JP2006514443A - Dc−dcコンバータ利用のためのトレンチmosfet技術 - Google Patents
Dc−dcコンバータ利用のためのトレンチmosfet技術 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
- H01L29/7801—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
- H01L29/7802—Vertical DMOS transistors, i.e. VDMOS transistors
- H01L29/7813—Vertical DMOS transistors, i.e. VDMOS transistors with trench gate electrode, e.g. UMOS transistors
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- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66674—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
- H01L29/66712—Vertical DMOS transistors, i.e. VDMOS transistors
- H01L29/66727—Vertical DMOS transistors, i.e. VDMOS transistors with a step of recessing the source electrode
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- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66674—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
- H01L29/66712—Vertical DMOS transistors, i.e. VDMOS transistors
- H01L29/66734—Vertical DMOS transistors, i.e. VDMOS transistors with a step of recessing the gate electrode, e.g. to form a trench gate electrode
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- 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
- H01L29/7802—Vertical DMOS transistors, i.e. VDMOS transistors
- H01L29/7811—Vertical DMOS transistors, i.e. VDMOS transistors with an edge termination structure
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- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
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- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1588—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load comprising at least one synchronous rectifier element
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- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Manufacturing & Machinery (AREA)
- Electrodes Of Semiconductors (AREA)
- Semiconductor Integrated Circuits (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Abstract
Description
3 エピタキシャル層
4 ドリフト領域
5 ダイ
10 ドレイン領域
12 チャネル領域
14 トレンチ
15 酸化物
16 ゲート電極
18 ゲート酸化物層
20 ソース領域
22 ゲート分離層
24 低温酸化膜層
25 凹部
26 コンタクト領域
28 ソースコンタクト層
30 ドレインコンタクト層
32 パッド酸化物
34 チャネル注入領域
36 窒化物
36 窒化物層
38 フォトレジスト
40 終端領域
42 終端リセス
44 フィールド酸化膜
46 トレンチマスク
48 開口
50 フィールドプレート(ポリシリコン層)
52 ポリシリコンマスク
54 ソース注入領域
56 ソースコンタクトマスク
58 開口
100 制御FET
200 同期FET
Claims (8)
- 同期半導体デバイス、および
制御半導体デバイスを有するDC−DCコンバータであって、
少なくとも1つの前記半導体デバイスが、
第2の導電型のチャネル領域および主要面を含む第1の導電型の半導体本体と、
前記半導体本体に形成された活性領域であって、前記チャネル領域を通して延在するトレンチと、前記トレンチ内に配置されて少なくとも前記トレンチの側壁に配置されゲート酸化物層、および前記ゲート酸化物層に隣接して配置されたゲート電極を有するゲート構造を含む活性領域と、
終端構造であって、前記半導体本体に形成された終端トレンチ、および前記主要面の下の前記終端トレンチに形成されたフィールド酸化膜層を含む前記終端構造と、
を有するDC−DCコンバータ。 - 前記トレンチはその底部に形成された酸化物部を含み、前記酸化物部は前記ゲート酸化膜層より厚い請求項1に記載の半導体デバイス。
- 前記半導体本体が、前記チャネル領域における前記トレンチに隣接して形成された前記第1の導電型の導電性領域を含み、さらに、前記導電型の半導体基板を有し、前記半導体本体が前記半導体基板の上に形成された半導体デバイスであって、前記導電性領域が、前記トレンチに隣接した反転可能なチャネルを介して前記半導体基板に電気的に接続可能である請求項2に記載の半導体デバイス。
- 前記導電性領域がソース領域である請求項3に記載の半導体デバイス。
- 前記トレンチの深さが最適な性能指数を達成するように選択された請求項1に記載の半導体デバイス。
- 前記トレンチがストライプである請求項1に記載の半導体デバイス。
- 前記トレンチがセルである請求項1に記載の半導体デバイス。
- 前記セルが六角形である請求項7に記載の半導体デバイス。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US44406403P | 2003-01-29 | 2003-01-29 | |
US10/766,465 US7557395B2 (en) | 2002-09-30 | 2004-01-27 | Trench MOSFET technology for DC-DC converter applications |
PCT/US2004/002567 WO2004068617A2 (en) | 2003-01-29 | 2004-01-28 | Trench mosfet technology for dc-dc converter applications |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006514443A true JP2006514443A (ja) | 2006-04-27 |
JP4139408B2 JP4139408B2 (ja) | 2008-08-27 |
Family
ID=32829848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005518373A Expired - Fee Related JP4139408B2 (ja) | 2003-01-29 | 2004-01-28 | Dc−dcコンバータ利用のためのトレンチmosfet技術 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7557395B2 (ja) |
JP (1) | JP4139408B2 (ja) |
DE (1) | DE112004000218B4 (ja) |
WO (1) | WO2004068617A2 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007531988A (ja) * | 2004-03-01 | 2007-11-08 | インターナショナル レクティファイアー コーポレイション | トレンチデバイスのための自動整合された接点構造体 |
JP2016521461A (ja) * | 2013-05-17 | 2016-07-21 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツングRobert Bosch Gmbh | Mos型電界効果トランジスタ、およびその製造方法 |
Families Citing this family (10)
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---|---|---|---|---|
US6916745B2 (en) * | 2003-05-20 | 2005-07-12 | Fairchild Semiconductor Corporation | Structure and method for forming a trench MOSFET having self-aligned features |
JP2006196545A (ja) * | 2005-01-11 | 2006-07-27 | Toshiba Corp | 半導体装置の製造方法 |
US20100090274A1 (en) * | 2008-10-10 | 2010-04-15 | Force Mos Technology Co. Ltd. | Trench mosfet with shallow trench contact |
JP5691259B2 (ja) * | 2010-06-22 | 2015-04-01 | 株式会社デンソー | 半導体装置 |
JP5729331B2 (ja) * | 2011-04-12 | 2015-06-03 | 株式会社デンソー | 半導体装置の製造方法及び半導体装置 |
JP6290526B2 (ja) | 2011-08-24 | 2018-03-07 | ローム株式会社 | 半導体装置およびその製造方法 |
US8697520B2 (en) | 2012-03-02 | 2014-04-15 | Alpha & Omega Semiconductor Incorporationed | Method of forming an asymmetric poly gate for optimum termination design in trench power MOSFETS |
JP2014056890A (ja) * | 2012-09-11 | 2014-03-27 | Toshiba Corp | 半導体装置及びその製造方法 |
US9324784B2 (en) | 2014-04-10 | 2016-04-26 | Semiconductor Components Industries, Llc | Electronic device having a termination region including an insulating region |
US9343528B2 (en) | 2014-04-10 | 2016-05-17 | Semiconductor Components Industries, Llc | Process of forming an electronic device having a termination region including an insulating region |
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JP4463888B2 (ja) | 1998-09-25 | 2010-05-19 | Necエレクトロニクス株式会社 | 絶縁ゲート型半導体装置およびその製造方法 |
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DE19908809B4 (de) * | 1999-03-01 | 2007-02-01 | Infineon Technologies Ag | Verfahren zur Herstellung einer MOS-Transistorstruktur mit einstellbarer Schwellspannung |
US6413822B2 (en) * | 1999-04-22 | 2002-07-02 | Advanced Analogic Technologies, Inc. | Super-self-aligned fabrication process of trench-gate DMOS with overlying device layer |
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JP2001127072A (ja) | 1999-10-26 | 2001-05-11 | Hitachi Ltd | 半導体装置 |
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US6864532B2 (en) * | 2000-01-14 | 2005-03-08 | Denso Corporation | Semiconductor device and method for manufacturing the same |
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-
2004
- 2004-01-27 US US10/766,465 patent/US7557395B2/en not_active Expired - Lifetime
- 2004-01-28 JP JP2005518373A patent/JP4139408B2/ja not_active Expired - Fee Related
- 2004-01-28 DE DE112004000218.4T patent/DE112004000218B4/de not_active Expired - Fee Related
- 2004-01-28 WO PCT/US2004/002567 patent/WO2004068617A2/en active Application Filing
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007531988A (ja) * | 2004-03-01 | 2007-11-08 | インターナショナル レクティファイアー コーポレイション | トレンチデバイスのための自動整合された接点構造体 |
JP2016521461A (ja) * | 2013-05-17 | 2016-07-21 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツングRobert Bosch Gmbh | Mos型電界効果トランジスタ、およびその製造方法 |
US10608105B2 (en) | 2013-05-17 | 2020-03-31 | Robert Bosch Gmbh | MOS field-effect transistor and method for the production thereof |
Also Published As
Publication number | Publication date |
---|---|
JP4139408B2 (ja) | 2008-08-27 |
WO2004068617A3 (en) | 2005-02-03 |
US7557395B2 (en) | 2009-07-07 |
WO2004068617A2 (en) | 2004-08-12 |
WO2004068617B1 (en) | 2005-03-24 |
DE112004000218B4 (de) | 2016-09-22 |
US20040251491A1 (en) | 2004-12-16 |
DE112004000218T5 (de) | 2005-12-29 |
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