1) | US7342283B2 (ja) |
JP (1) | JP4864344B2 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008131730A (ja) * | 2006-11-20 | 2008-06-05 | Matsushita Electric Ind Co Ltd | 半導体装置、モータ駆動装置、及び空調機 |
DE102007029756A1 (de) * | 2007-06-27 | 2009-01-02 | X-Fab Semiconductor Foundries Ag | Halbleiterstruktur zur Herstellung eines Trägerwaferkontaktes in grabenisolierten SOI-Scheiben |
JP5410012B2 (ja) * | 2007-09-28 | 2014-02-05 | ローム株式会社 | 半導体装置 |
US20090218627A1 (en) * | 2008-02-28 | 2009-09-03 | International Business Machines Corporation | Field effect device structure including self-aligned spacer shaped contact |
JP5515248B2 (ja) | 2008-03-26 | 2014-06-11 | 富士電機株式会社 | 半導体装置 |
CN104969355B (zh) * | 2013-01-30 | 2018-02-13 | 密克罗奇普技术公司 | Esd自我保护及含该保护的lin总线驱动器的dmos半导体装置 |
JP6740831B2 (ja) * | 2016-09-14 | 2020-08-19 | 富士電機株式会社 | 半導体装置 |
CN110024134B (zh) | 2019-02-28 | 2020-06-26 | 长江存储科技有限责任公司 | 具有增大的击穿电压的高电压半导体器件及其制造方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3293871B2 (ja) * | 1991-01-31 | 2002-06-17 | 株式会社東芝 | 高耐圧半導体素子 |
JPH11274501A (ja) * | 1998-03-20 | 1999-10-08 | Denso Corp | 半導体装置 |
JPH11330383A (ja) * | 1998-05-20 | 1999-11-30 | Denso Corp | 半導体装置 |
JP3509552B2 (ja) * | 1998-04-30 | 2004-03-22 | 株式会社デンソー | 半導体装置 |
JP4231612B2 (ja) * | 2000-04-26 | 2009-03-04 | 株式会社ルネサステクノロジ | 半導体集積回路 |
JP2001345376A (ja) * | 2000-06-01 | 2001-12-14 | Unisia Jecs Corp | 半導体装置 |
JP4471480B2 (ja) * | 2000-10-18 | 2010-06-02 | 三菱電機株式会社 | 半導体装置 |
US7224025B2 (en) * | 2004-08-03 | 2007-05-29 | Taiwan Semiconductor Manufacturing Co., Ltd. | Isolated LDMOS IC technology |
-
2005
- 2005-05-16 JP JP2005142232A patent/JP4864344B2/ja active Active
-
2006
- 2006-03-08 US US11/370,038 patent/US7342283B2/en active Active
Also Published As
Publication number | Publication date |
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US7342283B2 (en) | 2008-03-11 |
US20060255406A1 (en) | 2006-11-16 |
JP2006319231A (ja) | 2006-11-24 |
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