Patents by Inventor Alfred Kemper
Alfred Kemper 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: 8698053Abstract: A method for producing an electronic device is disclosed. One embodiment provides two soldering partners to be connected to one another at an envisaged joining location and at least one of which includes an electronic component or is formed as such a component, a soldering apparatus having an inductor, and an intermediate plate The soldering partners, the inductor and the intermediate plate are positioned in such a way that the intermediate plate is arranged between the electronic component and the envisaged joining location, on the one hand, and the inductor. The soldering partners are connected at the envisaged joining location by using a solder that is melted by energy emitted by the inductor.Type: GrantFiled: July 26, 2007Date of Patent: April 15, 2014Assignee: Infineon Technologies AGInventor: Alfred Kemper
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Patent number: 8167187Abstract: A method and a device is provided for levelling an area region on the surface of a metal or metallization layer of a carrier. The area region is made planar by the action of a stamp or of a roller.Type: GrantFiled: April 28, 2006Date of Patent: May 1, 2012Assignee: Infineon Technologies AGInventors: Reinhold Bayerer, Thomas Licht, Alfred Kemper
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Patent number: 7986034Abstract: A method for producing a power semiconductor module including forming a contact between a contact region and a contact element as an ultrasonic welding contact via a sonotrode. The ultrasonic welding operation also being used for joining the contact regions with the contact ends and consequently for joining the contacts and the foot regions.Type: GrantFiled: March 21, 2008Date of Patent: July 26, 2011Assignee: Infineon Technologies, AGInventors: Alfred Kemper, Guido Strotmann
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Publication number: 20110017803Abstract: An apparatus for connecting a component with a substrate by means of diffusion soldering in a closed evacuated chamber, wherein the component and the substrate to be connected are displaceable separate from one another in the chamber, and the chamber comprises a combined transfer and pressing unit being displaceable between a current position of the component and a current position of the substrate, for placing and pressing the component on the substrate, and the combined transfer and pressing unit comprises a rotatable element, which, in response to the placing and pressing of the component on the substrate, assumes an angle between the normal of a lower side of the component to be connected and a pressing direction of the component, the angle corresponding to an angle between the normal of a surface area of the substrate to be connected and the pressing direction of the component.Type: ApplicationFiled: July 27, 2010Publication date: January 27, 2011Applicant: INFINEON TECHNOLOGIES AGInventors: Karsten Guth, Alfred Kemper, Roland Speckels
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Patent number: 7793819Abstract: An apparatus for connecting a component with a substrate by means of diffusion soldering in a closed evacuated chamber is disclosed. The component and the substrate to be connected are displaceable separate from one another in the chamber, and the chamber comprises a combined transfer and pressing unit being displaceable between the current position of the component and the current position of the substrate, for placing and pressing the component on the substrate. The combined transfer and pressing unit comprises a rotatable element, which, in response to the placing and pressing of the component on the substrate, assumes an angle between the normal of the lower side of the component to be connected and the pressing direction of the component, the angle corresponding to the angle between the normal of the substrate surface area to be connected and the pressing direction of the component.Type: GrantFiled: March 19, 2007Date of Patent: September 14, 2010Assignee: Infineon Technologies AGInventors: Karsten Guth, Alfred Kemper, Roland Speckels
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Patent number: 7742843Abstract: A method for structured application of a laminatable intermediate layer (9) to a substrate (1) for a semiconductor module, wherein a separating layer is indirectly or directly applied to the substrate (1) over a large surface, the intermediate layer (9) is applied to the substrate (1), including the separating layer(s), by lamination, over a large surface, the intermediate layer (9) is opened in places on the substrate (1), where recesses are provided for the intermediate layer (9), and the separating layer (8) is removed in these places.Type: GrantFiled: October 12, 2006Date of Patent: June 22, 2010Assignee: Infineon Technologies AGInventors: Thomas Licht, Alfred Kemper
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Patent number: 7555832Abstract: A chip carrier member comprises a rotatable chip-receiving element. The rotatable chip-receiving element is rotatable essentially about a point.Type: GrantFiled: March 19, 2007Date of Patent: July 7, 2009Assignee: Infineon Technologies AGInventors: Karsten Guth, Roland Speckels, Alfred Kemper
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Patent number: 7525187Abstract: An apparatus for connecting at least two components contains a lower die and an upper die. The lower die has the components which are to be connected, with the first component supporting the at least second component with an at least partial overlap relative to the first component. The lower die and the upper die can be moved relative to one another. The upper die carries at least two heatable plungers which are connected so as to be able to move relative to one another via a sealed pressure pad. The plungers and the pressure pad have a first flexible layer between them. A second flexible layer is arranged between the upper die and the lower die.Type: GrantFiled: October 13, 2006Date of Patent: April 28, 2009Assignee: Infineon Technologies AGInventors: Roland Speckels, Alfred Kemper
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Publication number: 20080229575Abstract: A chip carrier member comprises a rotatable chip-receiving element. The rotatable chip-receiving element is rotatable essentially about a point.Type: ApplicationFiled: March 19, 2007Publication date: September 25, 2008Inventors: Karsten Guth, Roland Speckels, Alfred Kemper
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Publication number: 20080230589Abstract: An apparatus for connecting a component with a substrate by means of diffusion soldering in a closed evacuated chamber is disclosed. The component and the substrate to be connected are displaceable separate from one another in the chamber, and the chamber comprises a combined transfer and pressing unit being displaceable between the current position of the component and the current position of the substrate, for placing and pressing the component on the substrate. The combined transfer and pressing unit comprises a rotatable element, which, in response to the placing and pressing of the component on the substrate, assumes an angle between the normal of the lower side of the component to be connected and the pressing direction of the component, the angle corresponding to the angle between the normal of the substrate surface area to be connected and the pressing direction of the component.Type: ApplicationFiled: March 19, 2007Publication date: September 25, 2008Inventors: Karsten Guth, Alfred Kemper, Roland Speckels
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Publication number: 20080211091Abstract: A method for producing a power semiconductor module including forming a contact between a contact region and a contact element as an ultrasonic welding contact via a sonotrode. The ultrasonic welding operation also being used for joining the contact regions with the contact ends and consequently for joining the contacts and the foot regions.Type: ApplicationFiled: March 21, 2008Publication date: September 4, 2008Applicant: Infineon Technologies AGInventors: Alfred Kemper, Guido Strotmann
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Publication number: 20080096311Abstract: An apparatus for connecting at least two components contains a lower die and an upper die. The lower die has the components which are to be connected, with the first component supporting the at least second component with an at least partial overlap relative to the first component. The lower die and the upper die can be moved relative to one another. The upper die carries at least two heatable plungers which are connected so as to be able to move relative to one another via a sealed pressure pad. The plungers and the pressure pad have a first flexible layer between them. A second flexible layer is arranged between the upper die and the lower die.Type: ApplicationFiled: October 13, 2006Publication date: April 24, 2008Inventors: Roland Speckels, Alfred Kemper
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Publication number: 20080023530Abstract: A method for producing an electronic device is disclosed. One embodiment provides two soldering partners to be connected to one another at an envisaged joining location and at least one of which includes an electronic component or is formed as such a component, a soldering apparatus having an inductor, and an intermediate plate The soldering partners, the inductor and the intermediate plate are positioned in such a way that the intermediate plate is arranged between the electronic component and the envisaged joining location, on the one hand, and the inductor. The soldering partners are connected at the envisaged joining location by using a solder that is melted by energy emitted by the inductor.Type: ApplicationFiled: July 26, 2007Publication date: January 31, 2008Applicant: INFINEON TECHNOLOGIES AGInventor: Alfred Kemper
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Publication number: 20070111475Abstract: A method for structured application of a laminatable intermediate layer (9) to a substrate (1) for a semiconductor module, wherein a separating layer is indirectly or directly applied to said substrate (1) over a large surface, the intermediate layer (9) is applied to the substrate (1), including the separating layer(s), by lamination, over a large surface, the intermediate layer (9) is opened in places on the substrate (1), where recesses are provided for the intermediate layer (9), and the separating layer (8) is removed in these places.Type: ApplicationFiled: October 12, 2006Publication date: May 17, 2007Inventors: Thomas Licht, Alfred Kemper
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Publication number: 20060261133Abstract: A method and a device is provided for levelling an area region on the surface of a metal or metallization layer of a carrier. The area region is made planar by the action of a stamp or of a roller.Type: ApplicationFiled: April 28, 2006Publication date: November 23, 2006Applicant: eupec Europaische Gesellschaft fur Leistungshalbleiter mbHInventors: Reinhold Bayerer, Thomas Licht, Alfred Kemper
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Publication number: 20060076389Abstract: In a method and a corresponding apparatus for controlling and monitoring the vacuum brazing of power components and SMD components, in which the temperature of the process is controlled using an open thermocouple, which is arranged separate from the furnace heating and is integrated in a base plate serving as a heat buffer, the temperature of the process is monitored and measured directly at the point of contact between brazing material and component. The uniformity of the temperature distribution during the process is measured by means of a contactless optical measuring system.Type: ApplicationFiled: September 27, 2005Publication date: April 13, 2006Inventors: Alfred Kemper, Thomas Licht, Christian Robohm, Guido Strotmann
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Patent number: 6828600Abstract: A power semiconductor module is presented in which terminal elements are press-fitted into openings in a plastic housing. This measure improves the reliability of the internal bonds between the substrate and the terminal element since there is no longer a risk of the terminal elements loosening in the plastic housing.Type: GrantFiled: May 5, 2003Date of Patent: December 7, 2004Assignee: eupec Europaeische Gesellschaft fuer Leistungshalbleiter mbHInventors: Andreas Lenniger, Gottfried Ferber, Alfred Kemper
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Patent number: 6796483Abstract: A method and device is provided for thermal treatment of workpieces or components, in particular for producing a soldered joint between a solder material and at least one component or workpiece which is used as a carrier for said solder material, by melting of the solder material arranged on the solder material carrier. At least one component is heated in a melt chamber (12) in a process atmosphere which is sealed off from the environment. In a subsequent step the component is cooled in a cooling chamber (13) in a process atmosphere which is sealed off from the environment. The component is heated and cooled in process chamber (12, 13) which are independent of each other.Type: GrantFiled: May 6, 2002Date of Patent: September 28, 2004Assignee: Pink GmbH VakuumtechnikInventors: Stefan Weber, Alfred Kemper
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Publication number: 20030168724Abstract: A power semiconductor module is presented in which terminal elements are press-fitted into openings in a plastic housing. This measure improves the reliability of the internal bonds between the substrate and the terminal element since there is no longer a risk of the terminal elements loosening in the plastic housing.Type: ApplicationFiled: May 5, 2003Publication date: September 11, 2003Applicant: Siemens AGInventors: Andreas Lenniger, Gottfried Ferber, Alfred Kemper