Patents by Inventor Holger Ruething
Holger Ruething has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11387359Abstract: A power semiconductor device having a power semiconductor transistor configuration includes: a semiconductor body having a front side coupled to a first load terminal structure, a backside coupled to a second load terminal structure, and a lateral chip edge; an active region for conducting a load current in a conducting state; and an edge termination region separating the active region and lateral chip edge. At the front-side, the edge termination region includes a protection region devoid of any metallic structure, unless the metallic structure is electrically shielded from below by a polysilicon layer that extends further towards the lateral chip edge than the metallic structure by a lateral distance of at least 20 ?m. In a blocking state, the protection region accommodates a voltage change of at least 90% of a blocking voltage inside the semiconductor body in a lateral direction from the active region towards the lateral chip edge.Type: GrantFiled: December 13, 2019Date of Patent: July 12, 2022Assignee: Infineon Technologies AGInventors: Oliver Humbel, Josef-Georg Bauer, Jens Brandenburg, Diana Car, Philipp Sebastian Koch, Angelika Koprowski, Sebastian Kremp, Thomas Kurzmann, Erwin Lercher, Holger Ruething
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Patent number: 10712208Abstract: A semiconductor die includes a single power transistor or power diode, a temperature sense diode formed close enough to the single power transistor or power diode to measure an accurate temperature. The temperature sense diode comprises first and second diodes or strings of diodes. A separate integrated circuit is operable to measure first and second voltage drops of both the first and second diodes or strings of diodes using same magnitude currents, and estimate the temperature of the single power transistor or power diode based on the difference between the first and second forward voltage drop measurements. An overall pn junction area of the first diode or string of first diodes is different from an overall pn junction area of the second diode or string of second diodes.Type: GrantFiled: September 26, 2018Date of Patent: July 14, 2020Assignee: Infineon Technologies AGInventors: Andreas Kiep, Holger Ruething, Frank Wolter
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Publication number: 20200194585Abstract: A power semiconductor device having a power semiconductor transistor configuration includes: a semiconductor body having a front side coupled to a first load terminal structure, a backside coupled to a second load terminal structure, and a lateral chip edge; an active region for conducting a load current in a conducting state; and an edge termination region separating the active region and lateral chip edge. At the front-side, the edge termination region includes a protection region devoid of any metallic structure, unless the metallic structure is electrically shielded from below by a polysilicon layer that extends further towards the lateral chip edge than the metallic structure by a lateral distance of at least 20 ?m. In a blocking state, the protection region accommodates a voltage change of at least 90% of a blocking voltage inside the semiconductor body in a lateral direction from the active region towards the lateral chip edge.Type: ApplicationFiled: December 13, 2019Publication date: June 18, 2020Inventors: Oliver Humbel, Josef-Georg Bauer, Jens Brandenburg, Diana Car, Philipp Sebastian Koch, Angelika Koprowski, Sebastian Kremp, Thomas Kurzmann, Erwin Lercher, Holger Ruething
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Publication number: 20190025132Abstract: A semiconductor die includes a single power transistor or power diode, a temperature sense diode formed close enough to the single power transistor or power diode to measure an accurate temperature. The temperature sense diode comprises first and second diodes or strings of diodes. A separate integrated circuit is operable to measure first and second voltage drops of both the first and second diodes or strings of diodes using same magnitude currents, and estimate the temperature of the single power transistor or power diode based on the difference between the first and second forward voltage drop measurements. An overall pn junction area of the first diode or string of first diodes is different from an overall pn junction area of the second diode or string of second diodes.Type: ApplicationFiled: September 26, 2018Publication date: January 24, 2019Inventors: Andreas Kiep, Holger Ruething, Frank Wolter
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Patent number: 10132696Abstract: A semiconductor die includes a discrete semiconductor device and at least one diode. The temperature of the discrete semiconductor device is determined by measuring a first forward voltage drop of the at least one diode under a first test condition, measuring a second forward voltage drop of the at least one diode under a second test condition and estimating the temperature of the discrete semiconductor device based on the difference between the first and second forward voltage drop measurements.Type: GrantFiled: July 11, 2014Date of Patent: November 20, 2018Assignee: Infineon Technologies AGInventors: Andreas Kiep, Holger Ruething, Frank Wolter
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Patent number: 9543405Abstract: A method of manufacturing a reduced free-charge carrier lifetime semiconductor structure includes forming a plurality of transistor gate structures in trenches arranged in a semiconductor substrate, forming a body region between adjacent ones of the transistor gate structures and forming an end-of-range irradiation region between adjacent ones of the transistor gate structures, the end-of-range irradiation region having a plurality of vacancies.Type: GrantFiled: March 28, 2014Date of Patent: January 10, 2017Assignee: Infineon Technologies AGInventors: Holger Ruething, Hans-Joachim Schulze, Frank Hille, Frank Pfirsch
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Patent number: 9478613Abstract: A semiconductor system for a current sensor in a power semiconductor includes: on a substrate, a multiple arrangement of transistor cells having an insulated gate electrode, whose emitter terminals are connected in a first region via a first conductive layer to at least one output terminal and whose emitter terminals are connected in a second region via a second conductive layer to at least one sensor terminal, which is situated outside of a first cell region boundary, which encloses the transistor cells of the first region and the second region, a trench structure belonging to the first cell region boundary being developed between the transistor cells of the second region and the sensor terminal.Type: GrantFiled: January 25, 2013Date of Patent: October 25, 2016Assignee: Robert Bosch GmbHInventors: Christian Pluntke, Timm Hoehr, Thomas Jacke, Frank Wolter, Holger Ruething, Guenther Koffler
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Patent number: 9312334Abstract: A semiconductor component is disclosed. One embodiment provides a semiconductor body having a cell region with at least one zone of a first conduction type and at least one zone of a second conduction type in a rear side. A drift zone of the first conduction type in the cell region is provided. The drift zone contains at least one region through which charge carriers flow in an operating mode of the semiconductor component in one polarity and charge carriers do not flow in an operating mode of the semiconductor component in an opposite polarity.Type: GrantFiled: September 24, 2014Date of Patent: April 12, 2016Assignee: Infineon Technologies Austria AGInventors: Holger Ruething, Frank Pfirsch, Armin Willmeroth, Frank Hille, Hans-Joachim Schulze
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Publication number: 20160011058Abstract: A semiconductor die includes a discrete semiconductor device and at least one diode. The temperature of the discrete semiconductor device is determined by measuring a first forward voltage drop of the at least one diode under a first test condition, measuring a second forward voltage drop of the at least one diode under a second test condition and estimating the temperature of the discrete semiconductor device based on the difference between the first and second forward voltage drop measurements.Type: ApplicationFiled: July 11, 2014Publication date: January 14, 2016Inventors: Andreas Kiep, Holger Ruething, Frank Wolter
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Publication number: 20150008480Abstract: A semiconductor component is disclosed. One embodiment provides a semiconductor body having a cell region with at least one zone of a first conduction type and at least one zone of a second conduction type in a rear side. A drift zone of the first conduction type in the cell region is provided. The drift zone contains at least one region through which charge carriers flow in an operating mode of the semiconductor component in one polarity and charge carriers do not flow in an operating mode of the semiconductor component in an opposite polarity.Type: ApplicationFiled: September 24, 2014Publication date: January 8, 2015Inventors: Holger Ruething, Frank Pfirsch, Armin Willmeroth, Frank Hille, Hans-Joachim Schulze
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Patent number: 8860133Abstract: A semiconductor component is disclosed. One embodiment provides a semiconductor body having a cell region with at least one zone of a first conduction type and at least one zone of a second conduction type in a rear side. A drift zone of the first conduction type in the cell region is provided. The drift zone contains at least one region through which charge carriers flow in an operating mode of the semiconductor component in one polarity and charge carriers do not flow in an operating mode of the semiconductor component in an opposite polarity.Type: GrantFiled: December 20, 2012Date of Patent: October 14, 2014Assignee: Infineon Technologies Austria AGInventors: Holger Ruething, Frank Pfirsch, Armin Willmeroth, Frank Hille, Hans-Joachim Schulze
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Publication number: 20140213022Abstract: A method of manufacturing a reduced free-charge carrier lifetime semiconductor structure includes forming a plurality of transistor gate structures in trenches arranged in a semiconductor substrate, forming a body region between adjacent ones of the transistor gate structures and forming an end-of-range irradiation region between adjacent ones of the transistor gate structures, the end-of-range irradiation region having a plurality of vacancies.Type: ApplicationFiled: March 28, 2014Publication date: July 31, 2014Inventors: Holger Ruething, Hans-Joachim Schulze, Frank Hille, Frank Pfirsch
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Patent number: 8478559Abstract: One embodiment provides a semiconductor chip including a semiconductor body and a power semiconductor component integrated therein. The power semiconductor component includes a load electrode zone arranged on a first surface of the semiconductor body, a control electrode zone arranged on the first surface, the control electrode zone being electrically insulated from the load electrode zone, and a resistance track arranged on the load electrode zone and the control electrode zone. The resistance track ensures an electrical connection between the load electrode zone and the control electrode zone.Type: GrantFiled: March 19, 2012Date of Patent: July 2, 2013Assignee: Infineon Technologies AGInventors: Patrick Baginski, Reinhold Bayerer, Holger Ruething, Daniel Domes
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Patent number: 8344415Abstract: A semiconductor component is disclosed. One embodiment provides a semiconductor body having a cell region with at least one zone of a first conduction type and at least one zone of a second conduction type in a rear side. A drift zone of the first conduction type in the cell region is provided. The drift zone contains at least one region through which charge carriers flow in an operating mode of the semiconductor component in one polarity and charge carriers do not flow in an operating mode of the semiconductor component in an opposite polarity.Type: GrantFiled: October 25, 2007Date of Patent: January 1, 2013Assignee: Infineon Technologies Austria AGInventors: Holger Ruething, Frank Pfirsch, Armin Willmeroth, Frank Hille, Hans-Joachim Schulze
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Publication number: 20120175780Abstract: One embodiment provides a semiconductor chip including a semiconductor body and a power semiconductor component integrated therein. The power semiconductor component includes a load electrode zone arranged on a first surface of the semiconductor body, a control electrode zone arranged on the first surface, the control electrode zone being electrically insulated from the load electrode zone, and a resistance track arranged on the load electrode zone and the control electrode zone. The resistance track ensures an electrical connection between the load electrode zone and the control electrode zone.Type: ApplicationFiled: March 19, 2012Publication date: July 12, 2012Applicant: INFINEON TECHNOLOGIES AGInventors: Patrick Baginski, Reinhold Bayerer, Holger Ruething, Daniel Domes
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Patent number: 8155916Abstract: One embodiment provides a circuit arrangement integrated in a semiconductor body. At least one power semiconductor component integrated in the semiconductor body and having a control connection and a load connection is provided. A resistance component is thermally coupled to the power semiconductor component and likewise integrated into the semiconductor body and arranged between the control connection and the load connection of the power semiconductor component. The resistance component has a temperature-dependent resistance characteristic curve. A driving and evaluation unit is designed to evaluate the current through the resistance component or the voltage drop across the resistance component and provides a temperature signal dependent thereon.Type: GrantFiled: July 7, 2008Date of Patent: April 10, 2012Assignee: Infineon Technologies AGInventors: Patrick Baginski, Reinhold Bayerer, Holger Ruething, Daniel Domes
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Patent number: 7932583Abstract: According to one embodiment, a semiconductor device comprises a body of a first conductivity type having a source region and a channel, the body being in contact with a top contact layer. The device also comprises a gate arranged adjacent the channel and a drift zone of a second conductivity type arranged between the body and a bottom contact layer. An integrated diode is formed partially by a first zone of the first conductivity type within the body and being in contact with the top contact layer and a second zone of the second conductivity type being in contact with the bottom contact layer. A reduced charge carrier concentration region is formed in the drift zone having a continuously increasing charge carrier lifetime in the vertical direction so that the charge carrier lifetime is lowest near the body and highest near the bottom contact layer.Type: GrantFiled: May 13, 2008Date of Patent: April 26, 2011Assignee: Infineon Technologies Austria AGInventors: Holger Ruething, Hans-Joachim Schulze, Frank Hille, Frank Pfirsch
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Patent number: 7880200Abstract: A semiconductor device and production method is disclosed. In one embodiment, the semiconductor device includes a first electrode and a second electrode, located on surfaces of a semiconductor body, and an insulated gate electrode. The semiconductor body has a contact groove for the first electrode in an intermediate oxide layer. Highly doped zones of a first conduction type are located in edge regions of the source connection zone. Below the highly doped zones of the first conduction type, there are highly doped zones of a body zone with a complementary conduction type. In a central region of the source connection zone, the body zone has a net charge carrier concentration with a complementary conduction type which is lower than the charge carrier concentration in the edge regions of the source connection zone.Type: GrantFiled: September 28, 2007Date of Patent: February 1, 2011Assignee: Infineon Technologies Austria AGInventors: Frank Hille, Carsten Schaeffer, Frank Pfirsch, Holger Ruething
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Publication number: 20100117117Abstract: According to one embodiment, a power semiconductor device comprises a semiconductor substrate. A transistor gate structure is arranged in a trench formed in the semiconductor substrate. A body region of a first conductivity type is arranged adjacent the transistor gate structure and a first highly-doped region of a second conductivity type is arranged in an upper portion of the body region. A drift zone of the second conductivity type is arranged below the body region and a second highly-doped region of the second conductivity type is arranged below the drift zone. An end-of-range irradiation region is arranged adjacent the transistor gate structure and has a plurality of vacancies. In some embodiments, at least some of the vacancies are occupied by metals.Type: ApplicationFiled: November 10, 2008Publication date: May 13, 2010Applicant: INFINEON TECHNOLOGIES AGInventors: Holger Ruething, Hans-Joachim Schulze, Frank Hille, Frank Pfirsch
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Publication number: 20100001785Abstract: One embodiment provides a circuit arrangement integrated in a semiconductor body. At least one power semiconductor component integrated in the semiconductor body and having a control connection and a load connection is provided. A resistance component is thermally coupled to the power semiconductor component and likewise integrated into the semiconductor body and arranged between the control connection and the load connection of the power semiconductor component. The resistance component has a temperature-dependent resistance characteristic curve. A driving and evaluation unit is designed to evaluate the current through the resistance component or the voltage drop across the resistance component and provides a temperature signal dependent thereon.Type: ApplicationFiled: July 7, 2008Publication date: January 7, 2010Applicant: INFINEON TECHNOLOGIES AGInventors: Patrick Baginski, Reinhold Bayerer, Holger Ruething, Daniel Domes