JP5439215B2 - 半導体装置および半導体装置の製造方法 - Google Patents
半導体装置および半導体装置の製造方法 Download PDFInfo
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- H10D30/028—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs
- H10D30/0291—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs of vertical DMOS [VDMOS] FETs
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- 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
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- 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
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- H10P30/20—Ion implantation into wafers, substrates or parts of devices into semiconductor materials, e.g. for doping
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- H10P30/204—Ion implantation into wafers, substrates or parts of devices into semiconductor materials, e.g. for doping characterised by the semiconductor materials into Group IV semiconductors
- H10P30/2042—Ion implantation into wafers, substrates or parts of devices into semiconductor materials, e.g. for doping characterised by the semiconductor materials into Group IV semiconductors into crystalline silicon carbide
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- H10P30/21—Ion implantation into wafers, substrates or parts of devices into semiconductor materials, e.g. for doping of electrically active species
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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D12/00—Bipolar devices controlled by the field effect, e.g. insulated-gate bipolar transistors [IGBT]
- H10D12/01—Manufacture or treatment
- H10D12/031—Manufacture or treatment of IGBTs
- H10D12/032—Manufacture or treatment of IGBTs of vertical IGBTs
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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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Description
図1は、第1の実施形態に係る半導体装置の断面を示す模式図である。本実施形態では、N型SiC層に形成された、電力制御用のダイオード1を例として説明する。
図4は、第2の実施形態に係る半導体装置の断面を示す模式図である。本実施形態では、N型SiC層3に形成されたパワーMOSFET20を例として説明する。また、図4は、パワーMOSFET20のユニットセルの断面を模式的に示している。
図9は、第3の実施形態に係る半導体装置の断面を示す模式図である。本実施形態に係るパワーMOSFET30は、P型SiC層53に形成されたPMOS構造を有する点で、第2の実施形態に係るパワーMOSFET20と異なる。なお、本実施形態では、第1導電型をP型、第2導電型をN型として説明する。
図10は、第4の実施形態に係る半導体装置の断面を示す模式図である。本実施形態に係る半導体装置は、SiCを材料とするIGBT40(Insulated Gate Bipolar Transistor)である。
2 N型SiC基板
3 N型SiC層
5 再結晶領域
6、17、58 P型導電層
7 動作領域
10、50 SiCウェーハ
11 P型ベース領域
12 N型ソース領域
13 P型コンタクト領域
14 ゲート酸化膜
16、57 N型導電層
18 ゲート電極
19 ドレイン電極
23 ソース配線
24 ゲート配線
36 ポリシリコン層
37 ダメージ領域
53 P型SiC層
54 N型ベース領域
55 P型ソース領域
56 N型コンタクト領域
Claims (3)
- 六方晶構造を有する第1導電型のSiC層と、
前記SiC層の表面に設けられた第2導電型の第1半導体領域と、
前記第1半導体領域の表面に選択的に設けられた第1導電型の第2半導体領域と、
前記第2半導体領域に隣接して、前記第1半導体領域の表面に選択的に設けられた第2導電型の第3半導体領域と、
前記第2半導体領域に接する第1導電型の第1導電層と、
前記第3半導体領域に接する第2導電型の第2導電層と、
を備え、
前記第2半導体領域および前記第3半導体領域のうちのP型の導電型を有する領域は、前記第1または第2導電層に接する部分に立方晶構造のSiCを含む半導体装置。 - 前記第2半導体領域および前記第3半導体領域のうちのP型の導電型を有する前記領域に接する前記第1または第2導電層は、P型不純物がドープされたポリシリコン層である請求項1記載の半導体装置。
- 六方晶構造を有するSiC層の表面に設けられたP型SiC領域の上に導電層を設ける工程と、
前記P型SiC領域と前記導電層とにP型不純物をイオン注入し、前記P型SiC領域のうちの前記導電層に接する部分に注入ダメージを形成する工程と、
前記P型SiC領域と前記導電層とを熱処理して、前記導電層に注入された前記P型不純物を活性化し、前記P型SiC領域のうちの前記導電層に接する部分に立方晶構造のSiCを形成する工程と、
を備える半導体装置の製造方法。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010027121A JP5439215B2 (ja) | 2010-02-10 | 2010-02-10 | 半導体装置および半導体装置の製造方法 |
| US13/021,400 US8558244B2 (en) | 2010-02-10 | 2011-02-04 | Semiconductor device and method for manufacturing semiconductor device |
| US14/023,177 US8916881B2 (en) | 2010-02-10 | 2013-09-10 | Semiconductor device and method for manufacturing semiconductor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010027121A JP5439215B2 (ja) | 2010-02-10 | 2010-02-10 | 半導体装置および半導体装置の製造方法 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013227384A Division JP5524403B2 (ja) | 2013-10-31 | 2013-10-31 | 半導体装置 |
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| Publication Number | Publication Date |
|---|---|
| JP2011165902A JP2011165902A (ja) | 2011-08-25 |
| JP5439215B2 true JP5439215B2 (ja) | 2014-03-12 |
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| JP2010027121A Expired - Fee Related JP5439215B2 (ja) | 2010-02-10 | 2010-02-10 | 半導体装置および半導体装置の製造方法 |
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| Country | Link |
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| US (2) | US8558244B2 (ja) |
| JP (1) | JP5439215B2 (ja) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5777455B2 (ja) | 2011-09-08 | 2015-09-09 | 株式会社東芝 | 半導体装置および半導体装置の製造方法 |
| JP5717674B2 (ja) * | 2012-03-02 | 2015-05-13 | 株式会社東芝 | 半導体装置の製造方法 |
| JP6253133B2 (ja) * | 2012-04-27 | 2017-12-27 | 富士電機株式会社 | 炭化珪素半導体装置の製造方法 |
| JP6415015B2 (ja) * | 2012-11-09 | 2018-10-31 | 富士電機株式会社 | 炭化珪素mos型半導体装置の製造方法 |
| JP6148070B2 (ja) * | 2013-05-27 | 2017-06-14 | ルネサスエレクトロニクス株式会社 | 縦チャネル型ジャンクションSiCパワーFETおよびその製造方法 |
| JP6183200B2 (ja) * | 2013-12-16 | 2017-08-23 | 住友電気工業株式会社 | 炭化珪素半導体装置およびその製造方法 |
| JP2016081981A (ja) * | 2014-10-14 | 2016-05-16 | 株式会社日立製作所 | 半導体装置及びその製造方法 |
| KR102258644B1 (ko) | 2014-12-26 | 2021-05-28 | 페어차일드 세미컨덕터 코포레이션 | 개선된 게이트 유전 차폐를 갖는 실리콘 카바이드(SiC) 소자 |
| JP6478884B2 (ja) | 2015-09-11 | 2019-03-06 | 株式会社東芝 | 半導体装置 |
| CN106571385A (zh) * | 2015-10-12 | 2017-04-19 | 南京励盛半导体科技有限公司 | 一种金属碳化硅接触的结构 |
| US10552934B2 (en) * | 2016-07-01 | 2020-02-04 | Intel Corporation | Reducing memory latency in graphics operations |
| JP6728096B2 (ja) * | 2017-04-24 | 2020-07-22 | 株式会社東芝 | 半導体装置、半導体装置の製造方法、インバータ回路、駆動装置、車両、及び、昇降機 |
| DE102022114411A1 (de) * | 2021-07-21 | 2023-01-26 | Infineon Technologies Ag | Verfahren zur herstellung von ohmschen kontakten auf einem siliciumcarbid(sic)-substrat, verfahren zur herstellung einer halbleitervorrichtung, und halbleitervorrichtung |
| CN116314252B (zh) * | 2022-11-23 | 2023-11-07 | 苏州龙驰半导体科技有限公司 | Vdmos器件及提升sic vdmos器件的击穿电压的方法 |
| CN120457789A (zh) * | 2023-07-24 | 2025-08-08 | 富士电机株式会社 | 碳化硅半导体装置及其制造方法 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6573534B1 (en) * | 1995-09-06 | 2003-06-03 | Denso Corporation | Silicon carbide semiconductor device |
| JP3361061B2 (ja) | 1998-09-17 | 2003-01-07 | 株式会社東芝 | 半導体装置 |
| JP4545975B2 (ja) * | 2001-03-27 | 2010-09-15 | 日本特殊陶業株式会社 | 炭化珪素半導体用電極の製造方法、及び炭化珪素半導体用電極を備える炭化珪素半導体素子の製造方法 |
| JP3970142B2 (ja) * | 2002-09-20 | 2007-09-05 | 新電元工業株式会社 | 炭化けい素のオーミック電極構造および半導体装置 |
| JP4029731B2 (ja) * | 2003-01-17 | 2008-01-09 | トヨタ自動車株式会社 | 半導体装置の製造方法 |
| US7074643B2 (en) * | 2003-04-24 | 2006-07-11 | Cree, Inc. | Silicon carbide power devices with self-aligned source and well regions and methods of fabricating same |
| DE102005017814B4 (de) * | 2004-04-19 | 2016-08-11 | Denso Corporation | Siliziumkarbid-Halbleiterbauelement und Verfahren zu dessen Herstellung |
| JP2006179662A (ja) * | 2004-12-22 | 2006-07-06 | Nissan Motor Co Ltd | 半導体装置の製造方法 |
| JP4620564B2 (ja) * | 2005-10-03 | 2011-01-26 | 三菱電機株式会社 | 半導体装置 |
| JP5560519B2 (ja) * | 2006-04-11 | 2014-07-30 | 日産自動車株式会社 | 半導体装置及びその製造方法 |
| US20080203399A1 (en) * | 2006-09-18 | 2008-08-28 | Spencer Michael G | Polarization doped transistor channels in sic heteropolytypes |
| JP2008091595A (ja) * | 2006-10-02 | 2008-04-17 | Eudyna Devices Inc | 半導体装置およびその製造方法 |
| JP5233173B2 (ja) * | 2007-06-08 | 2013-07-10 | 日産自動車株式会社 | 半導体装置の製造方法 |
| JP5339698B2 (ja) | 2007-08-20 | 2013-11-13 | 新日本無線株式会社 | 半導体装置の製造方法 |
| JP4532536B2 (ja) * | 2007-12-19 | 2010-08-25 | トヨタ自動車株式会社 | 半導体装置 |
-
2010
- 2010-02-10 JP JP2010027121A patent/JP5439215B2/ja not_active Expired - Fee Related
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2011
- 2011-02-04 US US13/021,400 patent/US8558244B2/en not_active Expired - Fee Related
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2013
- 2013-09-10 US US14/023,177 patent/US8916881B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011165902A (ja) | 2011-08-25 |
| US20140014971A1 (en) | 2014-01-16 |
| US8558244B2 (en) | 2013-10-15 |
| US20110193101A1 (en) | 2011-08-11 |
| US8916881B2 (en) | 2014-12-23 |
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