JP6686398B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP6686398B2 JP6686398B2 JP2015236999A JP2015236999A JP6686398B2 JP 6686398 B2 JP6686398 B2 JP 6686398B2 JP 2015236999 A JP2015236999 A JP 2015236999A JP 2015236999 A JP2015236999 A JP 2015236999A JP 6686398 B2 JP6686398 B2 JP 6686398B2
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- 239000004065 semiconductor Substances 0.000 title claims description 82
- 239000010410 layer Substances 0.000 claims description 121
- 239000000758 substrate Substances 0.000 claims description 54
- 230000002093 peripheral effect Effects 0.000 claims description 44
- 239000011229 interlayer Substances 0.000 claims description 29
- 229910052751 metal Inorganic materials 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 25
- 230000001681 protective effect Effects 0.000 claims description 11
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 34
- 229920005591 polysilicon Polymers 0.000 description 34
- 239000012535 impurity Substances 0.000 description 18
- 230000036413 temperature sense Effects 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 230000005684 electric field Effects 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000852 hydrogen donor Substances 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000386 donor Substances 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000005224 laser annealing Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- 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
- H01L29/42372—Gate electrodes for field effect devices for field-effect transistors with insulated gate characterised by the conducting layer, e.g. the length, the sectional shape or the lay-out
- H01L29/4238—Gate electrodes for field effect devices for field-effect transistors with insulated gate characterised by the conducting layer, e.g. the length, the sectional shape or the lay-out characterised by the surface lay-out
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/528—Geometry or layout of the interconnection structure
-
- 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
-
- 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
- H01L29/417—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
- H01L29/41708—Emitter or collector electrodes for bipolar transistors
-
- 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
-
- 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
- H01L29/68—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
-
- 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
-
- 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
- H01L29/402—Field plates
- H01L29/407—Recessed field plates, e.g. trench field plates, buried field plates
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- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Geometry (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Electrodes Of Semiconductors (AREA)
Description
[先行技術文献]
[特許文献]
[特許文献1] 特開2010−50211号公報
エミッタ電極はゲート配線層から離間して複数に分割されていてよい。
Claims (8)
- 半導体基板と、
前記半導体基板のおもて面側に設けられたゲート配線層と、
前記半導体基板のおもて面に設けられ、ゲート電極を有するゲート構造と、
前記ゲート構造を各々有する複数の素子領域と、
一の素子領域から他の素子領域へ延伸するゲートトレンチ部と、
ダミートレンチ部と
を備え、
前記ゲート配線層は、
前記半導体基板の外周に沿って設けられた、金属配線層である外周部と、
前記外周部から前記半導体基板の中央部に向かって延伸して設けられ、前記ゲート電極と電気的に接続する金属配線層である延伸部と
を有し、
前記ゲート配線層の前記延伸部は、2つの素子領域の間において前記外周部から前記中央部に向かう第1方向に延伸し、
前記ゲートトレンチ部は、
前記第1方向に直交する第2方向において延伸し、
前記ゲート配線層の前記延伸部の下方において前記第1方向にも延伸し、
前記第1方向に延伸する部分と前記第2方向に延伸する部分とが交差して格子状に設けられ、
前記ゲート電極は、前記ゲートトレンチ部に埋め込まれており、
前記ゲート配線層は、
前記素子領域の間の前記ゲートトレンチ部上において前記ゲート電極に電気的に接続し、
前記第1方向に延伸する前記ゲートトレンチ部の前記ゲート電極に直接接続し、
前記ダミートレンチ部は、前記素子領域の前記第2方向の端部まで少なくとも延伸する
半導体装置。 - 半導体基板と、
前記半導体基板のおもて面側に設けられたゲート配線層と、
前記半導体基板のおもて面に設けられ、ゲート電極を有するゲート構造と、
前記ゲート構造を各々有する複数の素子領域と、
一の素子領域から他の素子領域へ延伸するゲートトレンチ部と、
ダミートレンチ部と
を備え、
前記ゲート配線層は、
前記半導体基板の外周に沿って設けられた、金属配線層である外周部と、
前記外周部から前記半導体基板の中央部に向かって延伸して設けられ、前記ゲート電極と電気的に接続する金属配線層である延伸部と
を有し、
前記ゲート配線層の前記延伸部は、2つの素子領域の間において前記外周部から前記中央部に向かう第1方向に延伸し、
前記ゲートトレンチ部は、前記第1方向に直交する第2方向において延伸し、
前記ゲート電極は、前記ゲートトレンチ部に埋め込まれており、
前記ゲート配線層は、前記素子領域の間の前記ゲートトレンチ部上において前記ゲート電極に電気的に接続し、
前記ダミートレンチ部は、
前記素子領域の前記第2方向の端部まで少なくとも延伸し、
前記2つの素子領域の間において前記第1方向に延伸する前記ゲート配線層の下において、前記ゲート配線層を横切らない
半導体装置。 - 半導体基板と、
前記半導体基板のおもて面側に設けられたゲート配線層と、
前記半導体基板のおもて面側に設けられたp型のウェル領域と、
前記半導体基板のおもて面に設けられ、ゲート電極を有するゲート構造と、
前記ゲート構造を各々有する複数の素子領域と、
一の素子領域から他の素子領域へ延伸するゲートトレンチ部と、
ダミートレンチ部と
を備え、
前記ゲート配線層は、
前記半導体基板の外周に沿って設けられた、金属配線層である外周部と、
前記外周部から前記半導体基板の中央部に向かって延伸して設けられ、前記ゲート電極と電気的に接続する金属配線層である延伸部と
を有し、
前記ゲート配線層の前記延伸部は、2つの素子領域の間において前記外周部から前記中央部に向かう第1方向に延伸し、
前記ゲートトレンチ部は、前記第1方向に直交する第2方向において延伸し、
前記ゲート電極は、前記ゲートトレンチ部に埋め込まれており、
前記ゲート配線層は、前記素子領域の間の前記ゲートトレンチ部上において前記ゲート電極に電気的に接続し、
前記ダミートレンチ部は、前記素子領域の前記第2方向の端部まで少なくとも延伸し、
前記ウェル領域は、前記ゲート配線層の下に設けられている
半導体装置。 - 長手方向が前記第2方向と平行であるU字状に設けられる前記ゲートトレンチ部は、前記U字状の短手方向が前記ゲート配線層の下方において前記第1方向に延伸し、
前記ゲート配線層は、前記短手方向の前記ゲートトレンチ部における前記ゲート電極に直接接続する
請求項2または3に記載の半導体装置。 - 前記半導体基板と前記ゲート配線層との間に設けられる層間絶縁膜をさらに備え、
前記ゲートトレンチ部および前記ダミートレンチ部以外の領域において、前記半導体基板と前記層間絶縁膜とは直接接続し、前記層間絶縁膜は前記ゲート配線層と直接接する
請求項1または4に記載の半導体装置。 - 前記ゲート配線層の前記延伸部は、前記外周部における一辺から前記一辺に対向する他の一辺まで延伸して設けられる
請求項1から5のいずれか一項に記載の半導体装置。 - 前記ゲート構造上にエミッタ電極をさらに有し、
前記エミッタ電極は前記ゲート配線層から離間して複数に分割されている
請求項1から6のいずれか一項に記載の半導体装置。 - 前記ゲート配線層上に設けられた保護膜と、
前記保護膜により前記ゲート配線層から電気的に分離され、かつ、複数の前記エミッタ電極上において複数の前記エミッタ電極に電気的に接続された金属層と
をさらに備える
請求項7に記載の半導体装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2015236999A JP6686398B2 (ja) | 2015-12-03 | 2015-12-03 | 半導体装置 |
US15/333,193 US9991353B2 (en) | 2015-12-03 | 2016-10-25 | Semiconductor device |
US15/976,829 US10529814B2 (en) | 2015-12-03 | 2018-05-10 | Semiconductor device |
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---|---|---|---|
JP2015236999A JP6686398B2 (ja) | 2015-12-03 | 2015-12-03 | 半導体装置 |
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JP6686398B2 true JP6686398B2 (ja) | 2020-04-22 |
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Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9825128B2 (en) * | 2015-10-20 | 2017-11-21 | Maxpower Semiconductor, Inc. | Vertical power transistor with thin bottom emitter layer and dopants implanted in trenches in shield area and termination rings |
US10256331B2 (en) * | 2017-03-03 | 2019-04-09 | Pakal Technologies, Inc. | Insulated gate turn-off device having low capacitance and low saturation current |
JP6891560B2 (ja) * | 2017-03-15 | 2021-06-18 | 富士電機株式会社 | 半導体装置 |
KR102388147B1 (ko) * | 2017-05-08 | 2022-04-19 | 현대자동차주식회사 | Igbt 온도 센서 보정 장치 및 이를 이용한 온도센싱 보정 방법 |
US10396189B2 (en) | 2017-05-30 | 2019-08-27 | Fuji Electric Co., Ltd. | Semiconductor device |
JP7225562B2 (ja) * | 2017-05-30 | 2023-02-21 | 富士電機株式会社 | 半導体装置 |
CN109524396B (zh) * | 2017-09-20 | 2023-05-12 | 株式会社东芝 | 半导体装置 |
JP6835243B2 (ja) | 2017-10-18 | 2021-02-24 | 富士電機株式会社 | 半導体装置 |
JP7095303B2 (ja) | 2018-02-14 | 2022-07-05 | 富士電機株式会社 | 半導体装置 |
JP6969662B2 (ja) | 2018-02-14 | 2021-11-24 | 富士電機株式会社 | 半導体装置 |
JP6947281B2 (ja) * | 2018-02-14 | 2021-10-13 | 富士電機株式会社 | 半導体装置 |
JP7206652B2 (ja) * | 2018-03-30 | 2023-01-18 | 富士電機株式会社 | 半導体装置、半導体パッケージ、半導体モジュール、および半導体回路装置 |
CN110323273A (zh) | 2018-03-30 | 2019-10-11 | 富士电机株式会社 | 半导体装置、半导体封装、半导体模块及半导体电路装置 |
JP7099017B2 (ja) * | 2018-04-04 | 2022-07-12 | 富士電機株式会社 | 半導体装置 |
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