JP6783708B2 - 半導体装置 - Google Patents
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- H10D30/66—Vertical DMOS [VDMOS] FETs
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- H—ELECTRICITY
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- H01L24/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L24/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L24/30—Structure, shape, material or disposition of the layer connectors prior to the connecting process of a plurality of layer connectors
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- 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
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- 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
- H10D64/516—Gate electrodes for field-effect devices for FETs for IGFETs characterised by the insulating layers the thicknesses being non-uniform
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- H10D84/01—Manufacture or treatment
- H10D84/0123—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs
- H10D84/0126—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs
- H10D84/0149—Manufacturing their interconnections or electrodes, e.g. source or drain electrodes
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- H10D84/01—Manufacture or treatment
- H10D84/02—Manufacture or treatment characterised by using material-based technologies
- H10D84/03—Manufacture or treatment characterised by using material-based technologies using Group IV technology, e.g. silicon technology or silicon-carbide [SiC] technology
- H10D84/038—Manufacture or treatment characterised by using material-based technologies using Group IV technology, e.g. silicon technology or silicon-carbide [SiC] technology using silicon technology, e.g. SiGe
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- H10D84/101—Integrated devices comprising main components and built-in components, e.g. IGBT having built-in freewheel diode
- H10D84/141—VDMOS having built-in components
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Description
以下に、第1実施形態に係る半導体装置の構成を説明する。
図6に示すように、第1実施形態に係る半導体装置の製造方法は、フロントエンド工程S1と、バックエンド工程S2とを有している。フロントエンド工程S1においては、図7及び図8に示すように、半導体基板SUBと、ゲート絶縁膜GOと、ゲート電極GEとが形成される。
まず、第1実施形態に係る半導体装置の一般的な効果を説明する。第1実施形態に係る半導体装置においては、第1導電膜FCLが、第2配線WL2と絶縁されながら対向している。また、第1実施形態に係る半導体装置においては、第1導電膜FCLがドレイン領域DRAに電気的に接続されており、第2配線WL2がソース領域SRと電気的に接続されている。すなわち、第1実施形態に係る半導体装置においては、ソースドレイン間容量Cが平面視において素子領域ERの内側に配置されている。そのため、第1実施形態に係る半導体装置においては、ソースドレイン間容量を形成するために、チップ面積を大きくする必要がない。
以下に、第2実施形態に係る半導体装置の構成を説明する。以下においては、第1実施形態に係る半導体装置の構成と異なる点について主に説明し、重複する説明は繰り返さない。
以下に、第3実施形態に係る半導体装置の構成を説明する。以下においては、第2実施形態に係る半導体装置の構成と異なる点について主に説明し、重複する説明は繰り返さない。
Claims (12)
- 第1面と、前記第1面の反対面である第2面とを有する半導体基板と、
前記第1面の上に配置される第1配線及び第2配線と、
前記第1配線に電気的に接続される第1導電膜と、
ゲート電極とを備え、
前記半導体基板は、前記第1面に位置する第1導電型のソース領域と、前記第2面に位置する前記第1導電型のドレイン領域と、前記ドレイン領域の上に位置する前記第1導電型のドリフト領域と、前記ソース領域と前記ドリフト領域とにより挟み込まれる前記第1導電型の反対の導電型である第2導電型のボディ領域とを有し、
前記ドリフト領域は、平面視において前記ボディ領域を取り囲むように配置され、
前記第1配線は、平面視において前記ドリフト領域と前記ボディ領域との境界を跨ぐように配置され、かつ前記ドリフト領域に電気的に接続される第1部分を有し、
前記ゲート電極は、前記ソース領域と前記ドリフト領域とにより挟み込まれる前記ボディ領域と絶縁されながら対向し、
前記第2配線は、前記ソース領域と電気的に接続され、
前記第1導電膜は、前記第2配線と絶縁されながら対向する、半導体装置。 - 前記境界を跨ぐように配置され、かつ前記ゲート電極に電気的に接続される第2導電膜をさらに備える、請求項1に記載の半導体装置。
- 前記第2導電膜は、前記境界に沿って延在する、請求項2に記載の半導体装置。
- 前記第2導電膜は、平面視において、前記第1部分と重なるように配置される、請求項2に記載の半導体装置。
- 前記第2導電膜は、前記ドレイン領域の上に位置する第1端と、前記第1端の反対側の端である第2端とを有し、
前記境界と前記第1端との距離は、3μm以上であり、
前記境界と前記第2端との距離は、3μm以上である、請求項2に記載の半導体装置。 - 前記第1導電膜と前記第2導電膜とは、同一層内に位置し、かつ同一材料により構成される、請求項2に記載の半導体装置。
- 前記第1面の上に配置され、かつ前記ゲート電極に電気的に接続される第3配線をさらに備え、
前記第3配線は、前記境界を跨ぎ、かつ前記境界に沿って延在し、
前記第3配線は、第3端と、前記第3端から離間して配置される第4端とを有し、
前記第1部分は、平面視において前記第3端と前記第4端との間を通過する、請求項2に記載の半導体装置。 - 前記第3配線は、前記第3端及び前記第4端において、前記第2導電膜に電気的に接続される、請求項7に記載の半導体装置。
- 前記第1面の上に配置される層間絶縁膜をさらに備え、
前記層間絶縁膜中には、前記第2導電膜が埋め込まれる少なくとも1以上の溝が設けられる、請求項2に記載の半導体装置。 - 前記溝の数は複数であり、
前記溝の幅を互いに隣接する前記溝の間隔で除した値は、0.5以上1以下である、請求項9に記載の半導体装置。 - 前記溝の前記幅は、0.2μm以上0.4μm以下である、請求項10に記載の半導体装置。
- 前記第2導電膜は、一体に形成されている、請求項2に記載の半導体装置。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017117572A JP6783708B2 (ja) | 2017-06-15 | 2017-06-15 | 半導体装置 |
US15/956,611 US10600904B2 (en) | 2017-06-15 | 2018-04-18 | Semiconductor device |
TW107115867A TWI776892B (zh) | 2017-06-15 | 2018-05-10 | 半導體裝置 |
EP18177155.1A EP3416187A1 (en) | 2017-06-15 | 2018-06-12 | Vertical mosfet with additional source-drain capacitance |
CN201820923789.1U CN208538858U (zh) | 2017-06-15 | 2018-06-14 | 半导体器件 |
KR1020180068081A KR102470036B1 (ko) | 2017-06-15 | 2018-06-14 | 반도체 장치 |
CN201810613343.3A CN109148446B (zh) | 2017-06-15 | 2018-06-14 | 半导体器件 |
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JP2017117572A JP6783708B2 (ja) | 2017-06-15 | 2017-06-15 | 半導体装置 |
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JP2020176708A Division JP6999776B2 (ja) | 2020-10-21 | 2020-10-21 | 半導体装置及び半導体装置の製造方法 |
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JP6783708B2 true JP6783708B2 (ja) | 2020-11-11 |
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US (1) | US10600904B2 (ja) |
EP (1) | EP3416187A1 (ja) |
JP (1) | JP6783708B2 (ja) |
KR (1) | KR102470036B1 (ja) |
CN (2) | CN109148446B (ja) |
TW (1) | TWI776892B (ja) |
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JP7117260B2 (ja) * | 2019-03-18 | 2022-08-12 | ルネサスエレクトロニクス株式会社 | 半導体装置とその製造方法 |
JP7248541B2 (ja) * | 2019-08-23 | 2023-03-29 | 株式会社東芝 | 半導体装置 |
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US5998833A (en) | 1998-10-26 | 1999-12-07 | North Carolina State University | Power semiconductor devices having improved high frequency switching and breakdown characteristics |
GB0005650D0 (en) * | 2000-03-10 | 2000-05-03 | Koninkl Philips Electronics Nv | Field-effect semiconductor devices |
JP2004022644A (ja) * | 2002-06-13 | 2004-01-22 | Toyota Central Res & Dev Lab Inc | Mosfet |
US7348656B2 (en) * | 2005-09-22 | 2008-03-25 | International Rectifier Corp. | Power semiconductor device with integrated passive component |
JP5612268B2 (ja) * | 2008-03-28 | 2014-10-22 | 株式会社東芝 | 半導体装置及びdc−dcコンバータ |
TWI406393B (zh) * | 2010-08-30 | 2013-08-21 | Sinopower Semiconductor Inc | 具有額外電容結構之半導體元件及其製作方法 |
JP2012244071A (ja) * | 2011-05-23 | 2012-12-10 | Semiconductor Components Industries Llc | 絶縁ゲート型半導体装置 |
US8796745B2 (en) * | 2011-07-05 | 2014-08-05 | Texas Instruments Incorporated | Monolithically integrated active snubber |
US8664718B2 (en) * | 2011-11-30 | 2014-03-04 | Taiwan Semiconductor Manufacturing Company, Ltd. | Power MOSFETs and methods for forming the same |
US9356133B2 (en) * | 2012-02-01 | 2016-05-31 | Texas Instruments Incorporated | Medium voltage MOSFET device |
JP5718265B2 (ja) * | 2012-03-27 | 2015-05-13 | ルネサスエレクトロニクス株式会社 | 半導体装置および半導体装置の製造方法 |
JP6284421B2 (ja) * | 2014-05-09 | 2018-02-28 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
JP2016062981A (ja) * | 2014-09-16 | 2016-04-25 | 株式会社東芝 | 半導体装置及びその製造方法 |
US9627328B2 (en) * | 2014-10-09 | 2017-04-18 | Infineon Technologies Americas Corp. | Semiconductor structure having integrated snubber resistance |
JP6462367B2 (ja) * | 2015-01-13 | 2019-01-30 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
JP6509621B2 (ja) * | 2015-04-22 | 2019-05-08 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
JP6560059B2 (ja) * | 2015-08-20 | 2019-08-14 | ルネサスエレクトロニクス株式会社 | 半導体装置およびその製造方法 |
JP6260605B2 (ja) * | 2015-11-19 | 2018-01-17 | トヨタ自動車株式会社 | 半導体装置 |
JP6602698B2 (ja) * | 2016-03-11 | 2019-11-06 | ルネサスエレクトロニクス株式会社 | 半導体装置及びその製造方法 |
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- 2018-05-10 TW TW107115867A patent/TWI776892B/zh active
- 2018-06-12 EP EP18177155.1A patent/EP3416187A1/en not_active Withdrawn
- 2018-06-14 KR KR1020180068081A patent/KR102470036B1/ko active Active
- 2018-06-14 CN CN201810613343.3A patent/CN109148446B/zh active Active
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Publication number | Publication date |
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CN109148446A (zh) | 2019-01-04 |
TW201906122A (zh) | 2019-02-01 |
US20180366575A1 (en) | 2018-12-20 |
JP2019004042A (ja) | 2019-01-10 |
CN208538858U (zh) | 2019-02-22 |
EP3416187A1 (en) | 2018-12-19 |
KR102470036B1 (ko) | 2022-11-24 |
CN109148446B (zh) | 2025-02-07 |
KR20180136901A (ko) | 2018-12-26 |
TWI776892B (zh) | 2022-09-11 |
US10600904B2 (en) | 2020-03-24 |
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