JP2013115223A - 半導体装置 - Google Patents
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- 239000012535 impurity Substances 0.000 description 10
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- 238000009792 diffusion process Methods 0.000 description 6
- 239000002470 thermal conductor Substances 0.000 description 6
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- 230000008034 disappearance Effects 0.000 description 1
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- 229920001721 polyimide Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
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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
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- H01L27/088—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 a semiconductor body including only semiconductor components of a single kind including field-effect components only the components being field-effect transistors with insulated gate
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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
- H01L29/02—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
- H01L29/10—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 not carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- H01L29/1095—Body region, i.e. base region, of DMOS transistors or IGBTs
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- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
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- 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
- H01L29/42356—Disposition, e.g. buried gate electrode
- H01L29/4236—Disposition, e.g. buried gate electrode within a trench, e.g. trench gate electrode, groove gate electrode
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- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
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- 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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- 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
- H01L29/70—Bipolar devices
- H01L29/72—Transistor-type devices, i.e. able to continuously respond to applied control signals
- H01L29/739—Transistor-type devices, i.e. able to continuously respond to applied control signals controlled by field-effect, e.g. bipolar static induction transistors [BSIT]
- H01L29/7393—Insulated gate bipolar mode transistors, i.e. IGBT; IGT; COMFET
- H01L29/7395—Vertical transistors, e.g. vertical IGBT
- H01L29/7396—Vertical transistors, e.g. vertical IGBT with a non planar surface, e.g. with a non planar gate or with a trench or recess or pillar in the surface of the emitter, base or collector region for improving current density or short circuiting the emitter and base regions
- H01L29/7397—Vertical transistors, e.g. vertical IGBT with a non planar surface, e.g. with a non planar gate or with a trench or recess or pillar in the surface of the emitter, base or collector region for improving current density or short circuiting the emitter and base regions and a gate structure lying on a slanted or vertical surface or formed in a groove, e.g. trench gate IGBT
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Abstract
【解決手段】本明細書が開示する半導体装置2は、素子領域60と、表面電極36と、熱伝導部材40と、保護膜38とを備える。素子領域60は、複数個のゲート電極22を備える。表面電極36は、素子領域60の表面に形成されている。熱伝導部材40は、表面電極36の中心部の表面側に形成され、素子領域60の熱伝導率よりも高い熱伝導率を有している。保護膜38は、表面電極36の表面側であって、中心部の周囲を取り囲む周辺部に形成されている。素子領域60は、表面電極36の中心部の裏面側に形成されるエミッタ中心領域70では、表面電極36の周辺部の裏面側に形成されるエミッタ周辺領域72と比較して、オン状態となる時間が長い。
【選択図】図1
Description
図1に示す第1実施例の半導体装置2は、半導体基板10と、表面電極36と、保護膜38と、熱伝導部材40と、裏面電極50とを備える。
第2実施例について、第1実施例とは異なる点を中心に説明する。第2実施例では、半導体装置2の基本的構成は第1実施例の半導体装置2(図1参照)と共通する。第2実施例の半導体装置2では、ゲート電極22の閾値電圧を場所に応じて異ならせることに代えて、ゲート電極22ごとにゲート抵抗値を異ならせている点において、第1実施例の半導体装置2とは異なる。
10:半導体基板
12:コレクタ層
14:ドリフト層
16:拡散層
18:ボディ領域
18a:ボディコンタクト領域
19:トレンチ
20:絶縁膜
22:ゲート電極
22a:中心ゲート
22b:周辺ゲート
24:エミッタ領域
32、34:絶縁膜
36:表面電極
38:保護膜
40:熱伝導部材
42:ハンダ
50:裏面電極
60:素子領域
62:非素子領域
70:エミッタ中心領域
72:エミッタ周辺領域
Claims (3)
- 半導体装置であって、
複数個の絶縁ゲートを備える半導体素子領域と、
前記半導体素子領域の表面に形成される表面電極と、
前記表面電極の中心部の表面側に形成されている熱伝導部材と、
前記表面電極の表面側であって、前記中心部の周囲を取り囲む周辺部に形成されている保護膜と、を備え、
前記熱伝導部材の熱伝導率は、前記保護膜の熱伝導率よりも高く、
前記半導体素子領域は、前記表面電極の中心部の裏面側に形成される中心領域では、前記表面電極の周辺部の裏面側に形成される周辺領域と比較して、オン状態となる時間が長い、
半導体装置。 - 前記複数個の絶縁ゲートは、前記中心領域に形成される複数個の第1の絶縁ゲートと、前記周辺領域に形成される複数個の第2の絶縁ゲートと、を含み、
前記中心領域がオンする時の前記第1の絶縁ゲートの閾値電圧の平均が、前記周辺領域がオンする時の前記第2の絶縁ゲートの閾値電圧の平均よりも小さい、
請求項1記載の半導体装置。 - 前記複数個の絶縁ゲートは、前記中心領域に形成される複数個の第1の絶縁ゲートと、前記周辺領域に形成される複数個の第2の絶縁ゲートと、を含み、
前記第1の絶縁ゲートのゲート抵抗値の平均が、前記第2の絶縁ゲートのゲート抵抗値の平均よりも小さい、
請求項1記載の半導体装置。
Priority Applications (2)
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JP2011259782A JP2013115223A (ja) | 2011-11-29 | 2011-11-29 | 半導体装置 |
US13/687,349 US8928087B2 (en) | 2011-11-29 | 2012-11-28 | Semiconductor device |
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JP2011259782A JP2013115223A (ja) | 2011-11-29 | 2011-11-29 | 半導体装置 |
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JP2013115223A true JP2013115223A (ja) | 2013-06-10 |
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JP2011259782A Pending JP2013115223A (ja) | 2011-11-29 | 2011-11-29 | 半導体装置 |
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JP (1) | JP2013115223A (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9006839B2 (en) | 2013-05-23 | 2015-04-14 | Toyota Jidosha Kabushiki Kaisha | Semiconductor device |
JP2015146368A (ja) * | 2014-02-03 | 2015-08-13 | 株式会社東芝 | 半導体装置 |
JP2015222743A (ja) * | 2014-05-22 | 2015-12-10 | 三菱電機株式会社 | 半導体装置 |
JP2016066701A (ja) * | 2014-09-25 | 2016-04-28 | 株式会社日立製作所 | 半導体装置およびそれを用いた電力変換装置 |
JP2017037921A (ja) * | 2015-08-07 | 2017-02-16 | トヨタ自動車株式会社 | Igbt |
JP2019102726A (ja) * | 2017-12-06 | 2019-06-24 | 株式会社デンソー | 半導体装置 |
JP2021040062A (ja) * | 2019-09-04 | 2021-03-11 | 株式会社東芝 | 半導体装置 |
JP2021064673A (ja) * | 2019-10-11 | 2021-04-22 | 富士電機株式会社 | 半導体装置 |
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US9437484B2 (en) | 2014-10-17 | 2016-09-06 | Taiwan Semiconductor Manufacturing Company, Ltd. | Etch stop layer in integrated circuits |
US10559659B2 (en) * | 2016-04-06 | 2020-02-11 | Mitsubishi Electric Corporation | Power semiconductor device |
CN109659360A (zh) * | 2018-12-18 | 2019-04-19 | 吉林华微电子股份有限公司 | Igbt器件和制作方法 |
CN117174758B (zh) * | 2023-11-03 | 2024-02-23 | 陕西亚成微电子股份有限公司 | Sgt mosfet器件及制备方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07240516A (ja) * | 1994-02-28 | 1995-09-12 | Mitsubishi Electric Corp | 電界効果型半導体装置およびその製造方法 |
JP2002134750A (ja) * | 2000-10-20 | 2002-05-10 | Toshiba Corp | 半導体装置 |
JP2002231943A (ja) * | 2001-02-02 | 2002-08-16 | Toshiba Corp | 半導体装置 |
JP2006253636A (ja) * | 2005-02-10 | 2006-09-21 | Sanken Electric Co Ltd | 半導体素子 |
JP2007110002A (ja) * | 2005-10-17 | 2007-04-26 | Fuji Electric Device Technology Co Ltd | 半導体装置 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005116702A (ja) | 2003-10-06 | 2005-04-28 | Fuji Electric Holdings Co Ltd | パワー半導体モジュール |
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2011
- 2011-11-29 JP JP2011259782A patent/JP2013115223A/ja active Pending
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- 2012-11-28 US US13/687,349 patent/US8928087B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07240516A (ja) * | 1994-02-28 | 1995-09-12 | Mitsubishi Electric Corp | 電界効果型半導体装置およびその製造方法 |
JP2002134750A (ja) * | 2000-10-20 | 2002-05-10 | Toshiba Corp | 半導体装置 |
JP2002231943A (ja) * | 2001-02-02 | 2002-08-16 | Toshiba Corp | 半導体装置 |
JP2006253636A (ja) * | 2005-02-10 | 2006-09-21 | Sanken Electric Co Ltd | 半導体素子 |
JP2007110002A (ja) * | 2005-10-17 | 2007-04-26 | Fuji Electric Device Technology Co Ltd | 半導体装置 |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9006839B2 (en) | 2013-05-23 | 2015-04-14 | Toyota Jidosha Kabushiki Kaisha | Semiconductor device |
JP2015146368A (ja) * | 2014-02-03 | 2015-08-13 | 株式会社東芝 | 半導体装置 |
JP2015222743A (ja) * | 2014-05-22 | 2015-12-10 | 三菱電機株式会社 | 半導体装置 |
JP2016066701A (ja) * | 2014-09-25 | 2016-04-28 | 株式会社日立製作所 | 半導体装置およびそれを用いた電力変換装置 |
JP2017037921A (ja) * | 2015-08-07 | 2017-02-16 | トヨタ自動車株式会社 | Igbt |
JP2019102726A (ja) * | 2017-12-06 | 2019-06-24 | 株式会社デンソー | 半導体装置 |
JP7073695B2 (ja) | 2017-12-06 | 2022-05-24 | 株式会社デンソー | 半導体装置 |
JP2021040062A (ja) * | 2019-09-04 | 2021-03-11 | 株式会社東芝 | 半導体装置 |
JP2021064673A (ja) * | 2019-10-11 | 2021-04-22 | 富士電機株式会社 | 半導体装置 |
JP7456113B2 (ja) | 2019-10-11 | 2024-03-27 | 富士電機株式会社 | 半導体装置 |
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US20130134521A1 (en) | 2013-05-30 |
US8928087B2 (en) | 2015-01-06 |
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