JP6570599B2 - スタック状のショットキーダイオード - Google Patents
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- JP6570599B2 JP6570599B2 JP2017218542A JP2017218542A JP6570599B2 JP 6570599 B2 JP6570599 B2 JP 6570599B2 JP 2017218542 A JP2017218542 A JP 2017218542A JP 2017218542 A JP2017218542 A JP 2017218542A JP 6570599 B2 JP6570599 B2 JP 6570599B2
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- 239000004065 semiconductor Substances 0.000 claims description 56
- 239000002019 doping agent Substances 0.000 claims description 20
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 15
- -1 GaAs compound Chemical class 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 150000002736 metal compounds Chemical class 0.000 claims description 4
- 238000005468 ion implantation Methods 0.000 claims 1
- 239000000758 substrate Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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- H01L29/861—Diodes
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
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- 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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- H01L29/0619—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] with a supplementary region doped oppositely to or in rectifying contact with the semiconductor containing or contacting region, e.g. guard rings with PN or Schottky junction
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66083—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials 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
- H01L29/6609—Diodes
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- 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
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
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- H01L29/66196—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials 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 with an active layer made of a group 13/15 material
- H01L29/66204—Diodes
- H01L29/66212—Schottky diodes
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Electrodes Of Semiconductors (AREA)
Description
p-中間層が、10μm〜25μmの厚さを有しており、かつn-層に関しては、40μm〜90μmの厚さによって、約900Vの逆電圧が生じる。
p-中間層が、25μm〜25μmの厚さを有しており、かつn-層に関しては、40μm〜70μmの厚さによって、約1,200Vの逆電圧が生じる。
p-中間層が、35μm〜50μmの厚さを有しており、かつn-層に関しては、70μm〜150μm〜70μmの厚さによって、約1,500Vの逆電圧が生じる。
p-中間層が、10μm〜25μmの厚さを有しており、かつn-層に関しては、60μm〜110μmの厚さを有している。
p-中間層が、10μm〜25μmの厚さを有しており、かつn-層に関しては、70μm〜140μmの厚さを有している。
p-中間層が、35μm〜50μmの厚さを有しており、かつn-層に関しては、80μm〜200μmの厚さを有している。
Claims (8)
- スタック状のショットキーダイオード(10)であって、
上面(32)および下面(34)を備えており、少なくとも3つの半導体層(20、22、24)を含んでいるスタック(30)と、
前記スタック(30)の前記下面(34)と素材結合により結合されている第1の端子コンタクト層(40)と、
前記スタック(30)の前記上面(32)と素材結合により結合されている第2の端子コンタクト層(50)と、
を有しており、
前記第2の端子コンタクト層(50)は、金属または金属化合物を含有しているか、もしくは金属または金属化合物から成り、かつショットキーコンタクトを形成しており、
前記第2の端子コンタクト層(50)は、前記上面(32)の一部の領域に配置されており、かつ4つの縁によって画定されており、
前記スタック(30)の前記下面(34)には、n+層として形成されている第1の半導体層(20)が配置されており、前記第1の半導体層(20)は、少なくとも1019N/cm 3 のドーパント濃度および50μm〜400μmの層厚を有しており、かつGaAs化合物を含有しているか、またはGaAs化合物から成り、
前記第1の半導体層(20)の上には、n-層として形成されている第2の半導体層(22)が配置されており、前記第2の半導体層(22)は、1012 N/cm 3 〜1016N/cm 3 のドーパント濃度および10μm〜300μmの層厚を有しており、かつGaAs化合物を含有しているか、またはGaAs化合物から成る、
ショットキーダイオード(10)において、
前記第2の半導体層(22)の上には、p-層として形成されている第3の半導体層(24)が配置されており、前記第3の半導体層(24)は、1012 N/cm 3 〜1016N/cm 3 のドーパント濃度および10nm〜10μmの層厚を有しており、かつGaAs化合物を含有しているか、またはGaAs化合物から成り、
前記第3の半導体層(24)および前記第2の半導体層(22)は、モノリシックに形成されており、
前記第1の半導体層(20)および前記第2の半導体層(22)は、モノリシックに形成されているか、またはウェハボンディングにより接合されており、
前記スタック(30)は、それぞれ相互に距離を置いて設けられている複数のp+領域(60、62;60.1〜60.7)を有しており、前記p+領域(60、62;60.1〜60.7)は、前記スタック(30)の前記上面(32)に対して平行に延びるリブとして形成されており、
前記p+領域(60、62;60.1〜60.7)は、5×1018 N/cm 3 〜5×1020N/cm 3 のドーパント濃度を有しており、
前記p+領域(60、62;60.1〜60.7)は、前記スタック(30)の前記上面(32)から前記第2の半導体層(22)内にまで達しており、
前記p + 領域(60、62;60.1〜60.7)に平行に延在する、前記第2の端子コンタクト層(50)の2つの縁は、p+領域(60、60.1〜60.7、62)内に延在していることを特徴とする、
ショットキーダイオード(10)。 - 前記3つの半導体層(20、22、24)は、記載の順序で配置されており、かつ素材結合により相互に結合されていることを特徴とする、
請求項1記載のショットキーダイオード(10)。 - 前記第3の半導体層(24)の上には、n-層として形成されている第4の半導体層(26)が配置されており、前記第4の半導体層(26)は、1012N/cm 3 〜1016N/cm 3 のドーパント濃度および0.005μm〜10μmの層厚を有しており、GaAs化合物を含有しているか、またはGaAs化合物から成り、かつ前記スタック(30)の前記上面(32)に形成されており、
前記p+領域(60、62;60.1〜60.7)は、前記第4の半導体層(26)を貫通して延在していることを特徴とする、
請求項1または2記載のショットキーダイオード(10)。 - 前記p+領域(60、62;60.1〜60.7)は、マスクおよびイオン注入を用いて形成されていることを特徴とする、
請求項1から3までのいずれか1項記載のショットキーダイオード(10)。 - p+領域(60、62;60.1〜60.7)は、相互に3μm〜30μmの範囲の距離を有していることを特徴とする、
請求項1から4までのいずれか1項記載のショットキーダイオード(10)。 - 前記ショットキーダイオード(10)は、相互に距離を置いて設けられている少なくとも5つのp+領域(60、62;60.1〜60.7)を有していることを特徴とする、
請求項1から5までのいずれか1項記載のショットキーダイオード(10)。 - 前記p+領域(60、62;60.1〜60.7)は、前記第2の端子コンタクト層(50)の縁に沿って、また前記第2の端子コンタクト層(50)の下に配置されており、前記リブは、それぞれが相互に同一の距離を有していることを特徴とする、
請求項1から6までのいずれか1項記載のショットキーダイオード(10)。 - 前記第2の端子コンタクト層(50)は、前記スタック(30)の前記上面(32)の一部だけを覆っており、かつ/または前記第1の端子コンタクト層(40)は、前記スタック(30)の前記下面(34)を完全に覆っているか、または1mm未満の狭い縁部領域を除いて覆っていることを特徴とする、
請求項1から7までのいずれか1項記載のショットキーダイオード(10)。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016013542.5 | 2016-11-14 | ||
DE102016013542.5A DE102016013542A1 (de) | 2016-11-14 | 2016-11-14 | Stapelförmige Schottky-Diode |
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JP2018082173A JP2018082173A (ja) | 2018-05-24 |
JP6570599B2 true JP6570599B2 (ja) | 2019-09-04 |
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US (1) | US10276730B2 (ja) |
EP (1) | EP3321972B1 (ja) |
JP (1) | JP6570599B2 (ja) |
CN (1) | CN108074987B (ja) |
DE (1) | DE102016013542A1 (ja) |
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DE102017011878A1 (de) * | 2017-12-21 | 2019-06-27 | 3-5 Power Electronics GmbH | Stapelförmiges III-V-Halbleiterbauelement |
DE102019000166B4 (de) * | 2019-01-14 | 2022-08-04 | Tdk-Micronas Gmbh | Bauelementhalbleiterstruktur |
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Publication number | Priority date | Publication date | Assignee | Title |
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US549655A (en) * | 1895-11-12 | Contact device for electric railways | ||
DE3005302C2 (de) * | 1980-02-13 | 1985-12-12 | Telefunken electronic GmbH, 7100 Heilbronn | Varaktor- oder Mischerdiode |
JPH01257370A (ja) * | 1988-04-07 | 1989-10-13 | Sanken Electric Co Ltd | ショットキバリア半導体装置 |
JP2667477B2 (ja) * | 1988-12-02 | 1997-10-27 | 株式会社東芝 | ショットキーバリアダイオード |
DE4036222A1 (de) * | 1990-11-14 | 1992-05-21 | Bosch Gmbh Robert | Verfahren zur herstellung von halbleiterelementen, insbesondere von dioden |
WO2000074130A1 (en) * | 1999-05-28 | 2000-12-07 | Advanced Power Devices, Inc. | Discrete schottky diode device with reduced leakage current |
US7061067B2 (en) * | 2003-07-04 | 2006-06-13 | Matsushita Electric Industrial Co., Ltd. | Schottky barrier diode |
JP4383250B2 (ja) * | 2003-07-04 | 2009-12-16 | パナソニック株式会社 | ショットキバリアダイオード及びその製造方法 |
US7834367B2 (en) * | 2007-01-19 | 2010-11-16 | Cree, Inc. | Low voltage diode with reduced parasitic resistance and method for fabricating |
US8232558B2 (en) * | 2008-05-21 | 2012-07-31 | Cree, Inc. | Junction barrier Schottky diodes with current surge capability |
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 |
JP5306392B2 (ja) * | 2011-03-03 | 2013-10-02 | 株式会社東芝 | 半導体整流装置 |
JP2014063980A (ja) * | 2012-08-30 | 2014-04-10 | Toshiba Corp | 半導体装置 |
DE102015204138A1 (de) | 2015-03-09 | 2016-09-15 | Robert Bosch Gmbh | Halbleitervorrichtung mit einer Trench-MOS-Barrier-Schottky-Diode |
-
2016
- 2016-11-14 DE DE102016013542.5A patent/DE102016013542A1/de not_active Withdrawn
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2017
- 2017-11-10 EP EP17001845.1A patent/EP3321972B1/de active Active
- 2017-11-13 JP JP2017218542A patent/JP6570599B2/ja active Active
- 2017-11-14 CN CN201711124875.2A patent/CN108074987B/zh active Active
- 2017-11-14 US US15/812,446 patent/US10276730B2/en active Active
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EP3321972A1 (de) | 2018-05-16 |
US20180138321A1 (en) | 2018-05-17 |
US10276730B2 (en) | 2019-04-30 |
DE102016013542A1 (de) | 2018-05-17 |
CN108074987A (zh) | 2018-05-25 |
JP2018082173A (ja) | 2018-05-24 |
CN108074987B (zh) | 2021-01-12 |
EP3321972B1 (de) | 2020-01-15 |
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