Patents by Inventor Dirk Siepe
Dirk Siepe 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: 9196562Abstract: A semiconductor arrangement includes a silicon body having a top surface and a bottom surface, and a thick metal layer arranged on the top surface of the silicon body. The thick metal layer has a bonding surface facing away from the top surface of the silicon body. A bonding wire or a ribbon is bonded to the thick metal layer at the bonding surface of the thick metal layer. The thickness of the thick metal layer is at least 10 micrometers (?m), the thick metal layer comprises copper or a copper alloy, and the bonding wire or ribbon comprises copper or a copper-based material.Type: GrantFiled: September 7, 2011Date of Patent: November 24, 2015Assignee: Infineon Technologies AGInventors: Dirk Siepe, Reinhold Bayerer
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Patent number: 9129934Abstract: A power semiconductor module includes a circuit carrier including an insulation carrier having a top side on which a metallization layer is arranged. A power semiconductor chip is arranged on a side of the metallization layer facing away from the insulation carrier, and which has on a top side of the power semiconductor chip facing away from the circuit carrier an upper chip metallization composed of copper or a copper alloy having a thickness of greater than or equal to 1 ?m. An electrical connection conductor composed of copper or a copper alloy is connected to the upper chip metallization at a connecting location. A potting compound extends from the circuit carrier to at least over the top side of the power semiconductor chip and completely covers the top side of the power semiconductor chip, encloses the connection conductor at least in the region of the connecting location, and has a penetration of less than or equal to 30 according to DIN ISO 2137 at a temperature of 25° C.Type: GrantFiled: November 18, 2010Date of Patent: September 8, 2015Assignee: Infineon Technologies AGInventors: Hans Hartung, Dirk Siepe
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Patent number: 8955219Abstract: The invention relates to a method for fabricating a bond by providing a body including a metallic surface provided with an inorganic, dielectric protective layer. The protective layer covers at least one surface zone of the metallic surface in which the metallic surface is to be electrically conductive bonded to a contact conductor. To fabricate the bond, a portion of a provided contact conductor above the surface zone is pressed on to the protective layer and the body so that the protective layer is destroyed above the surface zone in achieving an electrically conductive bond between the metallic surface and the contact conductor.Type: GrantFiled: February 22, 2010Date of Patent: February 17, 2015Assignee: Infineon Technologies AGInventors: Roman Roth, Dirk Siepe
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Patent number: 8541892Abstract: A bonding connection between a bonding wire and a power semiconductor chip is disclosed. The power semiconductor chip has a semiconductor body arranged in which is an active cell region with a multiplicity of cells arranged one following the other in a lateral direction and connected electrically in parallel. The semiconductor body has a surface portion arranged above the active cell region in a vertical direction perpendicular to the lateral direction. Applied to the surface portion is a metallization layer onto which a bonding wire is bonded. The bonding wire comprises an alloy containing at least 99% by weight aluminum and at least one further alloying constituent. The aluminum has a grain structure with a mean grain size which is less than 2 ?m.Type: GrantFiled: September 23, 2010Date of Patent: September 24, 2013Assignee: Infineon Technologies AGInventors: Dirk Siepe, Thomas Gutt, Roman Roth
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Patent number: 8198721Abstract: A semiconductor substrate and a method for producing it is disclosed. In one embodiment, a contact region and a corresponding contact material of the semiconductor substrate are formed, in regions or completely, with a protection against oxidation.Type: GrantFiled: July 14, 2006Date of Patent: June 12, 2012Assignee: Infineon Technologies AGInventors: Reinhold Bayerer, Thomas Licht, Dirk Siepe
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Patent number: 8164176Abstract: A semiconductor arrangement has a silicon body with a first surface and a second surface and a thick metal layer arranged on at least one surface of the silicon body. The thickness of the thick metal-layer is at least 10 micrometers (?m).Type: GrantFiled: October 20, 2006Date of Patent: April 24, 2012Assignee: Infineon Technologies AGInventors: Dirk Siepe, Reinhold Bayerer
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Publication number: 20110316160Abstract: A semiconductor arrangement includes a silicon body having a top surface and a bottom surface, and a thick metal layer arranged on the top surface of the silicon body. The thick metal layer has a bonding surface facing away from the top surface of the silicon body. A bonding wire or a ribbon is bonded to the thick metal layer at the bonding surface of the thick metal layer. The thickness of the thick metal layer is at least 10 micrometers (?m), the thick metal layer comprises copper or a copper alloy, and the bonding wire or ribbon comprises copper or a copper-based material.Type: ApplicationFiled: September 7, 2011Publication date: December 29, 2011Applicant: INFINEON TECHNOLOGIES AGInventors: Dirk Siepe, Reinhold Bayerer
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Publication number: 20110121458Abstract: A bonding connection between a bonding wire and a power semiconductor chip is disclosed. The power semiconductor chip has a semiconductor body arranged in which is an active cell region with a multiplicity of cells arranged one following the other in a lateral direction and connected electrically in parallel. The semiconductor body has a surface portion arranged above the active cell region in a vertical direction perpendicular to the lateral direction. Applied to the surface portion is a metallization layer onto which a bonding wire is bonded. The bonding wire comprises an alloy containing at least 99% by weight aluminium and at least one further alloying constituent. The aluminum has a grain structure with a mean grain size which is less than 2 ?m.Type: ApplicationFiled: September 23, 2010Publication date: May 26, 2011Applicant: INFINEON TECHNOLOGIES AGInventors: Dirk Siepe, Thomas Gutt, Roman Roth
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Publication number: 20110115068Abstract: A power semiconductor module includes a circuit carrier including an insulation carrier having a top side on which a metallization layer is arranged. A power semiconductor chip is arranged on a side of the metallization layer facing away from the insulation carrier, and which has on a top side of the power semiconductor chip facing away from the circuit carrier an upper chip metallization composed of copper or a copper alloy having a thickness of greater than or equal to 1 ?m. An electrical connection conductor composed of copper or a copper alloy is connected to the upper chip metallization at a connecting location. A potting compound extends from the circuit carrier to at least over the top side of the power semiconductor chip and completely covers the top side of the power semiconductor chip, encloses the connection conductor at least in the region of the connecting location, and has a penetration of less than or equal to 30 according to DIN ISO 2137 at a temperature of 25° C.Type: ApplicationFiled: November 18, 2010Publication date: May 19, 2011Applicant: INFINEON TECHNOLOGIES AGInventors: Hans Hartung, Dirk Siepe
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Patent number: 7851913Abstract: A semiconductor device exhibits a first metal layer, made of a first metal, with at least one contiguous subsection. At least one second metal layer, made of a second metal, is placed on the contiguous subsection of the first metal layer. The second metal is harder than the first metal. The second metal layer is structured to form at least two layer regions, which are disposed on the contiguous subsection of the first metal layer. The second metal exhibits a boron-containing or phosphorus-containing metal or a boron-containing or phosphorus-containing metal alloy.Type: GrantFiled: November 20, 2006Date of Patent: December 14, 2010Assignee: Infineon Technologies AGInventors: Thomas Gutt, Dirk Siepe, Thomas Laska, Michael Melzl, Matthias Stecher, Roman Roth
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Publication number: 20100212153Abstract: The invention relates to a method for fabricating a bond by providing a body including a metallic surface provided with an inorganic, dielectric protective layer. The protective layer covers at least one surface zone of the metallic surface in which the metallic surface is to be electrically conductive bonded to a contact conductor. To fabricate the bond, a portion of a provided contact conductor above the surface zone is pressed on to the protective layer and the body so that the protective layer is destroyed above the surface zone in achieving an electrically conductive bond between the metallic surface and the contact conductor.Type: ApplicationFiled: February 22, 2010Publication date: August 26, 2010Applicant: INFINEON TECHNOLOGIES AGInventors: Roman Roth, Dirk Siepe
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Patent number: 7654434Abstract: The invention relates to a method and also a device and a system for bonding a semiconductor element (4), in which various contact areas (8) of the semiconductor element (4) are successively connected to terminal areas (2, 3, 7) by means of bonding wire elements (6) and in which an electrical variable influenced by the semiconductor element (4) is acquired during the bonding operation.Type: GrantFiled: March 20, 2006Date of Patent: February 2, 2010Assignee: Infineon Technologies AGInventors: Dirk Siepe, Reinhold Bayerer, Andreas Lenniger
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Patent number: 7597235Abstract: One aspect relates to a bonding apparatus for producing a bonding connection between a bonding wire and a bonding partner. The bonding apparatus includes a heel shaper, which is provided for avoiding damage to the bonding wire in the heel region during the bonding operation. One aspect relates to a method for producing a bonding connection by means of a bonding apparatus having a heel shaper and a bonding stamp. The heel shaper is situated relative to the bonding stamp in a first active position or can be moved into such a first active position. In the first active position, the heel shaper ensures that the bonding wire runs in a permissible region in the heel region.Type: GrantFiled: November 15, 2007Date of Patent: October 6, 2009Assignee: Infineon Technologies AGInventor: Dirk Siepe
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Publication number: 20090127316Abstract: One aspect relates to a bonding apparatus for producing a bonding connection between a bonding wire and a bonding partner. The bonding apparatus includes a heel shaper, which is provided for avoiding damage to the bonding wire in the heel region during the bonding operation. One aspect relates to a method for producing a bonding connection by means of a bonding apparatus having a heel shaper and a bonding stamp. The heel shaper is situated relative to the bonding stamp in a first active position or can be moved into such a first active position. In the first active position, the heel shaper ensures that the bonding wire runs in a permissible region in the heel region.Type: ApplicationFiled: November 15, 2007Publication date: May 21, 2009Applicant: Infineon Technologies AGInventor: Dirk Siepe
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Publication number: 20090127317Abstract: A bonding device and method for producing a bonding connection is disclosed. One embodiment provides a bonding stamp and an ultrasonic generator coupled thereto. The ultrasonic frequency and an effective length, which is given by the distance between the lower end of the bonding stamp and the coupling location of the ultrasonic generator at the bonding stamp in the vertical direction, are coordinated with one another in such a way that the following holds true: 0.9 · n · c 2 · l ? f ? 1.1 · n · c 2 · l where c is the speed of the ultrasound in the bonding stamp at the frequency f, and n=1 or 2 or 3 or 4.Type: ApplicationFiled: November 15, 2007Publication date: May 21, 2009Applicant: Infineon Technologies AGInventors: Dirk Siepe, Guido Strotmann
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Publication number: 20080093729Abstract: A semiconductor arrangement has a silicon body with a first surface and a second surface and a thick metal layer arranged on at least one surface of the silicon body. The thickness of the thick metal-layer is at least 10 micrometers (?m).Type: ApplicationFiled: October 20, 2006Publication date: April 24, 2008Inventors: Dirk Siepe, Reinhold Bayerer
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Publication number: 20070013046Abstract: A semiconductor substrate and a method for producing it is disclosed. In one embodiment, a contact region and a corresponding contact material of the semiconductor substrate are formed, in regions or completely, with a protection against oxidation.Type: ApplicationFiled: July 14, 2006Publication date: January 18, 2007Inventors: Reinhold Bayerer, Thomas Licht, Dirk Siepe
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Publication number: 20060208037Abstract: The invention relates to a method and also a device and a system for bonding a semiconductor element (4), in which various contact areas (8) of the semiconductor element (4) are successively connected to terminal areas (2, 3, 7) by means of bonding wire elements (6) and in which an electrical variable influenced by the semiconductor element (4) is acquired during the bonding operation.Type: ApplicationFiled: March 20, 2006Publication date: September 21, 2006Inventors: Dirk Siepe, Reinhold Bayerer, Andreas Lenniger
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Publication number: 20050077175Abstract: The present invention relates to a process for producing a microstructured analytical system including providing at least two plastic components, wetting at least one component, aligning the components, pressing and joining the components together and curing an adhesive.Type: ApplicationFiled: December 1, 2004Publication date: April 14, 2005Inventors: Friedhelm Eisenbeiss, Bernd Stanislawski, Thomas Greve, Renate Bender, Roland Hergenroder, Gunther Weber, Benedikt Grass, Andreas Neyer, Matthias Johnck, Dirk Siepe