JP5200372B2 - 電界効果トランジスタおよびその製造方法 - Google Patents
電界効果トランジスタおよびその製造方法 Download PDFInfo
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- JP5200372B2 JP5200372B2 JP2006331076A JP2006331076A JP5200372B2 JP 5200372 B2 JP5200372 B2 JP 5200372B2 JP 2006331076 A JP2006331076 A JP 2006331076A JP 2006331076 A JP2006331076 A JP 2006331076A JP 5200372 B2 JP5200372 B2 JP 5200372B2
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/40—FETs having zero-dimensional [0D], one-dimensional [1D] or two-dimensional [2D] charge carrier gas channels
- H10D30/47—FETs having zero-dimensional [0D], one-dimensional [1D] or two-dimensional [2D] charge carrier gas channels having two-dimensional [2D] charge carrier gas channels, e.g. nanoribbon FETs or high electron mobility transistors [HEMT]
- H10D30/471—High electron mobility transistors [HEMT] or high hole mobility transistors [HHMT]
- H10D30/475—High electron mobility transistors [HEMT] or high hole mobility transistors [HHMT] having wider bandgap layer formed on top of lower bandgap active layer, e.g. undoped barrier HEMTs such as i-AlGaN/GaN HEMTs
- H10D30/4755—High electron mobility transistors [HEMT] or high hole mobility transistors [HHMT] having wider bandgap layer formed on top of lower bandgap active layer, e.g. undoped barrier HEMTs such as i-AlGaN/GaN HEMTs having wide bandgap charge-carrier supplying layers, e.g. modulation doped HEMTs such as n-AlGaAs/GaAs HEMTs
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/015—Manufacture or treatment of FETs having heterojunction interface channels or heterojunction gate electrodes, e.g. HEMT
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/10—Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
- H10D62/13—Semiconductor regions connected to electrodes carrying current to be rectified, amplified or switched, e.g. source or drain regions
- H10D62/149—Source or drain regions of field-effect devices
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/80—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials
- H10D62/85—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group III-V materials, e.g. GaAs
- H10D62/8503—Nitride Group III-V materials, e.g. AlN or GaN
Landscapes
- Junction Field-Effect Transistors (AREA)
- Electrodes Of Semiconductors (AREA)
Description
2 アンドープGaN層(電子走行層)
3 高抵抗またはn形AlGaN層(電子供給層)
4 ゲート電極
5 ソース電極
6 ドレイン電極
7 第1の高濃度領域
8 第2の高濃度領域
9 2次元電子ガスの層
Claims (4)
- 基板上に窒化物半導体からなる電子走行層と電子供給層が順次形成され、電子供給層上にゲート電極、ソース電極およびドレイン電極を形成した電界効果トランジスタにおいて、
ソース電極およびドレイン電極直下の深さ方向に、電子供給層と電子走行層の間の2次元電子ガスの層を挟むように2重の不純物の高濃度領域が形成され、
それぞれの高濃度領域は、ゲート電極直下の電子供給層と電子走行層の不純物濃度よりそれぞれ高濃度となるよう形成されており、かつソース電極とゲート電極の間およびドレイン電極とゲート電極の間の半導体層の表面が平坦であり、
前記2次元電子ガスの層の不純物濃度は、前記2重の不純物の高濃度領域のどちらよりも低いことを特徴とする電界効果トランジスタ。 - 前記2重の不純物の高濃度領域は、第1の高濃度領域と第2の高濃度領域とからなり、
電子供給層内に形成される前記第1の高濃度領域のキャリア濃度が1×1018〜1020cm-3、電子走行層内に形成される前記第2の高濃度領域のキャリア濃度1×1018〜1019cm-3で、かつ前記第1の高濃度領域のキャリア濃度が前記第2の高濃度領域のキャリア濃度より高くなるように形成されている請求項1記載の電界効果トランジスタ。 - 基板上に窒化物半導体からなる電子走行層と電子供給層を順次形成し、電子供給層上にゲート電極、ソース電極およびドレイン電極を形成する電界効果トランジスタの製造方法において、
ソース電極およびドレイン電極直下の電子供給層と電子走行層に2段階で不純物を注入して、その深さ方向に、電子供給層と電子走行層間の2次元電子ガスの層を挟むように2重の不純物の高濃度領域を形成し、それぞれの高濃度領域がゲート電極直下の電子供給層と電子走行層の不純物濃度よりそれぞれ高濃度となるよう形成したと共に、
前記2次元電子ガスの層の不純物濃度は、前記2重の不純物の高濃度領域のどちらよりも低くなるように形成したことを特徴とする電界効果トランジスタの製造方法。 - 前記2重の不純物の高濃度領域は、第1の高濃度領域と第2の高濃度領域とからなり、
電子供給層内に形成される前記第1の高濃度領域のキャリア濃度が1×1018〜1020cm-3、電子走行層内に形成される前記第2の高濃度領域のキャリア濃度1×1018〜1019cm-3で、かつ前記第1の高濃度領域のキャリア濃度が前記第2の高濃度領域のキャリア濃度より高くなるように注入不純物イオンの加速エネルギとドーズ量が調整される請求項3記載の電界効果トランジスタの製造方法。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006331076A JP5200372B2 (ja) | 2006-12-07 | 2006-12-07 | 電界効果トランジスタおよびその製造方法 |
| US11/902,964 US7786509B2 (en) | 2006-12-07 | 2007-09-26 | Field-effect transistor and method of making same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006331076A JP5200372B2 (ja) | 2006-12-07 | 2006-12-07 | 電界効果トランジスタおよびその製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2008147311A JP2008147311A (ja) | 2008-06-26 |
| JP5200372B2 true JP5200372B2 (ja) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006331076A Expired - Fee Related JP5200372B2 (ja) | 2006-12-07 | 2006-12-07 | 電界効果トランジスタおよびその製造方法 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US7786509B2 (ja) |
| JP (1) | JP5200372B2 (ja) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9711633B2 (en) * | 2008-05-09 | 2017-07-18 | Cree, Inc. | Methods of forming group III-nitride semiconductor devices including implanting ions directly into source and drain regions and annealing to activate the implanted ions |
| US8159004B2 (en) * | 2008-08-26 | 2012-04-17 | Sanken Electric Co., Ltd. | Compound semiconductor device having dopant concentration gradient |
| JP5737948B2 (ja) * | 2008-12-26 | 2015-06-17 | ルネサスエレクトロニクス株式会社 | ヘテロ接合電界効果トランジスタ、ヘテロ接合電界トランジスタの製造方法、および電子装置 |
| JP5568891B2 (ja) * | 2009-06-03 | 2014-08-13 | 日本電気株式会社 | ヘテロ接合電界効果トランジスタ、その製造方法 |
| JP5587564B2 (ja) * | 2009-06-19 | 2014-09-10 | ルネサスエレクトロニクス株式会社 | 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 |
| WO2010151857A2 (en) * | 2009-06-26 | 2010-12-29 | Cornell University | Method for forming iii-v semiconductor structures including aluminum-silicon nitride passivation |
| KR101779497B1 (ko) | 2010-08-26 | 2017-09-18 | 엘지이노텍 주식회사 | 나노입자가 도핑된 열전소자를 포함하는 열전모듈 및 그 제조 방법 |
| US10134727B2 (en) * | 2012-09-28 | 2018-11-20 | Intel Corporation | High breakdown voltage III-N depletion mode MOS capacitors |
| US9064709B2 (en) * | 2012-09-28 | 2015-06-23 | Intel Corporation | High breakdown voltage III-N depletion mode MOS capacitors |
| JP6623691B2 (ja) | 2015-10-30 | 2019-12-25 | 富士通株式会社 | 化合物半導体装置及びその製造方法 |
| CN108649071B (zh) * | 2018-05-17 | 2019-03-19 | 苏州汉骅半导体有限公司 | 半导体器件及其制造方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0691249B2 (ja) * | 1991-01-10 | 1994-11-14 | インターナショナル・ビジネス・マシーンズ・コーポレイション | 変調ドープ形misfet及びその製造方法 |
| JP3767759B2 (ja) | 1997-02-07 | 2006-04-19 | 株式会社村田製作所 | 電界効果型半導体素子 |
| JP3733420B2 (ja) * | 2002-03-01 | 2006-01-11 | 独立行政法人産業技術総合研究所 | 窒化物半導体材料を用いたヘテロ接合電界効果型トランジスタ |
| JP2005116858A (ja) * | 2003-10-09 | 2005-04-28 | Furukawa Electric Co Ltd:The | 半導体電子デバイス及び半導体電子デバイスの製造方法 |
| US7419892B2 (en) * | 2005-12-13 | 2008-09-02 | Cree, Inc. | Semiconductor devices including implanted regions and protective layers and methods of forming the same |
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- 2006-12-07 JP JP2006331076A patent/JP5200372B2/ja not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| US7786509B2 (en) | 2010-08-31 |
| US20090001423A1 (en) | 2009-01-01 |
| JP2008147311A (ja) | 2008-06-26 |
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