Patents by Inventor Torkel Amborg

Torkel Amborg 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).

  • Patent number: 6551912
    Abstract: On a semiconductor die, a conductive layer is formed by first attaching a semiconductor wafer to a support wafer, then cutting the semiconductor wafer into dies, and finally depositing a conductive layer on the sides of the dies. The conductive layer is preferably a metal layer, which extends into the support wafer, which ensures that, when the support wafer is removed, the conductive layer extends all the way over the sidewall of the semiconductor die. The method allows the simultaneous application of the conductive layer to many dies. The conductive layer reduces the resistance for currents in the radio frequency range flowing close to the edges of the die due to the skin effect.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: April 22, 2003
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Torkel Amborg, Ulf Smith
  • Publication number: 20020016052
    Abstract: On a semiconductor die, a conductive layer is formed by first attaching a semiconductor wafer to a support wafer, then cutting the semiconductor wafer into dies, and finally depositing a conductive layer on the sides of the dies. The conductive layer is preferably a metal layer, which extends into the support wafer, which ensures that, when the support wafer is removed, the conductive layer extends all the way over the sidewall of the semiconductor die. The method allows the simultaneous application of the conductive layer to many dies. The conductive layer reduces the resistance for currents in the radio frequency range flowing close to the edges of the die due to the skin effect.
    Type: Application
    Filed: April 26, 2001
    Publication date: February 7, 2002
    Inventors: Torkel Amborg, Ulf Smith