Patents by Inventor Eric Karlsson

Eric Karlsson 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).

  • PSEUDO SELF ALIGNED RADHARD MOSFET AND PROCESS OF MANUFACTURE
    Publication number: 20140339625
    Abstract: A Vertical Power MOSFET (VDMOS) device with special features that enable the Power MOSFET or IGBT device to withstand harsh radiation environments and the process of making such a device is described. All implanted and diffused layers are “self aligned” to a “Sacrificial Poly” layer, which later on is removed, preparing the wafers for a “late gate” oxide to be grown. A starting material with graded doping profile in the epitaxial layer on the substrate is shown to increase the SEB capability of the Power MOSFET.
    Type: Application
    Filed: July 22, 2014
    Publication date: November 20, 2014
    Inventors: Dumitru Sdrulla, Marc H. Vandenberg, Eric Karlsson
  • Pseudo self aligned radhard MOSFET and process of manufacture
    Patent number: 8841718
    Abstract: A Vertical Power MOSFET (VDMOS) device with special features that enable the Power MOSFET or IGBT device to withstand harsh radiation environments and the process of making such a device is described. All implanted and diffused layers are “self aligned” to a “Sacrificial Poly” layer, which later on is removed, preparing the wafers for a “late gate” oxide to be grown. A starting material with graded doping profile in the epitaxial layer on the substrate is shown to increase the SEB capability of the Power MOSFET.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: September 23, 2014
    Assignee: Microsemi Corporation
    Inventors: Dumitru Sdrulla, Marc H. Vandenberg, Eric Karlsson