Patents by Inventor Ulf G. Karlsson

Ulf G. 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).

  • Printed circuit board with embedded circuit component
    Patent number: 7570493
    Abstract: In one embodiment, a printed circuit board includes a plurality of insulating layers in which an aperture is formed through some of the layers. A resistive plug at least partially fills the aperture and contacts respective conductive members at each end of the resistive plug to form a resistive via that traverses partially through the printed circuit board. In another embodiment, a printed circuit board includes a plurality of insulating layers in which an aperture is formed through at least some of the layers. A dielectric plug at least partially fills the aperture and contacts respective conductive members at each end of the dielectric plug to form a capacitive via that traverses at least partially through the printed circuit board.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: August 4, 2009
    Assignee: Sony Ericsson Mobile Communications
    Inventor: Ulf G. Karlsson
  • PRINTED CIRCUIT BOARD WITH EMBEDDED CIRCUIT COMPONENT
    Publication number: 20080117606
    Abstract: In one embodiment, a printed circuit board includes a plurality of insulating layers in which an aperture is formed through some of the layers. A resistive plug at least partially fills the aperture and contacts respective conductive members at each end of the resistive plug to form a resistive via that traverses partially through the printed circuit board. In another embodiment, a printed circuit board includes a plurality of insulating layers in which an aperture is formed through at least some of the layers. A dielectric plug at least partially fills the aperture and contacts respective conductive members at each end of the dielectric plug to form a capacitive via that traverses at least partially through the printed circuit board.
    Type: Application
    Filed: November 16, 2006
    Publication date: May 22, 2008
    Inventor: Ulf G. Karlsson