WO2000072360A2 - Junctionisolierter lateral-mosfet für high-/low-side-schalter - Google Patents
Junctionisolierter lateral-mosfet für high-/low-side-schalter Download PDFInfo
- Publication number
- WO2000072360A2 WO2000072360A2 PCT/DE2000/001492 DE0001492W WO0072360A2 WO 2000072360 A2 WO2000072360 A2 WO 2000072360A2 DE 0001492 W DE0001492 W DE 0001492W WO 0072360 A2 WO0072360 A2 WO 0072360A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- zone
- lateral mosfet
- source zone
- drain
- source
- Prior art date
Links
- 239000004065 semiconductor Substances 0.000 claims description 16
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 239000002800 charge carrier Substances 0.000 claims description 4
- 239000000758 substrate Substances 0.000 abstract description 7
- 230000015556 catabolic process Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005036 potential barrier Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 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
- H01L29/08—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 carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- H01L29/0843—Source or drain regions of field-effect devices
- H01L29/0847—Source or drain regions of field-effect devices of field-effect transistors with insulated gate
-
- 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
- H01L29/10—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
- H01L29/1025—Channel region of field-effect devices
- H01L29/1029—Channel region of field-effect devices of field-effect transistors
- H01L29/1033—Channel region of field-effect devices of field-effect transistors with insulated gate, e.g. characterised by the length, the width, the geometric contour or the doping 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
- H01L29/7833—Field effect transistors with field effect produced by an insulated gate with lightly doped drain or source extension, e.g. LDD MOSFET's; DDD MOSFET's
Definitions
- the present invention relates to a junctioned lateral MOSFET for a high / low switch, with a semiconductor body of one conduction type with two main surfaces which are essentially opposite one another, a source zone and a drain zone being formed from the one main surface , each of the other conduction type, extend into the semiconductor body at a distance from one another, the drain zone and the source zone are surrounded on their outer circumference by a region of the one conduction type, in the region between the source zone and the drain zone an insulating layer with a gate electrode is provided on one main surface and the semiconductor body is grounded on the other main surface.
- High-voltage (HV) MOSFETs are widely used in bridge circuits to switch relatively low voltages in the order of 50 to 100 V or higher voltages.
- HV-MOSFETs should be easy to integrate and should have a simple structure. Especially when used in bridge circuits, for example, no integrated reverse diode should be required for the operation of the HV-MOSFET.
- junction-insulated lateral MOSFET As a switch in bridge circuits. So far, however, it has not been possible to design such a junction-insulated lateral MOSFET in such a way that it can also be used for higher voltages above about 50 to 100 V and can be integrated easily and without great effort. It is therefore an object of the present invention to provide a junction-insulated lateral MOSFET for high / low side switches which can also be used for voltages above 50 to 100 V and which is distinguished by a simple structure, so that it can be produced with little effort.
- a junction-insulated lateral MOSFET for high / low-side switches of the type mentioned at the outset is distinguished according to the invention in that an area of one conduction type differs from the one between the source zone and the drain zone Main surface extends to the semiconductor body.
- This region of the one conductivity type preferably has a doping concentration N pi , with:
- N DB is the doping concentration for breakthrough charge and is approximately 2 "10 12 charge carriers cm " 2 for silicon.
- the source zone and the drain zone are embedded in column-like regions of the one conduction type which extend from the one main surface to the semiconductor body. These pillar-like areas are more or less periodically distributed, the total amount of charges in these pillar-like areas and in the source zone and in the drain zone being approximately the same.
- the source zone and / or the drain zone is provided with field plates. This can improve the dielectric strength of the junction-insulated lateral MOSFET.
- the columnar regions act as a compensation charge when arranged perpendicular to the main surfaces and when arranged parallel to these, so that a higher doping of the opposite conductivity type is permitted around these regions.
- the semiconductor body is p-conducting
- the source zone and the drain zone are n-conducting
- the area of the one type of conduction between the source zone and the drain zone is p-conducting.
- Column-like p-type regions are then embedded in the source zone and the drain zone, which act as a compensation charge and thus enable a higher n-doping of the source zone and the drain zone.
- FIG. 1 shows a section through a junction-insulated lateral MOSFET according to the invention
- FIG. 2 shows the junction insulated lateral MOSFET of FIG. 1 in the blocked state
- 3 shows the junction-insulated lateral MOSFET from FIG. 1 in a “Hi-Side” state, the channel being switched on
- 4 shows a further exemplary embodiment of the junction-insulated lateral MOSFET according to the invention with column-like regions embedded in the source zone and the drain zone, which extend perpendicular to the main surfaces, and
- FIG. 5 shows a perspective illustration of a further exemplary embodiment of the junction-isolated lateral MOSFET according to the invention with m the source
- n-type source zone 2 and an n-type drain zone 3, which are separated from one another by a p-type region 4, are provided on a semiconductor substrate 1 made of silicon of the p-type conductivity.
- the drain zone 2 and the source zone 3 are surrounded on their outer circumference by a p-type region 5.
- the area 5 thus forms an outer frame which surrounds the zones 2 and 3, while the area 4 extends between two sides of the area 5 and separates the zones 2 and 3 from one another.
- a gate insulating layer made of, for example, silicon dioxide, on which a gate electrode 9 made of doped polyknstallmem silicon with a gate connection G is provided.
- the region 4 which represents a wall between the zones 2 and 3 has a doping concentration N pi which lies between the doping N DB for the breakdown charge and the double doping for the breakdown charge.
- the breakthrough charge amounts to approximately 2 10 12 charge carriers cm "2 .
- junction-insulated lateral MOSFET of FIG. 1 The mode of operation of the junction-insulated lateral MOSFET of FIG. 1 will now be explained with reference to FIGS. 2 and 3.
- FIG. 4 shows a further exemplary embodiment of the lateral MOSFET according to the invention, additional column-shaped p-type regions 13 m, the source zone 2 or the dram zone 3, being embedded in such a way that these regions 13 are located between the one Main surface 14 and the p-type
- Extend substrate 1 instead of these column-like regions 13, horizontally running column-like, p-conducting regions 14 can also be provided, as is shown in the exemplary embodiment in FIG. 5. These pillar-like regions 13 and 14 create low-resistance structures, since they act as compensation charges and thus allow a higher n-doping in the source zone or in the drain zone 3.
- the source zone 2 and the drain zone 3 can also be provided with field plates 15, as shown for the source zone 2 in FIG. 5.
- the invention thus enables a lateral MOSFET junction-insulated by the p-type region 5 and the substrate 1 for high / low switch, this MOSFET being usable for relatively high voltages above 50 to 100 V and being integrated without major problems can.
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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)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/017,638 US6541804B2 (en) | 1999-05-21 | 2001-12-18 | Junction-isolated lateral MOSFET for high-/low-side switches |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19923466.3 | 1999-05-21 | ||
DE19923466A DE19923466B4 (de) | 1999-05-21 | 1999-05-21 | Junctionsisolierter Lateral-MOSFET für High-/Low-Side-Schalter |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/017,638 Continuation US6541804B2 (en) | 1999-05-21 | 2001-12-18 | Junction-isolated lateral MOSFET for high-/low-side switches |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000072360A2 true WO2000072360A2 (de) | 2000-11-30 |
WO2000072360A3 WO2000072360A3 (de) | 2001-07-19 |
Family
ID=7908826
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/001492 WO2000072360A2 (de) | 1999-05-21 | 2000-05-12 | Junctionisolierter lateral-mosfet für high-/low-side-schalter |
Country Status (3)
Country | Link |
---|---|
US (1) | US6541804B2 (de) |
DE (1) | DE19923466B4 (de) |
WO (1) | WO2000072360A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1162664A1 (de) * | 2000-06-09 | 2001-12-12 | Motorola, Inc. | Laterale Halbleiteranordnung mit niedrigem Einschaltwiderstand und Verfahren zu deren Herstellung |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10137676B4 (de) | 2001-08-01 | 2007-08-23 | Infineon Technologies Ag | ZVS-Brückenschaltung zum entlasteten Schalten |
DE10255359B4 (de) * | 2002-11-27 | 2008-09-04 | Infineon Technologies Ag | Transistor mit Füllbereichen im Source- und/oder Draingebiet |
CN1333472C (zh) * | 2005-04-04 | 2007-08-22 | 江苏奥雷光电有限公司 | 大功率发光二极管荧光粉固化工艺 |
US7420248B2 (en) * | 2005-08-25 | 2008-09-02 | International Business Machines Corporation | Programmable random logic arrays using PN isolation |
US8354698B2 (en) * | 2010-01-28 | 2013-01-15 | System General Corp. | VDMOS and JFET integrated semiconductor device |
US8901897B2 (en) | 2012-03-02 | 2014-12-02 | International Business Machines Corporation | Operating a DC-DC converter |
US9281748B2 (en) | 2012-03-02 | 2016-03-08 | Lenovo Enterprise Solutions (Singapore) Pte. Ltd. | Operating a DC-DC converter |
US9236347B2 (en) | 2013-10-09 | 2016-01-12 | Lenovo Enterprise Solutions (Singapore) Pte. Ltd. | Operating and manufacturing a DC-DC converter |
US9219422B1 (en) | 2014-08-21 | 2015-12-22 | Lenovo Enterprise Solutions (Singapore) Pte. Ltd. | Operating a DC-DC converter including a coupled inductor formed of a magnetic core and a conductive sheet |
US9379619B2 (en) | 2014-10-21 | 2016-06-28 | Lenovo Enterprise Solutions (Singapore) Pte. Ltd. | Dividing a single phase pulse-width modulation signal into a plurality of phases |
US9618539B2 (en) | 2015-05-28 | 2017-04-11 | Lenovo Enterprise Solutions (Singapore) Pte. Ltd. | Sensing current of a DC-DC converter |
EP3358626B1 (de) * | 2017-02-02 | 2022-07-20 | Nxp B.V. | Verfahren zur herstellung einer halbleiterschaltvorrichtung |
JP7156313B2 (ja) * | 2018-01-22 | 2022-10-19 | 住友電気工業株式会社 | 炭化珪素半導体装置 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3649886A (en) * | 1967-11-21 | 1972-03-14 | Philips Corp | Semiconductor device having a semiconductor body of which a surface is at least locally covered with an oxide film and method of manufacturing a planar semiconductor device |
US4132998A (en) * | 1977-08-29 | 1979-01-02 | Rca Corp. | Insulated gate field effect transistor having a deep channel portion more highly doped than the substrate |
US5294824A (en) * | 1992-07-31 | 1994-03-15 | Motorola, Inc. | High voltage transistor having reduced on-resistance |
US5348215A (en) * | 1992-11-04 | 1994-09-20 | Kevin Rafferty | Method of bonding hard metal objects |
WO1997029518A1 (de) * | 1996-02-05 | 1997-08-14 | Siemens Aktiengesellschaft | Durch feldeffekt steuerbares halbleiterbauelement |
DE19604044A1 (de) * | 1996-02-05 | 1997-08-14 | Siemens Ag | Durch Feldeffekt steuerbares Halbleiterbauelement |
US5726469A (en) * | 1994-07-20 | 1998-03-10 | University Of Elec. Sci. & Tech. Of China | Surface voltage sustaining structure for semiconductor devices |
US5831320A (en) * | 1995-12-02 | 1998-11-03 | Lg Semicon Co., Ltd. | High voltage metal oxide silicon field effect transistor |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4309764C2 (de) * | 1993-03-25 | 1997-01-30 | Siemens Ag | Leistungs-MOSFET |
DE19748523C2 (de) * | 1997-11-03 | 1999-10-07 | Siemens Ag | Halbleiterbauelement, Verfahren zum Herstellen eines derartigen Halbleiterbauelementes und Verwendung des Verfahrens |
KR100273291B1 (ko) * | 1998-04-20 | 2001-01-15 | 김영환 | 모스 전계 효과 트랜지스터의 제조 방법 |
-
1999
- 1999-05-21 DE DE19923466A patent/DE19923466B4/de not_active Expired - Fee Related
-
2000
- 2000-05-12 WO PCT/DE2000/001492 patent/WO2000072360A2/de active Application Filing
-
2001
- 2001-12-18 US US10/017,638 patent/US6541804B2/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US3649886A (en) * | 1967-11-21 | 1972-03-14 | Philips Corp | Semiconductor device having a semiconductor body of which a surface is at least locally covered with an oxide film and method of manufacturing a planar semiconductor device |
US4132998A (en) * | 1977-08-29 | 1979-01-02 | Rca Corp. | Insulated gate field effect transistor having a deep channel portion more highly doped than the substrate |
US5294824A (en) * | 1992-07-31 | 1994-03-15 | Motorola, Inc. | High voltage transistor having reduced on-resistance |
US5348215A (en) * | 1992-11-04 | 1994-09-20 | Kevin Rafferty | Method of bonding hard metal objects |
US5726469A (en) * | 1994-07-20 | 1998-03-10 | University Of Elec. Sci. & Tech. Of China | Surface voltage sustaining structure for semiconductor devices |
US5831320A (en) * | 1995-12-02 | 1998-11-03 | Lg Semicon Co., Ltd. | High voltage metal oxide silicon field effect transistor |
WO1997029518A1 (de) * | 1996-02-05 | 1997-08-14 | Siemens Aktiengesellschaft | Durch feldeffekt steuerbares halbleiterbauelement |
DE19604044A1 (de) * | 1996-02-05 | 1997-08-14 | Siemens Ag | Durch Feldeffekt steuerbares Halbleiterbauelement |
Non-Patent Citations (1)
Title |
---|
ROSSEL P: "M.O.S. TECHNOLOGIES FOR SMART POWER AND HIGH-VOLTAGE CIRCUITS" ONDE ELECTRIQUE,FR,EDITIONS CHIRON S.A. PARIS, Bd. 67, Nr. 6, 1. November 1987 (1987-11-01), Seiten 58-69, XP000111247 ISSN: 0030-2430 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1162664A1 (de) * | 2000-06-09 | 2001-12-12 | Motorola, Inc. | Laterale Halbleiteranordnung mit niedrigem Einschaltwiderstand und Verfahren zu deren Herstellung |
WO2001095397A1 (en) * | 2000-06-09 | 2001-12-13 | Motorola Inc | Lateral semiconductor device with low on-resistance and method of making the same |
US6906381B2 (en) | 2000-06-09 | 2005-06-14 | Freescale Semiconductor, Inc. | Lateral semiconductor device with low on-resistance and method of making the same |
Also Published As
Publication number | Publication date |
---|---|
US6541804B2 (en) | 2003-04-01 |
DE19923466B4 (de) | 2005-09-29 |
DE19923466A1 (de) | 2000-11-30 |
US20020096697A1 (en) | 2002-07-25 |
WO2000072360A3 (de) | 2001-07-19 |
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