JP5389033B2 - 半導体装置および同半導体装置の製造方法 - Google Patents
半導体装置および同半導体装置の製造方法 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims description 21
- 238000004519 manufacturing process Methods 0.000 title description 5
- 238000000034 method Methods 0.000 title description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 64
- 229910052710 silicon Inorganic materials 0.000 claims description 64
- 239000010703 silicon Substances 0.000 claims description 64
- 230000015556 catabolic process Effects 0.000 claims description 48
- 229910000577 Silicon-germanium Inorganic materials 0.000 claims description 19
- 239000000758 substrate Substances 0.000 claims description 12
- 239000002019 doping agent Substances 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 229910052732 germanium Inorganic materials 0.000 claims description 6
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 5
- 229910052796 boron Inorganic materials 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 230000001419 dependent effect Effects 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 238000004088 simulation Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
- 239000002800 charge carrier Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
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- 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
- H01L29/868—PIN diodes
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- 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
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- 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
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- 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]
- 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
- H01L29/0623—Buried supplementary region, e.g. buried guard ring
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- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
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- 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
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- 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
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
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- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Electrodes Of Semiconductors (AREA)
Description
本発明の課題は、自動車発電機システムでツェナーダイオード(Zダイオード)として使用するのに適した、順電圧が低く、ロバストネスの高いダイオードを実現することを含んでいる。この課題は独立請求項に記載された特徴によって解決される。
図4に示されているように、本発明のHJD−BEは、高濃度nドープシリコン基板1、第1のn型シリコンエピタキシャル層22、第2のn型シリコンエピタキシャル層12、SiGe層3、少なくとも1つの埋め込みpドープエミッタウェル9、チップ上面のオーミックコンタクトないしアノード電極としての金属層4、およびチップ下面のオーミックコンタクトないしカソード電極としての金属層5から成っている。第1のn型シリコンエピタキシャル層22は第2のn型シリコンエピタキシャル層12よりも高いドーパント濃度を用いる。pドープSiGe層3と第2のn型シリコンエピタキシャル層12の間のpn接合の他に、埋め込みpドープエミッタウェル9と第1のn型シリコンエピタキシャル層22の間にも、埋め込みpドープエミッタウェル9と第2のn型シリコンエピタキシャル層12の間にもpn接合が形成されている。
降伏電圧BV1,BV2の独立した選択、あるいはBV=BV1+BV2、
ボリューム降伏による高いロバストネス、
降伏電圧の温度係数の補償
といった利点はショットキーダイオードにおいても実現できる。
Claims (15)
- 高濃度nドープシリコン基板(1)と第1のn型シリコンエピタキシャル層(22)とから成る半導体装置であって、前記第1のn型シリコンエピタキシャル層(22)は前記高濃度nドープシリコン基板(1)に直に接しており、pドープSiGe層(3)が第2のn型シリコンエピタキシャル層(12)に接し、pn接合をヘテロ接合ダイオードとして形成しており、当該ヘテロ接合ダイオードは前記第1のn型シリコンエピタキシャル層(22)の上にあり、前記第1のn型シリコンエピタキシャル層(22)は前記第2のn型シリコンエピタキシャル層(12)よりも高いドーパント濃度を有しており、前記2つのn型シリコンエピタキシャル層の間には少なくとも1つのpドープエミッタウェル(9)があって、埋め込みエミッタを形成しており、前記第1のn型シリコンエピタキシャル層(22)と前記第2のn型シリコンエピタキシャル層(12)とへのpn接合が形成されており、前記少なくとも1つのエミッタウェル(9)は前記2つのエピタキシャル層によって完全に包囲されており、
前記高濃度nドープシリコン基板(1)と前記第1のn型シリコンエピタキシャル層(22)と前記埋め込みpドープエミッタウェル(9)とから成る第1の部分構造は該部分構造の降伏電圧BV1がなだれ降伏によって決まるように設計されており、前記埋め込みpドープエミッタウェル(9)と前記第2のn型シリコンエピタキシャル層(12)と前記SiGe層(3)とから成る第2の部分構造は該部分構造の降伏電圧BV2がリーチスルー効果によって決まるように設計されており、総降伏電圧BV=BV1+BV2である、ことを特徴とする半導体装置。 - 前記半導体装置全体の降伏電圧BVの温度係数が非常に小さいまたはまったく消えてしまうように、前記第1の部分構造の降伏電圧BV1は正の温度係数を有しており、前記第2の部分構造の降伏電圧BV2は負の温度係数を有している、請求項1記載の装置。
- 前記pドープSiGe層(3)のゲルマニウムの割合が10〜40%である、請求項1または2記載の装置。
- 前記pドープSiGe層(3)は1019l/cm3を超す濃度のホウ素でドープされており、ホウ素のドーピングプロフィールは階段状である、請求項1から3のいずれか1項記載の装置。
- 発電機効率を高めるために自動車発電機の整流器で使用される、請求項1から4のいずれか1項記載の装置。
- 前記SiGeないしSi領域が他の半導体材料に置き換えられている、請求項1から5のいずれか1項記載の装置。
- 前記他の半導体材料はIII-V族化合物である、請求項6記載の装置。
- 前記降伏電圧が20Vまたは40Vである、請求項1から7のいずれか1項記載の装置。
- 前記降伏電圧が40Vよりも高い、請求項1から7のいずれか1項記載の装置。
- 前記ヘテロ接合p型SiGe/n型Siがホモ接合に置き換えられている、請求項1または2記載の装置。
- 前記ホモ接合はp型Si/n型Si接合である、請求項10記載の装置。
- 前記半導体装置は縁部構造として他の半導体素子を縁部に環状に有している、請求項1から11のいずれか1項記載の装置。
- 前記他の半導体素子は、ダイオード、MOSFET、IGBTである、請求項12記載の装置。
- 前記層のドーピングの順序を正確に逆にした(pの代わりにn、nの代わりにp)、請求項1から13のいずれか1項記載の装置。
- 金属層(44)と前記第2のn型シリコンエピタキシャル層(12)の間の接合がショットキーコンタクトとして形成されており、前記pドープSiGe層(3)は当該ショットキーコンタクトに置き換えられている、請求項1または2記載の装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007045184.0 | 2007-09-21 | ||
DE102007045184A DE102007045184A1 (de) | 2007-09-21 | 2007-09-21 | Halbleitervorrichtung und Verfahren zu deren Herstellung |
PCT/EP2008/062346 WO2009040279A1 (de) | 2007-09-21 | 2008-09-17 | Halbleitervorrichtung und verfahren zu deren herstellung |
Publications (2)
Publication Number | Publication Date |
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JP2010539720A JP2010539720A (ja) | 2010-12-16 |
JP5389033B2 true JP5389033B2 (ja) | 2014-01-15 |
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Application Number | Title | Priority Date | Filing Date |
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JP2010525332A Expired - Fee Related JP5389033B2 (ja) | 2007-09-21 | 2008-09-17 | 半導体装置および同半導体装置の製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8334179B2 (ja) |
JP (1) | JP5389033B2 (ja) |
CN (1) | CN101803029B (ja) |
DE (1) | DE102007045184A1 (ja) |
WO (1) | WO2009040279A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102569334A (zh) * | 2010-12-22 | 2012-07-11 | 中国科学院微电子研究所 | 阻变随机存储装置及系统 |
US8901647B2 (en) * | 2011-12-08 | 2014-12-02 | Infineon Technologies Ag | Semiconductor device including first and second semiconductor elements |
DE102012103699A1 (de) * | 2012-02-15 | 2013-08-22 | First Sensor AG | Halbleiterstruktur für einen Strahlungsdetektor sowie Strahlungsdetektor |
JP2022044549A (ja) * | 2020-09-07 | 2022-03-17 | ロバート ボッシュ (オーストラリア) ピーティーワイ リミテッド | 整流素子のパッケージング方法および整流素子 |
CN115579382A (zh) * | 2022-12-12 | 2023-01-06 | 深圳市森国科科技股份有限公司 | 半导体器件的终端结构及其半导体器件 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1558506A (en) * | 1976-08-09 | 1980-01-03 | Mullard Ltd | Semiconductor devices having a rectifying metalto-semicondductor junction |
JP3505892B2 (ja) * | 1995-12-27 | 2004-03-15 | ソニー株式会社 | バイポーラトランジスタの製造方法 |
JPH10117003A (ja) * | 1996-10-14 | 1998-05-06 | Hitachi Ltd | 定電圧ダイオード及びその製造方法 |
JP4006879B2 (ja) * | 1999-04-07 | 2007-11-14 | 富士電機ホールディングス株式会社 | ショットキーバリアダイオードおよびその製造方法 |
JP2001189320A (ja) * | 2000-01-04 | 2001-07-10 | Toshiba Corp | 半導体装置およびその製造方法 |
JP4231987B2 (ja) | 2001-06-15 | 2009-03-04 | 日本電気株式会社 | 音声符号化復号方式間の符号変換方法、その装置、そのプログラム及び記憶媒体 |
JP2003069008A (ja) * | 2001-08-23 | 2003-03-07 | Mitsubishi Heavy Ind Ltd | 半導体基板、電力変換器、回転機械、及び、半導体基板の製造方法 |
US20030141565A1 (en) * | 2002-01-28 | 2003-07-31 | Fumihiko Hirose | Diode |
JP3930436B2 (ja) * | 2002-03-26 | 2007-06-13 | 株式会社東芝 | 半導体装置 |
JP2004072055A (ja) * | 2002-06-10 | 2004-03-04 | Mitsubishi Heavy Ind Ltd | 半導体装置及びその製造方法 |
DE10361136B4 (de) * | 2003-12-23 | 2005-10-27 | Infineon Technologies Ag | Halbleiterdiode und IGBT |
JP2005303027A (ja) * | 2004-04-13 | 2005-10-27 | Nissan Motor Co Ltd | 半導体装置 |
DE102004056663A1 (de) | 2004-11-24 | 2006-06-01 | Robert Bosch Gmbh | Halbleitereinrichtung und Gleichrichteranordnung |
DE102005029263B4 (de) * | 2005-06-23 | 2011-07-07 | Infineon Technologies Austria Ag | Halbleiterbauelement mit verbesserter dynamischer Belastbarkeit |
DE102006024850A1 (de) | 2006-05-24 | 2007-11-29 | Robert Bosch Gmbh | Halbleiterbauelement und Gleichrichteranordnung |
US7638816B2 (en) * | 2007-08-28 | 2009-12-29 | Littelfuse, Inc. | Epitaxial surge protection device |
US7943959B2 (en) * | 2007-08-28 | 2011-05-17 | Littelfuse, Inc. | Low capacitance semiconductor device |
-
2007
- 2007-09-21 DE DE102007045184A patent/DE102007045184A1/de not_active Withdrawn
-
2008
- 2008-09-17 US US12/733,775 patent/US8334179B2/en active Active
- 2008-09-17 CN CN200880107841.5A patent/CN101803029B/zh not_active Expired - Fee Related
- 2008-09-17 WO PCT/EP2008/062346 patent/WO2009040279A1/de active Application Filing
- 2008-09-17 JP JP2010525332A patent/JP5389033B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP2010539720A (ja) | 2010-12-16 |
US20100301387A1 (en) | 2010-12-02 |
US8334179B2 (en) | 2012-12-18 |
CN101803029B (zh) | 2012-11-28 |
WO2009040279A1 (de) | 2009-04-02 |
CN101803029A (zh) | 2010-08-11 |
DE102007045184A1 (de) | 2009-04-02 |
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