JP2020526024A - 半導体パワーデバイス - Google Patents
半導体パワーデバイス Download PDFInfo
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- JP2020526024A JP2020526024A JP2019571990A JP2019571990A JP2020526024A JP 2020526024 A JP2020526024 A JP 2020526024A JP 2019571990 A JP2019571990 A JP 2019571990A JP 2019571990 A JP2019571990 A JP 2019571990A JP 2020526024 A JP2020526024 A JP 2020526024A
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 126
- 239000000758 substrate Substances 0.000 claims abstract description 52
- 210000000746 body region Anatomy 0.000 claims description 26
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 7
- 229920005591 polysilicon Polymers 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical class 0.000 claims description 4
- 230000005669 field effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 abstract description 13
- 239000010410 layer Substances 0.000 description 31
- 239000002184 metal Substances 0.000 description 16
- 239000000969 carrier Substances 0.000 description 5
- 108091006149 Electron carriers Proteins 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000005380 borophosphosilicate glass Substances 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000005360 phosphosilicate glass Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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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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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
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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
- H01L29/02—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
- H01L29/0603—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
- 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]
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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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- 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
- 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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/423—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
- H01L29/42312—Gate electrodes for field effect devices
- H01L29/42316—Gate electrodes for field effect devices for field-effect transistors
- H01L29/4232—Gate electrodes for field effect devices for field-effect transistors with insulated gate
- H01L29/42356—Disposition, e.g. buried gate electrode
- H01L29/4236—Disposition, e.g. buried gate electrode within a trench, e.g. trench gate electrode, groove gate electrode
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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
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
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- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Electrodes Of Semiconductors (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
前記半導体基板上に形成された金属酸化物半導体型電界効果トランジスタMOSFET領域であって、少なくとも1つのMOSFETセルを含むMOSFET領域と、
前記半導体基板に位置する少なくとも1つのコレクタ領域であって、前記コレクタ領域と前記MOSFETセルとが絶縁ゲートバイポーラトランジスタを形成するコレクタ領域とを含む。
Claims (10)
- 半導体基板と、
前記半導体基板上に形成された金属酸化物半導体型電界効果トランジスタMOSFET領域であって、少なくとも1つのMOSFETセルを含み、前記MOSFETセルは、前記半導体基板の底部に位置する第1の導電型のドレイン領域であって、前記半導体基板の底部から引き出され、ドレイン電圧に接続されている第1の導電型のドレイン領域と、前記半導体基板に位置する第1の導電型のソース領域と第2の導電型のボディ領域であって、前記半導体基板の頂部から引き出され、ソース電圧に接続されている第1の導電型のソース領域と第2の導電型のボディ領域と、前記半導体基板に位置する、前記ドレイン領域と前記ボディ領域との間に介在する第1の導電型のドリフト領域と、前記ボディ領域内に位置し、且つ前記ソース領域と前記ドリフト領域との間に介在する電流チャネルと、前記電流チャネルのオン/オフを制御するゲート構造とを含むMOSFET領域と、
前記半導体基板に位置する少なくとも1つの第2の導電型のコレクタ領域であって、前記ドレイン領域の上に位置し、前記ドレイン領域と接続してpn接合構造を形成し、前記コレクタ領域と前記MOSFETセルとが絶縁ゲートバイポーラトランジスタを形成するコレクタ領域とを含む、半導体パワーデバイス。 - 前記コレクタ領域は前記MOSFET領域を環状に取り囲むか、或いは前記コレクタ領域は前記MOSFET領域の一側又は両側に位置する、請求項1に記載の半導体パワーデバイス。
- 前記コレクタ領域と前記MOSFET領域との間に分圧構造が設けられ、前記分圧構造は、フィールドプレート、フィールドリミティングリング、及びポリシリコンが充填されたトレンチ構造のうちの1つである、請求項1に記載の半導体パワーデバイス。
- 前記第1の導電型はn型であり、前記第2の導電型はp型であり、前記コレクタ領域と、前記ドリフト領域と、前記ボディ領域と、前記ソース領域との間はp−n−p−n構造に形成されている、請求項1に記載の半導体パワーデバイス。
- 前記半導体基板内には、前記半導体基板内に凹んでいるゲートトレンチが設けられ、前記ゲート構造は前記ゲートトレンチに設けられ、前記ゲート構造はゲート誘電体層と制御ゲートとを含む、請求項1に記載の半導体パワーデバイス。
- 前記ゲート構造は絶縁誘電体層とシールドゲートとを更に含み、前記シールドゲートは前記絶縁誘電体層によって前記制御ゲートと前記ドリフト領域とから分離される、請求項5に記載の半導体パワーデバイス。
- 前記制御ゲートは前記ゲートトレンチの上部の両側に位置する、請求項6に記載の半導体パワーデバイス。
- 前記シールドゲートは前記ソース領域と電気的に接続され、且つソース電圧に接続されている、請求項6に記載の半導体パワーデバイス。
- 前記ドレイン領域にドレイン電圧を印加するとき、前記コレクタ領域と前記ドレイン領域とにより形成されたpn接合構造はトンネリングする、請求項1に記載の半導体パワーデバイス。
- 前記ボディ領域の下方に位置する第2の導電型の柱状ドープ領域を更に含み、前記柱状ドープ領域のドープ不純物と前記ドリフト領域のドープ不純物とは電荷バランスを形成する、請求項1に記載の半導体パワーデバイス。
Applications Claiming Priority (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711489817.X | 2017-12-29 | ||
CN201711489817.XA CN109994538A (zh) | 2017-12-29 | 2017-12-29 | 一种半导体超结功率器件 |
CN201711481071.8A CN109994470A (zh) | 2017-12-29 | 2017-12-29 | 一种半导体功率器件 |
CN201711481167.4 | 2017-12-29 | ||
CN201711489809.5A CN109994549B (zh) | 2017-12-29 | 2017-12-29 | 半导体功率器件 |
CN201711481167.4A CN109994468B (zh) | 2017-12-29 | 2017-12-29 | 半导体超结功率器件 |
CN201711481071.8 | 2017-12-29 | ||
CN201711489809.5 | 2017-12-29 | ||
PCT/CN2018/117414 WO2019128587A1 (zh) | 2017-12-29 | 2018-11-26 | 半导体功率器件 |
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JP2020526024A true JP2020526024A (ja) | 2020-08-27 |
JP6990890B2 JP6990890B2 (ja) | 2022-01-12 |
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US (1) | US11189698B2 (ja) |
JP (1) | JP6990890B2 (ja) |
KR (1) | KR102246501B1 (ja) |
WO (1) | WO2019128587A1 (ja) |
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JP7482571B2 (ja) | 2021-12-15 | 2024-05-14 | 蘇州東微半導体股▲ふん▼有限公司 | Igbtデバイス |
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CN103579231A (zh) | 2012-07-26 | 2014-02-12 | 无锡维赛半导体有限公司 | 半导体功率器件 |
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- 2018-11-26 WO PCT/CN2018/117414 patent/WO2019128587A1/zh active Application Filing
- 2018-11-26 US US16/645,016 patent/US11189698B2/en active Active
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JP7482571B2 (ja) | 2021-12-15 | 2024-05-14 | 蘇州東微半導体股▲ふん▼有限公司 | Igbtデバイス |
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US20200258983A1 (en) | 2020-08-13 |
KR20200028015A (ko) | 2020-03-13 |
US11189698B2 (en) | 2021-11-30 |
WO2019128587A1 (zh) | 2019-07-04 |
KR102246501B1 (ko) | 2021-04-30 |
JP6990890B2 (ja) | 2022-01-12 |
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