JP6139356B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
- Publication number
- JP6139356B2 JP6139356B2 JP2013197410A JP2013197410A JP6139356B2 JP 6139356 B2 JP6139356 B2 JP 6139356B2 JP 2013197410 A JP2013197410 A JP 2013197410A JP 2013197410 A JP2013197410 A JP 2013197410A JP 6139356 B2 JP6139356 B2 JP 6139356B2
- Authority
- JP
- Japan
- Prior art keywords
- region
- floating
- flr
- semiconductor substrate
- regions
- 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.)
- Active
Links
- 239000004065 semiconductor Substances 0.000 title claims description 126
- 210000000746 body region Anatomy 0.000 claims description 114
- 239000000758 substrate Substances 0.000 claims description 84
- 230000002093 peripheral effect Effects 0.000 claims description 22
- 239000012212 insulator Substances 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 description 145
- 230000015556 catabolic process Effects 0.000 description 52
- 230000005684 electric field Effects 0.000 description 29
- 239000012535 impurity Substances 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 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
- H01L29/02—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
-
- 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
- H01L29/02—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
- H01L29/0642—Isolation within the component, i.e. internal isolation
- H01L29/0649—Dielectric regions, e.g. SiO2 regions, air gaps
- H01L29/0653—Dielectric regions, e.g. SiO2 regions, air gaps adjoining the input or output region of a field-effect device, e.g. the source or drain region
-
- 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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/423—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
- H01L29/42312—Gate electrodes for field effect devices
- H01L29/42316—Gate electrodes for field effect devices for field-effect transistors
- H01L29/4232—Gate electrodes for field effect devices for field-effect transistors with insulated gate
- H01L29/42356—Disposition, e.g. buried gate electrode
- H01L29/4236—Disposition, e.g. buried gate electrode within a trench, e.g. trench gate electrode, groove gate electrode
-
- 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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/423—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
- H01L29/42312—Gate electrodes for field effect devices
- H01L29/42316—Gate electrodes for field effect devices for field-effect transistors
- H01L29/4232—Gate electrodes for field effect devices for field-effect transistors with insulated gate
- H01L29/42364—Gate electrodes for field effect devices for field-effect transistors with insulated gate characterised by the insulating layer, e.g. thickness or uniformity
- H01L29/42368—Gate electrodes for field effect devices for field-effect transistors with insulated gate characterised by the insulating layer, e.g. thickness or uniformity the thickness being non-uniform
-
- 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
- H01L29/70—Bipolar devices
- 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
-
- 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
-
- 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
- H01L29/7811—Vertical DMOS transistors, i.e. VDMOS transistors with an edge termination structure
-
- 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
- H01L29/7813—Vertical DMOS transistors, i.e. VDMOS transistors with trench gate electrode, e.g. UMOS transistors
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)
- Electrodes Of Semiconductors (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Description
c0<b0、ci<bj(但し、i=jであり、iの上限値はn−1,m−1のうち小さい方とする)が成立してもよい。
11:半導体基板
12:素子領域
14:終端領域
14a:境界領域
16:ゲート電極
24:ゲートトレンチ
25:ダミートレンチ
26、27:絶縁体
28:ドレイン電極
30:ドレイン領域
32a,32b:ドリフト領域
34、37:拡散領域
36a,36b:ボディ領域
38、39:ボディコンタクト領域
40:ソース領域
41:FLR領域
44:絶縁膜
46:ソース電極
Claims (7)
- 素子領域と、素子領域を取り囲む終端領域を有する半導体基板を備えており、
素子領域には、
半導体基板の上面に臨む範囲に配置されている第1導電型の第1ボディ領域と、
第1ボディ領域の下面に接している第2導電型の第1ドリフト領域と、
その周囲が第1ドリフト領域によって囲まれている複数の第1導電型の第1フローティング領域と、が形成されており、
第1フローティング領域が、半導体基板の厚み方向における所定の深さに、素子領域側から終端領域側に向かって所定の間隔を空けて配置されており、
終端領域には、
半導体基板の上面に臨む範囲に配置されており、素子領域の外周を取り囲んでいる複数の第1導電型のFLR領域と、
FLR領域に接するとともにこれを取り囲んでいる第2導電型の第2ドリフト領域と、
その周囲が第2ドリフト領域によって囲まれている複数の第1導電型の第2フローティング領域と、が形成されており、
第2フローティング領域は、素子領域の外周を取り囲んでおり、
最も素子領域側に配置されているFLR領域の内周側の側面より素子領域側には、少なくとも1つの第2フローティング領域が配置されており、
半導体基板の上面に臨む範囲に配置されると共に素子領域側に部分的に配置され、第1ボディ領域から連続する第1導電型の第2ボディ領域が形成されており、
FLR領域は第2ボディ領域から離間しており、
第2ドリフト領域は、第2ボディ領域の下面及び側面に接しており、第2ボディ領域とFLR領域を分離しており、
半導体基板を平面視したときに、複数の第2フローティング領域の少なくとも1つが、第2ボディ領域と重なる部分を有しており、
半導体基板を平面視したときに第2ボディ領域と重なる部分を有する第2フローティング領域を第2ボディ領域下方第2フローティング領域とすると、第2ボディ領域下方第2フローティング領域は前記所定の深さに配置されており、
第2ボディ領域下方第2フローティング領域のうち最も外周側の第2ボディ領域下方フローティング領域と、その第2ボディ領域下方フローティング領域の反素子領域側に隣接する第2フローティング領域との間隔b0は、前記所定の間隔の2分の1以下であることを特徴とする半導体装置。 - FLR領域はn個(nは自然数)形成されており、
内周側から外周側に向かってi番目(i=1〜n−1)のFLR領域とi+1番目のFLR領域との間隔をciとし、第2ボディ領域と1番目のFLR領域との間隔をc0とし、
第2ボディ領域下方第2フローティング領域を除く第2フローティング領域はm個(mは自然数)形成されており、
そのm個の第2フローティング領域を内周側から外周側に向かって数えてj番目(j=1〜m−1)の第2フローティング領域とj+1番目の第2フローティング領域との間隔をbjとしたときに、次の関係式;
c0<b0、ci<bj(但し、i=jであり、iの上限値はn−1,m−1のうち小さい方とする)
が成り立つことを特徴とする請求項1に記載の半導体装置。 - FLR領域の数は、第2ボディ領域下方第2フローティング領域を除く第2フローティング領域の数よりも多いことを特徴とする請求項2に記載の半導体装置。
- 素子領域と、素子領域を取り囲む終端領域を有する半導体基板を備えており、
素子領域には、
半導体基板の上面に臨む範囲に配置されている第1導電型の第1ボディ領域と、
第1ボディ領域の下面に接している第2導電型の第1ドリフト領域と、
その周囲が第1ドリフト領域によって囲まれている複数の第1導電型の第1フローティング領域と、が形成されており、
終端領域には、
半導体基板の上面に臨む範囲に配置されており、素子領域の外周を取り囲んでいる複数の第1導電型のFLR領域と、
FLR領域に接するとともにこれを取り囲んでいる第2導電型の第2ドリフト領域と、
その周囲が第2ドリフト領域によって囲まれている複数の第1導電型の第2フローティング領域と、が形成されており、
第2フローティング領域は、素子領域の外周を取り囲んでおり、
最も素子領域側に配置されているFLR領域の内周側の側面より素子領域側には、少なくとも1つの第2フローティング領域が配置されており、
半導体基板の厚み方向におけるFLR領域の厚みは、前記厚み方向における第2フローティング領域の厚みよりも大きいことを特徴とする半導体装置。 - 半導体基板を平面視したときに、終端領域は素子領域の少なくとも1つの辺と半導体基板の端辺との間に形成されており、
素子領域の前記1つの辺と半導体基板の端辺との間では、素子領域から半導体基板の端辺に向かう特定方向のFLR領域の幅が、前記特定方向の第2フローティング領域の幅よりも大きいことを特徴とする、請求項1から4のいずれか一項に導体装置。 - 素子領域にはさらに、
第1ボディ領域を貫通して第1ドリフト領域にまで延びるゲートトレンチ内に配置され、第1ボディ領域と対向しているゲート電極と、
ゲート電極とゲートトレンチの内壁との間に配置されている絶縁体と、が形成されており、
素子領域における第1フローティング領域は、ゲートトレンチの底部を囲んでいることを特徴とする請求項1から5のいずれか一項に記載の半導体装置。 - 終端領域にはさらに、
第2ボディ領域を貫通して第2ドリフト領域にまで延びるダミートレンチと、
ダミートレンチ内に配置されている絶縁体と、が形成されており、
ダミートレンチは、素子領域の外周を取り囲んでおり、
少なくとも1つの第2フローティング領域は、ダミートレンチの底部を囲んでいることを特徴とする請求項1から6のいずれか一項に記載の半導体装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013197410A JP6139356B2 (ja) | 2013-09-24 | 2013-09-24 | 半導体装置 |
DE102014218903.9A DE102014218903A1 (de) | 2013-09-24 | 2014-09-19 | Halbleitereinrichtung |
KR1020140125057A KR101668918B1 (ko) | 2013-09-24 | 2014-09-19 | 반도체 장치 |
US14/491,332 US9219142B2 (en) | 2013-09-24 | 2014-09-19 | Semiconductor device having element region and termination region surrounding element region |
CN201410487147.8A CN104465719B (zh) | 2013-09-24 | 2014-09-22 | 半导体装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013197410A JP6139356B2 (ja) | 2013-09-24 | 2013-09-24 | 半導体装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2015065238A JP2015065238A (ja) | 2015-04-09 |
JP6139356B2 true JP6139356B2 (ja) | 2017-05-31 |
Family
ID=52623836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013197410A Active JP6139356B2 (ja) | 2013-09-24 | 2013-09-24 | 半導体装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9219142B2 (ja) |
JP (1) | JP6139356B2 (ja) |
KR (1) | KR101668918B1 (ja) |
CN (1) | CN104465719B (ja) |
DE (1) | DE102014218903A1 (ja) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6139355B2 (ja) | 2013-09-24 | 2017-05-31 | トヨタ自動車株式会社 | 半導体装置 |
US9590092B2 (en) * | 2014-11-13 | 2017-03-07 | Ixys Corporation | Super junction field effect transistor with internal floating ring |
JP6367760B2 (ja) * | 2015-06-11 | 2018-08-01 | トヨタ自動車株式会社 | 絶縁ゲート型スイッチング装置とその製造方法 |
US10243039B2 (en) | 2016-03-22 | 2019-03-26 | General Electric Company | Super-junction semiconductor power devices with fast switching capability |
CN109478559B (zh) * | 2016-07-20 | 2022-02-11 | 三菱电机株式会社 | 碳化硅半导体装置及其制造方法 |
US10559663B2 (en) * | 2016-10-14 | 2020-02-11 | Fuji Electric Co., Ltd. | Semiconductor device with improved current flow distribution |
CN107170688B (zh) * | 2017-07-14 | 2019-10-22 | 吕志超 | 一种沟槽型功率器件及其制作方法 |
WO2019039304A1 (ja) * | 2017-08-21 | 2019-02-28 | 株式会社デンソー | 半導体装置およびその製造方法 |
JP2019046991A (ja) * | 2017-09-04 | 2019-03-22 | ルネサスエレクトロニクス株式会社 | 半導体装置およびその製造方法 |
JP6791084B2 (ja) * | 2017-09-28 | 2020-11-25 | 豊田合成株式会社 | 半導体装置 |
JP2019087611A (ja) * | 2017-11-06 | 2019-06-06 | トヨタ自動車株式会社 | スイッチング素子とその製造方法 |
US10813607B2 (en) * | 2018-06-27 | 2020-10-27 | Prismatic Sensors Ab | X-ray sensor, method for constructing an x-ray sensor and an x-ray imaging system comprising such an x-ray sensor |
JP2020119922A (ja) * | 2019-01-18 | 2020-08-06 | トヨタ自動車株式会社 | 半導体装置 |
JP6648331B1 (ja) | 2019-06-07 | 2020-02-14 | 新電元工業株式会社 | 半導体装置及び半導体装置の製造方法 |
CN110556427B (zh) * | 2019-08-07 | 2021-01-08 | 南京芯舟科技有限公司 | 半导体器件及其结边缘区 |
CN115088080A (zh) * | 2019-12-03 | 2022-09-20 | 株式会社电装 | 半导体装置 |
JP7056707B2 (ja) * | 2020-09-18 | 2022-04-19 | 富士電機株式会社 | 半導体装置 |
CN112447826B (zh) * | 2020-11-24 | 2023-03-24 | 北京工业大学 | 平面型igbt结构 |
JP2022168904A (ja) * | 2021-04-27 | 2022-11-09 | 富士電機株式会社 | 炭化珪素半導体装置および炭化珪素半導体装置の製造方法 |
CN115020240B (zh) * | 2022-08-03 | 2023-03-28 | 上海维安半导体有限公司 | 一种低压超结沟槽mos器件的制备方法及结构 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19816448C1 (de) * | 1998-04-14 | 1999-09-30 | Siemens Ag | Universal-Halbleiterscheibe für Hochspannungs-Halbleiterbauelemente, ihr Herstellungsverfahren und ihre Verwendung |
GB2354879B (en) * | 1999-08-11 | 2004-05-12 | Mitel Semiconductor Ltd | A semiconductor device |
JP3506676B2 (ja) * | 2001-01-25 | 2004-03-15 | Necエレクトロニクス株式会社 | 半導体装置 |
JP4498796B2 (ja) * | 2004-03-29 | 2010-07-07 | トヨタ自動車株式会社 | 絶縁ゲート型半導体装置およびその製造方法 |
DE102005041838B3 (de) * | 2005-09-02 | 2007-02-01 | Infineon Technologies Ag | Halbleiterbauelement mit platzsparendem Randabschluss und Verfahren zur Herstellung eines solchen Bauelements |
JP4453671B2 (ja) * | 2006-03-08 | 2010-04-21 | トヨタ自動車株式会社 | 絶縁ゲート型半導体装置およびその製造方法 |
JP4915221B2 (ja) | 2006-11-28 | 2012-04-11 | トヨタ自動車株式会社 | 半導体装置 |
US7948033B2 (en) * | 2007-02-06 | 2011-05-24 | Semiconductor Components Industries, Llc | Semiconductor device having trench edge termination structure |
JP4599379B2 (ja) * | 2007-08-31 | 2010-12-15 | 株式会社東芝 | トレンチゲート型半導体装置 |
US20120273916A1 (en) * | 2011-04-27 | 2012-11-01 | Yedinak Joseph A | Superjunction Structures for Power Devices and Methods of Manufacture |
US8304829B2 (en) * | 2008-12-08 | 2012-11-06 | Fairchild Semiconductor Corporation | Trench-based power semiconductor devices with increased breakdown voltage characteristics |
US8476698B2 (en) * | 2010-02-19 | 2013-07-02 | Alpha And Omega Semiconductor Incorporated | Corner layout for superjunction device |
US20120217541A1 (en) * | 2011-02-24 | 2012-08-30 | Force Mos Technology Co., Ltd. | Igbt with integrated mosfet and fast switching diode |
US8673700B2 (en) * | 2011-04-27 | 2014-03-18 | Fairchild Semiconductor Corporation | Superjunction structures for power devices and methods of manufacture |
US8772868B2 (en) * | 2011-04-27 | 2014-07-08 | Fairchild Semiconductor Corporation | Superjunction structures for power devices and methods of manufacture |
US8836028B2 (en) * | 2011-04-27 | 2014-09-16 | Fairchild Semiconductor Corporation | Superjunction structures for power devices and methods of manufacture |
JP6037499B2 (ja) * | 2011-06-08 | 2016-12-07 | ローム株式会社 | 半導体装置およびその製造方法 |
US8866221B2 (en) * | 2012-07-02 | 2014-10-21 | Infineon Technologies Austria Ag | Super junction semiconductor device comprising a cell area and an edge area |
-
2013
- 2013-09-24 JP JP2013197410A patent/JP6139356B2/ja active Active
-
2014
- 2014-09-19 US US14/491,332 patent/US9219142B2/en active Active
- 2014-09-19 KR KR1020140125057A patent/KR101668918B1/ko active IP Right Grant
- 2014-09-19 DE DE102014218903.9A patent/DE102014218903A1/de not_active Ceased
- 2014-09-22 CN CN201410487147.8A patent/CN104465719B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR101668918B1 (ko) | 2016-10-24 |
US9219142B2 (en) | 2015-12-22 |
JP2015065238A (ja) | 2015-04-09 |
CN104465719B (zh) | 2018-01-02 |
KR20150033555A (ko) | 2015-04-01 |
US20150084124A1 (en) | 2015-03-26 |
CN104465719A (zh) | 2015-03-25 |
DE102014218903A1 (de) | 2015-03-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6139356B2 (ja) | 半導体装置 | |
JP6139355B2 (ja) | 半導体装置 | |
JP5718627B2 (ja) | 半導体装置 | |
US8957502B2 (en) | Semiconductor device | |
JP5900503B2 (ja) | 半導体装置 | |
EP2219224B1 (en) | Igbt semiconductor device | |
JP6009731B2 (ja) | 半導体装置 | |
JP5915076B2 (ja) | 超接合半導体装置 | |
US9806186B2 (en) | Termination region architecture for vertical power transistors | |
JP5701913B2 (ja) | 半導体装置 | |
US9735149B2 (en) | Schottky barrier diode | |
US9818743B2 (en) | Power semiconductor device with contiguous gate trenches and offset source trenches | |
KR101840961B1 (ko) | 반도체 장치 | |
US20160043205A1 (en) | Semiconductor device | |
JP2011086746A (ja) | 半導体装置 | |
JP5694285B2 (ja) | 半導体装置 | |
JP6299658B2 (ja) | 絶縁ゲート型スイッチング素子 | |
JP6471811B2 (ja) | 半導体装置 | |
JP2015195307A (ja) | 半導体装置 | |
JP2018006648A (ja) | 半導体装置 | |
US9312331B2 (en) | Semiconductor device | |
JP7147510B2 (ja) | スイッチング素子 | |
US9070763B1 (en) | Semiconductor device layout structure | |
JP2024073769A (ja) | 半導体装置 | |
JP2016103561A (ja) | 半導体装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20160303 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20170119 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20170124 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20170327 |
|
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: 20170411 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20170427 |
|
R151 | Written notification of patent or utility model registration |
Ref document number: 6139356 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313117 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |