JP5902116B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
- Publication number
- JP5902116B2 JP5902116B2 JP2013061334A JP2013061334A JP5902116B2 JP 5902116 B2 JP5902116 B2 JP 5902116B2 JP 2013061334 A JP2013061334 A JP 2013061334A JP 2013061334 A JP2013061334 A JP 2013061334A JP 5902116 B2 JP5902116 B2 JP 5902116B2
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- Prior art keywords
- insulating layer
- semiconductor device
- field plate
- layer
- plate electrode
- Prior art date
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- 239000004065 semiconductor Substances 0.000 title claims description 52
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 9
- 229920005591 polysilicon Polymers 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 1
- 239000012212 insulator Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 15
- 230000015556 catabolic process Effects 0.000 description 10
- 239000000758 substrate Substances 0.000 description 7
- 125000004437 phosphorous atom Chemical group 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- -1 boron ions Chemical class 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- RLOWWWKZYUNIDI-UHFFFAOYSA-N phosphinic chloride Chemical compound ClP=O RLOWWWKZYUNIDI-UHFFFAOYSA-N 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-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
- 238000000151 deposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/63—Vertical IGFETs
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
- H10D30/028—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs
- H10D30/0291—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs of vertical DMOS [VDMOS] FETs
- H10D30/0295—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs of vertical DMOS [VDMOS] FETs using recessing of the source electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
- H10D30/028—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs
- H10D30/0291—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs of vertical DMOS [VDMOS] FETs
- H10D30/0297—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs of vertical DMOS [VDMOS] FETs using recessing of the gate electrodes, e.g. to form trench gate electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/64—Double-diffused metal-oxide semiconductor [DMOS] FETs
- H10D30/66—Vertical DMOS [VDMOS] FETs
- H10D30/668—Vertical DMOS [VDMOS] FETs having trench gate electrodes, e.g. UMOS transistors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/111—Field plates
- H10D64/117—Recessed field plates, e.g. trench field plates or buried field plates
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/20—Electrodes characterised by their shapes, relative sizes or dispositions
- H10D64/27—Electrodes not carrying the current to be rectified, amplified, oscillated or switched, e.g. gates
- H10D64/311—Gate electrodes for field-effect devices
- H10D64/411—Gate electrodes for field-effect devices for FETs
- H10D64/511—Gate electrodes for field-effect devices for FETs for IGFETs
- H10D64/514—Gate electrodes for field-effect devices for FETs for IGFETs characterised by the insulating layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/20—Electrodes characterised by their shapes, relative sizes or dispositions
- H10D64/23—Electrodes carrying the current to be rectified, amplified, oscillated or switched, e.g. sources, drains, anodes or cathodes
- H10D64/251—Source or drain electrodes for field-effect devices
- H10D64/256—Source or drain electrodes for field-effect devices for lateral devices wherein the source or drain electrodes are recessed in semiconductor bodies
Landscapes
- Electrodes Of Semiconductors (AREA)
Description
本発明のいくつかの実施の形態を説明したが、これらの実施の形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら新規な実施の形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施の形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。
Claims (5)
- 半導体素子が形成される素子領域、及び前記素子領域を挟む周辺領域を備え、
前記周辺領域は、
半導体層の第1位置から前記第1位置より上方の第2位置まで形成された第1絶縁層と、
前記半導体層の前記第2位置から前記第2位置より上方の第3位置まで形成されると共に、前記第1絶縁層よりも薄く且つ前記第1絶縁層の内径よりも大きい内径を有する第2絶縁層と、
前記第1絶縁層及び前記第2絶縁層の内側に設けられ、前記第2位置より上方に設けられた凹部を有するフィールドプレート電極と、
前記凹部に設けられ、前記フィールドプレート電極とは異なる材料により構成された第1の層と
を備えることを特徴とする半導体装置。 - 前記フィールドプレート電極は、ポリシリコンにより構成される
ことを特徴とする請求項1記載の半導体装置。 - 前記第1の層は、絶縁物により構成される
ことを特徴とする請求項1又は請求項2記載の半導体装置。 - 前記第1の層は、金属により構成される
ことを特徴とする請求項1又は請求項2記載の半導体装置。 - 前記半導体素子は、MOSFETである
ことを特徴とする請求項1乃至請求項4のいずれか1項記載の半導体装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013061334A JP5902116B2 (ja) | 2013-03-25 | 2013-03-25 | 半導体装置 |
CN201310322233.9A CN104078503A (zh) | 2013-03-25 | 2013-07-29 | 半导体装置 |
US14/017,231 US8981462B2 (en) | 2013-03-25 | 2013-09-03 | Semiconductor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013061334A JP5902116B2 (ja) | 2013-03-25 | 2013-03-25 | 半導体装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014187226A JP2014187226A (ja) | 2014-10-02 |
JP5902116B2 true JP5902116B2 (ja) | 2016-04-13 |
Family
ID=51568531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013061334A Active JP5902116B2 (ja) | 2013-03-25 | 2013-03-25 | 半導体装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8981462B2 (ja) |
JP (1) | JP5902116B2 (ja) |
CN (1) | CN104078503A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11575039B2 (en) | 2020-03-19 | 2023-02-07 | Kabushiki Kaisha Toshiba | Semiconductor device |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10395970B2 (en) | 2013-12-05 | 2019-08-27 | Vishay-Siliconix | Dual trench structure |
JP6914190B2 (ja) * | 2015-04-27 | 2021-08-04 | ローム株式会社 | 半導体装置および半導体装置の製造方法 |
US9673314B2 (en) * | 2015-07-08 | 2017-06-06 | Vishay-Siliconix | Semiconductor device with non-uniform trench oxide layer |
US9711391B1 (en) | 2016-01-20 | 2017-07-18 | Taiwan Semiconductor Manufacturing Co., Ltd. | Semiconductor device and manufacturing method thereof |
TWI697092B (zh) * | 2016-08-08 | 2020-06-21 | 聯華電子股份有限公司 | 半導體靜電放電保護電路、半導體靜電放電保護元件及其佈局結構 |
US11476357B2 (en) * | 2016-09-28 | 2022-10-18 | Ecole Polytechnique Federale De Lausanne (Epfl) | Semiconductor device comprising a three-dimensional field plate |
JP6626021B2 (ja) * | 2017-02-15 | 2019-12-25 | トヨタ自動車株式会社 | 窒化物半導体装置 |
CN107221500A (zh) * | 2017-05-10 | 2017-09-29 | 无锡同方微电子有限公司 | 双沟槽场效应管及其制备方法 |
KR102724887B1 (ko) * | 2018-12-18 | 2024-11-01 | 삼성전기주식회사 | 커패시터 부품 |
CN118629872B (zh) * | 2024-08-09 | 2024-11-15 | 北京中科新微特科技开发股份有限公司 | 半导体器件及其制备方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4398339A (en) * | 1977-04-15 | 1983-08-16 | Supertex, Inc. | Fabrication method for high power MOS device |
US5225698A (en) * | 1989-08-12 | 1993-07-06 | Samsung Electronics Co., Inc. | Semi-conductor device with stacked trench capacitor |
JPH07131010A (ja) | 1993-11-05 | 1995-05-19 | Yokogawa Electric Corp | 半導体集積回路 |
US6649975B2 (en) | 2000-11-16 | 2003-11-18 | Silicon Semiconductor Corporation | Vertical power devices having trench-based electrodes therein |
JP2002158355A (ja) | 2000-11-20 | 2002-05-31 | Nec Kansai Ltd | 半導体装置およびその製造方法 |
JP4051971B2 (ja) * | 2002-03-15 | 2008-02-27 | 株式会社デンソー | 炭化珪素半導体装置およびその製造方法 |
US7371641B2 (en) | 2004-10-29 | 2008-05-13 | International Rectifier Corporation | Method of making a trench MOSFET with deposited oxide |
JP4930894B2 (ja) * | 2005-05-13 | 2012-05-16 | サンケン電気株式会社 | 半導体装置 |
JP2007129134A (ja) | 2005-11-07 | 2007-05-24 | Nec Corp | 電界効果トランジスタ |
JP5569162B2 (ja) | 2010-06-10 | 2014-08-13 | 富士電機株式会社 | 半導体装置および半導体装置の製造方法 |
JP5627494B2 (ja) | 2011-02-09 | 2014-11-19 | 株式会社東芝 | 半導体装置およびその製造方法 |
US8823087B2 (en) * | 2012-03-15 | 2014-09-02 | Infineon Technologies Austria Ag | Semiconductor device including auxiliary structure and methods for manufacturing a semiconductor device |
-
2013
- 2013-03-25 JP JP2013061334A patent/JP5902116B2/ja active Active
- 2013-07-29 CN CN201310322233.9A patent/CN104078503A/zh active Pending
- 2013-09-03 US US14/017,231 patent/US8981462B2/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11575039B2 (en) | 2020-03-19 | 2023-02-07 | Kabushiki Kaisha Toshiba | Semiconductor device |
Also Published As
Publication number | Publication date |
---|---|
JP2014187226A (ja) | 2014-10-02 |
US20140284700A1 (en) | 2014-09-25 |
US8981462B2 (en) | 2015-03-17 |
CN104078503A (zh) | 2014-10-01 |
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