JP2015204304A - スイッチング素子 - Google Patents
スイッチング素子 Download PDFInfo
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- JP2015204304A JP2015204304A JP2014081277A JP2014081277A JP2015204304A JP 2015204304 A JP2015204304 A JP 2015204304A JP 2014081277 A JP2014081277 A JP 2014081277A JP 2014081277 A JP2014081277 A JP 2014081277A JP 2015204304 A JP2015204304 A JP 2015204304A
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- 239000004065 semiconductor Substances 0.000 claims abstract description 97
- 229910002704 AlGaN Inorganic materials 0.000 claims description 40
- 239000012535 impurity Substances 0.000 claims description 26
- 150000004767 nitrides Chemical class 0.000 claims description 26
- 230000005533 two-dimensional electron gas Effects 0.000 description 17
- 230000004888 barrier function Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000758 substrate Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 238000007740 vapor deposition Methods 0.000 description 4
- 238000001312 dry etching Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 description 2
- XCZXGTMEAKBVPV-UHFFFAOYSA-N trimethylgallium Chemical compound C[Ga](C)C XCZXGTMEAKBVPV-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000004047 hole gas Substances 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
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- 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
- H01L29/7782—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 confinement of carriers by at least two heterojunctions, e.g. DHHEMT, quantum well HEMT, DHMODFET
- H01L29/7783—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 confinement of carriers by at least two heterojunctions, e.g. DHHEMT, quantum well HEMT, DHMODFET using III-V semiconductor material
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- 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
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- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
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- H01L29/66409—Unipolar field-effect transistors
- H01L29/66446—Unipolar field-effect transistors with an active layer made of a group 13/15 material, e.g. group 13/15 velocity modulation transistor [VMT], group 13/15 negative resistance FET [NERFET]
- H01L29/66462—Unipolar field-effect transistors with an active layer made of a group 13/15 material, e.g. group 13/15 velocity modulation transistor [VMT], group 13/15 negative resistance FET [NERFET] with a heterojunction interface channel or gate, e.g. HFET, HIGFET, SISFET, HJFET, HEMT
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- 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
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- Junction Field-Effect Transistors (AREA)
Abstract
Description
(特徴1)第3半導体層の第2導電型不純物濃度が、第4半導体層の第2導電型不純物濃度よりも高い。
(特徴2)第1半導体層、第2半導体層、第3半導体層及び第4半導体層が、窒化物半導体層である。
(特徴3)第1半導体層が、GaN層であり、第2半導体層が、n型のAlGaN層であり、第3半導体層が、p型のGaN層であり、第4半導体層が、AlxGa1−xN層であり、0<x<0.2である。なお、上記の各化合物において、サフィックスを付していない元素については、任意の比率を採用することができる。
(特徴4)若しくは、第1半導体層が、GaN層であり、第2半導体層が、n型またはアンドープのAlGaN層であり、第3半導体層が、p型のGaN層であり、第4半導体層が、InyAlxGa1−x―yN層であり、かつ、第3半導体層よりもバンドギャップが大きい層であってもよい。
(特徴5)ゲート電極は、直接、または、第2導電型の半導体層を介して、第4半導体層に接続されている。
本明細書または図面に説明した技術要素は、単独であるいは各種の組み合わせによって技術的有用性を発揮するものであり、出願時請求項記載の組み合わせに限定されるものではない。また、本明細書または図面に例示した技術は複数目的を同時に達成するものであり、そのうちの一つの目的を達成すること自体で技術的有用性を持つものである。
12:基板
14:バッファ層
16:電子走行層
18:電子供給層
18a:ヘテロ接合界面
20:絶縁膜
22:p型GaN層
24:p型AlGaN層
24a:ヘテロ接合界面
26:p型GaN層
28:ゲート電極
30:ソース電極
32:ドレイン電極
50:凸部
100:矢印
200:n型GaN層
200a:接合面
Claims (5)
- 第1半導体層と、
第1導電型またはアンドープであり、前記第1半導体層上に配置されており、前記第1半導体層に対してヘテロ接合している第2半導体層と、
第2導電型であり、前記第2半導体層上に配置されている第3半導体層と、
第2導電型であり、前記第3半導体層上に配置されており、前記第3半導体層に対してヘテロ接合している第4半導体層と、
前記第4半導体層に対して電気的に接続されているゲート電極、
を備えるスイッチング素子。 - 第3半導体層の第2導電型不純物濃度が、第4半導体層の第2導電型不純物濃度よりも高い請求項1のスイッチング素子。
- 第1半導体層、第2半導体層、第3半導体層及び第4半導体層が、窒化物半導体層である請求項1または2のスイッチング素子。
- 第1半導体層が、GaN層であり、
第2半導体層が、n型またはアンドープのAlGaN層であり、
第3半導体層が、p型のGaN層であり、
第4半導体層が、AlxGa1−xN層であり、
0<x<0.2である請求項3のスイッチング素子。 - 第1半導体層が、GaN層であり、
第2半導体層が、n型またはアンドープのAlGaN層であり、
第3半導体層が、p型のGaN層であり、
第4半導体層が、InyAlxGa1−x―yN層であり、かつ、第3半導体層よりもバンドギャップが大きい、
請求項3のスイッチング素子。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014081277A JP6170007B2 (ja) | 2014-04-10 | 2014-04-10 | スイッチング素子 |
US14/657,083 US9401421B2 (en) | 2014-04-10 | 2015-03-13 | Switching device |
DE102015104731.4A DE102015104731A1 (de) | 2014-04-10 | 2015-03-27 | Schalteinrichtung |
KR1020150047567A KR20150117608A (ko) | 2014-04-10 | 2015-04-03 | 스위칭 소자 |
CN201510171237.0A CN104979387A (zh) | 2014-04-10 | 2015-04-10 | 开关元件 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014081277A JP6170007B2 (ja) | 2014-04-10 | 2014-04-10 | スイッチング素子 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2015204304A true JP2015204304A (ja) | 2015-11-16 |
JP6170007B2 JP6170007B2 (ja) | 2017-07-26 |
Family
ID=54193345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014081277A Expired - Fee Related JP6170007B2 (ja) | 2014-04-10 | 2014-04-10 | スイッチング素子 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9401421B2 (ja) |
JP (1) | JP6170007B2 (ja) |
KR (1) | KR20150117608A (ja) |
CN (1) | CN104979387A (ja) |
DE (1) | DE102015104731A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9773900B2 (en) | 2015-10-02 | 2017-09-26 | Toyota Jidosha Kabushiki Kaisha | Semiconductor device |
WO2020158394A1 (ja) * | 2019-02-01 | 2020-08-06 | ローム株式会社 | 窒化物半導体装置 |
WO2020213291A1 (ja) * | 2019-04-15 | 2020-10-22 | ローム株式会社 | 窒化物半導体装置およびその製造方法 |
JP2021009952A (ja) * | 2019-07-02 | 2021-01-28 | ローム株式会社 | 窒化物半導体装置およびその製造方法 |
WO2021153266A1 (ja) * | 2020-01-28 | 2021-08-05 | ローム株式会社 | 窒化物半導体装置 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
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ES2819878T3 (es) * | 2016-03-10 | 2021-04-19 | Epitronic Holdings Pte Ltd | Sensor microelectrónico para el diagnóstico intestinal y del tracto digestivo y seguimiento de la motilidad del tracto digestivo |
RU2640966C1 (ru) * | 2016-09-19 | 2018-01-12 | Акционерное общество "Научно-производственное предприятие "Пульсар" | ПСЕВДОМОРФНОЕ КОММУТИРУЮЩЕЕ УСТРОЙСТВО НА ОСНОВЕ ГЕТЕРОСТРУКТУРЫ AlGaN/InGaN |
TWI613814B (zh) * | 2016-11-29 | 2018-02-01 | 新唐科技股份有限公司 | 增強型高電子遷移率電晶體元件 |
US10381456B2 (en) * | 2017-05-04 | 2019-08-13 | Texas Instruments Incorporated | Group IIIA-N HEMT with a tunnel diode in the gate stack |
CN109801963B (zh) * | 2017-11-17 | 2023-05-30 | 世界先进积体电路股份有限公司 | 半导体装置及其形成方法 |
CN108511522B (zh) * | 2018-03-16 | 2022-04-26 | 英诺赛科(珠海)科技有限公司 | p-GaN基增强型HEMT器件 |
CN114335166B (zh) * | 2020-09-30 | 2023-05-05 | 华为技术有限公司 | 高电子迁移率晶体管hemt器件、晶圆、封装器件和电子设备 |
EP4020592A1 (en) * | 2020-12-22 | 2022-06-29 | Infineon Technologies Austria AG | Group iii nitride-based transistor device |
US20220376041A1 (en) * | 2021-04-12 | 2022-11-24 | Innoscience (Suzhou) Technology Co., Ltd. | Semiconductor device and method for manufacturing the same |
TWI839628B (zh) * | 2021-08-09 | 2024-04-21 | 新唐科技股份有限公司 | 半導體結構及其製造方法 |
CN114122107B (zh) * | 2021-10-28 | 2023-07-18 | 华南理工大学 | 一种周期栅结构的p-GaN常闭型功率器件 |
WO2023191776A1 (en) * | 2022-03-30 | 2023-10-05 | Monde Wireless Inc. | N-polar iii-nitride device structures with a p-type layer |
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2014
- 2014-04-10 JP JP2014081277A patent/JP6170007B2/ja not_active Expired - Fee Related
-
2015
- 2015-03-13 US US14/657,083 patent/US9401421B2/en active Active
- 2015-03-27 DE DE102015104731.4A patent/DE102015104731A1/de not_active Ceased
- 2015-04-03 KR KR1020150047567A patent/KR20150117608A/ko not_active Application Discontinuation
- 2015-04-10 CN CN201510171237.0A patent/CN104979387A/zh active Pending
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JP7513595B2 (ja) | 2019-04-15 | 2024-07-09 | ローム株式会社 | 窒化物半導体装置およびその製造方法 |
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WO2021153266A1 (ja) * | 2020-01-28 | 2021-08-05 | ローム株式会社 | 窒化物半導体装置 |
Also Published As
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JP6170007B2 (ja) | 2017-07-26 |
DE102015104731A1 (de) | 2015-10-15 |
US9401421B2 (en) | 2016-07-26 |
US20150295073A1 (en) | 2015-10-15 |
CN104979387A (zh) | 2015-10-14 |
KR20150117608A (ko) | 2015-10-20 |
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