WO2008149800A1 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
- Publication number
- WO2008149800A1 WO2008149800A1 PCT/JP2008/060007 JP2008060007W WO2008149800A1 WO 2008149800 A1 WO2008149800 A1 WO 2008149800A1 JP 2008060007 W JP2008060007 W JP 2008060007W WO 2008149800 A1 WO2008149800 A1 WO 2008149800A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- region
- trenches
- embedded electrodes
- semiconductor device
- adjacent trenches
- Prior art date
Links
- 239000004065 semiconductor Substances 0.000 title abstract 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 abstract 1
- 229910052814 silicon oxide Inorganic materials 0.000 abstract 1
Classifications
-
- 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
- H01L29/66—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
- H01L29/7827—Vertical transistors
- H01L29/7828—Vertical transistors without inversion channel, e.g. vertical ACCUFETs, normally-on vertical MISFETs
-
- 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
- H01L29/0603—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
- H01L29/0607—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
- H01L29/0611—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
- 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
-
- 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
- H01L29/66—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
- H01L29/7839—Field effect transistors with field effect produced by an insulated gate with Schottky drain or source contact
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Electrodes Of Semiconductors (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
オン抵抗を大幅に低減することが可能な半導体装置を提供する。この半導体装置は、隣接するトレンチ(3)間の各領域がチャネル(9)となるn型エピタキシャル層(2)と、複数のトレンチ(3)の各々の内面上にシリコン酸化膜(4)を介して形成された複数の埋め込み電極(5)とを備えている。複数の埋め込み電極(5)は、互いに別個に電圧が印加される2種類の埋め込み電極(5a、5b)に分けられており、全てのトレンチ(3)の周辺に形成される空乏層(10)で隣接するトレンチ(3)間の各領域を塞ぐことにより、隣接するトレンチ(3)間の各領域を流れる電流が遮断される一方、埋め込み電極(5a)が埋め込まれたトレンチ(3a)の周辺に形成された空乏層(10a)を消滅させることにより、隣接するトレンチ(3)間の各領域を介して電流が流れるように構成されている。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/601,923 US8575687B2 (en) | 2007-05-30 | 2008-05-30 | Semiconductor switch device |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007143214A JP2008300494A (ja) | 2007-05-30 | 2007-05-30 | 半導体装置 |
JP2007-143214 | 2007-05-30 | ||
JP2007143221A JP2008300496A (ja) | 2007-05-30 | 2007-05-30 | 半導体装置 |
JP2007-143221 | 2007-05-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008149800A1 true WO2008149800A1 (ja) | 2008-12-11 |
Family
ID=40093618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/060007 WO2008149800A1 (ja) | 2007-05-30 | 2008-05-30 | 半導体装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US8575687B2 (ja) |
WO (1) | WO2008149800A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015225976A (ja) * | 2014-05-28 | 2015-12-14 | 株式会社東芝 | 半導体装置 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008149799A1 (ja) | 2007-05-30 | 2008-12-11 | Rohm Co., Ltd. | 半導体装置 |
KR102163602B1 (ko) | 2017-07-13 | 2020-10-12 | 매그나칩 반도체 유한회사 | 실리콘-전도층-실리콘 스택 구조의 반도체 소자 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003224277A (ja) * | 2002-01-31 | 2003-08-08 | Denso Corp | 炭化珪素半導体装置とその製造方法 |
JP2003229570A (ja) * | 2001-11-27 | 2003-08-15 | Nissan Motor Co Ltd | 炭化珪素半導体を用いた電界効果トランジスタ |
JP2004356383A (ja) * | 2003-05-29 | 2004-12-16 | Shindengen Electric Mfg Co Ltd | 半導体装置 |
JP2005101551A (ja) * | 2003-08-29 | 2005-04-14 | Fuji Electric Holdings Co Ltd | 半導体装置とその製造方法およびその半導体装置を用いた双方向スイッチ素子 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0339962A3 (en) | 1988-04-27 | 1990-09-26 | General Electric Company | Field effect semiconductor device |
US5132238A (en) * | 1989-12-28 | 1992-07-21 | Nissan Motor Co., Ltd. | Method of manufacturing semiconductor device utilizing an accumulation layer |
JP2893835B2 (ja) | 1990-04-06 | 1999-05-24 | 日産自動車株式会社 | 半導体装置の製造方法 |
JP3319228B2 (ja) | 1994-12-09 | 2002-08-26 | 富士電機株式会社 | たて型半導体素子およびその製造方法 |
JP3575331B2 (ja) | 1999-05-17 | 2004-10-13 | 日産自動車株式会社 | 電界効果トランジスタ |
JP2001007149A (ja) * | 1999-06-24 | 2001-01-12 | Nec Corp | 高出力半導体装置 |
JP2001168333A (ja) | 1999-09-30 | 2001-06-22 | Toshiba Corp | トレンチゲート付き半導体装置 |
JP3289141B2 (ja) | 1999-11-26 | 2002-06-04 | 京セラ株式会社 | 定着装置のウォームアップ方法 |
JP2004055803A (ja) * | 2002-07-19 | 2004-02-19 | Renesas Technology Corp | 半導体装置 |
US7652326B2 (en) * | 2003-05-20 | 2010-01-26 | Fairchild Semiconductor Corporation | Power semiconductor devices and methods of manufacture |
JP4945055B2 (ja) * | 2003-08-04 | 2012-06-06 | ルネサスエレクトロニクス株式会社 | 半導体装置およびその製造方法 |
US7157785B2 (en) * | 2003-08-29 | 2007-01-02 | Fuji Electric Device Technology Co., Ltd. | Semiconductor device, the method of manufacturing the same, and two-way switching device using the semiconductor devices |
US7400014B2 (en) * | 2004-04-20 | 2008-07-15 | International Rectifier Corporation | ACCUFET with schottky source contact |
DE102004057791B4 (de) * | 2004-11-30 | 2018-12-13 | Infineon Technologies Ag | Trenchtransistor sowie Verfahren zu dessen Herstellung |
JP5074671B2 (ja) * | 2005-04-28 | 2012-11-14 | ルネサスエレクトロニクス株式会社 | 半導体装置およびその製造方法 |
US7687851B2 (en) * | 2005-11-23 | 2010-03-30 | M-Mos Semiconductor Sdn. Bhd. | High density trench MOSFET with reduced on-resistance |
EP2070108A4 (en) * | 2006-09-27 | 2010-12-01 | Maxpower Semiconductor Inc | MOS FIELD EFFECT TRANSISTOR HAVING A REINFORCED FIELD PLATE |
WO2008149799A1 (ja) | 2007-05-30 | 2008-12-11 | Rohm Co., Ltd. | 半導体装置 |
-
2008
- 2008-05-30 US US12/601,923 patent/US8575687B2/en active Active
- 2008-05-30 WO PCT/JP2008/060007 patent/WO2008149800A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003229570A (ja) * | 2001-11-27 | 2003-08-15 | Nissan Motor Co Ltd | 炭化珪素半導体を用いた電界効果トランジスタ |
JP2003224277A (ja) * | 2002-01-31 | 2003-08-08 | Denso Corp | 炭化珪素半導体装置とその製造方法 |
JP2004356383A (ja) * | 2003-05-29 | 2004-12-16 | Shindengen Electric Mfg Co Ltd | 半導体装置 |
JP2005101551A (ja) * | 2003-08-29 | 2005-04-14 | Fuji Electric Holdings Co Ltd | 半導体装置とその製造方法およびその半導体装置を用いた双方向スイッチ素子 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015225976A (ja) * | 2014-05-28 | 2015-12-14 | 株式会社東芝 | 半導体装置 |
Also Published As
Publication number | Publication date |
---|---|
US20100176447A1 (en) | 2010-07-15 |
US8575687B2 (en) | 2013-11-05 |
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