JP4888115B2 - 電界効果トランジスタ - Google Patents
電界効果トランジスタ Download PDFInfo
- Publication number
- JP4888115B2 JP4888115B2 JP2006510264A JP2006510264A JP4888115B2 JP 4888115 B2 JP4888115 B2 JP 4888115B2 JP 2006510264 A JP2006510264 A JP 2006510264A JP 2006510264 A JP2006510264 A JP 2006510264A JP 4888115 B2 JP4888115 B2 JP 4888115B2
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- Prior art keywords
- field plate
- film
- drain electrode
- electrode
- insulating film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000005669 field effect Effects 0.000 title claims description 19
- 229910002704 AlGaN Inorganic materials 0.000 claims description 33
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 27
- 239000004065 semiconductor Substances 0.000 claims description 21
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 7
- 150000004767 nitrides Chemical class 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 description 25
- 230000005684 electric field Effects 0.000 description 18
- 239000000758 substrate Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 11
- 239000002184 metal Substances 0.000 description 7
- 238000005530 etching Methods 0.000 description 5
- 230000001629 suppression Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000001451 molecular beam epitaxy Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000000137 annealing Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 238000007740 vapor deposition Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 230000005533 two-dimensional electron gas Effects 0.000 description 1
Images
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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/402—Field plates
-
- 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
-
- 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
- H01L29/7787—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 with wide bandgap charge-carrier supplying layer, e.g. direct single heterostructure MODFET
-
- 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
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)
- Junction Field-Effect Transistors (AREA)
Description
Field Effect Transistor;以下、「HJFET」という。)の断面構造図である。このような従来技術のHJFETは、"2001年インターナショナル・エレクトロン・デバイス・ミーティング・ダイジェスト(IEDM01-381〜384)、安藤(Y.Ando)"に報告されている。
vol.37 p.196-197)、Li等"に報告されている。
図4は、本発明の第1の実施形態に係るHJFETの断面構造図である。
Beam Epitaxy;MBE)成長法によって半導体を成長させる。このようにして形成した半導体層は、基板10側から順に、アンドープのAlNからなるバッファ層11(膜厚20nm)、アンドープのGaNからなるチャネル層12(膜厚2μm)、アンドープのAl0.2Ga0.8NからなるAlGaN供給層13(膜厚25nm)である。
図5は、本発明の第2の実施形態に係るHJFETの断面構造図である。
図7は、本発明の第3の実施形態に係るHJFETの断面構造図である。
Claims (7)
- ヘテロ接合を含むIII族窒化物半導体層構造と、該半導体層構造上に互いに離間して形成されたソース電極およびドレイン電極と、前記ソース電極と前記ドレイン電極との間に形成されたゲート電極と、前記半導体層構造上に形成された絶縁膜と、を有する電界効果トランジスタにおいて、
前記ゲート電極は、前記ドレイン電極側にひさし状に張り出し、かつ前記絶縁膜上に形成されたフィールドプレート部を有しており、
前記絶縁膜の前記フィールドプレート部と前記半導体層構造との間に位置する部分の厚さが、前記ゲート電極から前記ドレイン電極の方向に向かって次第に厚くなるように変化しており、
前記絶縁膜は、前記ドレイン電極側に延設されて前記ドレイン電極の表面の一部を覆うように形成されており、
前記ドレイン電極に接続され、前記絶縁膜の、前記ドレイン電極表面を覆う部分を覆うドレインフィールドプレート電極が形成されていることを特徴とする、電界効果トランジスタ。 - 前記半導体層構造はAlGaN/GaNヘテロ構造を有している、請求項1に記載の電界効果トランジスタ。
- 前記絶縁膜の前記部分の厚さが階段状に変化している、請求項1または2に記載の電界効果トランジスタ。
- 前記絶縁膜の前記部分の厚さが連続的に変化している、請求項1または2に記載の電界効果トランジスタ。
- 前記絶縁膜がSiON膜からなる、請求項1から4のいずれか1項に記載の電界効果トランジスタ。
- 前記絶縁膜がSiO2膜またはSiN膜からなる、請求項1から4のいずれか1項に記載の電界効果トランジスタ。
- 前記絶縁膜がSiN膜とSiO2膜との積層膜からなる、請求項1から4のいずれか1項に記載の電界効果トランジスタ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006510264A JP4888115B2 (ja) | 2004-02-20 | 2005-02-21 | 電界効果トランジスタ |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004044459 | 2004-02-20 | ||
JP2004044459 | 2004-02-20 | ||
PCT/JP2005/002712 WO2005081304A1 (ja) | 2004-02-20 | 2005-02-21 | 電界効果トランジスタ |
JP2006510264A JP4888115B2 (ja) | 2004-02-20 | 2005-02-21 | 電界効果トランジスタ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2005081304A1 JPWO2005081304A1 (ja) | 2007-10-25 |
JP4888115B2 true JP4888115B2 (ja) | 2012-02-29 |
Family
ID=34879344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006510264A Expired - Fee Related JP4888115B2 (ja) | 2004-02-20 | 2005-02-21 | 電界効果トランジスタ |
Country Status (3)
Country | Link |
---|---|
US (1) | US20070164326A1 (ja) |
JP (1) | JP4888115B2 (ja) |
WO (1) | WO2005081304A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2811528A1 (en) | 2013-06-03 | 2014-12-10 | Renesas Electronics Corporation | Semiconductor device and method of manufacturing a semiconductor device |
JP2015079922A (ja) * | 2013-10-18 | 2015-04-23 | 古河電気工業株式会社 | 窒化物半導体装置、ダイオード、および電界効果トランジスタ |
US9911842B2 (en) | 2013-10-18 | 2018-03-06 | Furukawa Electric Co., Ltd. | Nitride semiconductor device, production method thereof, diode, and field effect transistor |
US10332976B2 (en) | 2015-08-28 | 2019-06-25 | Sharp Kabushiki Kaisha | Nitride semiconductor device |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5055737B2 (ja) * | 2005-09-30 | 2012-10-24 | サンケン電気株式会社 | 2次元キャリアガス層を有する電界効果トランジスタ |
WO2008035403A1 (en) * | 2006-09-20 | 2008-03-27 | Fujitsu Limited | Field-effect transistor |
JP2008243848A (ja) * | 2007-03-23 | 2008-10-09 | Sanken Electric Co Ltd | 半導体装置 |
US7884394B2 (en) * | 2009-02-09 | 2011-02-08 | Transphorm Inc. | III-nitride devices and circuits |
US8390000B2 (en) | 2009-08-28 | 2013-03-05 | Transphorm Inc. | Semiconductor devices with field plates |
JP5625336B2 (ja) * | 2009-11-30 | 2014-11-19 | サンケン電気株式会社 | 半導体装置 |
JP2011138973A (ja) * | 2009-12-29 | 2011-07-14 | New Japan Radio Co Ltd | 窒化物半導体装置 |
JP2011142182A (ja) * | 2010-01-06 | 2011-07-21 | Sharp Corp | 電界効果トランジスタ |
CN102315262B (zh) * | 2010-07-06 | 2013-11-20 | 西安能讯微电子有限公司 | 半导体器件及其制造方法 |
JP5942371B2 (ja) * | 2011-09-21 | 2016-06-29 | 富士通株式会社 | 化合物半導体装置及びその製造方法 |
JP5673501B2 (ja) * | 2011-11-14 | 2015-02-18 | 富士通株式会社 | 化合物半導体装置 |
US8530978B1 (en) * | 2011-12-06 | 2013-09-10 | Hrl Laboratories, Llc | High current high voltage GaN field effect transistors and method of fabricating same |
JP2013120846A (ja) * | 2011-12-07 | 2013-06-17 | Sharp Corp | 電界効果トランジスタ |
US9093420B2 (en) | 2012-04-18 | 2015-07-28 | Rf Micro Devices, Inc. | Methods for fabricating high voltage field effect transistor finger terminations |
US9917080B2 (en) * | 2012-08-24 | 2018-03-13 | Qorvo US. Inc. | Semiconductor device with electrical overstress (EOS) protection |
US9147632B2 (en) | 2012-08-24 | 2015-09-29 | Rf Micro Devices, Inc. | Semiconductor device having improved heat dissipation |
US8981381B2 (en) * | 2012-11-16 | 2015-03-17 | Vishay General Semiconductor Llc | GaN-based Schottky diode having dual metal, partially recessed electrode |
US9202880B1 (en) * | 2013-04-23 | 2015-12-01 | Hrl Laboratories, Llc | Etch-based fabrication process for stepped field-plate wide-bandgap |
JP6252122B2 (ja) | 2013-11-13 | 2017-12-27 | 富士通株式会社 | 半導体装置及び半導体装置の製造方法 |
US10276712B2 (en) | 2014-05-29 | 2019-04-30 | Hrl Laboratories, Llc | III-nitride field-effect transistor with dual gates |
US9455327B2 (en) | 2014-06-06 | 2016-09-27 | Qorvo Us, Inc. | Schottky gated transistor with interfacial layer |
US9536803B2 (en) | 2014-09-05 | 2017-01-03 | Qorvo Us, Inc. | Integrated power module with improved isolation and thermal conductivity |
US10062684B2 (en) | 2015-02-04 | 2018-08-28 | Qorvo Us, Inc. | Transition frequency multiplier semiconductor device |
US10615158B2 (en) | 2015-02-04 | 2020-04-07 | Qorvo Us, Inc. | Transition frequency multiplier semiconductor device |
WO2016147541A1 (ja) * | 2015-03-17 | 2016-09-22 | パナソニック株式会社 | 窒化物半導体装置 |
US9812532B1 (en) | 2015-08-28 | 2017-11-07 | Hrl Laboratories, Llc | III-nitride P-channel transistor |
WO2017087197A1 (en) | 2015-11-19 | 2017-05-26 | Hrl Laboratories, Llc | Iii-nitride field-effect transistor with dual gates |
JP6472839B2 (ja) * | 2017-06-20 | 2019-02-20 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
CN107591439A (zh) * | 2017-08-18 | 2018-01-16 | 电子科技大学 | 一种带有阶梯场板和阶梯钝化层的晶体管 |
CN113178480B (zh) * | 2021-05-12 | 2022-10-18 | 华南师范大学 | 具有栅漏复合阶梯场板结构的增强型hemt射频器件及其制备方法 |
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JP2000100831A (ja) * | 1998-09-22 | 2000-04-07 | Nec Corp | 電界効果型トランジスタ |
JP2000323495A (ja) * | 1999-05-07 | 2000-11-24 | Sony Corp | 接合型電界効果トランジスタ及びその作製方法 |
JP2002246589A (ja) * | 2001-02-19 | 2002-08-30 | Fujitsu Ltd | 電界効果半導体装置 |
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US7268375B2 (en) * | 2003-10-27 | 2007-09-11 | Sensor Electronic Technology, Inc. | Inverted nitride-based semiconductor structure |
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-
2005
- 2005-02-21 US US10/588,775 patent/US20070164326A1/en not_active Abandoned
- 2005-02-21 WO PCT/JP2005/002712 patent/WO2005081304A1/ja active Application Filing
- 2005-02-21 JP JP2006510264A patent/JP4888115B2/ja not_active Expired - Fee Related
Patent Citations (6)
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JP2000100831A (ja) * | 1998-09-22 | 2000-04-07 | Nec Corp | 電界効果型トランジスタ |
JP2000323495A (ja) * | 1999-05-07 | 2000-11-24 | Sony Corp | 接合型電界効果トランジスタ及びその作製方法 |
JP2002246589A (ja) * | 2001-02-19 | 2002-08-30 | Fujitsu Ltd | 電界効果半導体装置 |
JP2003273130A (ja) * | 2002-03-15 | 2003-09-26 | Matsushita Electric Ind Co Ltd | 半導体装置及びその製造方法 |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2811528A1 (en) | 2013-06-03 | 2014-12-10 | Renesas Electronics Corporation | Semiconductor device and method of manufacturing a semiconductor device |
KR20140142147A (ko) | 2013-06-03 | 2014-12-11 | 르네사스 일렉트로닉스 가부시키가이샤 | 반도체장치 및 반도체장치의 제조방법 |
US9559183B2 (en) | 2013-06-03 | 2017-01-31 | Renesas Electronics Corporation | Semiconductor device with varying thickness of insulating film between electrode and gate electrode and method of manufacturing semiconductor device |
US9984884B2 (en) | 2013-06-03 | 2018-05-29 | Renesas Electronics Corporation | Method of manufacturing semiconductor device with a multi-layered gate dielectric |
US10410868B2 (en) | 2013-06-03 | 2019-09-10 | Renesas Electronics Corporation | Semiconductor device and method of manufacturing semiconductor device |
JP2015079922A (ja) * | 2013-10-18 | 2015-04-23 | 古河電気工業株式会社 | 窒化物半導体装置、ダイオード、および電界効果トランジスタ |
US9911842B2 (en) | 2013-10-18 | 2018-03-06 | Furukawa Electric Co., Ltd. | Nitride semiconductor device, production method thereof, diode, and field effect transistor |
US10332976B2 (en) | 2015-08-28 | 2019-06-25 | Sharp Kabushiki Kaisha | Nitride semiconductor device |
Also Published As
Publication number | Publication date |
---|---|
JPWO2005081304A1 (ja) | 2007-10-25 |
WO2005081304A1 (ja) | 2005-09-01 |
US20070164326A1 (en) | 2007-07-19 |
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