KR100935165B1 - 절연 게이트형 트랜지스터 - Google Patents
절연 게이트형 트랜지스터 Download PDFInfo
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- KR100935165B1 KR100935165B1 KR1020070123240A KR20070123240A KR100935165B1 KR 100935165 B1 KR100935165 B1 KR 100935165B1 KR 1020070123240 A KR1020070123240 A KR 1020070123240A KR 20070123240 A KR20070123240 A KR 20070123240A KR 100935165 B1 KR100935165 B1 KR 100935165B1
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- South Korea
- Prior art keywords
- layer
- trench
- source
- longitudinal direction
- base layer
- Prior art date
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- 238000009825 accumulation Methods 0.000 claims abstract description 15
- 239000004065 semiconductor Substances 0.000 claims abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims 4
- 230000015556 catabolic process Effects 0.000 abstract description 8
- 230000007423 decrease Effects 0.000 abstract description 5
- 238000013459 approach Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
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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
- H10D12/00—Bipolar devices controlled by the field effect, e.g. insulated-gate bipolar transistors [IGBT]
- H10D12/411—Insulated-gate bipolar transistors [IGBT]
- H10D12/441—Vertical IGBTs
- H10D12/461—Vertical IGBTs having non-planar surfaces, e.g. having trenches, recesses or pillars in the surfaces of the emitter, base or collector regions
- H10D12/481—Vertical IGBTs having non-planar surfaces, e.g. having trenches, recesses or pillars in the surfaces of the emitter, base or collector regions having gate structures on slanted surfaces, on vertical surfaces, or in grooves, e.g. trench gate IGBTs
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D12/00—Bipolar devices controlled by the field effect, e.g. insulated-gate bipolar transistors [IGBT]
- H10D12/01—Manufacture or treatment
-
- 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
- H10D62/124—Shapes, relative sizes or dispositions of the regions of semiconductor bodies or of junctions between the regions
- H10D62/126—Top-view geometrical layouts of the regions or the junctions
- H10D62/127—Top-view geometrical layouts of the regions or the junctions of cellular field-effect devices, e.g. multicellular DMOS transistors or IGBTs
-
- 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
- H10D62/13—Semiconductor regions connected to electrodes carrying current to be rectified, amplified or switched, e.g. source or drain regions
- H10D62/141—Anode or cathode regions of thyristors; Collector or emitter regions of gated bipolar-mode devices, e.g. of IGBTs
- H10D62/142—Anode regions of thyristors or collector regions of gated bipolar-mode devices
Landscapes
- Semiconductor Integrated Circuits (AREA)
- Electrodes Of Semiconductors (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Abstract
Description
Claims (5)
- 제1 및 제2주면을 가지는 제1도전형의 반도체 기판과,상기 반도체 기판의 제1주면에 형성된 제1도전형의 전하 축적층과,상기 전하 축적층 위에 형성된 제2도전형의 베이스층과,상기 베이스층 및 상기 전하 축적층을 관통하는 스트라이프 형의 트렌치의 내부에 절연막을 통해 매립된 트렌치 게이트 전극과,상기 트렌치의 양측에 배치되어 상기 베이스층 및 상기 전하 축적층을 관통하는 스트라이프 형의 더미 트렌치의 내부에 절연막을 통해 매립되고, 상기 트렌치 게이트 전극과는 전기적으로 비접속인 더미 트렌치 게이트 전극과,상기 트렌치의 측벽에 접촉하도록 상기 베이스층의 표면에 선택적으로 형성되어, 상기 트렌치의 길이방향으로 서로 분리되어 배치된 제1도전형의 소스층과,상기 베이스층의 표면에 있어서, 상기 트렌치의 길이방향으로 서로 분리되어 배치된 상기 소스층 사이에 형성되는 제2도전형의 콘택층과,상기 반도체 기판의 제2주면에 형성된 제2도전형의 콜렉터층과,상기 소스층 및 상기 콘택층에 접속된 이미터 전극과,상기 콜렉터층에 접속된 콜렉터 전극을 가지며,상기 소스층과 상기 콘택층은 상기 트렌치의 길이방향으로 교대로 배치되는 한편, 상기 소스층은 상기 콘택층과 상기 트렌치 사이의 영역 이외에 배치되는 것을 특징으로 하는 절연 게이트형 트랜지스터.
- 제 1항에 있어서,상기 트렌치의 길이방향으로 배치한 상기 소스층 끼리의 간격에 대한 상기 트렌치의 길이방향에 있어서의 상기 소스층 폭의 비율이 1/2∼1/10인 것을 특징으로 하는 절연 게이트형 트랜지스터.
- 제 1항 또는 제 2항에 있어서,상기 더미 트렌치 게이트 전극은, 상기 이미터 전극과 동전위인 것을 특징으로 하는 절연 게이트형 트랜지스터.
- 제 1항 또는 제 2항에 있어서,상기 트렌치의 길이방향에 있어서의 상기 소스층의 폭은 1.0㎛이상인 것을 특징으로 하는 절연 게이트형 트랜지스터.
- 제 1항 또는 제 2항에 있어서,상기 소스층은 부분적인 홈을 가지는 것을 특징으로 하는 절연 게이트형 트랜지스터.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JPJP-P-2007-00064995 | 2007-03-14 | ||
JP2007064995A JP2008227251A (ja) | 2007-03-14 | 2007-03-14 | 絶縁ゲート型トランジスタ |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20080086963A KR20080086963A (ko) | 2008-09-29 |
KR100935165B1 true KR100935165B1 (ko) | 2010-01-06 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020070123240A KR100935165B1 (ko) | 2007-03-14 | 2007-11-30 | 절연 게이트형 트랜지스터 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7675113B2 (ko) |
JP (1) | JP2008227251A (ko) |
KR (1) | KR100935165B1 (ko) |
DE (1) | DE102007057222B4 (ko) |
Cited By (1)
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---|---|---|---|---|
US10115794B2 (en) | 2016-06-24 | 2018-10-30 | Hyundai Motor Company | Semiconductor device comprising accumulation layer channel and inversion layer channel |
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US7785946B2 (en) * | 2007-09-25 | 2010-08-31 | Infineon Technologies Ag | Integrated circuits and methods of design and manufacture thereof |
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2007
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- 2007-08-22 US US11/843,301 patent/US7675113B2/en not_active Expired - Fee Related
- 2007-11-28 DE DE102007057222A patent/DE102007057222B4/de not_active Expired - Fee Related
- 2007-11-30 KR KR1020070123240A patent/KR100935165B1/ko not_active IP Right Cessation
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Publication number | Priority date | Publication date | Assignee | Title |
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US10115794B2 (en) | 2016-06-24 | 2018-10-30 | Hyundai Motor Company | Semiconductor device comprising accumulation layer channel and inversion layer channel |
Also Published As
Publication number | Publication date |
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KR20080086963A (ko) | 2008-09-29 |
DE102007057222A1 (de) | 2008-09-25 |
JP2008227251A (ja) | 2008-09-25 |
US7675113B2 (en) | 2010-03-09 |
DE102007057222B4 (de) | 2012-05-31 |
US20080224207A1 (en) | 2008-09-18 |
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