JP4921730B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
- Publication number
- JP4921730B2 JP4921730B2 JP2005178837A JP2005178837A JP4921730B2 JP 4921730 B2 JP4921730 B2 JP 4921730B2 JP 2005178837 A JP2005178837 A JP 2005178837A JP 2005178837 A JP2005178837 A JP 2005178837A JP 4921730 B2 JP4921730 B2 JP 4921730B2
- Authority
- JP
- Japan
- Prior art keywords
- sense
- layer
- semiconductor
- region
- well
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004065 semiconductor Substances 0.000 title claims description 165
- 239000000758 substrate Substances 0.000 claims description 41
- 239000012535 impurity Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 41
- 238000010586 diagram Methods 0.000 description 16
- 239000013078 crystal Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 210000000746 body region Anatomy 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- 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
- 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
- H01L29/7815—Vertical DMOS transistors, i.e. VDMOS transistors with voltage or current sensing structure, e.g. emulator section, overcurrent sensing cell
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—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
- H01L29/0603—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
- 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
- H01L29/0611—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
- 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]
- H01L29/063—Reduced surface field [RESURF] pn-junction structures
- H01L29/0634—Multiple reduced surface field (multi-RESURF) structures, e.g. double RESURF, charge compensation, cool, superjunction (SJ), 3D-RESURF, composite buffer (CB) structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—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
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—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
- H01L29/10—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 with semiconductor regions connected to an electrode not carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- H01L29/1095—Body region, i.e. base region, of DMOS transistors or IGBTs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Description
本発明の別態様に係る半導体装置は、半導体基板と、前記半導体基板の裏面上に配置された裏面電極と、前記半導体基板の表面上に、前記半導体基板の表面側から見た平面視で、第1の方向に延伸してストライプ状に配置された第1導電型の第1半導体層と第2導電型の第2半導体層とを含む半導体部と、ゲート電極、前記第2半導体層上に形成された第2導電型のウェル、前記ウェル中に形成された第1導電型のソース層又はエミッタ層、及び、前記半導体基板の表面側に配置されると共に前記ウェル及び前記ソース層又は前記エミッタ層と接続された第1表面電極を含むメイン領域と、センスゲート電極、前記第2半導体層上に形成された第2導電型のセンスウェル、前記センスウェル中に形成された第1導電型のセンスソース層又はセンスエミッタ層、及び、前記半導体基板の表面側に配置されると共に前記センスウェル及び前記センスソース層又は前記センスエミッタ層と接続され、前記第1表面電極と分離され、前記第1の方向を長手方向とする矩形形状をなす第2表面電極を含むセンス領域と、を備え、前記第1表面電極は前記第1半導体層と前記第2半導体層が交互に配置される第2の方向の一方側に位置し、前記第2表面電極は前記第2の方向の他方側に位置することを特徴とする。
[第1実施形態]
図1は、第1実施形態に係る半導体装置1の断面の模式図である。半導体装置1は、多数のメインセル3と多数の電流検出用セル5を備え、これらのセルが同じチップに形成されている。これらのセルはパワーMOSFETである。メインセル3の配置される領域がメイン領域7であり、電流検出用セル5の配置される領域がセンス領域9である。以下、半導体装置1の構造を詳細に説明する。
[第2実施形態]
図9は、第2実施形態に係る半導体装置61の平面全体の模式図であり、図2と対応する。メイン領域7は第1半導体層15と第2半導体層17が交互に配置されるX方向の一方側に位置し、センス領域9はX方向の他方側に位置している。
Claims (5)
- 半導体基板と、
前記半導体基板の裏面上に配置された裏面電極と、
前記半導体基板の表面上に、前記半導体基板の表面側から見た平面視で、第1の方向に延伸してストライプ状に配置された第1導電型の第1半導体層と第2導電型の第2半導体層とを含む半導体部と、
ゲート電極、前記第2半導体層上に形成された第2導電型のウェル、前記ウェル中に形成された第1導電型のソース層又はエミッタ層、及び、前記半導体基板の表面側に配置されると共に前記ウェル及び前記ソース層又は前記エミッタ層と接続された第1表面電極を含むメイン領域と、
センスゲート電極、前記第2半導体層上に形成された第2導電型のセンスウェル、前記センスウェル中に形成された第1導電型のセンスソース層又はセンスエミッタ層、及び、前記半導体基板の表面側に配置されると共に前記センスウェル及び前記センスソース層又は前記センスエミッタ層と接続され、前記第1表面電極と分離され、前記第1の方向を長手方向とする矩形形状をなす第2表面電極を含むセンス領域と、を備え、
前記第1表面電極は、前記第2表面電極の2辺の長辺と1辺の短辺を囲んでいる
ことを特徴とする半導体装置。 - 半導体基板と、
前記半導体基板の裏面上に配置された裏面電極と、
前記半導体基板の表面上に、前記半導体基板の表面側から見た平面視で、第1の方向に延伸してストライプ状に配置された第1導電型の第1半導体層と第2導電型の第2半導体層とを含む半導体部と、
ゲート電極、前記第2半導体層上に形成された第2導電型のウェル、前記ウェル中に形成された第1導電型のソース層又はエミッタ層、及び、前記半導体基板の表面側に配置されると共に前記ウェル及び前記ソース層又は前記エミッタ層と接続された第1表面電極を含むメイン領域と、
センスゲート電極、前記第2半導体層上に形成された第2導電型のセンスウェル、前記センスウェル中に形成された第1導電型のセンスソース層又はセンスエミッタ層、及び、前記半導体基板の表面側に配置されると共に前記センスウェル及び前記センスソース層又は前記センスエミッタ層と接続され、前記第1表面電極と分離され、前記第1の方向を長手方向とする矩形形状をなす第2表面電極を含むセンス領域と、を備え、
前記第1表面電極は前記第1半導体層と前記第2半導体層が交互に配置される第2の方向の一方側に位置し、
前記第2表面電極は前記第2の方向の他方側に位置する
ことを特徴とする半導体装置。 - 前記メイン領域及び前記センス領域から分離して、前記メイン領域及び前記センス領域を囲み、前記半導体部上に位置すると共に前記第1表面電極と接続された第2導電型のリング層を更に備える
ことを特徴とする請求項1又は2に記載の半導体装置。 - 前記センス領域と前記リング層の距離は、前記メイン領域と前記リング層の距離より大きい
ことを特徴とする請求項3に記載の半導体装置。 - 前記センス領域と前記リング層の間の前記第2半導体層中に配置されると共に前記第2半導体層よりも第2導電型の不純物濃度が高い第3半導体層を、さらに備える
ことを特徴とする請求項3又は4に記載の半導体装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005178837A JP4921730B2 (ja) | 2005-06-20 | 2005-06-20 | 半導体装置 |
US11/455,650 US7385250B2 (en) | 2005-06-20 | 2006-06-20 | Semiconductor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005178837A JP4921730B2 (ja) | 2005-06-20 | 2005-06-20 | 半導体装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006351985A JP2006351985A (ja) | 2006-12-28 |
JP4921730B2 true JP4921730B2 (ja) | 2012-04-25 |
Family
ID=37566315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005178837A Expired - Fee Related JP4921730B2 (ja) | 2005-06-20 | 2005-06-20 | 半導体装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7385250B2 (ja) |
JP (1) | JP4921730B2 (ja) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4748149B2 (ja) * | 2007-12-24 | 2011-08-17 | 株式会社デンソー | 半導体装置 |
JP5272472B2 (ja) * | 2008-03-28 | 2013-08-28 | サンケン電気株式会社 | 半導体装置 |
JP2010010408A (ja) * | 2008-06-27 | 2010-01-14 | Sanyo Electric Co Ltd | 半導体装置及びその製造方法 |
KR101527270B1 (ko) * | 2010-06-24 | 2015-06-09 | 미쓰비시덴키 가부시키가이샤 | 전력용 반도체 장치 |
JP5757101B2 (ja) * | 2011-02-17 | 2015-07-29 | 富士電機株式会社 | 超接合半導体素子 |
WO2013015014A1 (ja) * | 2011-07-22 | 2013-01-31 | 富士電機株式会社 | 超接合半導体装置 |
CN103367157B (zh) * | 2012-04-06 | 2015-12-09 | 北大方正集团有限公司 | 一种超结mosfet的制备方法 |
JP5758365B2 (ja) | 2012-09-21 | 2015-08-05 | 株式会社東芝 | 電力用半導体素子 |
CN104157689A (zh) * | 2014-08-14 | 2014-11-19 | 西安芯派电子科技有限公司 | 一种具有自隔离的半导体结构 |
CN105633149A (zh) * | 2014-10-31 | 2016-06-01 | 北大方正集团有限公司 | 一种半导体器件及其制作方法 |
JP6512025B2 (ja) * | 2015-08-11 | 2019-05-15 | 富士電機株式会社 | 半導体素子及び半導体素子の製造方法 |
JP6746978B2 (ja) * | 2016-03-15 | 2020-08-26 | 富士電機株式会社 | 半導体装置 |
JP6805620B2 (ja) * | 2016-08-10 | 2020-12-23 | 富士電機株式会社 | 半導体装置 |
JP2019071384A (ja) * | 2017-10-11 | 2019-05-09 | 株式会社東芝 | 半導体装置 |
CN110942992B (zh) * | 2018-09-21 | 2021-08-17 | 无锡华润上华科技有限公司 | 垂直双扩散半导体元器件及其制造方法 |
JP7505217B2 (ja) | 2019-05-15 | 2024-06-25 | 富士電機株式会社 | 超接合半導体装置および超接合半導体装置の製造方法 |
CN113130639A (zh) * | 2019-12-31 | 2021-07-16 | 比亚迪半导体股份有限公司 | 集成电流检测结构的igbt器件及制备方法 |
EP3958325A1 (en) * | 2020-08-18 | 2022-02-23 | Infineon Technologies Austria AG | Semiconductor device |
CN113659011A (zh) * | 2021-10-19 | 2021-11-16 | 茂睿芯(深圳)科技有限公司 | 基于超结mosfet的集成器件及其制造方法 |
CN114496994B (zh) * | 2022-04-07 | 2022-07-01 | 江苏长晶科技股份有限公司 | 一种集成电流采样功能的超结器件 |
US20230420488A1 (en) * | 2022-06-27 | 2023-12-28 | Nanya Technology Corporation | Semiconductor device with ring-shaped electrode and method for preparing the same |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004247751A (ja) | 1991-08-08 | 2004-09-02 | Toshiba Corp | 半導体素子 |
EP0542152B1 (en) * | 1991-11-08 | 1999-07-14 | Canon Kabushiki Kaisha | Laminated solid-state image sensing apparatus and method of manufacturing the same |
JPH07240520A (ja) | 1994-03-01 | 1995-09-12 | Fuji Electric Co Ltd | 絶縁ゲート型バイポーラトランジスタ |
JP3226075B2 (ja) * | 1994-06-22 | 2001-11-05 | 富士電機株式会社 | たて型mos半導体装置 |
JP3393932B2 (ja) * | 1994-08-24 | 2003-04-07 | 株式会社東芝 | 絶縁ゲート型半導体装置 |
JP3400237B2 (ja) | 1996-04-30 | 2003-04-28 | 株式会社東芝 | 半導体装置 |
JP3450650B2 (ja) | 1997-06-24 | 2003-09-29 | 株式会社東芝 | 半導体装置 |
JP3908572B2 (ja) * | 2002-03-18 | 2007-04-25 | 株式会社東芝 | 半導体素子 |
US6804095B2 (en) * | 2002-06-05 | 2004-10-12 | Texas Instruments Incorporated | Drain-extended MOS ESD protection structure |
JP2004342660A (ja) * | 2003-05-13 | 2004-12-02 | Toshiba Corp | 半導体装置及びその製造方法 |
JP4903055B2 (ja) * | 2003-12-30 | 2012-03-21 | フェアチャイルド・セミコンダクター・コーポレーション | パワー半導体デバイスおよびその製造方法 |
-
2005
- 2005-06-20 JP JP2005178837A patent/JP4921730B2/ja not_active Expired - Fee Related
-
2006
- 2006-06-20 US US11/455,650 patent/US7385250B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20060289915A1 (en) | 2006-12-28 |
US7385250B2 (en) | 2008-06-10 |
JP2006351985A (ja) | 2006-12-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4921730B2 (ja) | 半導体装置 | |
US8957502B2 (en) | Semiconductor device | |
CN107731911B (zh) | 半导体装置 | |
US11094808B2 (en) | Semiconductor device | |
US20220208759A1 (en) | Semiconductor device | |
JP5340961B2 (ja) | 半導体装置 | |
JP5741567B2 (ja) | 半導体装置 | |
US10439061B2 (en) | Semiconductor device | |
EP2200089A1 (en) | Trench gate field effect devices | |
US10957690B2 (en) | Semiconductor device | |
JP2005136099A (ja) | 半導体装置 | |
JP7091693B2 (ja) | 半導体装置 | |
US8426944B2 (en) | Insulated gate bipolar transistor | |
CN107731892B (zh) | 半导体装置 | |
JP2003008014A (ja) | 半導体装置 | |
JP7173172B2 (ja) | 半導体装置および半導体モジュール | |
CN111066149B (zh) | 半导体装置 | |
US10957758B2 (en) | Semiconductor device | |
CN112543993A (zh) | 半导体装置 | |
JP2009111237A (ja) | 半導体素子 | |
JP7246423B2 (ja) | 半導体装置 | |
JP7517975B2 (ja) | 半導体装置 | |
JP2009081168A (ja) | 半導体装置とその内部における電界強度の計測方法 | |
JP2023039138A (ja) | 絶縁ゲート型バイポーラトランジスタ | |
KR20170041964A (ko) | 수평형 초접합 전력 반도체 소자 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20080526 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20110922 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20111004 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20111205 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20120110 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20120203 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20150210 Year of fee payment: 3 |
|
LAPS | Cancellation because of no payment of annual fees |