Patents Assigned to Dresden GmbH
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Patent number: 12382678Abstract: A transistor arrangement is disclosed. The transistor arrangement includes a first transistor device and a second transistor device. The first transistor device and the second transistor device are connected in series and integrated in a common semiconductor body. The first transistor device is a lateral superjunction transistor device and is integrated in a first device region of the semiconductor body. The second transistor device is a lateral transistor device and is integrated in at least one second device region of the semiconductor body. The at least one second device region is spaced apart from the first device region.Type: GrantFiled: May 17, 2022Date of Patent: August 5, 2025Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Rolf Weis, Franz Hirler, Katarzyna Kowalik-Seidl, Marco Mueller, Anthony Sanders
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Patent number: 12376334Abstract: A semiconductor device includes a semiconductor body having first and second opposing surfaces in a vertical direction, and transistor cells at least partly integrated in the semiconductor body. Each transistor cell includes first and second source regions, first and second body regions, a drift region separated from the respective source region by the corresponding body region, a first gate electrode, and a control electrode. The drift region is arranged between the first and the second body region in a horizontal direction that is perpendicular to the vertical direction and extends from the first surface into the semiconductor body in the vertical direction. The first gate electrode is configured to provide a control signal for switching the transistor cell. The control electrode is configured to provide a control signal for controlling a JFET formed by the first body region, the drift region, and the second body region.Type: GrantFiled: October 14, 2022Date of Patent: July 29, 2025Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Katarzyna Kowalik-Seidl, Armin Tilke, Markus Wiesinger
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Patent number: 12359994Abstract: In some implementations a semiconductor die comprises a semiconductor chip. The semiconductor chip comprises a piezoresistive pressure sensor element and at least one capacitive acceleration sensor element. The piezoresistive pressure sensor element is arranged to the side of the capacitive acceleration sensor element. In some implementations, a method for producing a semiconductor die includes applying an insulation layer to the semiconductor wafer. A section of the monocrystalline cover layer may be exposed by structuring the insulation layer. A semiconductor layer having a monocrystalline section and a polycrystalline section may be generated by deposition of a semiconductor material.Type: GrantFiled: August 25, 2021Date of Patent: July 15, 2025Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Steffen Bieselt, Dirk Meinhold
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Patent number: 12347688Abstract: A lateral high-voltage transistor includes a semiconductor substrate, a body region formed by dopant implantation in the semiconductor substrate, the body region having a lateral boundary, a dielectric layer arranged over the semiconductor substrate, and a structured gate layer arranged over the dielectric layer. The structured gate layer overlaps the body region in the semiconductor substrate in a zone between the lateral boundary of the body region and a gate edge of the structured gate layer. The lateral boundary of the body region is a boundary defined by dopant implantation.Type: GrantFiled: January 2, 2024Date of Patent: July 1, 2025Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Achim Gratz, Jürgen Faul, Swapnil Pandey
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Patent number: 12288819Abstract: According to an embodiment of a semiconductor device, the device includes: a transistor or diode device formed in a semiconductor substrate; an insulating material at least partially covering a lateral drift zone of the transistor or diode device or a termination region; and a fill pattern disposed over the lateral drift zone or termination region, the fill pattern having a variable density that follows equipotential lines of an electric field distribution expected between the fill pattern at a surface of the lateral drift zone or termination region during operation of the semiconductor device. Corresponding methods of producing the semiconductor device are also described.Type: GrantFiled: September 20, 2021Date of Patent: April 29, 2025Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Rolf Weis, Ahmed Mahmoud, Marco Mueller
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Patent number: 12266680Abstract: A voltage-controlled switching device includes a drain/drift structure formed in a semiconductor portion with a lateral cross-sectional area AQ, a source/emitter terminal, and an emitter channel region between the drain/drift structure and the source/emitter terminal. A resistive path electrically connects the source/emitter terminal and the emitter channel region. The resistive path has an electrical resistance of at least 0.1 m?*cm2/AQ.Type: GrantFiled: September 28, 2021Date of Patent: April 1, 2025Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Christian Philipp Sandow, Anton Mauder, Franz-Josef Niedernostheide
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Patent number: 12148779Abstract: A device for an image sensor is provided. The device includes a semiconductor device including a photo-sensitive region configured to generate an electric signal based on incident light. Additionally, the device includes an optical element including a first surface for receiving the incident light and a second surface opposite the first surface and turned towards the photo-sensitive region. The first surface and the second surface are tilted by a tilt angle relative to each other so as to modify a direction of propagation of the incident light passing through the optical element towards a center of the photo-sensitive region to compensate for a chief ray angle of the incident light.Type: GrantFiled: August 10, 2021Date of Patent: November 19, 2024Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Dirk Offenberg, Ines Uhlig
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Patent number: 12107152Abstract: The disclosure relates to a semiconductor die with a transistor device, which has a channel region formed in a semiconductor body, a gate region aside the channel region, for controlling a channel formation, a drift region formed in the semiconductor body, and a field electrode in a field electrode trench, which extends from a frontside of the semiconductor body vertically into the drift region, wherein an insulating layer is formed on the frontside of the semiconductor body and a frontside metallization is formed on the insulating layer, and wherein a capacitor electrode is formed in the insulating layer, which is conductively connected to at least a portion of the field electrode.Type: GrantFiled: February 28, 2022Date of Patent: October 1, 2024Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Stefan Tegen, Alessandro Ferrara, Adrian Finney, Matthias Kroenke, Christoph Kubasch, Rolf Weis
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Patent number: 12087816Abstract: A power semiconductor device includes a control cell for controlling a load current and 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 or 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 control a conduction channel in the channel region; and a contact plug including at least one of a doped semiconductive material or metal, 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 horizontally projects beyond lateral boundaries of the mesa.Type: GrantFiled: April 8, 2022Date of Patent: September 10, 2024Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Hans-Juergen Thees, Stefan Loesch, Marc Probst, Tom Richter, Olaf Storbeck
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Patent number: 12057517Abstract: A photon avalanche diode includes: first, second, and third diodes formed in a semiconductor body, the second diode being a photodiode; a main cathode terminal connected to the cathode of the first diode; a main anode terminal connected to the anode of the third diode; an auxiliary cathode terminal connected to the cathode of the second and third diodes; and an auxiliary anode terminal connected to the anode of the first and second diodes. The main anode terminal is electrically connected to ground or a reference potential. The main cathode terminal is electrically connected to a voltage which causes a photocarrier multiplication region to form within the semiconductor body. The auxiliary anode terminal is electrically connected to ground or to a read-out circuit. The auxiliary cathode terminal is electrically connected to a constant bias voltage less than a voltage applied to the main cathode terminal.Type: GrantFiled: November 23, 2022Date of Patent: August 6, 2024Assignee: Infineon Technologies Dresden GmbH & Co. KGInventor: Henning Feick
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Patent number: 12043539Abstract: A sensor system with a first semiconductor die part and with a second semiconductor die part is proposed, wherein the first semiconductor die part has a microelectromechanical sensor element, wherein the second semiconductor die part covers the microelectromechanical sensor element, wherein the second semiconductor die part has a via for electrically contacting the microelectromechanical sensor element, in particular directly. A method for producing a sensor system is also proposed.Type: GrantFiled: April 8, 2022Date of Patent: July 23, 2024Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Dirk Meinhold, Steffen Bieselt, Claudia Hengst, Daniel Koehler, Erhard Landgraf, Sebastian Pregl
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Patent number: 12002812Abstract: A method of producing a semiconductor component includes: providing a silicon-based substrate; depositing an oxide layer on the silicon-based substrate; depositing a polycrystalline silicon layer on the oxide layer and simultaneously a crystalline silicon layer on the silicon-based substrate; producing an electronic component based on the polycrystalline silicon layer; and mounting a glass- or silicon-based lid on the crystalline silicon layer.Type: GrantFiled: February 23, 2022Date of Patent: June 4, 2024Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Dirk Meinhold, Steffen Bieselt
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Patent number: 11996478Abstract: A transistor device includes a semiconductor body having a substantially planar main surface, a source region extending to the main surface and having a first conductivity type, a body region extending to the main surface and having a second conductivity type, a drain region extending to the main surface and having the first conductivity type, a drift region having the first conductivity type, and a gate electrode arranged on the main surface laterally between the source and drain regions and electrically insulated from the semiconductor body by an insulation structure. The insulation structure includes a gate dielectric arranged on the main surface and a shallow trench arranged in the drift region and filled with electrically insulating material. The shallow trench has at least partly a wedge shape and the electrically insulating material has an upper surface that is substantially planar and extends substantially parallel to the main surface.Type: GrantFiled: December 16, 2021Date of Patent: May 28, 2024Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Rolf Weis, Ahmed Mahmoud
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Patent number: 11964443Abstract: The invention relates to a method for connecting a connection piece to a U-shaped ring anchor for a head module for rail vehicles, the head module consisting predominantly of fiber-reinforced plastic material and having an outer shell and the ring anchor consisting of fiber-reinforced plastic material and being arranged in the roof region of the outer shell as a stiffening means. According to the method, connecting elements are fed through the dry or matrix-material-impregnated, unconsolidated fiber reinforcement structure of the ring anchor.Type: GrantFiled: February 5, 2018Date of Patent: April 23, 2024Assignees: CRRC QINGDAO SIFANG CO., LTD., CG RAIL—CHINESISCH-DEUTSCHES FORSCHUNGS- UND ENTWICKLUNGSZENTRUM FÜR BAHN- UND VERKEHRSTECHNIK DRESDEN GMBHInventors: Jian Du, Peng Lin, Dongfang Chen, Zhengmin Zhang, Yonggui Zhang, Chunpeng Cao, Werner Hufenbach, Andreas Ulbricht
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Patent number: 11949006Abstract: A power semiconductor device includes: first and second trenches extending from a surface of a semiconductor body along a vertical direction and laterally confining a mesa region along a first lateral direction; source and body regions in the mesa region electrically connected to a first load terminal; and a first insulation layer having a plurality of insulation blocks, two of which laterally confine a contact hole. The first load terminal extends into the contact hole to contact the source and body regions at the mesa region surface. A first insulation block laterally overlaps with the first trench. A second insulation block laterally overlaps with the second trench. The first insulation block has a first lateral concentration profile of a first implantation material of the source region along the first lateral direction that is different from a corresponding second lateral concentration profile for the second insulation block.Type: GrantFiled: May 20, 2021Date of Patent: April 2, 2024Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Markus Beninger-Bina, Matteo Dainese, Ingo Dirnstorfer, Erich Griebl, Johannes Georg Laven, Anton Mauder, Hans-Joachim Schulze
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Patent number: 11948802Abstract: A device includes a thinned semiconductor substrate having a first side and a second side opposite to the first side; and at least one radio frequency device at the first side, wherein the second side of the thinned semiconductor substrate is processed to reduce leakage currents or to improve a radio frequency linearity of the at least one radio frequency device through Bosch etching.Type: GrantFiled: December 22, 2021Date of Patent: April 2, 2024Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Hans Taddiken, Christian Butschkow, Andrea Cattaneo, Henning Feick, Dominik Heiss, Christoph Kadow, Uwe Seidel, Valentyn Solomko, Anton Steltenpohl
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Patent number: 11887852Abstract: A method of manufacturing a lateral transistor is described. The method includes providing a semiconductor substrate. A dielectric layer is formed over the semiconductor substrate. A gate layer is formed over the dielectric layer. A photoresist layer is applied over the gate layer. The photoresist layer is opened by lithography to form a first opening of a first opening size in the photoresist layer. The first opening is transferred into a second opening of a second opening size, the second opening being either formed in the photoresist layer or in an auxiliary layer. A body region is formed in the semiconductor substrate by dopant implantation. Further the gate layer is structured to form a gate edge. An overlap between the structured gate layer and the body region is controlled by an offset between the first opening size and the second opening size.Type: GrantFiled: June 24, 2021Date of Patent: January 30, 2024Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Achim Gratz, Juergen Faul, Swapnil Pandey
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Patent number: 11888061Abstract: A power semiconductor device includes: a semiconductor body; a control electrode at least partially on or inside the semiconductor body; elevated source regions in the semiconductor body adjacent to the control electrode; recessed body regions adjacent to the elevated source regions; and a dielectric layer arranged on a portion of a surface of the semiconductor body and defining a contact hole. The contact hole is at least partially filled with a conductive material establishing an electrical contact with at least a portion of the elevated source regions and at least a portion of the recessed body regions. At least one first contact surface between at least one elevated source region and the dielectric layer extends in a first horizontal plane. At least one second contact surface between at least one recessed body region and the dielectric layer extends in a second horizontal plane located vertically below the first horizontal plane.Type: GrantFiled: January 17, 2022Date of Patent: January 30, 2024Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Erich Griebl, Markus Beninger-Bina, Matteo Dainese, Ingo Dirnstorfer
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Patent number: 11869919Abstract: A sensor device includes: a semiconductor substrate having a sensing region which extends vertically below a main surface region of the semiconductor substrate into the substrate; a semiconductor capping layer that extends vertically below the main surface region into the substrate; a buried deep trench structure that extends vertically below the capping layer into the substrate and laterally relative to the sensing region, the buried deep trench structure including a doped semiconductor layer that extends from a surface region of the buried deep trench structure into the substrate; a trench doping region that extends from the doped semiconductor layer of the buried deep trench structure into the substrate; and electronic circuitry for the sensing region in a capping region of the substrate vertically above the buried deep trench structure. Methods of manufacturing the sensor device are also provided.Type: GrantFiled: November 25, 2020Date of Patent: January 9, 2024Assignee: Infineon Technologies Dresden GmbH & Co. KGInventors: Magali Glemet, Boris Binder, Henning Feick, Dirk Offenberg
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Publication number: 20230295832Abstract: A crystal-growth apparatus (10, 10’,10”) and a crystal-growth method for growing a crystal (21) from a molten feed material (23) are presented, where in addition to a molten-zone heater, at least one afterheater laser (5) is arranged to heat an extended afterheater zone (50), the afterheater zone (50) at least partly overlapping a solidification zone (210) adjacent to the molten zone (230). The crystal-growth apparatus (10, 10’,10”) and the crystal-growth method may be used for thermal treatment to reduce crack formation or thermal stress in grown crystals (21).Type: ApplicationFiled: July 20, 2021Publication date: September 21, 2023Applicant: SCIDRE SCIENTIFIC INSTRUMENTS DRESDEN GMBHInventor: Robert SCHOENDUBE