JP7815134B2 - 半導体装置 - Google Patents
半導体装置Info
- Publication number
- JP7815134B2 JP7815134B2 JP2022559130A JP2022559130A JP7815134B2 JP 7815134 B2 JP7815134 B2 JP 7815134B2 JP 2022559130 A JP2022559130 A JP 2022559130A JP 2022559130 A JP2022559130 A JP 2022559130A JP 7815134 B2 JP7815134 B2 JP 7815134B2
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- Prior art keywords
- region
- drain
- insulating film
- source
- semiconductor device
- Prior art date
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Classifications
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- 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]
- H10D30/601—Insulated-gate field-effect transistors [IGFET] having lightly-doped drain or source extensions, e.g. LDD IGFETs or DDD IGFETs
- H10D30/603—Insulated-gate field-effect transistors [IGFET] having lightly-doped drain or source extensions, e.g. LDD IGFETs or DDD IGFETs having asymmetry in the channel direction, e.g. lateral high-voltage MISFETs having drain offset region or extended drain IGFETs [EDMOS]
-
- 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
- H10D30/65—Lateral DMOS [LDMOS] FETs
-
- 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]
-
- 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]
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/10—Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
- H10D62/17—Semiconductor regions connected to electrodes not carrying current to be rectified, amplified or switched, e.g. channel regions
- H10D62/213—Channel regions of field-effect devices
- H10D62/221—Channel regions of field-effect devices of FETs
- H10D62/235—Channel regions of field-effect devices of FETs of IGFETs
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/10—Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
- H10D62/17—Semiconductor regions connected to electrodes not carrying current to be rectified, amplified or switched, e.g. channel regions
- H10D62/351—Substrate regions of field-effect devices
-
- 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
- H10D64/112—Field plates comprising multiple field plate segments
-
- 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
- H10D64/517—Gate electrodes for field-effect devices for FETs for IGFETs characterised by the conducting layers
- H10D64/519—Gate electrodes for field-effect devices for FETs for IGFETs characterised by the conducting layers characterised by their top-view geometrical layouts
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/10—Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
- H10D62/17—Semiconductor regions connected to electrodes not carrying current to be rectified, amplified or switched, e.g. channel regions
- H10D62/351—Substrate regions of field-effect devices
- H10D62/357—Substrate regions of field-effect devices of FETs
- H10D62/364—Substrate regions of field-effect devices of FETs of IGFETs
- H10D62/371—Inactive supplementary semiconductor regions, e.g. for preventing punch-through, improving capacity effect or leakage current
-
- 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
- H10D64/516—Gate electrodes for field-effect devices for FETs for IGFETs characterised by the insulating layers the thicknesses being non-uniform
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W10/00—Isolation regions in semiconductor bodies between components of integrated devices
- H10W10/01—Manufacture or treatment
- H10W10/031—Manufacture or treatment of isolation regions comprising PN junctions
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W10/00—Isolation regions in semiconductor bodies between components of integrated devices
- H10W10/30—Isolation regions comprising PN junctions
Landscapes
- Insulated Gate Type Field-Effect Transistor (AREA)
Description
2 半導体チップ
3 第1主面
21 ドレインウェル領域
22 ソースウェル領域
23 ドレイン領域
24 ソース領域
25 コンタクト領域
26 チャネル反転領域
30 ゲート絶縁膜
31 第1部分
32 第2部分
35 フィールド絶縁膜
40 ゲート電極
41 第1電極部
42 第2電極部
51 半導体装置
Claims (20)
- 主面を有するチップと、
前記主面の表層部に形成されたドレイン領域と、
前記ドレイン領域から間隔を空けて前記主面の表層部に形成されたソース領域と、
前記主面の表層部における前記ドレイン領域および前記ソース領域の間において前記ソース領域側に形成されるチャネル反転領域と、
前記主面の表層部において前記ドレイン領域および前記チャネル反転領域の間の領域に形成されるドリフト領域と、
前記主面の上で前記チャネル反転領域を被覆する第1部分、および、前記主面の上で前記ドリフト領域を被覆する第2部分を有するゲート絶縁膜と、
前記第1部分を被覆する第1電極部、および、前記第2部分を部分的に露出させるように前記第1電極部から前記第2部分の上に引き出された第2電極部を有するゲート電極と、を含み、
前記第1電極部が、前記ソース領域の一部に重なっている、半導体装置。 - 前記第2電極部は、前記ドレイン領域および前記ソース領域の対向方向に延び、前記第2部分を部分的に露出させる辺を有している、請求項1に記載の半導体装置。
- 前記第1電極部は、平面視において前記第1部分の全域を被覆している、請求項1または2に記載の半導体装置。
- 前記第2電極部は、平面視において前記第1部分から間隔を空けて前記第2部分を露出させている、請求項1~3のいずれか一項に記載の半導体装置。
- 前記第2電極部は、前記ゲート絶縁膜に関して前記第2部分のみを露出させている、請求項1~4のいずれか一項に記載の半導体装置。
- 前記第1部分は、平面視において前記チャネル反転領域の全域を被覆し、
前記第2部分は、平面視において前記ドリフト領域を部分的に露出させるように前記ドリフト領域を部分的に被覆している、請求項1~5のいずれか一項に記載の半導体装置。 - 前記第2電極部は、前記第2部分の複数の個所を露出させている、請求項1~6のいずれか一項に記載の半導体装置。
- 前記第2電極部は、平面視において前記第2部分の複数の箇所を一列に間隔を空けて露出させている、請求項1~7のいずれか一項に記載の半導体装置。
- 前記主面の上で前記ドリフト領域を被覆し、前記ゲート絶縁膜の厚さとは異なる厚さを有するフィールド絶縁膜をさらに含む、請求項1~8のいずれか一項に記載の半導体装置。
- 前記フィールド絶縁膜は、前記第2部分に連なり、
前記第2電極部は、前記第2部分の上から前記フィールド絶縁膜の上に引き出され、前記フィールド絶縁膜を挟んで前記ドリフト領域に対向している、請求項9に記載の半導体装置。 - 前記第2電極部は、前記フィールド絶縁膜を部分的に露出させている、請求項10に記載の半導体装置。
- 前記第2電極部は、前記ドレイン領域および前記ソース領域の対向方向に延び、前記フィールド絶縁膜を部分的に露出させる辺を有している、請求項11に記載の半導体装置。
- 前記第2電極部は、前記フィールド絶縁膜の複数の個所を露出させている、請求項11または12に記載の半導体装置。
- 前記第2電極部は、平面視において前記フィールド絶縁膜の複数の箇所を一列に露出させている、請求項11~13のいずれか一項に記載の半導体装置。
- 前記主面の表層部に形成された第1導電型の半導体領域と、
前記半導体領域の表層部に形成された第2導電型のドレインウェル領域と、をさらに含み、
第2導電型の前記ドレイン領域が、前記ドレインウェル領域の表層部に形成され、
第2導電型の前記ソース領域が、前記ドレインウェル領域から間隔を空けて前記半導体領域の表層部に形成され、
前記チャネル反転領域は、前記ドレインウェル領域および前記ソース領域の間の領域に形成され、
前記ドリフト領域は、前記ドレインウェル領域に形成される、請求項1~14のいずれか一項に記載の半導体装置。 - 前記ドレインウェル領域から間隔を空けて前記半導体領域の表層部に形成された第1導電型のソースウェル領域をさらに含み、
前記ソース領域は、前記ソースウェル領域の表層部に形成されている、請求項15に記載の半導体装置。 - 前記ソースウェル領域の表層部に形成された第1導電型のコンタクト領域をさらに含む、請求項16に記載の半導体装置。
- 前記主面の表層部に形成された第1導電型の半導体領域と、
前記半導体領域の表層部に形成された第2導電型のソースウェル領域と、をさらに含み、
第1導電型の前記ドレイン領域が、前記ソースウェル領域から間隔を空けて前記半導体領域の表層部に形成され、
第1導電型の前記ソース領域が、前記ソースウェル領域の表層部に形成され、
前記チャネル反転領域は、前記ソースウェル領域の表層部において前記半導体領域および前記ソース領域の間に形成され、
前記ドリフト領域は、前記ソースウェル領域および前記ドレイン領域の間の領域に形成される、請求項1~14のいずれか一項に記載の半導体装置。 - 前記ソースウェル領域から間隔を空けて前記半導体領域の表層部に形成された第1導電型のドレインウェル領域をさらに含み、
前記ドレイン領域は、前記ドレインウェル領域の表層部に形成されている、請求項18に記載の半導体装置。 - 前記ソースウェル領域の表層部に形成された第2導電型のコンタクト領域をさらに含む、請求項18または19に記載の半導体装置。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020181367 | 2020-10-29 | ||
| JP2020181367 | 2020-10-29 | ||
| PCT/JP2021/039336 WO2022092035A1 (ja) | 2020-10-29 | 2021-10-25 | 半導体装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPWO2022092035A1 JPWO2022092035A1 (ja) | 2022-05-05 |
| JP7815134B2 true JP7815134B2 (ja) | 2026-02-17 |
Family
ID=81381473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2022559130A Active JP7815134B2 (ja) | 2020-10-29 | 2021-10-25 | 半導体装置 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20230378345A1 (ja) |
| JP (1) | JP7815134B2 (ja) |
| WO (1) | WO2022092035A1 (ja) |
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| DE112022003464T5 (de) * | 2021-07-08 | 2024-04-25 | Rohm Co., Ltd. | Halbleiterbauteil |
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| JP7731265B2 (ja) * | 2021-11-18 | 2025-08-29 | エイブリック株式会社 | 半導体装置 |
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2021
- 2021-10-25 JP JP2022559130A patent/JP7815134B2/ja active Active
- 2021-10-25 US US18/031,015 patent/US20230378345A1/en active Pending
- 2021-10-25 WO PCT/JP2021/039336 patent/WO2022092035A1/ja not_active Ceased
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| US20130341714A1 (en) | 2012-06-20 | 2013-12-26 | Samsung Electronics Co., Ltd. | Semiconductor device having power metal-oxide-semiconductor transistor |
| JP2015216218A (ja) | 2014-05-09 | 2015-12-03 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
| US20160172486A1 (en) | 2014-12-12 | 2016-06-16 | Samsung Electronics Co., Ltd. | Semiconductor device |
| US20170194489A1 (en) | 2015-12-31 | 2017-07-06 | SK Hynix Inc. | Lateral power integrated devices having low on-resistance |
| JP2019165094A (ja) | 2018-03-19 | 2019-09-26 | 株式会社東芝 | 半導体装置 |
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| JPWO2022092035A1 (ja) | 2022-05-05 |
| WO2022092035A1 (ja) | 2022-05-05 |
| US20230378345A1 (en) | 2023-11-23 |
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