JP7828204B2 - 半導体装置 - Google Patents
半導体装置Info
- Publication number
- JP7828204B2 JP7828204B2 JP2022045873A JP2022045873A JP7828204B2 JP 7828204 B2 JP7828204 B2 JP 7828204B2 JP 2022045873 A JP2022045873 A JP 2022045873A JP 2022045873 A JP2022045873 A JP 2022045873A JP 7828204 B2 JP7828204 B2 JP 7828204B2
- Authority
- JP
- Japan
- Prior art keywords
- semiconductor layer
- semiconductor
- electrode
- thickness
- conductivity type
- 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.)
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Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/64—Double-diffused metal-oxide semiconductor [DMOS] FETs
- H10D30/66—Vertical DMOS [VDMOS] FETs
- H10D30/665—Vertical DMOS [VDMOS] FETs having edge termination structures
-
- 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
- H10D62/102—Constructional design considerations for preventing surface leakage or controlling electric field concentration
- H10D62/103—Constructional design considerations for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse-biased devices
- H10D62/105—Constructional design considerations for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse-biased devices by having particular doping profiles, shapes or arrangements of PN junctions; by having supplementary regions, e.g. junction termination extension [JTE]
- H10D62/106—Constructional design considerations for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse-biased devices by having particular doping profiles, shapes or arrangements of PN junctions; by having supplementary regions, e.g. junction termination extension [JTE] having supplementary regions doped oppositely to or in rectifying contact with regions of the semiconductor bodies, e.g. guard rings with PN or Schottky junctions
-
- 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
- H10D62/102—Constructional design considerations for preventing surface leakage or controlling electric field concentration
- H10D62/103—Constructional design considerations for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse-biased devices
- H10D62/105—Constructional design considerations for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse-biased devices by having particular doping profiles, shapes or arrangements of PN junctions; by having supplementary regions, e.g. junction termination extension [JTE]
- H10D62/109—Reduced surface field [RESURF] PN junction structures
- H10D62/111—Multiple RESURF structures, e.g. double RESURF or 3D-RESURF structures
-
- 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
- H10D62/124—Shapes, relative sizes or dispositions of the regions of semiconductor bodies or of junctions between the regions
- H10D62/125—Shapes of junctions between the regions
-
- 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
- H10D62/83—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group IV materials, e.g. B-doped Si or undoped Ge
- H10D62/832—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group IV materials, e.g. B-doped Si or undoped Ge being Group IV materials comprising two or more elements, e.g. SiGe
- H10D62/8325—Silicon carbide
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D8/00—Diodes
- H10D8/01—Manufacture or treatment
- H10D8/051—Manufacture or treatment of Schottky diodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D8/00—Diodes
- H10D8/60—Schottky-barrier diodes
-
- 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
- H10D62/124—Shapes, relative sizes or dispositions of the regions of semiconductor bodies or of junctions between the regions
- H10D62/126—Top-view geometrical layouts of the regions or the junctions
Landscapes
- Electrodes Of Semiconductors (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
Description
Claims (5)
- 活性領域と、前記活性領域を囲む終端領域を有する第1導電形の第1半導体層と、
前記第1半導体層と電気的に接続された第1電極と、
前記活性領域において、前記第1電極との間に前記第1半導体層が位置するように設けられ、前記第1半導体層と電気的に接続された第2電極と、
前記第1半導体層と前記第2電極との間に設けられ、前記第1電極から前記第2電極に向かう第1方向において第1層厚を有する第2導電形の第2半導体層と、
前記終端領域において、前記第2半導体層を囲むように設けられ、前記第1方向において前記第1層厚よりも長い第2層厚を有する第2導電形の第3半導体層と、
前記終端領域において、前記第2半導体層および前記第3半導体層を囲むように設けられ、前記第3半導体層から離間し、且つ前記第1方向において前記第2層厚よりも短い第3層厚を有する第2導電形の第4半導体層と、
前記第1半導体層との間に前記第3半導体層および前記第4半導体層が位置するように設けられ、前記第2半導体層、前記第3半導体層および前記第4半導体層と電気的に接続された第2導電形の第5半導体層と、
を有し、
前記第3半導体層と前記第4半導体層との間に設けられる別の第4半導体層をさらに有し、
前記第3半導体層と前記別の第4半導体層との間の第1間隔は、前記第4半導体層と前記別の第4半導体層との間の第2間隔よりも狭く
前記第3半導体層は、前記終端領域に設けられる前記第2導電形の半導体層のなかで前記第2半導体層に最も近く、
前記第3半導体層の前記第2層厚は、前記終端領域に設けられる前記第2導電形の半導体層のなかで最も厚い、半導体装置。 - 前記第1方向に直交する第2方向において、前記第2半導体層と前記第3半導体層との間に、前記第1半導体層の一部が設けられる請求項1記載の半導体装置。
- 前記第2半導体層の前記第1層厚は、前記第4半導体層の前記第3層厚と同じである、請求項1または2に記載の半導体装置。
- 前記第2半導体層の前記第1層厚は、前記第4半導体層の前記第3層厚よりも長い、請求項1または2に記載の半導体装置。
- 前記第3半導体層は、前記第2半導体層に直接つながるように設けられる、請求項1記載の半導体装置。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022045873A JP7828204B2 (ja) | 2022-03-22 | 2022-03-22 | 半導体装置 |
| CN202210790718.XA CN116825852A (zh) | 2022-03-22 | 2022-07-05 | 半导体装置 |
| US17/889,971 US20230307493A1 (en) | 2022-03-22 | 2022-08-17 | Semiconductor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022045873A JP7828204B2 (ja) | 2022-03-22 | 2022-03-22 | 半導体装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2023140037A JP2023140037A (ja) | 2023-10-04 |
| JP7828204B2 true JP7828204B2 (ja) | 2026-03-11 |
Family
ID=88096511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2022045873A Active JP7828204B2 (ja) | 2022-03-22 | 2022-03-22 | 半導体装置 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20230307493A1 (ja) |
| JP (1) | JP7828204B2 (ja) |
| CN (1) | CN116825852A (ja) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008010506A (ja) | 2006-06-27 | 2008-01-17 | Matsushita Electric Ind Co Ltd | 半導体装置 |
| JP2008210848A (ja) | 2007-02-23 | 2008-09-11 | Denso Corp | 炭化珪素半導体装置の製造方法 |
| US20130037851A1 (en) | 2011-08-10 | 2013-02-14 | Kabushiki Kaisha Toshiba | Semiconductor device |
| JP2015126193A (ja) | 2013-12-27 | 2015-07-06 | 株式会社豊田中央研究所 | 縦型半導体装置 |
| JP2015153787A (ja) | 2014-02-10 | 2015-08-24 | トヨタ自動車株式会社 | 半導体装置及び半導体装置の製造方法 |
| JP2016092168A (ja) | 2014-11-04 | 2016-05-23 | 三菱電機株式会社 | 炭化珪素半導体装置 |
| JP2016115882A (ja) | 2014-12-17 | 2016-06-23 | トヨタ自動車株式会社 | ショットキーバリアダイオードとその製造方法 |
| JP2018098324A (ja) | 2016-12-12 | 2018-06-21 | 株式会社デンソー | 炭化珪素半導体装置およびその製造方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08167714A (ja) * | 1994-12-14 | 1996-06-25 | Sanyo Electric Co Ltd | 縦型mos半導体装置 |
| EP1222694B1 (de) * | 1999-09-22 | 2005-02-02 | SiCED Electronics Development GmbH & Co KG | SiC-Halbleitervorrichtung mit einem Schottky-Kontakt und Verfahren zu deren Herstellung |
| JP5198030B2 (ja) * | 2007-10-22 | 2013-05-15 | 株式会社東芝 | 半導体素子 |
| US8803277B2 (en) * | 2011-02-10 | 2014-08-12 | Cree, Inc. | Junction termination structures including guard ring extensions and methods of fabricating electronic devices incorporating same |
-
2022
- 2022-03-22 JP JP2022045873A patent/JP7828204B2/ja active Active
- 2022-07-05 CN CN202210790718.XA patent/CN116825852A/zh active Pending
- 2022-08-17 US US17/889,971 patent/US20230307493A1/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008010506A (ja) | 2006-06-27 | 2008-01-17 | Matsushita Electric Ind Co Ltd | 半導体装置 |
| JP2008210848A (ja) | 2007-02-23 | 2008-09-11 | Denso Corp | 炭化珪素半導体装置の製造方法 |
| US20130037851A1 (en) | 2011-08-10 | 2013-02-14 | Kabushiki Kaisha Toshiba | Semiconductor device |
| JP2013038329A (ja) | 2011-08-10 | 2013-02-21 | Toshiba Corp | 半導体装置 |
| JP2015126193A (ja) | 2013-12-27 | 2015-07-06 | 株式会社豊田中央研究所 | 縦型半導体装置 |
| US20170040441A1 (en) | 2013-12-27 | 2017-02-09 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Vertical semiconductor device |
| JP2015153787A (ja) | 2014-02-10 | 2015-08-24 | トヨタ自動車株式会社 | 半導体装置及び半導体装置の製造方法 |
| US20170012122A1 (en) | 2014-02-10 | 2017-01-12 | Toyota Jidosha Kabushiki Kaisha | Semiconductor device and method of manufacturing semiconductor device |
| JP2016092168A (ja) | 2014-11-04 | 2016-05-23 | 三菱電機株式会社 | 炭化珪素半導体装置 |
| JP2016115882A (ja) | 2014-12-17 | 2016-06-23 | トヨタ自動車株式会社 | ショットキーバリアダイオードとその製造方法 |
| US20170278923A1 (en) | 2014-12-17 | 2017-09-28 | Toyota Jidosha Kabushiki Kaisha | Schottky barrier diode and manufacturing method thereof |
| JP2018098324A (ja) | 2016-12-12 | 2018-06-21 | 株式会社デンソー | 炭化珪素半導体装置およびその製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116825852A (zh) | 2023-09-29 |
| US20230307493A1 (en) | 2023-09-28 |
| JP2023140037A (ja) | 2023-10-04 |
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