KR20080060285A - 트렌치 구조 반도체 장치 - Google Patents
트렌치 구조 반도체 장치 Download PDFInfo
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- KR20080060285A KR20080060285A KR1020087011905A KR20087011905A KR20080060285A KR 20080060285 A KR20080060285 A KR 20080060285A KR 1020087011905 A KR1020087011905 A KR 1020087011905A KR 20087011905 A KR20087011905 A KR 20087011905A KR 20080060285 A KR20080060285 A KR 20080060285A
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 143
- 239000000758 substrate Substances 0.000 claims abstract description 77
- 239000012535 impurity Substances 0.000 claims abstract description 26
- 239000004020 conductor Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 2
- 230000015556 catabolic process Effects 0.000 abstract description 16
- 108091006146 Channels Proteins 0.000 description 15
- 230000004888 barrier function Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000005669 field effect Effects 0.000 description 3
- 102000004129 N-Type Calcium Channels Human genes 0.000 description 2
- 108090000699 N-Type Calcium Channels Proteins 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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- H01L29/76—Unipolar devices, e.g. field effect transistors
- 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
- H01L29/7813—Vertical DMOS transistors, i.e. VDMOS transistors with trench gate electrode, e.g. UMOS transistors
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- H01L29/0843—Source or drain regions of field-effect devices
- H01L29/0847—Source or drain regions of field-effect devices of field-effect transistors with insulated gate
- H01L29/0852—Source or drain regions of field-effect devices of field-effect transistors with insulated gate of DMOS transistors
- H01L29/0873—Drain regions
- H01L29/0878—Impurity concentration or distribution
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
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- H01L29/72—Transistor-type devices, i.e. able to continuously respond to applied control signals
- 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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- H01L29/76—Unipolar devices, e.g. field effect transistors
- 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
- H01L29/7811—Vertical DMOS transistors, i.e. VDMOS transistors with an edge termination structure
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- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/02—Bonding areas; Manufacturing methods related thereto
- H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
- H01L2224/06—Structure, shape, material or disposition of the bonding areas prior to the connecting process of a plurality of bonding areas
- H01L2224/0601—Structure
- H01L2224/0603—Bonding areas having different sizes, e.g. different heights or widths
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- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
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- H01L29/0615—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]
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- H01L29/0607—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
- H01L29/0638—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 preventing surface leakage due to surface inversion layer, e.g. with channel stopper
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- H01L29/0684—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 the shape, relative sizes or dispositions of the semiconductor regions or junctions between the regions
- H01L29/0692—Surface layout
- H01L29/0696—Surface layout of cellular field-effect devices, e.g. multicellular DMOS transistors or IGBTs
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- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/417—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
- H01L29/41725—Source or drain electrodes for field effect devices
- H01L29/41766—Source or drain electrodes for field effect devices with at least part of the source or drain electrode having contact below the semiconductor surface, e.g. the source or drain electrode formed at least partially in a groove or with inclusions of conductor inside the semiconductor
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- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Electrodes Of Semiconductors (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
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Abstract
Description
Claims (6)
- 서로 대향하고 있는 일측 및 타측 주면과, 상기 일측 주면의 내측 부분에서 상기 일측 주면으로부터 상기 타측 주면을 향해 연장되어 있는 내측 트렌치와, 상기 일측 주면의 상기 내측 부분보다도 외측 부분에서 상기 일측 주면으로부터 상기 타측 주면을 향해 연장되어 있는 외측 트렌치를 가지고 있는 반도체 기판과,상기 반도체 기판 중에 형성되고 상기 내측 트렌치에 인접하게 배치되며 상기 반도체 기판의 상기 일측 주면에 노출되어 있는 표면을 가지며 또한 제 1 도전형을 가지고 있는 제 1 반도체 영역과,상기 반도체 기판 중에 형성되고 상기 제 1 반도체 영역에 인접하며 상기 제 1 반도체 영역보다 깊은 위치에서 상기 내측 및 외측 트렌치에 인접하며 또한 상기 반도체 기판의 상기 일측 주면에 노출되는 표면을 가지며 또한 제 2 도전형을 가지고 있는 제 2 반도체 영역과,상기 반도체 기판 중에 형성되고 상기 제 2 반도체 영역과 상기 내측 트렌치의 쌍방에 인접하며 상기 반도체 기판의 상기 일측 주면을 기준으로 하여 상기 내측 트렌치보다 깊게 형성되며 또한 제 1 도전형을 가지고 있는 제 3 반도체 영역과,상기 반도체 기판 중에 형성되고 상기 제 2 및 제 3 반도체 영역과 상기 외측 트렌치에 인접하며 상기 외측 트렌치보다 외측에서 상기 반도체 기판의 상기 일측 주면에 노출되는 표면을 가지며 또한 제 1 도전형을 가지며 또한 상기 제 3 반 도체 영역보다 낮은 불순물 농도를 가지고 있는 제 4 반도체 영역과,상기 내측 및 외측 트렌치의 벽면에 형성된 절연막과,상기 내측 및 외측 트렌치 중에 배치되며 상기 절연막을 통해 상기 내측 및 외측 트렌치의 벽면에 대향하고 있는 트렌치 도전체와,상기 제 1 반도체 영역에 전기적으로 접속된 제 1 주전극과,상기 제 4 반도체 영역에 직접 또는 다른 반도체 영역을 통해 전기적으로 접속된 제 2 주전극과,상기 트렌치 도전체에 전기적으로 접속된 게이트 전극,을 구비하고 있는 것을 특징으로 하는 트렌치 구조 반도체 장치.
- 제 1항에 있어서,상기 제 4 반도체 영역과 상기 반도체 기판의 상기 타측 주면과의 사이에 배치되며 또한 제 2 도전형을 가지고 있는 제 5 반도체 영역을 더 구비하며, 상기 제 2 주전극은 상기 제 5 반도체 영역에 전기적으로 접속되어 있는 것을 특징으로 하는 트렌치 구조 반도체 장치.
- 제 2항에 있어서,상기 제 4 반도체 영역과 상기 제 5 반도체 영역과의 사이에 배치되고 제 1 도전형을 가지며 또한 상기 제 4 반도체 영역보다 높은 불순물 농도를 가지고 있는 제 6 반도체 영역을 더 구비하고 있는 것을 특징으로 하는 트렌치 구조 반도체 장 치.
- 제 1항에 있어서,상기 제 2 주전극은, 상기 제 4 반도체 영역에 쇼트키 접촉되어 있는 금속전극인 것을 특징으로 하는 트렌치 구조 반도체 장치.
- 제 1항에 있어서,평면적으로 보았을 때, 상기 내측 트렌치의 외주 가장자리의 길이의 합계가, 상기 외측 트렌치의 가장 외측 가장자리의 길이의 합계보다 길게 설정되어 있는 것을 특징으로 하는 트렌치 구조 반도체 장치.
- 제 1항에 있어서,평면적으로 보았을 때, 상기 내측 트렌치의 면적의 합계가, 상기 외측 트렌치의 면적의 합계보다 크게 설정되어 있는 것을 특징으로 하는 트렌치 구조 반도체 장치.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JPJP-P-2005-00360622 | 2005-12-14 | ||
JP2005360622A JP4609656B2 (ja) | 2005-12-14 | 2005-12-14 | トレンチ構造半導体装置 |
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KR20080060285A true KR20080060285A (ko) | 2008-07-01 |
KR100965354B1 KR100965354B1 (ko) | 2010-06-22 |
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KR1020087011905A KR100965354B1 (ko) | 2005-12-14 | 2006-12-11 | 트렌치 구조 반도체 장치 |
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US (1) | US7709931B2 (ko) |
EP (1) | EP1970963A4 (ko) |
JP (1) | JP4609656B2 (ko) |
KR (1) | KR100965354B1 (ko) |
CN (2) | CN101331609B (ko) |
WO (1) | WO2007069571A1 (ko) |
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KR101265643B1 (ko) | 2006-08-22 | 2013-05-22 | 엘지전자 주식회사 | 무선 통신 시스템에서의 핸드오버 수행 및 그 제어 방법 |
EP2070368B1 (en) | 2006-10-02 | 2016-07-06 | LG Electronics Inc. | Method for transmitting and receiving paging message in wireless communication system |
KR100938754B1 (ko) | 2006-10-30 | 2010-01-26 | 엘지전자 주식회사 | 비연속 수신을 이용한 데이터 수신 및 전송 방법 |
WO2008054112A2 (en) | 2006-10-30 | 2008-05-08 | Lg Electronics Inc. | Methods of performing random access in a wireless communication system |
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KR101469281B1 (ko) | 2007-04-30 | 2014-12-04 | 엘지전자 주식회사 | 무선단말의 상태 전환 방식 |
KR101464748B1 (ko) | 2007-04-30 | 2014-11-24 | 엘지전자 주식회사 | 무선단말의 측정보고 기동방식 |
EP2137910B1 (en) | 2007-04-30 | 2015-07-08 | LG Electronics Inc. | Methods of transmitting data blocks in wireless communication system |
KR101458641B1 (ko) | 2007-04-30 | 2014-11-05 | 엘지전자 주식회사 | Mbms를 지원하는 무선통신 시스템에서 데이터 전송방법 |
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KR101386812B1 (ko) | 2007-04-30 | 2014-04-29 | 엘지전자 주식회사 | 헤더 필드 존재 지시자를 이용한 효율적인 데이터 블록송수신방법 |
KR20080097338A (ko) | 2007-05-01 | 2008-11-05 | 엘지전자 주식회사 | 불연속 데이터 송수신 방법 |
KR100917205B1 (ko) | 2007-05-02 | 2009-09-15 | 엘지전자 주식회사 | 무선 통신 시스템에서의 데이터 블록 구성 방법 |
ES2428569T3 (es) | 2007-06-18 | 2013-11-08 | Lg Electronics Inc. | Procedimiento para llevar a cabo una sincronización de enlace ascendente en un sistema de comunicación inalámbrica |
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CN102903740A (zh) | 2013-01-30 |
CN101331609A (zh) | 2008-12-24 |
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KR100965354B1 (ko) | 2010-06-22 |
EP1970963A1 (en) | 2008-09-17 |
US20080251810A1 (en) | 2008-10-16 |
WO2007069571A1 (ja) | 2007-06-21 |
CN101331609B (zh) | 2013-01-23 |
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JP2007165635A (ja) | 2007-06-28 |
CN102903740B (zh) | 2015-06-24 |
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