DE69839511D1 - Übergangsabschluss für sic schottkydiode - Google Patents

Übergangsabschluss für sic schottkydiode

Info

Publication number
DE69839511D1
DE69839511D1 DE69839511T DE69839511T DE69839511D1 DE 69839511 D1 DE69839511 D1 DE 69839511D1 DE 69839511 T DE69839511 T DE 69839511T DE 69839511 T DE69839511 T DE 69839511T DE 69839511 D1 DE69839511 D1 DE 69839511D1
Authority
DE
Germany
Prior art keywords
junction
termination
jte
metal contact
edge
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 - Lifetime
Application number
DE69839511T
Other languages
English (en)
Inventor
Mietek Bakowski
Ulf Gustafsson
Christopher I Harris
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wolfspeed Inc
Original Assignee
Cree Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cree Inc filed Critical Cree Inc
Application granted granted Critical
Publication of DE69839511D1 publication Critical patent/DE69839511D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
    • H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
    • H01L29/0603—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions
    • H01L29/0607—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions for preventing surface leakage or controlling electric field concentration
    • H01L29/0611—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse biased devices
    • H01L29/0615—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse biased devices by the doping profile or the shape or the arrangement of the PN junction, or with supplementary regions, e.g. junction termination extension [JTE]
    • 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
    • H01L29/16—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic Table
    • H01L29/1608—Silicon carbide
    • 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
    • H01L29/66007—Multistep manufacturing processes
    • H01L29/66053—Multistep manufacturing processes of devices having a semiconductor body comprising crystalline silicon carbide
    • H01L29/6606—Multistep manufacturing processes of devices having a semiconductor body comprising crystalline silicon carbide the devices being controllable only by variation of the electric current supplied or the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched, e.g. two-terminal devices
    • 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
    • H01L29/86—Types of semiconductor device ; Multistep manufacturing processes therefor controllable only by variation of the electric current supplied, or only the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched
    • H01L29/861—Diodes
    • H01L29/872—Schottky diodes
    • 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
    • H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
    • H01L29/0657—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions characterised by the shape of the body

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Physics & Mathematics (AREA)
  • Ceramic Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Electrodes Of Semiconductors (AREA)
  • Amplifiers (AREA)
  • Light Receiving Elements (AREA)
DE69839511T 1997-01-21 1998-01-21 Übergangsabschluss für sic schottkydiode Expired - Lifetime DE69839511D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9700156A SE9700156D0 (sv) 1997-01-21 1997-01-21 Junction termination for Si C Schottky diode
PCT/SE1998/000082 WO1998032178A1 (en) 1997-01-21 1998-01-21 JUNCTION TERMINATION FOR SiC SCHOTTKY DIODE

Publications (1)

Publication Number Publication Date
DE69839511D1 true DE69839511D1 (de) 2008-07-03

Family

ID=20405472

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69839511T Expired - Lifetime DE69839511D1 (de) 1997-01-21 1998-01-21 Übergangsabschluss für sic schottkydiode

Country Status (7)

Country Link
US (1) US5914500A (de)
EP (1) EP0965146B1 (de)
JP (1) JP5067985B2 (de)
AT (1) ATE396502T1 (de)
DE (1) DE69839511D1 (de)
SE (1) SE9700156D0 (de)
WO (1) WO1998032178A1 (de)

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US6242784B1 (en) * 1999-06-28 2001-06-05 Intersil Corporation Edge termination for silicon power devices
US6373076B1 (en) 1999-12-07 2002-04-16 Philips Electronics North America Corporation Passivated silicon carbide devices with low leakage current and method of fabricating
FR2803103B1 (fr) * 1999-12-24 2003-08-29 St Microelectronics Sa Diode schottky sur substrat de carbure de silicium
US6717229B2 (en) 2000-01-19 2004-04-06 Fabtech, Inc. Distributed reverse surge guard
US6642558B1 (en) * 2000-03-20 2003-11-04 Koninklijke Philips Electronics N.V. Method and apparatus of terminating a high voltage solid state device
SE0001860D0 (sv) * 2000-05-22 2000-05-22 Abb Ab A semiconductor device
US6362112B1 (en) 2000-11-08 2002-03-26 Fabtech, Inc. Single step etched moat
US6573128B1 (en) 2000-11-28 2003-06-03 Cree, Inc. Epitaxial edge termination for silicon carbide Schottky devices and methods of fabricating silicon carbide devices incorporating same
US6462393B2 (en) 2001-03-20 2002-10-08 Fabtech, Inc. Schottky device
JP4942255B2 (ja) * 2001-05-08 2012-05-30 三菱電機株式会社 炭化珪素半導体装置およびその製造方法
FR2832547A1 (fr) * 2001-11-21 2003-05-23 St Microelectronics Sa Procede de realisation d'une diode schottky sur substrat de carbure de silicium
US6734462B1 (en) 2001-12-07 2004-05-11 The United States Of America As Represented By The Secretary Of The Army Silicon carbide power devices having increased voltage blocking capabilities
CA2381128A1 (en) * 2002-04-09 2003-10-09 Quantiscript Inc. Plasma polymerized electron beam resist
US7026650B2 (en) 2003-01-15 2006-04-11 Cree, Inc. Multiple floating guard ring edge termination for silicon carbide devices
US9515135B2 (en) * 2003-01-15 2016-12-06 Cree, Inc. Edge termination structures for silicon carbide devices
US20050259368A1 (en) * 2003-11-12 2005-11-24 Ted Letavic Method and apparatus of terminating a high voltage solid state device
US7407837B2 (en) * 2004-01-27 2008-08-05 Fuji Electric Holdings Co., Ltd. Method of manufacturing silicon carbide semiconductor device
US20060006394A1 (en) * 2004-05-28 2006-01-12 Caracal, Inc. Silicon carbide Schottky diodes and fabrication method
US7812441B2 (en) 2004-10-21 2010-10-12 Siliconix Technology C.V. Schottky diode with improved surge capability
US7394158B2 (en) * 2004-10-21 2008-07-01 Siliconix Technology C.V. Solderable top metal for SiC device
US7304363B1 (en) 2004-11-26 2007-12-04 United States Of America As Represented By The Secretary Of The Army Interacting current spreader and junction extender to increase the voltage blocked in the off state of a high power semiconductor device
JP4186919B2 (ja) * 2004-12-07 2008-11-26 三菱電機株式会社 半導体装置
US9419092B2 (en) * 2005-03-04 2016-08-16 Vishay-Siliconix Termination for SiC trench devices
US7834376B2 (en) 2005-03-04 2010-11-16 Siliconix Technology C. V. Power semiconductor switch
JP4944460B2 (ja) * 2005-03-30 2012-05-30 オンセミコンダクター・トレーディング・リミテッド 半導体装置
US8901699B2 (en) 2005-05-11 2014-12-02 Cree, Inc. Silicon carbide junction barrier Schottky diodes with suppressed minority carrier injection
US7768092B2 (en) * 2005-07-20 2010-08-03 Cree Sweden Ab Semiconductor device comprising a junction having a plurality of rings
JP4889645B2 (ja) * 2005-09-08 2012-03-07 三菱電機株式会社 半導体装置の製造方法
JP5068009B2 (ja) * 2005-09-14 2012-11-07 三菱電機株式会社 炭化ケイ素半導体装置
US8368165B2 (en) 2005-10-20 2013-02-05 Siliconix Technology C. V. Silicon carbide Schottky diode
US7541660B2 (en) * 2006-04-20 2009-06-02 Infineon Technologies Austria Ag Power semiconductor device
US8192905B2 (en) * 2006-04-20 2012-06-05 Ricoh Company, Ltd. Electrophotographic photoconductor, image forming apparatus, and process cartridge
EP2047514A4 (de) * 2006-07-31 2010-12-01 Vishay Siliconix MOLYBDÄNSPERRMETALL FÜR SiC-SCHOTTKYDIODE UND HERSTELLUNGSVERFAHREN
US8432012B2 (en) 2006-08-01 2013-04-30 Cree, Inc. Semiconductor devices including schottky diodes having overlapping doped regions and methods of fabricating same
US7728402B2 (en) * 2006-08-01 2010-06-01 Cree, Inc. Semiconductor devices including schottky diodes with controlled breakdown
US20080036048A1 (en) * 2006-08-10 2008-02-14 Vishay General Semiconductor Llc Semiconductor junction device having reduced leakage current and method of forming same
JP5645404B2 (ja) 2006-08-17 2014-12-24 クリー インコーポレイテッドＣｒｅｅ Ｉｎｃ． 高電力絶縁ゲート・バイポーラ・トランジスタ
US8835987B2 (en) 2007-02-27 2014-09-16 Cree, Inc. Insulated gate bipolar transistors including current suppressing layers
JP5372002B2 (ja) * 2007-11-09 2013-12-18 クリー インコーポレイテッド メサ構造とメサ段差を含むバッファ層とを備えた電力半導体デバイス
US9640609B2 (en) * 2008-02-26 2017-05-02 Cree, Inc. Double guard ring edge termination for silicon carbide devices
US8304901B2 (en) * 2008-03-17 2012-11-06 Mitsubishi Electric Corporation Semiconductor device having a groove and a junction termination extension layer surrounding a guard ring layer
US8232558B2 (en) 2008-05-21 2012-07-31 Cree, Inc. Junction barrier Schottky diodes with current surge capability
JP2008252143A (ja) * 2008-07-17 2008-10-16 Mitsubishi Electric Corp 半導体装置
US8097919B2 (en) 2008-08-11 2012-01-17 Cree, Inc. Mesa termination structures for power semiconductor devices including mesa step buffers
US8497552B2 (en) 2008-12-01 2013-07-30 Cree, Inc. Semiconductor devices with current shifting regions and related methods
US8106487B2 (en) 2008-12-23 2012-01-31 Pratt & Whitney Rocketdyne, Inc. Semiconductor device having an inorganic coating layer applied over a junction termination extension
US8294507B2 (en) 2009-05-08 2012-10-23 Cree, Inc. Wide bandgap bipolar turn-off thyristor having non-negative temperature coefficient and related control circuits
US8637386B2 (en) * 2009-05-12 2014-01-28 Cree, Inc. Diffused junction termination structures for silicon carbide devices and methods of fabricating silicon carbide devices incorporating same
US8629509B2 (en) 2009-06-02 2014-01-14 Cree, Inc. High voltage insulated gate bipolar transistors with minority carrier diverter
US8193848B2 (en) 2009-06-02 2012-06-05 Cree, Inc. Power switching devices having controllable surge current capabilities
US8541787B2 (en) * 2009-07-15 2013-09-24 Cree, Inc. High breakdown voltage wide band-gap MOS-gated bipolar junction transistors with avalanche capability
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US8415671B2 (en) 2010-04-16 2013-04-09 Cree, Inc. Wide band-gap MOSFETs having a heterojunction under gate trenches thereof and related methods of forming such devices
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JP2011135094A (ja) * 2011-02-25 2011-07-07 Sumitomo Electric Ind Ltd 半導体装置およびその製造方法
JP6050563B2 (ja) * 2011-02-25 2016-12-21 富士通株式会社 化合物半導体装置及びその製造方法
US9318623B2 (en) 2011-04-05 2016-04-19 Cree, Inc. Recessed termination structures and methods of fabricating electronic devices including recessed termination structures
US9153443B2 (en) 2011-04-05 2015-10-06 Mitsubishi Electric Corporation Semiconductor device and method of fabricating same
US9673283B2 (en) 2011-05-06 2017-06-06 Cree, Inc. Power module for supporting high current densities
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JP6384944B2 (ja) 2012-05-31 2018-09-05 富士電機株式会社 炭化珪素半導体装置および炭化珪素半導体装置の製造方法
CN105051902A (zh) * 2013-03-27 2015-11-11 丰田自动车株式会社 纵型半导体装置
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US9960247B2 (en) * 2016-01-19 2018-05-01 Ruigang Li Schottky barrier structure for silicon carbide (SiC) power devices
JP6756125B2 (ja) 2016-03-16 2020-09-16 富士電機株式会社 半導体装置および半導体装置の製造方法
KR102392244B1 (ko) 2016-12-15 2022-04-29 그리피스 유니버시티 실리콘 카바이드 쇼트키 다이오드
CN107482050B (zh) * 2017-08-18 2020-02-07 珠海格力电器股份有限公司 一种功率器件的终端结构及其制造方法
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WO2022009328A1 (ja) * 2020-07-08 2022-01-13 三菱電機株式会社 半導体装置及び半導体装置の製造方法
CN112038416B (zh) * 2020-09-15 2021-09-03 西安电子科技大学 基于p型NiO薄膜和斜面终端结构的肖特基二极管及其制作方法
RU206535U1 (ru) * 2021-03-10 2021-09-15 Акционерное общество "ГРУППА КРЕМНИЙ ЭЛ" Тестовая ячейка для контроля качества изготовления диодов шоттки на карбиде кремния
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Also Published As

Publication number Publication date
SE9700156D0 (sv) 1997-01-21
JP2001508950A (ja) 2001-07-03
JP5067985B2 (ja) 2012-11-07
ATE396502T1 (de) 2008-06-15
WO1998032178A1 (en) 1998-07-23
EP0965146B1 (de) 2008-05-21
EP0965146A1 (de) 1999-12-22
US5914500A (en) 1999-06-22

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