JP6098707B2 - 半導体装置 - Google Patents
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- JP6098707B2 JP6098707B2 JP2015500031A JP2015500031A JP6098707B2 JP 6098707 B2 JP6098707 B2 JP 6098707B2 JP 2015500031 A JP2015500031 A JP 2015500031A JP 2015500031 A JP2015500031 A JP 2015500031A JP 6098707 B2 JP6098707 B2 JP 6098707B2
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- 239000004065 semiconductor Substances 0.000 title claims description 130
- 239000000758 substrate Substances 0.000 claims description 66
- 239000012535 impurity Substances 0.000 claims description 17
- 238000009825 accumulation Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000010410 layer Substances 0.000 description 212
- 239000012141 concentrate Substances 0.000 description 8
- 230000015556 catabolic process Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000000969 carrier Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 1
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- H—ELECTRICITY
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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
- H01L29/68—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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- 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
- H01L29/06—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
- H01L29/0684—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 the shape, relative sizes or dispositions of the semiconductor regions or junctions between the regions
- H01L29/0692—Surface layout
- H01L29/0696—Surface layout of cellular field-effect devices, e.g. multicellular DMOS transistors or IGBTs
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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
- H01L29/02—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
- H01L29/08—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 with semiconductor regions connected to an electrode carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- H01L29/083—Anode or cathode regions of thyristors or gated bipolar-mode devices
- H01L29/0834—Anode regions of thyristors or gated bipolar-mode devices, e.g. supplementary regions surrounding anode regions
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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
- H01L29/10—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 with semiconductor regions connected to an electrode not carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- H01L29/1095—Body region, i.e. base region, of DMOS transistors or IGBTs
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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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
- H01L27/0744—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 without components of the field effect type
- H01L27/075—Bipolar transistors in combination with diodes, or capacitors, or resistors, e.g. lateral bipolar transistor, and vertical bipolar transistor and resistor
- H01L27/0755—Vertical bipolar transistor in combination with diodes, or capacitors, or resistors
- H01L27/0761—Vertical bipolar transistor in combination with diodes only
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- Condensed Matter Physics & Semiconductors (AREA)
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- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Description
Claims (4)
- 少なくともIGBT領域を含む素子領域が半導体基板に形成されている半導体装置であって、
半導体基板の表面には表面電極が設けられており、半導体基板の裏面には裏面電極が設けられており、
IGBT領域は、
裏面電極に接している第1導電型のコレクタ層と、
コレクタ層に対して半導体基板の表面側に設けられた、第2導電型のドリフト層と、
ドリフト層に対して半導体基板の表面側に設けられており、表面電極に接している第1導電型のボディ層と、
半導体基板の表面からドリフト層まで達するトレンチの内部に配置されており、絶縁膜によって半導体基板と表面電極から絶縁されたゲート電極と、
ボディ層と表面電極の間に設けられており、ゲート電極の絶縁膜と表面電極に接している第2導電型のエミッタ層と、
ボディ層と表面電極の間に設けられており、表面電極に接している、ボディ層より不純物濃度が高い第1導電型のコンタクト層を備えており、
半導体基板の表面に沿ってトレンチが伸びる方向をX方向とし、半導体基板の表面に沿ってX方向に直交する方向をY方向としたときに、
エミッタ層が、並んで配置された2つのトレンチの間で、一方のトレンチから他方のトレンチまで、Y方向に沿って伸びるように配置されており、
半導体基板を上方から平面視したときに、ボディ層が、トレンチとエミッタ層によって区画されており、コンタクト層が、区画されたボディ層の中央付近に配置されており、
コンタクト層からエミッタ層までのX方向の間隔が、コンタクト層からトレンチまでのY方向の間隔よりも大きく、
素子領域の周縁部におけるコンタクト層からエミッタ層までのX方向の間隔が、他の部分におけるコンタクト層からエミッタ層までのX方向の間隔よりも小さい、半導体装置。 - 半導体基板にセンスIGBT領域がさらに形成されており、
センスIGBT領域は、
裏面電極に接している第1導電型のセンスコレクタ層と、
センスコレクタ層に対して半導体基板の表面側に設けられた、第2導電型のセンスドリフト層と、
センスドリフト層に対して半導体基板の表面側に設けられており、表面電極に接している第1導電型のセンスボディ層と、
半導体基板の表面からセンスドリフト層まで達するトレンチの内部に配置されており、絶縁膜によって半導体基板と表面電極から絶縁されたセンスゲート電極と、
センスボディ層と表面電極の間に設けられており、センスゲート電極の絶縁膜と表面電極に接している第2導電型のセンスエミッタ層と、
センスボディ層と表面電極の間に設けられており、表面電極に接している、センスボディ層より不純物濃度が高い第1導電型のセンスコンタクト層を備えており、
センスエミッタ層が、並んで配置された2つのトレンチの間で、一方のトレンチから他方のトレンチまで、Y方向に沿って伸びるように配置されており、
半導体基板を上方から平面視したときに、センスボディ層が、トレンチとセンスエミッタ層によって区画されており、センスコンタクト層が、区画されたセンスボディ層の中央付近に配置されており、
センスIGBT領域におけるセンスコンタクト層からセンスエミッタ層までのX方向の間隔が、IGBT領域におけるコンタクト層からエミッタ層までのX方向の間隔よりも小さい、請求項1の半導体装置。 - 少なくともIGBT領域を含む素子領域が半導体基板に形成されている半導体装置であって、
半導体基板の表面には表面電極が設けられており、半導体基板の裏面には裏面電極が設けられており、
IGBT領域は、
裏面電極に接している第1導電型のコレクタ層と、
コレクタ層に対して半導体基板の表面側に設けられた、第2導電型のドリフト層と、
ドリフト層に対して半導体基板の表面側に設けられており、表面電極に接している第1導電型のボディ層と、
半導体基板の表面からドリフト層まで達するトレンチの内部に配置されており、絶縁膜によって半導体基板と表面電極から絶縁されたゲート電極と、
ボディ層と表面電極の間に設けられており、ゲート電極の絶縁膜と表面電極に接している第2導電型のエミッタ層と、
ボディ層と表面電極の間に設けられており、表面電極に接している、ボディ層より不純物濃度が高い第1導電型のコンタクト層を備えており、
半導体基板の表面に沿ってトレンチが伸びる方向をX方向とし、半導体基板の表面に沿ってX方向に直交する方向をY方向としたときに、
エミッタ層が、並んで配置された2つのトレンチの間で、一方のトレンチから他方のトレンチまで、Y方向に沿って伸びるように配置されており、
半導体基板を上方から平面視したときに、ボディ層が、トレンチとエミッタ層によって区画されており、コンタクト層が、区画されたボディ層の中央付近に配置されており、
コンタクト層からエミッタ層までのX方向の間隔が、コンタクト層からトレンチまでのY方向の間隔よりも大きく、
半導体基板にセンスIGBT領域がさらに形成されており、
センスIGBT領域は、
裏面電極に接している第1導電型のセンスコレクタ層と、
センスコレクタ層に対して半導体基板の表面側に設けられた、第2導電型のセンスドリフト層と、
センスドリフト層に対して半導体基板の表面側に設けられており、表面電極に接している第1導電型のセンスボディ層と、
半導体基板の表面からセンスドリフト層まで達するトレンチの内部に配置されており、絶縁膜によって半導体基板と表面電極から絶縁されたセンスゲート電極と、
センスボディ層と表面電極の間に設けられており、センスゲート電極の絶縁膜と表面電極に接している第2導電型のセンスエミッタ層と、
センスボディ層と表面電極の間に設けられており、表面電極に接している、センスボディ層より不純物濃度が高い第1導電型のセンスコンタクト層を備えており、
センスエミッタ層が、並んで配置された2つのトレンチの間で、一方のトレンチから他方のトレンチまで、Y方向に沿って伸びるように配置されており、
半導体基板を上方から平面視したときに、センスボディ層が、トレンチとセンスエミッタ層によって区画されており、センスコンタクト層が、区画されたセンスボディ層の中央付近に配置されており、
センスIGBT領域におけるセンスコンタクト層からセンスエミッタ層までのX方向の間隔が、IGBT領域におけるコンタクト層からエミッタ層までのX方向の間隔よりも小さい、半導体装置。 - ドリフト層と表面電極の間を遮るようにボディ層の内部に設けられた、第2導電型のキャリア蓄積層をさらに備える、請求項1から3の何れか一項の半導体装置。
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PCT/JP2013/053418 WO2014125583A1 (ja) | 2013-02-13 | 2013-02-13 | 半導体装置 |
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US (1) | US9312372B2 (ja) |
JP (1) | JP6098707B2 (ja) |
CN (1) | CN104995737B (ja) |
DE (1) | DE112013006666B4 (ja) |
WO (1) | WO2014125583A1 (ja) |
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JP6411929B2 (ja) * | 2015-03-24 | 2018-10-24 | トヨタ自動車株式会社 | Mosfet |
DE112017000063T5 (de) * | 2016-02-15 | 2018-03-22 | Fuji Electric Co., Ltd. | Halbleitervorrichtung |
DE112017000079T5 (de) | 2016-03-10 | 2018-05-17 | Fuji Electric Co., Ltd. | Halbleitervorrichtung |
US10205012B2 (en) * | 2016-03-11 | 2019-02-12 | Fuji Electric Co., Ltd. | Semiconductor device |
CN111052394B (zh) | 2018-03-15 | 2024-01-16 | 富士电机株式会社 | 半导体装置 |
JP7055056B2 (ja) | 2018-04-24 | 2022-04-15 | 三菱電機株式会社 | 半導体装置および半導体装置の製造方法 |
DE112019000166T5 (de) | 2018-06-22 | 2020-07-09 | Fuji Electric Co., Ltd. | Verfahren zur Herstellung einer Halbleitervorrichtung und Halbleitervorrichtung |
JP7279356B2 (ja) | 2018-12-19 | 2023-05-23 | 富士電機株式会社 | 半導体装置 |
JP7528743B2 (ja) * | 2020-11-27 | 2024-08-06 | 三菱電機株式会社 | 半導体装置 |
JP7486407B2 (ja) * | 2020-11-27 | 2024-05-17 | 三菱電機株式会社 | 半導体装置および半導体装置の製造方法 |
WO2024209776A1 (ja) * | 2023-04-06 | 2024-10-10 | ミネベアパワーデバイス株式会社 | 半導体装置 |
WO2024209777A1 (ja) * | 2023-04-06 | 2024-10-10 | ミネベアパワーデバイス株式会社 | 半導体装置 |
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JPH10256550A (ja) * | 1997-01-09 | 1998-09-25 | Toshiba Corp | 半導体装置 |
JP3905271B2 (ja) | 1999-11-12 | 2007-04-18 | 株式会社豊田中央研究所 | 半導体装置 |
JP4085781B2 (ja) * | 2002-11-01 | 2008-05-14 | トヨタ自動車株式会社 | 電界効果型半導体装置 |
JP4731848B2 (ja) * | 2004-07-16 | 2011-07-27 | 株式会社豊田中央研究所 | 半導体装置 |
JP4212552B2 (ja) * | 2004-12-22 | 2009-01-21 | 株式会社東芝 | 半導体装置 |
JP2008227251A (ja) | 2007-03-14 | 2008-09-25 | Mitsubishi Electric Corp | 絶縁ゲート型トランジスタ |
JP4893609B2 (ja) | 2007-12-07 | 2012-03-07 | トヨタ自動車株式会社 | 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 |
JP2009170532A (ja) * | 2008-01-11 | 2009-07-30 | Sanyo Electric Co Ltd | 絶縁ゲート型半導体装置およびその製造方法 |
JP2009170629A (ja) * | 2008-01-16 | 2009-07-30 | Nec Electronics Corp | 半導体装置の製造方法 |
US8507945B2 (en) * | 2008-03-31 | 2013-08-13 | Mitsubishi Electric Corporation | Semiconductor device including an insulated gate bipolar transistor (IGBT) |
JP2010263149A (ja) | 2009-05-11 | 2010-11-18 | Toyota Motor Corp | 半導体装置 |
JP5013436B2 (ja) * | 2009-06-04 | 2012-08-29 | 三菱電機株式会社 | 電力用半導体装置 |
JP2013026534A (ja) * | 2011-07-25 | 2013-02-04 | Toyota Central R&D Labs Inc | 半導体装置 |
JP2013197122A (ja) * | 2012-03-15 | 2013-09-30 | Toshiba Corp | 半導体装置 |
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2013
- 2013-02-13 US US14/766,023 patent/US9312372B2/en not_active Expired - Fee Related
- 2013-02-13 JP JP2015500031A patent/JP6098707B2/ja not_active Expired - Fee Related
- 2013-02-13 CN CN201380072872.2A patent/CN104995737B/zh not_active Expired - Fee Related
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DE112013006666T5 (de) | 2015-10-29 |
US20150380536A1 (en) | 2015-12-31 |
WO2014125583A1 (ja) | 2014-08-21 |
CN104995737B (zh) | 2017-10-27 |
US9312372B2 (en) | 2016-04-12 |
JPWO2014125583A1 (ja) | 2017-02-02 |
DE112013006666B4 (de) | 2019-04-11 |
CN104995737A (zh) | 2015-10-21 |
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