WO1997011495A1 - Anordnung mit einem pn-übergang und einer massnahme zur herabsetzung der gefahr eines durchbruchs des pn-übergangs - Google Patents
Anordnung mit einem pn-übergang und einer massnahme zur herabsetzung der gefahr eines durchbruchs des pn-übergangs Download PDFInfo
- Publication number
- WO1997011495A1 WO1997011495A1 PCT/DE1996/001557 DE9601557W WO9711495A1 WO 1997011495 A1 WO1997011495 A1 WO 1997011495A1 DE 9601557 W DE9601557 W DE 9601557W WO 9711495 A1 WO9711495 A1 WO 9711495A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- doped region
- electrode
- region
- doped
- edge section
- Prior art date
Links
- 230000015556 catabolic process Effects 0.000 title abstract description 18
- 239000004065 semiconductor Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 15
- 230000000903 blocking effect Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000007704 transition Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 239000012777 electrically insulating material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000002800 charge carrier Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
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
-
- 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
- H01L29/402—Field plates
- H01L29/404—Multiple field plate 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
- H01L29/0603—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]
-
- 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
- H01L29/402—Field plates
Definitions
- IGBTs in particular isolated gate bipolar transistor
- an electrode is arranged with a multi-stage edge section, the edge section of the electrode arranged in the region of the p-doped region lies at a distance from one another and
- the space required for this measure is approximately 350 ⁇ m in the direction of the distance between the edge regions of the electrodes.
- the step heights in the multilevel edge sections are determined by the thickness of layers of electrically insulating material, for example oxide layers, lying beneath the multilevel edge sections and between these sections, and are limited to a total thickness of approximately 10 ⁇ m for reasons of process technology.
- Each step of the multi-step edge section of the electrode arranged in the region of the p-doped region generates an electrical field peak in the semiconductor material, which is defused by the subsequent part of this electrode, so that this electrode can be understood as a field plate which is intended to cause that If possible, no electrical field peaks occur in the body made of semiconductor material.
- the electrode arranged outside the p-doped region in the region of the n-doped region can be regarded as a stop electrode which is intended to cause a space charge zone in the body made of semiconductor material to no longer propagate.
- the reduction in the blocking capacity by the field peaks generated by the steps of the edge section of the field plate should be as small as possible, which requires a good coordination of the step height measured perpendicular to the surface of the body and parallel to this surface in the direction of the step length of each step measured away from the p-doped region.
- the field tip at a free end of the edge section of this electrode can no longer be reduced and limited as described therefore - with a given thickness of the layer of electrically insulating material, ie with a given distance of this free end from the surface - the maximum possible barrier ability of the body.
- JTE technique JTE stands for junction
- Termination Extension in the case of the pn junction formed in the body from semiconductor material, which here too is a transition from a p-doped area formed in the body on its surface to an n-doped area of the body adjacent to this area is, in comparison to the p-doped region, a weaker p-doped region in the body is formed on its surface, which borders both on the p-doped region and on the n-doped region of the body.
- the weakly p-doped region When a reverse voltage is applied, the weakly p-doped region is partially, but not completely, cleared of free charge carriers, with no larger field strength peaks occurring.
- the problem with this other measure is that a certain dose of the weaker p-doping must be adhered to very precisely in order to obtain a high blocking capacity. Accordingly, the structure is very sensitive to surface charges and is difficult to master technically.
- the invention specified in claim 1 is advantageously suitable for reverse voltages of 1600 V and more with a small space requirement.
- the arrangement according to the invention is advantageously suitable for a voltage range of 1600 V to 2500 V and even blocking voltages of significantly more than 2500 V can be achieved with a small space requirement of, for example, only 550 ⁇ m.
- the invention to a certain extent consists of a combination of the two proposed measures described above and avoids their disadvantages.
- the weaker p-doped region reduces the field strength peaks, so that with the same maximum distance of the free end of the edge section offset from the surface of the body made of semiconductor material, each
- the exact dose of the weaker p-doping is less critical, since in the weakly p-doped region, missing charge is provided to a certain extent by the electrode arranged in the region of the p-doped region.
- the arrangement specified in claim 6 has the advantage that the range of the weaker p-dose, in which the highest voltage is reached, widens. 97/11495 PC17DE96 / 01557
- FIG. 1 shows a cross section through a first exemplary embodiment of the arrangement according to the invention
- FIG. 2 shows a diagram in which breakdown voltage of the example according to FIG. 1 is plotted for various n-dopings of the body made of semiconductor material as a function of the concentration of the p-doping of the p-doped region,
- FIG. 3 shows a cross section through a second exemplary embodiment of the arrangement according to the invention, in which the weakly p-doped region has an interruption
- FIG. 4 shows a diagram in which the breakdown voltages of the example according to FIG. 3 in for different n-doping of the body made of semiconductor material
- FIG. 5 shows in cross section a proposed arrangement with two electrodes
- FIG. 7 shows a diagram in which the breakdown voltage of the arrangement according to FIG. 6 is plotted as a function of the concentration of the p-doping of the p-doped region for a single n-doping of the body made of semiconductor material.
- the body 1 made of semiconductor material, for example silicon, a pn junction designated by 23 and indicated by a dashed line, which transitions from a p-doped region 2 formed in the body 1 on its surface 10 to a region 2 on this region 2 and also on the surface 10 bordering n-doped region 3 of the body 1.
- the p-doped region 2 preferably has a high Dotie ⁇ approximate concentration of 10 17 to 1 lO ⁇ cm -3 au f unc ⁇ w i RRJ ⁇ For this reason, hereinafter referred to as p + -doped region referred to.
- da ⁇ n-doped region 3 preferably has a low doping concentration of 10 ⁇ 3 to lO ⁇ 4 cm-3 f au and is referred to for this reason referred to as n ⁇ -doped region.
- the p + -doped region 2 has an outline 20 on the surface 10 of the body 1 on which this region 2 delimits and at the same time the pn transition from the p + -doped region 2 to the n ⁇ - doped region 3 on the surface 10 of the body 1 marked.
- an electrode 4 On the surface 10 of the body 1 of p + is in the range - doped region 2 is disposed an electrode 4, the doped over the outline 20 of the p + region 2 has a recessed from the surface 10 of multi-stage edge portion 40, the border of the electrode 4 is indicated by the dashed line 45 perpendicular to the surface 10 of the body 1.
- the multi-stage edge section 40 has on its side facing the surface 10 of the body 1 a plurality, for example three adjoining steps, which are designated in sequence from left to right in FIG. 1 by 40, 402 and 403, where the last stage 403 borders an end 41 of this edge section 40 facing away from the electrode 4.
- an electrode 5 is arranged, one of the edge portion 40 of the area of the p + -doped area Area 2 arranged electrode 4 at a distance d opposite and offset from the surface 10, at least one-stage edge section 50, the boundary of the electrode 5 is indicated by the dashed line 55 perpendicular to the surface 10 of the body 1.
- the edge section 50 can be structured more simply than the edge section 40, however it is e.g. B. for manufacturing reasons, often useful to structure it also in several stages, in particular essentially the same as the edge section 40.
- the edge section 50 is essentially identical to the edge section 40 and has on its side assigned to the surface 10 of the body 1 three adjoining steps, which in FIG. 1 are in sequence from right to left with 50 ⁇ , 502 and 503 are designated, the last stage 503 bordering an end 51 of this edge section 50 which is remote from the electrode 5 and which faces the end 41 of the edge section 40 and which ends 41 of the edge section 40 with the distance d opposite.
- At least one region 6, which is weaker than the p + -doped region 2 is formed in the body 1 on the surface 10 thereof, which surface the n " -doped region 3 borders, which is indicated by a dash-dotted line 63.
- the weaker p-doped region 6 preferably has a relatively low doping concentration of bi s lO 1 ⁇ cm "" 3 and is therefore referred to below as p ⁇ - doped region.
- the p ⁇ -doped region 6 preferably adjoins the p + -doped region 2 under the edge section 40 of the electrode 4 and, in the example according to FIG. 1, extends continuously from the ⁇ + -doped region 2 in the direction of the electrode 5 to below the Edge section 50 of this electrode 5.
- the steps 40] to 403 of the electrode 4 have the effect of generating an electrical field tip in the semiconductor material of the body 1, each field tip generated by a step through the part of the edge section 40 of the electrode adjacent to this step in FIG. 1 4 is defused again.
- the part of the edge section 40 which adjoins the step 40 ⁇ has the task of defusing the field peaks which occur on the right edge of the p + -doped region 2. In this way, the electrode 4 acts as a field plate.
- the electrode 5 has the task of stopping the spreading of a space charge zone in the body 1 to the right in FIG. 1 and can therefore also be referred to as a stop electrode. For this task, it is favorable if the electrode 5 in the region of a doped compared with the n ⁇ region 3 more n-do ⁇ oriented region 7 in the body 1, at da ⁇ de ⁇ sen surface 10 adjoins, is arranged, and its border to the n " 1 is indicated by a dotted line 73.
- the doping concentration of the more n-doped region 7 is preferably higher than lO 1 ⁇ C m ⁇ 3 and can therefore be referred to as n + -doped region become.
- Such a stepped coating fills the space 8 between the electrodes 4 and 5.
- the surface 42 or 52 of the electrodes 4 and 5 facing away from the surface 10 of the body 1 is not, as shown in FIG. 1, flat, but also has steps which roughly follow the steps shown .
- steps 40 and 50 ⁇ _ have the same step height a1
- steps 402 and 502 have the same step height a2
- steps 403 and 503 have the same step height a3.
- the lengths of the individual stages measured horizontally in FIG. 1 can differ from one another, in particular when the two electrodes 4 and 5 are compared with one another.
- the breakdown voltages of the pn junction 23 for different doping concentrations of the n ⁇ doping of the body 1 are excluded from the diagram shown in FIG Semiconductor material depending on different doping concentrations of the n ⁇ -doped region 3 can be removed. It is assumed that the body 1 consists of silicon, the doping concentration of the p + -doped region 2 is equal to 10 17 cm ⁇ 3 bi ⁇ lO 1 ⁇ cm -3 and its vertical thickness bl in
- FIG. 1 is typically about 6 ⁇ m
- the doping concentration of the n ⁇ -doped region 3 is in the range from 3-10 13 - cm -3 to 7-10 13 cm -3
- the doping concentration of the p ⁇ -doped region 6 the surface 10 de ⁇ ischen ⁇ 1 in the range of lO ⁇ 1 C m "3 bi ⁇ 7-lu 1 ⁇ C ⁇ m is 3
- the verti ⁇ cal thickness b2 in Figure 1 containingrwei ⁇ e about 6 microns is, the two electrodes 4 and 5 au ⁇
- the step height al is 2 ⁇ m
- the step height a2 is 1.5 ⁇ m
- the step height a3 is 4.8 ⁇ m
- the horizontal dimension of the entire arrangement in Figure 1 is approximately equal to 550 microns.
- Curves I to IV in FIG. 2 each give the sequence of the breakdown voltage of the pn junction 23 in turn
- the embodiment according to FIG. 3 differs from the embodiment according to FIG. 1 only in that it differs from the p + -doped region 2 in the direction of the electrode 5 under the edge section 50 of this electrode 5 extending p ⁇ -doped region 6 has at least one interruption 60. Otherwise, this exemplary embodiment is identical to the example according to FIG. 1.
- the p ⁇ -doped region 6 preferably has an interruption 60 under the edge section 40 of the electrode 4 and / or in the vicinity of the end 41 of the edge area 40 of this electrode 4.
- An interruption 60 under the end 41 advantageously leads to the fact that the range of the doping concentration of the p ⁇ -doped region 6, widened at the surface 10, in which the highest breakdown voltage is achieved over thewhere ⁇ beispiel of FIG. 1
- FIG. 5 shows an example of a conventional arrangement having two electrodes 4 and 5, which only differs from the erfindungsgemä ⁇ SEN arrangement of Figure 1 or 3 that da ⁇ ⁇ p -doped region 6 is absent, but an ⁇ on ⁇ ten i ⁇ t same.
- FIG. 6 shows a conventional arrangement using JTE technology with a p ⁇ -doped region 6, for example, which differs from the arrangement according to the invention according to FIG. 1 or 3 only in that electrodes 4 and 5 are missing, but are otherwise the same.
- the diagram according to FIG. 7 shows in curve IV the course of the breakdown voltage of the pn junction 23 of the conventional arrangement according to FIG. 6 for the doping concentration 3.2-10 13 cm -3 of the n " -doped region 3 as a function of the doping concentration of the p ⁇ -doped region 6 on the surface 10 of the body 1, the horizontal dimension of the entire digestible arrangement again being 550 ⁇ m.
- the maximum of this curve lying above 3 kV can be clearly seen, but in comparison to the corresponding curves IV in Figure 2 and Figure 4 is very pointed and narrow, so that the range of the doping concentration of the p ⁇ -doped
- Area 6 on the surface 10 in which the highest breakdown voltage is reached, is disadvantageously very narrow.
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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)
- Electrodes Of Semiconductors (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
- Thyristors (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/043,640 US6064103A (en) | 1995-09-22 | 1996-08-22 | Device with a P-N junction and a means of reducing the risk of breakdown of the junction |
EP96934370A EP0852068A1 (de) | 1995-09-22 | 1996-08-22 | Anordnung mit einem pn-übergang und einer massnahme zur herabsetzung der gefahr eines durchbruchs des pn-übergangs |
JP9512294A JPH11511594A (ja) | 1995-09-22 | 1996-08-22 | pn接合部と該pn接合部の絶縁破壊の危険性を低減させる手段とを有する装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19535322A DE19535322A1 (de) | 1995-09-22 | 1995-09-22 | Anordnung mit einem pn-Übergang und einer Maßnahme zur Herabsetzung der Gefahr eines Durchbruchs des pn-Übergangs |
DE19535322.6 | 1995-09-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997011495A1 true WO1997011495A1 (de) | 1997-03-27 |
Family
ID=7772927
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1996/001557 WO1997011495A1 (de) | 1995-09-22 | 1996-08-22 | Anordnung mit einem pn-übergang und einer massnahme zur herabsetzung der gefahr eines durchbruchs des pn-übergangs |
Country Status (7)
Country | Link |
---|---|
US (1) | US6064103A (de) |
EP (1) | EP0852068A1 (de) |
JP (1) | JPH11511594A (de) |
KR (1) | KR100394914B1 (de) |
DE (1) | DE19535322A1 (de) |
TW (1) | TW372368B (de) |
WO (1) | WO1997011495A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001524756A (ja) | 1997-11-24 | 2001-12-04 | フラウンホーファー−ゲゼルシャフト ツル フェルデング デル アンゲヴァンテン フォルシュング エー.ファー. | 半導体素子の最適化されたエッジ終端部 |
DE19818296C1 (de) * | 1998-04-23 | 1999-08-26 | Siemens Ag | Hochspannungs-Randabschluß für ein Halbleiterbauelement |
US8110868B2 (en) | 2005-07-27 | 2012-02-07 | Infineon Technologies Austria Ag | Power semiconductor component with a low on-state resistance |
US8461648B2 (en) | 2005-07-27 | 2013-06-11 | Infineon Technologies Austria Ag | Semiconductor component with a drift region and a drift control region |
US8106487B2 (en) | 2008-12-23 | 2012-01-31 | Pratt & Whitney Rocketdyne, Inc. | Semiconductor device having an inorganic coating layer applied over a junction termination extension |
JP5843801B2 (ja) | 2013-03-19 | 2016-01-13 | 株式会社東芝 | 情報処理装置およびデバッグ方法 |
JP6101183B2 (ja) | 2013-06-20 | 2017-03-22 | 株式会社東芝 | 半導体装置 |
US9240444B2 (en) * | 2014-05-26 | 2016-01-19 | Nuvoton Technology Corporation | High-voltage semiconductor device with a termination structure |
JP2016035989A (ja) | 2014-08-04 | 2016-03-17 | 株式会社東芝 | 半導体装置 |
CN106158937A (zh) * | 2015-04-09 | 2016-11-23 | 北大方正集团有限公司 | 结终端延伸结构及其制作方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56103463A (en) * | 1980-01-21 | 1981-08-18 | Nippon Denso Co Ltd | Semiconductor device of high withstand voltage planar type |
EP0069429A2 (de) * | 1981-07-06 | 1983-01-12 | Koninklijke Philips Electronics N.V. | Feldeffekttransistor mit isoliertem Gate |
US4605948A (en) * | 1984-08-02 | 1986-08-12 | Rca Corporation | Semiconductor structure for electric field distribution |
US5381031A (en) * | 1993-12-22 | 1995-01-10 | At&T Corp. | Semiconductor device with reduced high voltage termination area and high breakdown voltage |
-
1995
- 1995-09-22 DE DE19535322A patent/DE19535322A1/de not_active Withdrawn
-
1996
- 1996-08-22 EP EP96934370A patent/EP0852068A1/de not_active Withdrawn
- 1996-08-22 US US09/043,640 patent/US6064103A/en not_active Expired - Lifetime
- 1996-08-22 WO PCT/DE1996/001557 patent/WO1997011495A1/de active IP Right Grant
- 1996-08-22 JP JP9512294A patent/JPH11511594A/ja active Pending
- 1996-08-22 KR KR10-1998-0702052A patent/KR100394914B1/ko not_active IP Right Cessation
- 1996-09-07 TW TW085110966A patent/TW372368B/zh not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56103463A (en) * | 1980-01-21 | 1981-08-18 | Nippon Denso Co Ltd | Semiconductor device of high withstand voltage planar type |
EP0069429A2 (de) * | 1981-07-06 | 1983-01-12 | Koninklijke Philips Electronics N.V. | Feldeffekttransistor mit isoliertem Gate |
US4605948A (en) * | 1984-08-02 | 1986-08-12 | Rca Corporation | Semiconductor structure for electric field distribution |
US5381031A (en) * | 1993-12-22 | 1995-01-10 | At&T Corp. | Semiconductor device with reduced high voltage termination area and high breakdown voltage |
Non-Patent Citations (3)
Title |
---|
KOREC J ET AL: "COMPARISON OF DMOS/IGBT-COMPATIBLE HIGH-VOLTAGE TERMINATION STRUCTURES AND PASSIVATION TECHNIQUES", 1 October 1993, IEEE TRANSACTIONS ON ELECTRON DEVICES, VOL. 40, NR. 10, PAGE(S) 1845 - 1854, XP000403564 * |
NAKAGAWA K ET AL: "A 1000 V high voltage P-channel DSAMOS-IC", INTERNATIONAL ELECTRON DEVICES MEETING. TECHNICAL DIGEST, SAN FRANCISCO, CA, USA, 13-15 DEC. 1982, 1982, NEW YORK, NY, USA, IEEE, USA, PAGE(S) 72 - 75, XP002022571 * |
PATENT ABSTRACTS OF JAPAN vol. 005, no. 176 (E - 081) 12 November 1981 (1981-11-12) * |
Also Published As
Publication number | Publication date |
---|---|
JPH11511594A (ja) | 1999-10-05 |
KR100394914B1 (ko) | 2004-05-17 |
EP0852068A1 (de) | 1998-07-08 |
DE19535322A1 (de) | 1997-03-27 |
KR19990063609A (ko) | 1999-07-26 |
TW372368B (en) | 1999-10-21 |
US6064103A (en) | 2000-05-16 |
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