Patents Assigned to Dresden GmbH
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Patent number: 11705506Abstract: A method of manufacturing a semiconductor device includes: forming a trench in a first side of a semiconductor layer, the semiconductor layer including a drift zone of a first conductivity; forming a drain region of the first conductivity type in the first side of the semiconductor layer and laterally adjoining the drift zone; forming a body region of a second conductivity type opposite the first conductivity type and laterally adjoining the drift zone at a side of the drift zone opposite the drain region; and forming source regions of the first conductivity type and body contact regions of the second conductivity type in a sidewall of the trench and arranged in an alternating manner along a length of the trench, using a dopant diffusion process which includes diffusing dopants of both conductivity types from oppositely-doped dopant source layers which are in contact with different regions of the sidewall.Type: GrantFiled: April 13, 2021Date of Patent: July 18, 2023Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Andreas Peter Meiser, Till Schloesser
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Patent number: 11695033Abstract: A microelectronic device comprises: a first electrode; a second electrode located vertically below said first electrode and separated by a dielectric material; and a connection wire electrically connected to said second electrode; wherein said first electrode comprises a notch located vertically above said connection wire.Type: GrantFiled: February 26, 2021Date of Patent: July 4, 2023Assignee: X-FAB DRESDEN GMBH & CO. KGInventor: Denis Reso
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Patent number: 11682696Abstract: A semiconductor device includes a layer stack with first and second semiconductor layers of complementary doping types are arranged alternatingly between first and second surfaces of the layer stack. A first semiconductor region adjoins the first semiconductor layers and has a first end arranged in a first device region and extends from the first end into a second device region. Second semiconductor regions adjoin at least one of the second semiconductor layers. A third semiconductor region adjoins the first semiconductor layers. The first semiconductor region extends from the first device region into the second device region and is spaced apart from the third semiconductor region. The second semiconductor regions are arranged between, and spaced apart from, the third and first semiconductor regions.Type: GrantFiled: May 26, 2021Date of Patent: June 20, 2023Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Ahmed Mahmoud, Franz Hirler, Marco Mueller, Rolf Weis
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Patent number: 11682695Abstract: A semiconductor device includes a layer stack with first semiconductor layers and second semiconductor layers of opposite doping types arranged alternatingly. A first semiconductor region of a first semiconductor device adjoins the first semiconductor layers, and has a first end arranged in a first region of the first semiconductor device and extends from the first end into a second region of the first semiconductor device. Second semiconductor regions of the first semiconductor device adjoin at least one of the second semiconductor layers. A third semiconductor region of the first semiconductor device adjoins the first semiconductor layers. The first semiconductor region extends from the first region into the second region and is spaced apart from the third semiconductor region. The second semiconductor regions are arranged between, and spaced apart from, the third and first semiconductor regions.Type: GrantFiled: May 26, 2021Date of Patent: June 20, 2023Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Ahmed Mahmoud, Franz Hirler, Marco Mueller, Rolf Weis
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Patent number: 11610986Abstract: A power semiconductor switch includes an active cell region with a drift region, an edge termination region, and IGBT cells within the active cell region. Each IGBT cell includes trenches that extend into the drift region and laterally confine mesas. At least one control trench has a control electrode for controlling the load current. At least one dummy trench has a dummy electrode electrically coupled to the control electrode. At least one further trench has a further trench electrode. At least one active mesa is electrically connected to a first load terminal within the active cell region. Each control trench is arranged adjacent to no more than one active mesa. At least one inactive mesa is adjacent to the dummy trench. A cross-trench structure merges each control trench, dummy trench and further trench to each other. The cross-trench structure overlaps at least partially along a vertical direction with the trenches.Type: GrantFiled: June 17, 2021Date of Patent: March 21, 2023Assignees: Infineon Technologies AG, Infineon Technologies Dresden GmbH & Co. KGInventors: Matteo Dainese, Alexander Philippou, Markus Beninger-Bina, Ingo Dirnstorfer, Erich Griebl, Christian Jaeger, Johannes Georg Laven, Caspar Leendertz, Frank Dieter Pfirsch
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Patent number: 11581429Abstract: A power semiconductor switch includes an active cell region with a drift region, an edge termination region, and IGBT cells within the active cell region. Each IGBT cell includes trenches that extend into the drift region and laterally confine mesas. At least one control trench has a control electrode for controlling the load current. At least one dummy trench has a dummy electrode electrically coupled to the control electrode. At least one further trench has a further trench electrode. At least one active mesa is electrically connected to a first load terminal within the active cell region. Each control trench is arranged adjacent to no more than one active mesa. At least one inactive mesa is adjacent to the dummy trench. A cross-trench structure merges each control trench, dummy trench and further trench to each other. The cross-trench structure overlaps at least partially along a vertical direction with the trenches.Type: GrantFiled: June 17, 2021Date of Patent: February 14, 2023Assignees: Infineon Technologies AG, Infineon Technologies Dresden GmbH & Co. KGInventors: Matteo Dainese, Alexander Philippou, Markus Beninger-Bina, Ingo Dirnstorfer, Erich Griebl, Christian Jaeger, Johannes Georg Laven, Caspar Leendertz, Frank Dieter Pfirsch
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Patent number: 11527670Abstract: A photon avalanche diode includes a semiconductor body having a first side and a second side opposite the first side, a primary doped region of a first conductivity type at the first side of the semiconductor body, a primary doped region of a second conductivity type opposite the first conductivity type at the second side of the semiconductor body, an enhancement region of the second conductivity type below and adjoining the primary doped region of the first conductivity type, the enhancement region forming an active pn-junction with the primary doped region of the first conductivity type, and a collection region of the first conductivity type interposed between the enhancement region and the primary doped region of the second conductivity type and configured to transport a photocarrier generated in the collection region or the primary doped region of the second conductivity type towards the enhancement region.Type: GrantFiled: February 13, 2020Date of Patent: December 13, 2022Assignee: Infineon Technologies Dresden GmbH & Co. KGInventor: Henning Feick
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Patent number: 11527608Abstract: A method for forming a superjunction transistor device includes: forming a plurality of semiconductor layers one on top of the other; implanting dopant atoms of a first doping type into each semiconductor layer to form first implanted regions in each semiconductor layer; implanting dopant atoms of a second doping type into each semiconductor layer to form second implanted regions in each semiconductor layer. Each of implanting the dopant atoms of the first and second doping types into each semiconductor layer includes forming a respective implantation mask on a respective surface of each semiconductor layer, and at least one of forming the first implanted regions and the second implanted regions in at least one of the semiconductor layers includes a tilted implantation process which uses an implantation vector that is tilted by a tilt angle relative to a normal of the respective horizontal surface of the respective semiconductor layer.Type: GrantFiled: March 8, 2021Date of Patent: December 13, 2022Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Franz Hirler, Wolfgang Jantscher, Yann Ruet, Armin Willmeroth
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Patent number: 11508841Abstract: A semiconductor device includes a semiconductor body having a first surface and second surface opposite to the first surface in a vertical direction, and a plurality of transistor cells at least partly integrated in the semiconductor body. Each transistor cell includes at least two source regions, first and second gate electrodes spaced apart from each other in a first horizontal direction and arranged adjacent to and dielectrically insulated from a continuous body region, a drift region separated from the at least two source regions by the body region, and at least three contact plugs extending from the body region towards a source electrode in the vertical direction. The at least three contact plugs are arranged successively between the first and second gate electrodes. Only the two outermost contact plugs that are arranged closest to the first and second gate electrodes, respectively, directly adjoin at least one of the source regions.Type: GrantFiled: June 4, 2020Date of Patent: November 22, 2022Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Franz Hirler, Christian Fachmann, Winfried Kaindl, Hans Weber
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Patent number: 11493532Abstract: A method produces a micromechanical sensor element having a first electrode and a second electrode, wherein electrode wall surfaces of the first and the second electrodes are situated opposite one another in a first direction and form a capacitance, wherein one of the first electrode or the second electrode is movable in a second direction, in response to a variable to be detected, and a second one of the first electrode and the second electrode is fixed. The method includes producing a cavity in a semiconductor substrate, the cavity being closed by a doped semiconductor layer; producing the first and the second electrodes in the semiconductor layer, including modifying the electrode wall surface of the first electrode in order to have a smaller extent in the second direction than the electrode wall surface of the second electrode.Type: GrantFiled: August 19, 2020Date of Patent: November 8, 2022Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Erhard Landgraf, Stephan Gerhard Albert, Steffen Bieselt, Sebastian Pregl, Matthias Rose
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Patent number: 11448262Abstract: A clutch as used, for example, in vehicle drives, in particular rail vehicle drives. A clutch is specified, by way of which the electric contact between the drive side and the output side of the clutch is prevented reliably, and a simple and inexpensive method for the production thereof is also specified. The problem is solved by way of a clutch, at least consisting of a clutch half on the drive side and a clutch half on the output side, wherein at least one clutch half has at least two hollow cylinders which are arranged above one another and are arranged in a bore of the clutch half, wherein the second hollow cylinder consists of electrically insulating material, and wherein at least the first hollow cylinder, at least on its outer circumferential surface, and at least the inner circumferential surface of the bore have knurling at least in part.Type: GrantFiled: July 12, 2018Date of Patent: September 20, 2022Assignee: KWD Kupplungswerk Dresden GmbHInventors: Martin Krondorf, Thomas Hähnel
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Patent number: 11430781Abstract: In an embodiment, a semiconductor die includes a transistor device that has a cell field and an edge termination region, a source pad arranged on the cell field, a gate pad laterally arranged laterally adjacent the cell field and in the edge termination region, a shielding region laterally surrounding the cell field, the shielding region including a non-depletable doped. The polysilicon ESD protection diode is arranged laterally between the gate pad and the source pad and vertically above at least a portion of the shielding region, and includes at least two separate sections that are electrically coupled in parallel between the gate pad and the source pad. The sections are laterally spaced apart by a gap situated at a corner of the gate pad.Type: GrantFiled: January 23, 2020Date of Patent: August 30, 2022Assignee: Infineon Technologies Dresden GmbH & Co. KGInventor: Joachim Weyers
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Patent number: 11424358Abstract: A semiconductor device includes a semiconductor body comprising a first surface, a second surface opposite to the first surface, an active region, and an edge region surrounding the active region in a horizontal plane. The semiconductor device further includes a plurality of transistor cells at least partly integrated in the active region. Each transistor cell includes a drift region separated from a source region by a body region, and a gate electrode dielectrically insulated from the body region. The semiconductor device also includes a sensor device having a first sensor region of a first doping type integrated in the edge region. The first sensor region is electrically coupled to a first contact pad and to a second contact pad. Each contact pad is arranged either on the first surface or on the second surface. The sensor device at least partially extends around the active region.Type: GrantFiled: April 2, 2020Date of Patent: August 23, 2022Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Joachim Weyers, Andreas Boehm, Franz Hirler, Enrique Vecino Vazquez
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Patent number: 11408760Abstract: The invention relates to devices for detecting media. These are distinguished, in particular, by the fact that simply the medium can be detected and/or properties of the or a medium can be determined or monitored. For this purpose, a heating sensor comprising a heating device and at least one p-n junction operated in the forward direction and a reference sensor comprising at least one p-n junction operated in the forward direction are spaced apart from one another. The heating device and the p-n junctions are connected to a control device, which is a control device ascertaining the presence and/or at least one property of the medium from the thermal properties of the medium.Type: GrantFiled: June 18, 2018Date of Patent: August 9, 2022Assignee: KYOCERA AVX Components (Dresden) GmbHInventors: Aldo Bojarski, Ralph Adner, Lutz Uhlemann, Werner Fichte
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Patent number: 11370463Abstract: The application relates to roof segments for constructing a roof of a carriage body for a rail vehicle for passenger transport, in particular for use in short-haul operation, such as underground and suburban trains, the rail vehicles or the train units formed by same must be accelerated and decelerated at short intervals. The roof segments are designed in the form of plates, shells or half-shells and consist of an outer wall and an inner wall at a distance to same. At least two roof segments are configured in such a way that the protruding region of the outer wall or inner wall of one roof segment is interlockingly, force-lockingly and/or integrally connected to the non-protruding region of the outer wall or inner wall of the neighbouring roof segment. The roof segments consist at least partially of a fibre-reinforced plastic composite.Type: GrantFiled: February 8, 2018Date of Patent: June 28, 2022Assignees: CRRC QINGDAO SIFANG CO., LTD., CG RAIL—CHINESISCH-DEUTSCHES FORSCHUNGS—UND ENTWICKLUNGSZENTRUM FÜR BAHN—UND VERKEHRSTECHNIK DRESDEN GMBHInventors: Shaoqing Liu, Zhicheng Guo, Zhengyu Song, Dongyuan Liu, Jiajie He, Qinshu Tu, Werner Hufenbach, Andreas Ulbricht
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Patent number: 11352027Abstract: The invention relates to a head module for a rail vehicle, said head module being suitable to be detachably fixed to the front face of a subsequent railcar unit without additional underframe. The head module consists of an inner and an outer shell and includes three systems which convert, in the event of a crash, the collision energy into a deformation one after the other or simultaneously and substantially independently of another.Type: GrantFiled: February 2, 2018Date of Patent: June 7, 2022Assignees: CRRC QINGDAO SIFANG CO., LTD., CG RAIL—CHINESISCH-DEUTSCHES FORSCHUNGS—UND ENTWICKLUNGSZENTRUM FÜR BAHN—UND VERKEHRSTECHNIK DRESDEN GMBHInventors: Sansan Ding, Yuanmu Zhong, Hengkui Li, Xiangang Song, Lu Jin, Qinfeng Wang, Bingsong Wang, Werner Hufenbach, Andreas Ulbricht
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Patent number: 11355578Abstract: We disclose herein a high voltage device comprising: a first electrode; a second electrode disposed underneath and spaced from the first electrode; and a dielectric layer disposed between the first and second electrodes, wherein the first electrode extends further in at least one lateral direction in respect of the second electrode.Type: GrantFiled: January 22, 2020Date of Patent: June 7, 2022Assignee: X-FAB DRESDEN GMBH & CO.KGInventors: Victor Sizov, Denis Reso
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Patent number: 11342467Abstract: An electronic circuit is disclosed. The electronic circuit includes: a first transistor device integrated in an inner region of a first semiconductor body; a level shifter integrated in a level shifter region of the first semiconductor body, the level shifter region located in an edge region surrounding the inner region of the semiconductor body; and a drive circuit integrated in a drive circuit region in the edge region of the first semiconductor body, the drive circuit configured to receive a first input signal from a first input and drive the first transistor device based on the first input signal, the drive circuit region arranged closer to the inner region than the level shifter region.Type: GrantFiled: October 20, 2021Date of Patent: May 24, 2022Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Richard Hensch, Franz Stueckler, Stefan Tegen, Rolf Weis
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Patent number: 11331865Abstract: The application relates to a method for producing a hollow support from a fiber composite material, to a core designed as a hollow body, to the use of said core, and to the use of said hollow support made from fiber composite material.Type: GrantFiled: February 1, 2018Date of Patent: May 17, 2022Assignees: CRRC QINGDAO SIFANG CO., LTD., CG RAIL-CHINESISCH-DEUTSCHES FORSCHUNGS-UND ENTWICKLUNGSZENTRUM FüR BAHN-UND VERKEHRSTECHNIK DRESDEN GMBHInventors: Sansan Ding, Xiaojun Deng, Yuwen Liu, Xu Chen, Li Dong, Mao Cai, Xu Zhang, Werner Hufenbach, Andreas Ulbricht
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Patent number: 11322587Abstract: A power semiconductor device includes a control cell for controlling a load current. The control cell is electrically connected to a load terminal structure on one side and to a drift region on another side. The drift region includes dopants of a first conductivity type. The control cell includes: a mesa extending along a vertical direction and including: a contact region having dopants of the first conductivity type or of a second conductivity type and electrically connected to the load terminal structure, and a channel region coupled to the drift region; a control electrode configured to induce a conduction channel in the channel region; and a contact plug including a doped semiconductive material and arranged in contact with the contact region. An electrical connection between the contact region and load terminal structure is established by the contact plug, a portion of which projects beyond lateral boundaries of the mesa.Type: GrantFiled: June 13, 2020Date of Patent: May 3, 2022Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Hans-Juergen Thees, Stefan Loesch, Marc Probst, Tom Richter, Olaf Storbeck