JP2017152508A - 半導体装置 - Google Patents
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 88
- 239000000758 substrate Substances 0.000 claims abstract description 49
- 239000012212 insulator Substances 0.000 claims abstract description 12
- 230000015556 catabolic process Effects 0.000 claims description 24
- 230000000694 effects Effects 0.000 abstract description 13
- 230000005855 radiation Effects 0.000 abstract description 3
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 230000001965 increasing effect Effects 0.000 description 28
- 230000017525 heat dissipation Effects 0.000 description 26
- 230000002093 peripheral effect Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 11
- 229910004298 SiO 2 Inorganic materials 0.000 description 7
- 230000007423 decrease Effects 0.000 description 3
- 230000020169 heat generation Effects 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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- H01L27/0203—Particular design considerations for integrated circuits
- H01L27/0207—Geometrical layout of the components, e.g. computer aided design; custom LSI, semi-custom LSI, standard cell technique
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- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/76224—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using trench refilling with dielectric materials
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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
- H01L27/08—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 only semiconductor components of a single kind
- H01L27/085—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 only semiconductor components of a single kind including field-effect components only
- H01L27/088—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 only semiconductor components of a single kind including field-effect components only the components being field-effect transistors with insulated gate
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- H—ELECTRICITY
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- 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
- H01L27/12—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 other than a semiconductor body, e.g. an insulating body
- H01L27/1203—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 other than a semiconductor body, e.g. an insulating body the substrate comprising an insulating body on a semiconductor body, e.g. SOI
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- 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
- H01L27/0203—Particular design considerations for integrated circuits
- H01L27/0207—Geometrical layout of the components, e.g. computer aided design; custom LSI, semi-custom LSI, standard cell technique
- H01L27/0211—Geometrical layout of the components, e.g. computer aided design; custom LSI, semi-custom LSI, standard cell technique adapted for requirements of temperature
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- 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
- H01L27/0203—Particular design considerations for integrated circuits
- H01L27/0248—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection
- H01L27/0251—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices
- H01L27/0266—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices using field effect transistors as protective elements
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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
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
- H03K17/082—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit
- H03K17/0822—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit in field-effect transistor switches
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Abstract
【解決手段】ハイサイドNMOSトランジスタ101は、SOI基板30の表面の領域S1に形成される。トレンチ溝41は、ハイサイドNMOSトランジスタ101を囲む。SiO2(第1の絶縁体)は、トレンチ溝41を埋める。ローサイドNMOSトランジスタ102は、トレンチ溝41の周りのSOI基板30の表面の領域S2に形成される。ローサイドNMOSトランジスタ102が形成される領域S2とSOI基板30の裏面とを繋ぐ側面Sfが露出している。
【選択図】図1A
Description
図1は本発明の実施形態を示しており、以下これについて説明する。図1Aは第1の実施形態による半導体装置を模式的に示す平面図である。また、図1Bは図1Aの矢視Aで示す領域における縦断面図を示している。
図3は本発明の第2の実施形態による半導体装置200を模式的に示す平面図である。半導体装置200はトレンチ溝41で囲われるハイサイドNMOSトランジスタ101とローサイドNMOSトランジスタ102からなり、ローサイドNMOSトランジスタ102はハイサイドNMOSトランジスタ101を囲うように、隣接して配置されている。
図4は本発明の第3の実施形態による半導体装置200を模式的に示す平面図である。本実形態は、第1の実施形態における、ローサイドNMOSトランジスタ102の分割数を増やした場合である。図にソース、ドレインは記載されていないが、各々ゲート14、15に隣接して配置されている。
図5は本発明の第4の実施形態による半導体装置200を模式的に示す平面図である。半導体装置200は、2つのハイサイドNMOSトランジスタ101と、それらを3方向で取り囲むローサイドNMOSトランジスタ102からなる。
2、3…Pウエル層
4、5…N型のドレインドリフト層
6、7…ソース
8、9…ドレイン
10、11…Pウエル層接続P層
12、13…ゲート酸化膜
14、15…ゲート
16…配線層接続コンタクト
17、20…ソース電極
18、21…ドレイン電極
19、22…ゲート電極
31…Si支持基板
32…SiO2層
33…P型半導体層
41…トレンチ溝
101…ハイサイドNMOSトランジスタ
102…ローサイドNMOSトランジスタ
200…半導体装置
201…電流駆動回路
202…電磁負荷
203…スイッチ
204…ハイサイドトランジスタ
205…抵抗
206…ハイサイドゲートドライバ
207…ローサイドトランジスタ
208…抵抗
209…ローサイドゲートドライバ
210…アクティブクランプ回路
211…電源
Claims (10)
- 半導体基板と、
前記半導体基板の表面の第1の領域に形成されるハイサイドトランジスタと、
前記ハイサイドトランジスタを囲むトレンチと、
トレンチを埋める第1の絶縁体と、
前記トレンチの周りの前記半導体基板の表面の第2の領域に形成されるローサイドトランジスタと、を備え、
前記ローサイドトランジスタが形成される前記第2の領域と前記半導体基板の裏面とを繋ぐ側面が露出している
ことを特徴とする半導体装置。 - 半導体基板と、
前記半導体基板の表面の第1の領域に形成されるハイサイドトランジスタと、
前記ハイサイドトランジスタを囲むトレンチと、
トレンチを埋める第1の絶縁体と、
前記トレンチの周りの前記半導体基板の表面の第2の領域に形成されるローサイドトランジスタと、を備え
前記ローサイドトランジスタが形成される前記第2の領域の総面積は、
前記ハイサイドトランジスタが形成される前記第1の領域の総面積よりも大きい
ことを特徴とする半導体装置。 - 請求項1乃至2に記載の半導体装置であって、
前記ローサイドトランジスタは、
前記トレンチを囲むように配置される
ことを特徴とする半導体装置。 - 請求項1乃至2に記載の半導体装置であって、
前記第1の領域は、
四角形であり、
前記ローサイドトランジスタは、
前記第1の領域の1組の対辺にそれぞれ隣接する2つの領域に形成される
ことを特徴とする半導体装置。 - 請求項4に記載の半導体装置であって、
前記第1の領域及び前記第2の領域が配置される方向について、前記第1の領域の1組の対辺にそれぞれ隣接する2つの領域のそれぞれの幅は等しい
ことを特徴とする半導体装置。 - 請求項1乃至2に記載の半導体装置であって、
前記ハイサイドトランジスタは、
互いに離れた少なくとも2つの領域に形成され、
前記トレンチは、
前記ハイサイドトランジスタが形成される領域をそれぞれ囲み、
隣接する前記トレンチの間の距離は、
前記ハイサイドトランジスタが形成される領域が配置される方向の前記トレンチと前記半導体基板の端の間の距離よりも小さい
ことを特徴とする半導体装置。 - 請求項1乃至2に記載の半導体装置であって、
前記半導体基板は、
支持基板、第2の絶縁体、及びP型半導体が積層されて構成され、
前記第1の絶縁体は、
前記第2の絶縁体と接する
ことを特徴とする半導体装置。 - 請求項1乃至2に記載の半導体装置であって、
前記ローサイドトランジスタ及び前記ハイサイドトランジスタは、
NMOSトランジスタ又はIGBTである
ことを特徴とする半導体装置。 - 請求項1乃至2に記載の半導体装置であって、
前記ローサイドトランジスタの熱破壊エネルギーは、
前記ハイサイドトランジスタの熱破壊エネルギーよりも大きい
ことを特徴とする半導体装置。 - 請求項1乃至2に記載の半導体装置であって、
前記ローサイドトランジスタ及び前記ハイサイドトランジスタは、
30ボルト以上の耐圧を有する
ことを特徴とする半導体装置。
Priority Applications (5)
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JP2016032697A JP6584977B2 (ja) | 2016-02-24 | 2016-02-24 | 半導体装置 |
PCT/JP2017/000701 WO2017145542A1 (ja) | 2016-02-24 | 2017-01-12 | 半導体装置 |
US16/075,009 US10403620B2 (en) | 2016-02-24 | 2017-01-12 | Semiconductor device |
CN201780004060.2A CN108352359B (zh) | 2016-02-24 | 2017-01-12 | 半导体装置 |
DE112017000174.9T DE112017000174B4 (de) | 2016-02-24 | 2017-01-12 | Halbleitervorrichtung |
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JP2016032697A JP6584977B2 (ja) | 2016-02-24 | 2016-02-24 | 半導体装置 |
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JP6584977B2 JP6584977B2 (ja) | 2019-10-02 |
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JP (1) | JP6584977B2 (ja) |
CN (1) | CN108352359B (ja) |
DE (1) | DE112017000174B4 (ja) |
WO (1) | WO2017145542A1 (ja) |
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US9893070B2 (en) | 2016-06-10 | 2018-02-13 | Taiwan Semiconductor Manufacturing Company, Ltd. | Semiconductor device and fabrication method therefor |
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- 2017-01-12 US US16/075,009 patent/US10403620B2/en active Active
- 2017-01-12 DE DE112017000174.9T patent/DE112017000174B4/de active Active
- 2017-01-12 CN CN201780004060.2A patent/CN108352359B/zh active Active
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Patent Citations (7)
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JPH11214710A (ja) * | 1998-01-22 | 1999-08-06 | Sansha Electric Mfg Co Ltd | 電力用半導体装置 |
JP2006049341A (ja) * | 2004-07-30 | 2006-02-16 | Renesas Technology Corp | 半導体装置およびその製造方法 |
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WO2016017068A1 (ja) * | 2014-07-30 | 2016-02-04 | パナソニックIpマネジメント株式会社 | 半導体装置 |
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JP6584977B2 (ja) | 2019-10-02 |
US20190043851A1 (en) | 2019-02-07 |
CN108352359B (zh) | 2022-03-04 |
DE112017000174T5 (de) | 2018-07-05 |
WO2017145542A1 (ja) | 2017-08-31 |
CN108352359A (zh) | 2018-07-31 |
US10403620B2 (en) | 2019-09-03 |
DE112017000174B4 (de) | 2022-08-04 |
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