KR101416361B1 - 쇼트키 배리어 다이오드 및 그 제조 방법 - Google Patents
쇼트키 배리어 다이오드 및 그 제조 방법 Download PDFInfo
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- KR101416361B1 KR101416361B1 KR1020120101967A KR20120101967A KR101416361B1 KR 101416361 B1 KR101416361 B1 KR 101416361B1 KR 1020120101967 A KR1020120101967 A KR 1020120101967A KR 20120101967 A KR20120101967 A KR 20120101967A KR 101416361 B1 KR101416361 B1 KR 101416361B1
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- 238000000034 method Methods 0.000 title claims description 4
- 230000004888 barrier function Effects 0.000 title abstract description 15
- 238000004519 manufacturing process Methods 0.000 title description 6
- 239000002184 metal Substances 0.000 claims abstract description 17
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 150000002500 ions Chemical class 0.000 claims description 7
- 239000004065 semiconductor Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910003465 moissanite Inorganic materials 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
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- H—ELECTRICITY
- 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
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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
- H10D62/10—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
- H10D62/107—Buried supplementary regions, e.g. buried guard rings
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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
- H10D62/83—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
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- 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
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- 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
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
도 2은 도 1의 n-형 에피층의 평면도 이다.
도 3은 도 1의 n형 에피층의 평면도 이다.
도 4 내지 도 7은 본 발명의 실시예에 따른 쇼트키 배리어 다이오드의 제조 방법을 순서대로 도시한 도면이다.
210: 제1 p+ 영역 300: n형 에피층
310: 제2 p+ 영역 400: 쇼트키 금속
500: 오믹 금속
Claims (6)
- n+형 탄화 규소 기판의 제1면에 위치하는 n-형 에피층,
상기 n-형 에피층 내에 위치하는 제1 p+ 영역,
상기 n-형 에피층 및 상기 제1 p+ 영역 위에 위치하는 n형 에피층,
상기 n형 에피층 내에 위치하는 제2 p+ 영역,
상기 n형 에피층 및 상기 제2 p+ 영역 위에 위치하는 쇼트키 금속, 그리고
상기 n+형 탄화 규소 기판의 제2면에 위치하는 오믹 금속을 포함하고,
상기 제1 p+ 영역과 상기 제2 p+ 영역은 서로 접촉되어 있고,
상기 제2 p+ 영역은 상기 n형 에피층의 가장자리를 둘러싸는 사각 형상으로 형성되어 있고,
상기 쇼트키 금속은 상기 n형 에피층 및 상기 제2 p+ 영역과 접촉되어 있는 쇼트키 배리어 다이오드. - 제1항에서,
상기 제1 p+ 영역은 상기 n-형 에피층의 표면에 격자 형상으로 형성되어 있는 쇼트키 배리어 다이오드. - 삭제
- n+형 탄화 규소 기판의 제1면에 n-형 에피층을 형성하는 단계,
상기 n-형 에피층의 표면에 p+ 이온을 주입하여 제1 p+ 영역을 형성하는 단계,
상기 n-형 에피층 및 상기 제1 p+ 영역 위에 n형 에피층을 형성하는 단계,
상기 n형 에피층의 표면에 n+ 이온을 주입하여 제2 p+ 영역을 형성하는 단계,
상기 n형 에피층 및 상기 제2 p+ 영역 위에 쇼트키 금속을 형성하는 단계, 그리고
상기 n+형 탄화 규소 기판의 제2면에 오믹 금속을 형성하는 단계를 포함하고,
상기 제1 p+ 영역과 상기 제2 p+ 영역은 서로 접촉하고,
상기 제2 p+ 영역은 상기 n형 에피층의 가장자리를 둘러싸는 사각 형상으로 형성되고,
상기 쇼트키 금속은 상기 n형 에피층 및 상기 제2 p+ 영역과 접촉되는 쇼트키 배리어 다이오드의 제조 방법. - 제4항에서,
상기 제1 p+ 영역은 상기 n-형 에피층의 표면에 격자 형상으로 형성되는 쇼트키 배리어 다이오드의 제조 방법. - 삭제
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120101967A KR101416361B1 (ko) | 2012-09-14 | 2012-09-14 | 쇼트키 배리어 다이오드 및 그 제조 방법 |
JP2012262830A JP2014060376A (ja) | 2012-09-14 | 2012-11-30 | ショットキーバリアダイオードおよびその製造方法 |
US13/710,119 US9099378B2 (en) | 2012-09-14 | 2012-12-10 | Schottky barrier diode and method of manufacturing the same |
DE102012113027.2A DE102012113027A1 (de) | 2012-09-14 | 2012-12-21 | Schottky-Diode und Verfahren zum Herstellen derselben |
CN201210570518.XA CN103681883A (zh) | 2012-09-14 | 2012-12-25 | 肖特基垫垒二极管及其制造方法 |
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KR1020120101967A KR101416361B1 (ko) | 2012-09-14 | 2012-09-14 | 쇼트키 배리어 다이오드 및 그 제조 방법 |
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KR20140035594A KR20140035594A (ko) | 2014-03-24 |
KR101416361B1 true KR101416361B1 (ko) | 2014-08-06 |
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KR1020120101967A KR101416361B1 (ko) | 2012-09-14 | 2012-09-14 | 쇼트키 배리어 다이오드 및 그 제조 방법 |
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Country | Link |
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US (1) | US9099378B2 (ko) |
JP (1) | JP2014060376A (ko) |
KR (1) | KR101416361B1 (ko) |
CN (1) | CN103681883A (ko) |
DE (1) | DE102012113027A1 (ko) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101360070B1 (ko) * | 2012-12-27 | 2014-02-12 | 현대자동차 주식회사 | 반도체 소자 및 그 제조 방법 |
KR20140085141A (ko) * | 2012-12-27 | 2014-07-07 | 현대자동차주식회사 | 반도체 소자 및 그 제조 방법 |
KR101518905B1 (ko) | 2013-12-30 | 2015-05-11 | 현대자동차 주식회사 | 쇼트키 배리어 다이오드 및 그 제조 방법 |
CN104576762B (zh) * | 2014-12-25 | 2018-08-28 | 株洲南车时代电气股份有限公司 | 肖特基势垒二极管及其制造方法 |
JP7098906B2 (ja) * | 2017-10-11 | 2022-07-12 | 株式会社デンソー | ショットキーバリアダイオードを備えた炭化珪素半導体装置およびその製造方法 |
CN112701150A (zh) * | 2019-10-23 | 2021-04-23 | 世界先进积体电路股份有限公司 | 半导体结构 |
US20210343837A1 (en) * | 2020-05-01 | 2021-11-04 | Vanguard International Semiconductor Corporation | Semiconductor structures |
CN113937168A (zh) * | 2020-07-13 | 2022-01-14 | 珠海格力电器股份有限公司 | 碳化硅结势垒肖特基半导体器件及其制造方法 |
CN112687750B (zh) * | 2020-12-10 | 2022-03-18 | 复旦大学 | 一种半浮空结构的SiC SBD器件及其制备方法 |
CN113130625B (zh) * | 2021-03-26 | 2021-11-12 | 先之科半导体科技(东莞)有限公司 | 一种高压快速的碳化硅二极管及其制备方法 |
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JPH07226521A (ja) * | 1994-02-10 | 1995-08-22 | Shindengen Electric Mfg Co Ltd | 整流用半導体装置 |
JP2002314099A (ja) * | 2001-04-09 | 2002-10-25 | Denso Corp | ショットキーダイオード及びその製造方法 |
JP2005229071A (ja) * | 2004-02-16 | 2005-08-25 | Matsushita Electric Ind Co Ltd | ショットキーバリアダイオード |
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GB1558506A (en) * | 1976-08-09 | 1980-01-03 | Mullard Ltd | Semiconductor devices having a rectifying metalto-semicondductor junction |
JP3297087B2 (ja) | 1992-09-25 | 2002-07-02 | 株式会社東芝 | 高耐圧半導体装置 |
JPH11330498A (ja) * | 1998-05-07 | 1999-11-30 | Fuji Electric Co Ltd | ショットキーバリアダイオードおよびその製造方法 |
US8901699B2 (en) * | 2005-05-11 | 2014-12-02 | Cree, Inc. | Silicon carbide junction barrier Schottky diodes with suppressed minority carrier injection |
JP4396724B2 (ja) | 2007-04-18 | 2010-01-13 | 株式会社デンソー | ショットキーバリアダイオードを備えた炭化珪素半導体装置 |
JP4375439B2 (ja) | 2007-05-30 | 2009-12-02 | 株式会社デンソー | ジャンクションバリアショットキーダイオードを備えた炭化珪素半導体装置 |
JP2009158519A (ja) * | 2007-12-25 | 2009-07-16 | Toyota Motor Corp | 半導体装置及びその製造方法 |
KR101374312B1 (ko) | 2011-10-21 | 2014-03-14 | 주식회사 지2터치 | 전압변동을 이용한 정전식 터치 검출수단, 검출방법 및 터치스크린패널과, 그러한 정전식 터치스크린패널을 내장한 표시장치 |
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- 2012-09-14 KR KR1020120101967A patent/KR101416361B1/ko active IP Right Grant
- 2012-11-30 JP JP2012262830A patent/JP2014060376A/ja active Pending
- 2012-12-10 US US13/710,119 patent/US9099378B2/en active Active
- 2012-12-21 DE DE102012113027.2A patent/DE102012113027A1/de not_active Ceased
- 2012-12-25 CN CN201210570518.XA patent/CN103681883A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH07226521A (ja) * | 1994-02-10 | 1995-08-22 | Shindengen Electric Mfg Co Ltd | 整流用半導体装置 |
JP2002314099A (ja) * | 2001-04-09 | 2002-10-25 | Denso Corp | ショットキーダイオード及びその製造方法 |
JP2005229071A (ja) * | 2004-02-16 | 2005-08-25 | Matsushita Electric Ind Co Ltd | ショットキーバリアダイオード |
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Publication number | Publication date |
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KR20140035594A (ko) | 2014-03-24 |
US20140077225A1 (en) | 2014-03-20 |
JP2014060376A (ja) | 2014-04-03 |
DE102012113027A1 (de) | 2014-03-20 |
US9099378B2 (en) | 2015-08-04 |
CN103681883A (zh) | 2014-03-26 |
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