JP2006019553A - 縦型半導体装置 - Google Patents
縦型半導体装置 Download PDFInfo
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- JP2006019553A JP2006019553A JP2004196546A JP2004196546A JP2006019553A JP 2006019553 A JP2006019553 A JP 2006019553A JP 2004196546 A JP2004196546 A JP 2004196546A JP 2004196546 A JP2004196546 A JP 2004196546A JP 2006019553 A JP2006019553 A JP 2006019553A
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 28
- 239000000758 substrate Substances 0.000 claims abstract description 30
- 238000005468 ion implantation Methods 0.000 claims description 2
- 108010075750 P-Type Calcium Channels Proteins 0.000 abstract description 18
- 230000015556 catabolic process Effects 0.000 abstract description 15
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 108091006146 Channels Proteins 0.000 description 19
- 239000010410 layer Substances 0.000 description 15
- 239000011229 interlayer Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000003071 parasitic effect Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- -1 boron ions Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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- 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
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- 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]
- H01L29/0619—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] with a supplementary region doped oppositely to or in rectifying contact with the semiconductor containing or contacting region, e.g. guard rings with PN or Schottky junction
-
- 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]
- H01L29/0619—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] with a supplementary region doped oppositely to or in rectifying contact with the semiconductor containing or contacting region, e.g. guard rings with PN or Schottky junction
- H01L29/0623—Buried supplementary region, e.g. buried guard ring
-
- 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
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- 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)
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
【解決手段】MOSFETセルはP型チャネル領域2の中心を頂点とした正方形を単位領域とし、縦横とも一定の配列ピッチで配置されている。ドレイン領域となるN型半導体基板1の表面上にP型チャネル領域2が選択的に形成され、P型チャネル領域2の中にN型ソース領域3が選択的に形成され、N型半導体基板1の表面上にゲート酸化膜を介してゲート電極4が形成されている。ソース領域3と接続するソース電極6と、N型半導体基板1の裏面にはドレイン電極7が形成されている。上から見て単位領域の中央部で、P型チャネル領域2の底部と同じかそれより深い位置にP型埋め込み領域9が形成されている。
【選択図】図1
Description
2 P型チャネル領域
3 N型ソース領域
4 ゲート電極
5 層間絶縁膜
6 ソース電極
7 ドレイン電極
8 空乏層
8’ 空乏層の山形部分
9、9’ P型埋め込み領域
Claims (3)
- ドレイン領域となる第1導電型の半導体基板の表面側に所定の配列ピッチと形状で形成された複数の第2導電型のチャネル領域と、
前記第2導電型のチャネル領域内に形成された第1導電型のソース領域と、
前記第1導電型の半導体基板上にゲート絶縁膜を介して形成されたゲート電極を備えた縦型半導体装置であって、
隣接する前記第2導電型のチャネル領域の間で且つ前記第2導電型チャネル領域の底部と同じかそれより深い位置に第2導電型の埋め込み領域が形成されていることを特徴とする縦型半導体装置。 - 前記第2導電型チャネル領域の中心を頂点とした多角形の単位領域の中心に前記第2導電型の埋め込み領域が配置されていることを特徴とする請求項1記載の縦型半導体装置。
- 前記第2導電型の埋め込み領域はイオン注入により形成されることを特徴とする請求項1または2記載の縦型半導体装置。
Priority Applications (1)
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JP2004196546A JP2006019553A (ja) | 2004-07-02 | 2004-07-02 | 縦型半導体装置 |
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JP2004196546A JP2006019553A (ja) | 2004-07-02 | 2004-07-02 | 縦型半導体装置 |
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JP2006019553A true JP2006019553A (ja) | 2006-01-19 |
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JP2004196546A Pending JP2006019553A (ja) | 2004-07-02 | 2004-07-02 | 縦型半導体装置 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011258640A (ja) * | 2010-06-07 | 2011-12-22 | Mitsubishi Electric Corp | 半導体装置 |
JP2015057851A (ja) * | 2014-11-19 | 2015-03-26 | 三菱電機株式会社 | 半導体装置 |
JP2017055145A (ja) * | 2016-12-22 | 2017-03-16 | 三菱電機株式会社 | 半導体装置 |
CN109478513A (zh) * | 2016-07-19 | 2019-03-15 | 三菱电机株式会社 | 半导体装置及其制造方法 |
WO2019225567A1 (ja) * | 2018-05-23 | 2019-11-28 | 三菱電機株式会社 | 炭化珪素半導体装置および電力変換装置 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS607764A (ja) * | 1983-06-13 | 1985-01-16 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | 半導体装置 |
JPS6188566A (ja) * | 1984-09-26 | 1986-05-06 | エヌ・ベー・フイリツプス・フルーイランペンフアブリケン | 高電圧半導体装置 |
JPS63252480A (ja) * | 1987-04-09 | 1988-10-19 | Mitsubishi Electric Corp | 縦形モス電界効果トランジスタ |
JPH04132264A (ja) * | 1990-09-21 | 1992-05-06 | Shindengen Electric Mfg Co Ltd | 絶縁ゲート型電界効果トランジスタ |
JPH06291321A (ja) * | 1993-03-31 | 1994-10-18 | Nec Kansai Ltd | 電界効果トランジスタ |
JPH0778978A (ja) * | 1993-09-07 | 1995-03-20 | Toyota Central Res & Dev Lab Inc | 縦型mos電界効果トランジスタ |
JPH08222735A (ja) * | 1995-02-17 | 1996-08-30 | Fuji Electric Co Ltd | 縦型トレンチmisfetおよびその製造方法 |
JPH09213954A (ja) * | 1996-01-31 | 1997-08-15 | Matsushita Electric Works Ltd | 縦型mosトランジスタ及び静電誘導トランジスタ及びトレンチ構造のmosトランジスタ、及び、縦型半導体装置の製造方法 |
JP2001077354A (ja) * | 1999-08-31 | 2001-03-23 | Miyazaki Oki Electric Co Ltd | 縦型絶縁ゲート半導体装置 |
JP2004022693A (ja) * | 2002-06-14 | 2004-01-22 | Toshiba Corp | 半導体装置 |
-
2004
- 2004-07-02 JP JP2004196546A patent/JP2006019553A/ja active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS607764A (ja) * | 1983-06-13 | 1985-01-16 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | 半導体装置 |
JPS6188566A (ja) * | 1984-09-26 | 1986-05-06 | エヌ・ベー・フイリツプス・フルーイランペンフアブリケン | 高電圧半導体装置 |
JPS63252480A (ja) * | 1987-04-09 | 1988-10-19 | Mitsubishi Electric Corp | 縦形モス電界効果トランジスタ |
JPH04132264A (ja) * | 1990-09-21 | 1992-05-06 | Shindengen Electric Mfg Co Ltd | 絶縁ゲート型電界効果トランジスタ |
JPH06291321A (ja) * | 1993-03-31 | 1994-10-18 | Nec Kansai Ltd | 電界効果トランジスタ |
JPH0778978A (ja) * | 1993-09-07 | 1995-03-20 | Toyota Central Res & Dev Lab Inc | 縦型mos電界効果トランジスタ |
JPH08222735A (ja) * | 1995-02-17 | 1996-08-30 | Fuji Electric Co Ltd | 縦型トレンチmisfetおよびその製造方法 |
JPH09213954A (ja) * | 1996-01-31 | 1997-08-15 | Matsushita Electric Works Ltd | 縦型mosトランジスタ及び静電誘導トランジスタ及びトレンチ構造のmosトランジスタ、及び、縦型半導体装置の製造方法 |
JP2001077354A (ja) * | 1999-08-31 | 2001-03-23 | Miyazaki Oki Electric Co Ltd | 縦型絶縁ゲート半導体装置 |
JP2004022693A (ja) * | 2002-06-14 | 2004-01-22 | Toshiba Corp | 半導体装置 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011258640A (ja) * | 2010-06-07 | 2011-12-22 | Mitsubishi Electric Corp | 半導体装置 |
JP2015057851A (ja) * | 2014-11-19 | 2015-03-26 | 三菱電機株式会社 | 半導体装置 |
CN109478513A (zh) * | 2016-07-19 | 2019-03-15 | 三菱电机株式会社 | 半导体装置及其制造方法 |
US10516017B2 (en) | 2016-07-19 | 2019-12-24 | Mitsubishi Electric Corporation | Semiconductor device, and manufacturing method for same |
JP2017055145A (ja) * | 2016-12-22 | 2017-03-16 | 三菱電機株式会社 | 半導体装置 |
WO2019225567A1 (ja) * | 2018-05-23 | 2019-11-28 | 三菱電機株式会社 | 炭化珪素半導体装置および電力変換装置 |
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