JP2020150025A - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP2020150025A JP2020150025A JP2019043941A JP2019043941A JP2020150025A JP 2020150025 A JP2020150025 A JP 2020150025A JP 2019043941 A JP2019043941 A JP 2019043941A JP 2019043941 A JP2019043941 A JP 2019043941A JP 2020150025 A JP2020150025 A JP 2020150025A
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 103
- 239000012535 impurity Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 2
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 150000001721 carbon Chemical group 0.000 claims 1
- 239000010410 layer Substances 0.000 description 83
- 239000011229 interlayer Substances 0.000 description 28
- 238000012986 modification Methods 0.000 description 13
- 230000004048 modification Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 7
- 238000013459 approach Methods 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 5
- 239000013256 coordination polymer Substances 0.000 description 5
- 230000005684 electric field Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
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- 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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- H01L29/0619—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] with a supplementary region doped oppositely to or in rectifying contact with the semiconductor containing or contacting region, e.g. guard rings with PN or Schottky junction
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- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/7801—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
- H01L29/7802—Vertical DMOS transistors, i.e. VDMOS transistors
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- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims (7)
- 第1導電形の第1半導体層を含む半導体部と、
前記半導体部の裏面上に設けられた第1電極と、
前記半導体部の表面上に設けられた第2電極と、
前記半導体部の表面上において、前記第2電極から離間した位置に設けられた第3電極と、
前記第2電極と前記第3電極とをつなぎ、前記第1半導体層の材料よりも高抵抗率の材料を含む第1膜と、
前記半導体部と前記第1膜との間に設けられた絶縁性の第2膜と、
を備え、
前記半導体部は、前記第2電極と前記第1半導体層との間に選択的に設けられた第2導電形の第2半導体層と、前記第3電極と前記第1半導体層との間に選択的に設けられ、前記第1半導体層の第1導電形不純物よりも高濃度の第1導電形不純物を含む第1導電形の第3半導体層と、をさらに含み、
前記第2膜は、前記第1電極から前記第2電極に向かう第1方向における第1膜厚を有する第1膜厚部と、前記第1膜厚よりも厚い前記第1方向における第2膜厚を有する第2膜厚部と、を含み、
前記第1膜厚部および前記第2膜厚部は、それぞれ前記第2電極を囲むように設けられ、
前記第1膜は、前記第2膜厚から前記第1膜厚を差し引いた厚さよりも薄い膜厚を有し、前記第1膜厚部の表面および前記第2膜厚部の表面に沿って延在した半導体装置。 - 前記第1膜は、酸素原子、窒素原子および炭素原子のうちの少なくともいずれか1つと、シリコン原子と、を含み、1×107から1×1014オーム・センチメートルの範囲の比抵抗を有し、前記第1方向における0.5から2マイクロメートルの膜厚を有する請求項1記載の半導体装置。
- 前記第1膜厚部および前記第2膜厚部は、それぞれ複数設けられ、前記第2電極から前記第3電極に向かう第2方向に交互に配置される請求項1または2に記載の半導体装置。
- 前記複数の第2膜厚部は、前記第3電極により近い位置に配置された第2膜厚部がより狭い前記第2方向の幅を有するように設けられる請求項3記載の半導体装置。
- 前記複数の第1膜厚部は、前記第3電極により近い位置に配置された第1膜厚部がより狭い前記第2方向の幅を有するように設けられる請求項3記載の半導体装置。
- 前記複数の第2膜厚部は、前記第3電極により近い位置に配置された第2膜厚部がより厚い前記第2膜厚を有するように設けられる請求項3〜5のいずれか1つに記載の半導体装置。
- 前記複数の第1膜厚部は、前記第2方向の幅が同じになるように設けられる請求項3〜6のいずれか1つに記載の半導体装置。
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JP2019043941A JP7241574B2 (ja) | 2019-03-11 | 2019-03-11 | 半導体装置 |
US16/540,108 US10872958B2 (en) | 2019-03-11 | 2019-08-14 | Semiconductor device |
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JP7204953B2 (ja) * | 2019-12-23 | 2023-01-16 | 三菱電機株式会社 | 半導体装置および半導体モジュール |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6267871A (ja) * | 1985-09-20 | 1987-03-27 | Toshiba Corp | 半導体装置 |
JPS6343380A (ja) * | 1986-08-08 | 1988-02-24 | シリコニクス インコ−ポレイテツド | ダイオ−ドブレ−クダウン電圧を増加させる為の高シ−ト抵抗多結晶シリコン膜 |
JP2000312012A (ja) * | 1999-02-25 | 2000-11-07 | Toshiba Corp | 半導体装置及びその製造方法 |
US20120292698A1 (en) * | 2011-05-16 | 2012-11-22 | Moon Nam-Chil | Lateral double diffused metal oxide semiconductor device and method of manufacturing the same |
JP2015109421A (ja) * | 2013-10-21 | 2015-06-11 | パナソニックIpマネジメント株式会社 | 半導体装置及びその製造方法 |
JP2016225425A (ja) * | 2015-05-29 | 2016-12-28 | サンケン電気株式会社 | 半導体装置 |
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US6525390B2 (en) * | 2000-05-18 | 2003-02-25 | Fuji Electric Co., Ltd. | MIS semiconductor device with low on resistance and high breakdown voltage |
JP5790214B2 (ja) * | 2010-09-09 | 2015-10-07 | 株式会社デンソー | 横型の絶縁ゲート型バイポーラトランジスタ |
JP5637188B2 (ja) * | 2011-09-27 | 2014-12-10 | 株式会社デンソー | 横型素子を有する半導体装置 |
JP6344137B2 (ja) | 2014-08-19 | 2018-06-20 | 富士電機株式会社 | 半導体装置及びその製造方法 |
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- 2019-03-11 JP JP2019043941A patent/JP7241574B2/ja active Active
- 2019-08-14 US US16/540,108 patent/US10872958B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6267871A (ja) * | 1985-09-20 | 1987-03-27 | Toshiba Corp | 半導体装置 |
JPS6343380A (ja) * | 1986-08-08 | 1988-02-24 | シリコニクス インコ−ポレイテツド | ダイオ−ドブレ−クダウン電圧を増加させる為の高シ−ト抵抗多結晶シリコン膜 |
JP2000312012A (ja) * | 1999-02-25 | 2000-11-07 | Toshiba Corp | 半導体装置及びその製造方法 |
US20120292698A1 (en) * | 2011-05-16 | 2012-11-22 | Moon Nam-Chil | Lateral double diffused metal oxide semiconductor device and method of manufacturing the same |
JP2015109421A (ja) * | 2013-10-21 | 2015-06-11 | パナソニックIpマネジメント株式会社 | 半導体装置及びその製造方法 |
JP2016225425A (ja) * | 2015-05-29 | 2016-12-28 | サンケン電気株式会社 | 半導体装置 |
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JP7241574B2 (ja) | 2023-03-17 |
US10872958B2 (en) | 2020-12-22 |
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