Patents by Inventor Heiko Aßmann

Heiko Aßmann 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).

  • Publication number: 20230350309
    Abstract: A method of generating chip-specific identification code marks on semiconductor chips includes patterning a resist layer over a semiconductor wafer by laser direct image exposure, the patterning including writing chip-specific identification codes into the resist layer over chip areas of the semiconductor wafer. The patterned resist layer is then developed.
    Type: Application
    Filed: April 20, 2023
    Publication date: November 2, 2023
    Inventors: Detlef Hofmann, Heiko Aßmann
  • Patent number: 11276624
    Abstract: A semiconductor device includes: a semiconductor substrate; a power device formed in the semiconductor substrate; a metal bilayer formed over the semiconductor substrate, the metal bilayer including a discontinuous metal layer formed on and in contact with a continuous base metal layer; and one or more contact pads formed in the metal bilayer or in a metallization layer above the metal bilayer. The discontinuous metal layer includes a plurality of metal blocks which are laterally spaced apart from one another and which form a heat sink structure over the power device. The continuous base metal layer is configured to laterally spread heat energy from the power device to the plurality of metal blocks. Methods of producing the semiconductor device are also described.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: March 15, 2022
    Assignee: Infineon Technologies Austria AG
    Inventors: Michael Nelhiebel, Heiko Assmann, Olaf Heitzsch, Jakob Kriz, Sven Lanzerstorfer, Rainer Pelzer, Werner Robl, Bernhard Weidgans, Johannes Zechner
  • Publication number: 20210183732
    Abstract: A semiconductor device includes: a semiconductor substrate; a power device formed in the semiconductor substrate; a metal bilayer formed over the semiconductor substrate, the metal bilayer including a discontinuous metal layer formed on and in contact with a continuous base metal layer; and one or more contact pads formed in the metal bilayer or in a metallization layer above the metal bilayer. The discontinuous metal layer includes a plurality of metal blocks which are laterally spaced apart from one another and which form a heat sink structure over the power device. The continuous base metal layer is configured to laterally spread heat energy from the power device to the plurality of metal blocks. Methods of producing the semiconductor device are also described.
    Type: Application
    Filed: December 17, 2019
    Publication date: June 17, 2021
    Inventors: Michael Nelhiebel, Heiko Assmann, Olaf Heitzsch, Jakob Kriz, Sven Lanzerstorfer, Rainer Pelzer, Werner Robl, Bernhard Weidgans, Johannes Zechner
  • Patent number: 10468248
    Abstract: In various embodiments, a method is provided. The method may include forming a buried electrically charged region at a predefined position in a first layer in such a way that the buried electrically charged region generates an electric field having a lateral inhomogeneous field distribution above the first layer, and forming a second layer above the first layer using the field distribution in such a way that a structure of the second layer correlates with the position of the buried electrically charged region.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: November 5, 2019
    Assignee: Infineon Technologies AG
    Inventors: Heiko Aßmann, Felix Braun, Marcus Dankelmann, Stefan Doering, Karsten Friedrich, Udo Goetschkes, Andreas Greiner, Ralf Rudolf, Jens Schneider
  • Patent number: 10331036
    Abstract: In various embodiments, an exposure mask may include a carrier, a first exposure structure in a first structure plane of the carrier, and a second exposure structure in a second structure plane of the carrier. The two structure planes differ from one another.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: June 25, 2019
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Heiko Assmann, Markus Dankelmann, Uwe Winkler
  • Publication number: 20170336718
    Abstract: In various embodiments, an exposure mask may include a carrier, a first exposure structure in a first structure plane of the carrier, and a second exposure structure in a second structure plane of the carrier. The two structure planes differ from one another.
    Type: Application
    Filed: May 16, 2017
    Publication date: November 23, 2017
    Inventors: Heiko Assmann, Markus Dankelmann, Uwe Winkler
  • Publication number: 20170294299
    Abstract: In various embodiments, a method is provided. The method may include forming a buried electrically charged region at a predefined position in a first layer in such a way that the buried electrically charged region generates an electric field having a lateral inhomogeneous field distribution above the first layer, and forming a second layer above the first layer using the field distribution in such a way that a structure of the second layer correlates with the position of the buried electrically charged region.
    Type: Application
    Filed: April 12, 2017
    Publication date: October 12, 2017
    Inventors: Heiko Assmann, Felix Braun, Marcus Dankelmann, Stefan Doering, Karsten Friedrich, Udo Goetschkes, Andreas Greiner, Ralf Rudolf, Jens Schneider