JP2010067693A - 半導体装置及び半導体装置の製造方法 - Google Patents
半導体装置及び半導体装置の製造方法 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims description 10
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 239000010410 layer Substances 0.000 claims description 62
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 238000001465 metallisation Methods 0.000 claims description 5
- 239000011241 protective layer Substances 0.000 claims description 5
- 238000000151 deposition Methods 0.000 claims description 2
- 229910002704 AlGaN Inorganic materials 0.000 abstract description 9
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 238000006731 degradation reaction Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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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
- H01L29/66—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
- H01L29/80—Field effect transistors with field effect produced by a PN or other rectifying junction gate, i.e. potential-jump barrier
- H01L29/812—Field effect transistors with field effect produced by a PN or other rectifying junction gate, i.e. potential-jump barrier with a Schottky gate
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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
- H01L29/402—Field plates
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- H—ELECTRICITY
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- 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
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66848—Unipolar field-effect transistors with a Schottky gate, i.e. MESFET
- H01L29/66856—Unipolar field-effect transistors with a Schottky gate, i.e. MESFET with an active layer made of a group 13/15 material
- H01L29/66863—Lateral single gate 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
- H01L29/66—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
- H01L29/778—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface
- H01L29/7786—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface with direct single heterostructure, i.e. with wide bandgap layer formed on top of active layer, e.g. direct single heterostructure MIS-like HEMT
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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
- H01L29/12—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/20—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
- H01L29/2003—Nitride compounds
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- Manufacturing & Machinery (AREA)
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Abstract
【解決手段】SiC基板11と、このSiC基板11上に形成されたAlGaN層13と、このAlGaN層13上にそれぞれ離間して形成されたソース電極15及びドレイン電極14と、これらのソース電極15、ドレイン電極14間に形成され、ソース電極15及びドレイン電極14に対して平行な開口部16を有する第1の絶縁膜17と、この第1の絶縁膜17の開口部16に形成されたゲート電極18と、このゲート電極18が形成された第1の絶縁膜17上に形成された第2の絶縁膜19と、この第2の絶縁膜19及びソース電極15上に形成され、ドレイン電極14側の端部201が、第2の絶縁膜19と離間したソースフィールドプレート電極20と、を具備する半導体装置。
【選択図】図1B
Description
Claims (8)
- 半導体基板と、
この半導体基板上に形成された動作層と、
この動作層上にそれぞれ離間して形成されたソース電極及びドレイン電極と、
これらのソース電極、ドレイン電極間に形成され、前記ソース電極及び前記ドレイン電極に対して平行な開口を有する第1の絶縁膜と、
この第1の絶縁膜の前記開口に形成されたゲート電極と、
このゲート電極が形成された前記第1の絶縁膜上に形成された第2の絶縁膜と、
この第2の絶縁膜及び前記ソース電極上に形成され、前記ドレイン電極側端部が、前記第2の絶縁膜と離間したソースフィールドプレート電極と、
を具備することを特徴とする半導体装置。 - 前記ソースフィールドプレート電極の前記ドレイン電極側端部と前記第2の絶縁膜とで形成される角度は、
0°より大きくかつ、90°以下であることを特徴とする請求項1に記載の半導体装置。 - 前記ソースフィールドプレート電極の前記ドレイン電極側端部は、前記第2の絶縁膜上に形成されることを特徴とする請求項2に記載の半導体装置。
- 前記ソースフィールドプレート電極の表面は、表面保護層で覆われていることを特徴とする請求項3に記載の半導体装置。
- ソース電極、ドレイン電極を有する半導体基板の動作層上に形成されたゲート電極の両端の第1の絶縁膜上に、第2の絶縁膜を形成し、
この第2の絶縁膜が形成された装置表面に、開口部がテーパ状の第1の開口を有する第1のレジスト層を形成し、
この第1の開口上に、前記第1の開口より大きくかつ、開口部がオーバーハング状の第2の開口が形成された第2のレジスト層を前記第1のレジスト層上に形成し、
この第2の開口を有する第2のレジスト層上から金属を蒸着することでソースフィールドプレート電極を形成し、
前記金属蒸着後、第1のレジスト層及び第2のレジスト層を除去する
ことを特徴とする半導体装置の製造方法。 - 前記ソースフィールドプレート電極の前記ドレイン電極側端部は、この端部と前記第2の絶縁膜とで形成される角度が0°より大きくかつ、90°以下になるように形成されることを特徴とする請求項5に記載の半導体装置の製造方法。
- 前記ソースフィールドプレート電極の前記ドレイン電極側端部は、前記第2の絶縁膜上に形成されることを特徴とする請求項6に記載の半導体装置の製造方法。
- 前記ソースフィールドプレート電極の表面に、表面保護層を形成することを特徴とする請求項7に記載の半導体装置の製造方法。
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JP2008230963A JP5388514B2 (ja) | 2008-09-09 | 2008-09-09 | 半導体装置及び半導体装置の製造方法 |
US12/554,423 US8253169B2 (en) | 2008-09-09 | 2009-09-04 | Semiconductor device and manufacturing method for semiconductor device |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012018972A (ja) * | 2010-07-06 | 2012-01-26 | Sanken Electric Co Ltd | 半導体装置 |
JP6195041B1 (ja) * | 2016-10-24 | 2017-09-13 | 三菱電機株式会社 | 化合物半導体デバイスの製造方法 |
CN109891561A (zh) * | 2016-10-24 | 2019-06-14 | 三菱电机株式会社 | 化合物半导体器件及其制造方法 |
DE112016007367T5 (de) | 2016-10-24 | 2019-07-04 | Mitsubishi Electric Corporation | Verbundhalbleitervorrichtung |
DE112017005359T5 (de) | 2016-10-24 | 2019-07-11 | Mitsubishi Electric Corp. | Verbundhalbleitervorrichtung |
US11283021B2 (en) | 2016-10-24 | 2022-03-22 | Mitsubishi Electric Corporation | Compound semiconductor device including MOTT insulator for preventing device damage due to high-energy particles |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8772833B2 (en) * | 2011-09-21 | 2014-07-08 | Electronics And Telecommunications Research Institute | Power semiconductor device and fabrication method thereof |
JP6276150B2 (ja) | 2014-09-16 | 2018-02-07 | 株式会社東芝 | 半導体装置 |
Citations (2)
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JP2006253654A (ja) * | 2005-02-10 | 2006-09-21 | Nec Electronics Corp | 電界効果トランジスタおよび電界効果トランジスタの製造方法 |
WO2006132418A1 (ja) * | 2005-06-10 | 2006-12-14 | Nec Corporation | 電界効果トランジスタ |
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JP3612533B2 (ja) | 1996-10-29 | 2005-01-19 | 株式会社デンソー | 半導体装置の製造方法 |
US7573078B2 (en) * | 2004-05-11 | 2009-08-11 | Cree, Inc. | Wide bandgap transistors with multiple field plates |
JP4650224B2 (ja) * | 2004-11-19 | 2011-03-16 | 日亜化学工業株式会社 | 電界効果トランジスタ |
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Patent Citations (2)
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JP2006253654A (ja) * | 2005-02-10 | 2006-09-21 | Nec Electronics Corp | 電界効果トランジスタおよび電界効果トランジスタの製造方法 |
WO2006132418A1 (ja) * | 2005-06-10 | 2006-12-14 | Nec Corporation | 電界効果トランジスタ |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012018972A (ja) * | 2010-07-06 | 2012-01-26 | Sanken Electric Co Ltd | 半導体装置 |
JP6195041B1 (ja) * | 2016-10-24 | 2017-09-13 | 三菱電機株式会社 | 化合物半導体デバイスの製造方法 |
CN109891561A (zh) * | 2016-10-24 | 2019-06-14 | 三菱电机株式会社 | 化合物半导体器件及其制造方法 |
DE112016007367T5 (de) | 2016-10-24 | 2019-07-04 | Mitsubishi Electric Corporation | Verbundhalbleitervorrichtung |
DE112016007368T5 (de) | 2016-10-24 | 2019-07-11 | Mitsubishi Electric Corporation | Verfahren zur Herstellung einer Verbindungshalbleitervorrichtung |
DE112017005359T5 (de) | 2016-10-24 | 2019-07-11 | Mitsubishi Electric Corp. | Verbundhalbleitervorrichtung |
US10644119B2 (en) | 2016-10-24 | 2020-05-05 | Mitsubishi Electric Corporation | Compound semiconductor device |
US10957770B2 (en) | 2016-10-24 | 2021-03-23 | Mitsubishi Electric Corporation | Method for manufacturing compound semiconductor device |
CN109891561B (zh) * | 2016-10-24 | 2021-09-21 | 三菱电机株式会社 | 化合物半导体器件的制造方法 |
DE112016007368B4 (de) | 2016-10-24 | 2022-01-20 | Mitsubishi Electric Corporation | Verfahren zur Herstellung einer Verbindungshalbleitervorrichtung |
US11283021B2 (en) | 2016-10-24 | 2022-03-22 | Mitsubishi Electric Corporation | Compound semiconductor device including MOTT insulator for preventing device damage due to high-energy particles |
DE112017005359B4 (de) | 2016-10-24 | 2022-12-15 | Mitsubishi Electric Corp. | Verbundhalbleitervorrichtung |
DE112016007367B4 (de) | 2016-10-24 | 2023-01-12 | Mitsubishi Electric Corporation | Verbundhalbleitervorrichtung |
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US8253169B2 (en) | 2012-08-28 |
JP5388514B2 (ja) | 2014-01-15 |
US20100059798A1 (en) | 2010-03-11 |
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