JPWO2011027474A1 - ダイオード領域とigbt領域を有する半導体基板を備える半導体装置 - Google Patents
ダイオード領域とigbt領域を有する半導体基板を備える半導体装置Info
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- JPWO2011027474A1 JPWO2011027474A1 JP2011529763A JP2011529763A JPWO2011027474A1 JP WO2011027474 A1 JPWO2011027474 A1 JP WO2011027474A1 JP 2011529763 A JP2011529763 A JP 2011529763A JP 2011529763 A JP2011529763 A JP 2011529763A JP WO2011027474 A1 JPWO2011027474 A1 JP WO2011027474A1
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 76
- 239000000758 substrate Substances 0.000 title claims abstract description 32
- 238000002955 isolation Methods 0.000 claims abstract description 50
- 210000000746 body region Anatomy 0.000 claims abstract description 10
- 239000012535 impurity Substances 0.000 claims description 14
- 238000000926 separation method Methods 0.000 description 21
- 239000013078 crystal Substances 0.000 description 12
- 230000007547 defect Effects 0.000 description 12
- 238000011084 recovery Methods 0.000 description 12
- 239000000969 carrier Substances 0.000 description 11
- 239000002245 particle Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000006798 recombination Effects 0.000 description 9
- 238000005215 recombination Methods 0.000 description 7
- 238000002513 implantation Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
- H01L27/06—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration
- H01L27/0611—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration integrated circuits having a two-dimensional layout of components without a common active region
- H01L27/0641—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration integrated circuits having a two-dimensional layout of components without a common active region without components of the field effect type
- H01L27/0647—Bipolar transistors in combination with diodes, or capacitors, or resistors, e.g. vertical bipolar transistor and bipolar lateral transistor and resistor
- H01L27/0652—Vertical bipolar transistor in combination with diodes, or capacitors, or resistors
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- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/761—PN junctions
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- H—ELECTRICITY
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- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
- H01L27/06—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration
- H01L27/07—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration the components having an active region in common
- H01L27/0705—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration the components having an active region in common comprising components of the field effect type
- H01L27/0727—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration the components having an active region in common comprising components of the field effect type in combination with diodes, or capacitors or resistors
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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
- H01L29/30—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by physical imperfections; having polished or roughened surface
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- H—ELECTRICITY
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- 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
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/70—Bipolar devices
- H01L29/72—Transistor-type devices, i.e. able to continuously respond to applied control signals
- H01L29/739—Transistor-type devices, i.e. able to continuously respond to applied control signals controlled by field-effect, e.g. bipolar static induction transistors [BSIT]
- H01L29/7393—Insulated gate bipolar mode transistors, i.e. IGBT; IGT; COMFET
- H01L29/7395—Vertical transistors, e.g. vertical IGBT
- H01L29/7396—Vertical transistors, e.g. vertical IGBT with a non planar surface, e.g. with a non planar gate or with a trench or recess or pillar in the surface of the emitter, base or collector region for improving current density or short circuiting the emitter and base regions
- H01L29/7397—Vertical transistors, e.g. vertical IGBT with a non planar surface, e.g. with a non planar gate or with a trench or recess or pillar in the surface of the emitter, base or collector region for improving current density or short circuiting the emitter and base regions and a gate structure lying on a slanted or vertical surface or formed in a groove, e.g. trench gate IGBT
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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
- H01L29/66—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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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Abstract
Description
図1に示すように、半導体装置10は、半導体基板12と、半導体基板12の上面及び下面に形成されている金属層及び絶縁層等を備えている。半導体基板12には、ダイオード領域20とIGBT領域40が形成されている。
半導体装置10のダイオードの動作について説明する。アノード電極22と共通電極60の間に、アノード電極22がプラスとなる電圧(すなわち、順電圧)を印加すると、ダイオードがオンする。すなわち、アノード電極22から、アノード層26、ダイオードドリフト層28、及び、カソード層30を経由して、共通電極60に電流が流れる。
半導体装置10のIGBTの動作について説明する。エミッタ電極42と共通電極60の間に共通電極60がプラスとなる電圧を印加し、ゲート電極54にオン電位(チャネルが形成されるのに必要な電位以上の電位)を印加すると、IGBTがオンする。すなわち、ゲート電極54へのオン電位の印加により、ゲート絶縁膜56に接する範囲の低濃度ボディ層48bにチャネルが形成される。すると、電子が、エミッタ電極42から、エミッタ領域44、チャネル、IGBTドリフト層50、及び、コレクタ層52を介して、共通電極60に流れる。また、ホールが、共通電極60から、コレクタ層52、IGBTドリフト層50、低濃度ボディ層48b、及び、ボディコンタクト領域48aを介して、エミッタ電極42に流れる。すなわち、共通電極60からエミッタ電極42に電流が流れる。
Claims (2)
- ダイオード領域とIGBT領域が形成されている半導体基板を備える半導体装置であって、
ダイオード領域内の半導体基板の上面にアノード電極が形成されており、
IGBT領域内の半導体基板の上面にエミッタ電極が形成されており、
半導体基板の下面に共通電極が形成されており、
ダイオード領域には、
p型であり、アノード電極に接しているアノード領域と、
n型であり、アノード領域の下側に形成されているダイオードドリフト領域と、
n型であり、ダイオードドリフト領域よりn型不純物濃度が高く、ダイオードドリフト領域の下側に形成されており、共通電極に接しているカソード領域、
が形成されており、
IGBT領域には、
n型であり、エミッタ電極に接しているエミッタ領域と、
p型であり、エミッタ領域の側方及び下側に形成されており、エミッタ電極に接しているボディ領域と、
n型であり、ボディ領域の下側に形成されているIGBTドリフト領域と、
p型であり、IGBTドリフト領域の下側に形成されており、共通電極に接しているコレクタ領域と、
エミッタ領域とIGBTドリフト領域を分離している範囲のボディ領域に絶縁膜を介して対向しているゲート電極、
が形成されており、
ダイオード領域とIGBT領域の間には、半導体基板の上面からアノード領域の下端及びボディ領域の下端より深い深さまでの範囲に、p型の分離領域が形成されており、
ダイオードドリフト領域内には、ダイオードライフタイム制御領域が形成されており、
ダイオードライフタイム制御領域のキャリアライフタイムは、ダイオードライフタイム制御領域外のダイオードドリフト領域のキャリアライフタイムより短く、
ダイオードライフタイム制御領域のIGBT領域側の端部が、分離領域の下に位置している、
ことを特徴とする半導体装置。 - IGBTドリフト領域内には、IGBTライフタイム制御領域が形成されており、
IGBTライフタイム制御領域のキャリアライフタイムは、IGBTライフタイム制御領域外のIGBTドリフト領域のキャリアライフタイムより短く、
IGBTライフタイム制御領域のダイオード領域側の端部が、分離領域の下に位置している、
ことを特徴とする請求項1または2に記載の半導体装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2009/065606 WO2011027474A1 (ja) | 2009-09-07 | 2009-09-07 | ダイオード領域とigbt領域を有する半導体基板を備える半導体装置 |
Publications (2)
Publication Number | Publication Date |
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JPWO2011027474A1 true JPWO2011027474A1 (ja) | 2013-01-31 |
JP5282822B2 JP5282822B2 (ja) | 2013-09-04 |
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JP2011529763A Expired - Fee Related JP5282822B2 (ja) | 2009-09-07 | 2009-09-07 | ダイオード領域とigbt領域を有する半導体基板を備える半導体装置 |
Country Status (6)
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US (1) | US8299496B2 (ja) |
EP (1) | EP2477226B1 (ja) |
JP (1) | JP5282822B2 (ja) |
KR (1) | KR101335833B1 (ja) |
CN (1) | CN102422416B (ja) |
WO (1) | WO2011027474A1 (ja) |
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WO2011030454A1 (ja) | 2009-09-14 | 2011-03-17 | トヨタ自動車株式会社 | ダイオード領域とigbt領域を有する半導体基板を備える半導体装置 |
JP4957840B2 (ja) * | 2010-02-05 | 2012-06-20 | 株式会社デンソー | 絶縁ゲート型半導体装置 |
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2009
- 2009-09-07 WO PCT/JP2009/065606 patent/WO2011027474A1/ja active Application Filing
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JPH1041510A (ja) * | 1996-05-22 | 1998-02-13 | Fuji Electric Co Ltd | 温度検知部内蔵型バイポーラ半導体素子およびその製造方法 |
JP2008192737A (ja) * | 2007-02-02 | 2008-08-21 | Denso Corp | 半導体装置 |
JP2008211148A (ja) * | 2007-02-28 | 2008-09-11 | Fuji Electric Device Technology Co Ltd | 半導体装置およびその製造方法 |
JP2008235405A (ja) * | 2007-03-19 | 2008-10-02 | Denso Corp | 半導体装置 |
JP2009170670A (ja) * | 2008-01-16 | 2009-07-30 | Toyota Motor Corp | 半導体装置とその半導体装置を備えている給電装置の駆動方法 |
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EP2477226B1 (en) | 2016-06-22 |
KR20110127232A (ko) | 2011-11-24 |
US20120007142A1 (en) | 2012-01-12 |
US8299496B2 (en) | 2012-10-30 |
CN102422416A (zh) | 2012-04-18 |
EP2477226A4 (en) | 2013-09-04 |
CN102422416B (zh) | 2014-05-14 |
JP5282822B2 (ja) | 2013-09-04 |
KR101335833B1 (ko) | 2013-12-03 |
EP2477226A1 (en) | 2012-07-18 |
WO2011027474A1 (ja) | 2011-03-10 |
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