KR100212203B1 - 쇼트키 장벽 다이오드 - Google Patents
쇼트키 장벽 다이오드 Download PDFInfo
- Publication number
- KR100212203B1 KR100212203B1 KR1019950040795A KR19950040795A KR100212203B1 KR 100212203 B1 KR100212203 B1 KR 100212203B1 KR 1019950040795 A KR1019950040795 A KR 1019950040795A KR 19950040795 A KR19950040795 A KR 19950040795A KR 100212203 B1 KR100212203 B1 KR 100212203B1
- Authority
- KR
- South Korea
- Prior art keywords
- layer
- insulating layer
- inclined side
- barrier diode
- electric field
- Prior art date
Links
- 230000004888 barrier function Effects 0.000 title claims abstract description 20
- 230000005684 electric field Effects 0.000 claims abstract description 37
- 239000000758 substrate Substances 0.000 claims abstract description 29
- 239000004065 semiconductor Substances 0.000 claims abstract description 14
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 4
- 230000035939 shock Effects 0.000 claims 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 17
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 150000004767 nitrides Chemical class 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
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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
- H10D62/104—Constructional design considerations for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse-biased devices having particular shapes of the bodies at or near reverse-biased junctions, e.g. having bevels or moats
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/111—Field plates
- H10D64/117—Recessed field plates, e.g. trench field plates or buried field plates
-
- 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
Landscapes
- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims (8)
- 쇼크기 장벽 다이오드에 있어서; n+층과 n-층으로 구성되어 있으며, 상기 n-층은 상기 n+층 위에 형성되어 있고, 또한 정상부(top portion), 저면부(bottom portion)및 이 정상부와 저면부 사이에 있는 경사측면부(slant side portion)를 갖는 메사(mesa)형으로 형성되며, 상기 경사측면부는 상기 저면부에 대하여 10내지 90의 경사도를 갖는 화합물 반도체 기판(compound semiconductor substrate); 전기한 경사측면부의 적어도 일부에 형성된 절연층; 전기한 정상부와 절연층 위에 형성되고 쇼트키 금속층으로 이루어진 애노드 전극; 및 전기한 n+층에 형성된 캐소트 전극을 포함함을 특징으로 하는 쇼트키 장벽 다이오드.
- n+층과 n-층으로 구성된 화합물 반도체 기판, n-층 위의 절연층, n-층과 절연층에 형성된 쇼트키 금속층의 애노드 전극 및 n+층에 형성된 캐소드 전극을 포함한 쇼트키 장벽 다이오드의 역내전압을 향상시키는 방법으로서, 전기한 n-층을 정상부(top portion), 저면부(bottom portion) 및 이 정상부와 저면부 사이에 있는 경사측면부(slant side portion)를 갖고 있고, 상기 경사측면부는 상기 저면부에 대하여 10내지 90의 경사도를 갖는 메사형으로 형성하는 단계; 및 전기한 경사측면부 상면의 적어도 일부에 절연층을 형성시키는 단계를 포함하며, 절연층의 모서리부에서의 전계집중이 상기 경사측면부에 있는 애노드 전극에서 발생되는 전계에 의해 적어도 일부분이 상쇄되어 쇼트키 장벽 다이오드의 역내 전압을 향상시킴을 특징으로 하는 쇼트키 장벽 다이오드의 역내전압을 향상시키는 방법.
- 제2항에 있어서, 전기한 절연층에 메사형의 경사측면부를 완전히 뒤덮고 있음을 특징으로 하는 방법.
- 제3항에 있어서, 전기한 절연층이 전기한 정상부 쪽으로 연장되어 정상주변부의 상면에 형성되어 있음을 특징으로 하는 방법.
- 제4항에 있어서, 전기한 절연층이 전기한 정상부의 상면에 약 3이하로 연장되어 있음을 특징으로 하는 방법.
- 제1항에 있어서, 전기한 절연층이 메사형의 경사측면부를 완전히 뒤덮고 있음을 특징으로 하는 쇼트키 장벽 다이오드.
- 제1항에 있어서, 전기한 절연층이 전기한 정상부 쪽으로 연장되어 정상주변부 위에 형성되어 있음을 특징으로 하는 쇼트키 장벽 다이오드.
- 제1항에 있어서, 전기한 절연층이 전기한 정상부 위에 약 3이하로 연장되어 있음을 특징으로 하는 쇼트키 장벽 다이오드.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6278035A JPH08139341A (ja) | 1994-11-11 | 1994-11-11 | ショットキ−バリアダイオ−ド |
JP94-278035 | 1994-11-11 | ||
JP1994-278035 | 1994-11-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960019807A KR960019807A (ko) | 1996-06-17 |
KR100212203B1 true KR100212203B1 (ko) | 1999-08-02 |
Family
ID=17591746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950040795A KR100212203B1 (ko) | 1994-11-11 | 1995-11-10 | 쇼트키 장벽 다이오드 |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0712167A3 (ko) |
JP (1) | JPH08139341A (ko) |
KR (1) | KR100212203B1 (ko) |
FI (1) | FI955395L (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101072992B1 (ko) | 2004-12-30 | 2011-10-12 | 매그나칩 반도체 유한회사 | 쇼트키 다이오드 및 그 형성 방법 |
US9236500B2 (en) | 2013-09-10 | 2016-01-12 | Hyundai Motor Company | Schottky barrier diode and method for manufacturing schottky barrier diode |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0964381A (ja) * | 1995-08-25 | 1997-03-07 | Murata Mfg Co Ltd | ショットキーバリアダイオード |
CA2652948A1 (en) * | 2007-03-26 | 2008-10-02 | Sumitomo Electric Industries, Ltd. | Schottky barrier diode and method of producing the same |
JP2009194225A (ja) * | 2008-02-15 | 2009-08-27 | Sumitomo Electric Ind Ltd | ショットキバリアダイオード、及びショットキバリアダイオードを作製する方法 |
KR102099438B1 (ko) * | 2013-10-07 | 2020-04-09 | 엘지이노텍 주식회사 | 반도체 소자 |
JP6260553B2 (ja) | 2015-02-27 | 2018-01-17 | 豊田合成株式会社 | 半導体装置およびその製造方法 |
JP6344264B2 (ja) * | 2015-02-27 | 2018-06-20 | 豊田合成株式会社 | 半導体装置およびその製造方法 |
JP2017139289A (ja) * | 2016-02-02 | 2017-08-10 | トヨタ自動車株式会社 | ダイオード |
JP2018037585A (ja) | 2016-09-02 | 2018-03-08 | 豊田合成株式会社 | 半導体装置およびその製造方法 |
CN111129165B (zh) * | 2019-12-05 | 2023-11-28 | 中国电子科技集团公司第十三研究所 | 肖特基二极管及其制备方法 |
CN111129164B (zh) * | 2019-12-05 | 2023-09-26 | 中国电子科技集团公司第十三研究所 | 肖特基二极管及其制备方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55128879A (en) * | 1979-03-27 | 1980-10-06 | Nec Corp | Semiconductor device |
CA2064146C (en) * | 1991-03-28 | 1997-08-12 | Hisashi Ariyoshi | Schottky barrier diode and a method of manufacturing thereof |
US5365102A (en) * | 1993-07-06 | 1994-11-15 | North Carolina State University | Schottky barrier rectifier with MOS trench |
-
1994
- 1994-11-11 JP JP6278035A patent/JPH08139341A/ja active Pending
-
1995
- 1995-11-09 EP EP95117710A patent/EP0712167A3/en not_active Withdrawn
- 1995-11-09 FI FI955395A patent/FI955395L/fi unknown
- 1995-11-10 KR KR1019950040795A patent/KR100212203B1/ko not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101072992B1 (ko) | 2004-12-30 | 2011-10-12 | 매그나칩 반도체 유한회사 | 쇼트키 다이오드 및 그 형성 방법 |
US9236500B2 (en) | 2013-09-10 | 2016-01-12 | Hyundai Motor Company | Schottky barrier diode and method for manufacturing schottky barrier diode |
Also Published As
Publication number | Publication date |
---|---|
FI955395L (fi) | 1996-05-12 |
EP0712167A2 (en) | 1996-05-15 |
KR960019807A (ko) | 1996-06-17 |
JPH08139341A (ja) | 1996-05-31 |
EP0712167A3 (en) | 1996-07-31 |
FI955395A0 (fi) | 1995-11-09 |
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