Patents by Inventor Robert Rumsey

Robert Rumsey 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: 7979813
    Abstract: A method is described for converting an existing die, originally designed for a non-chip-scale package, to a chip-scale package die, where the die's bonding pads are located in positions within a defined grid of candidate positions. In the first step, the die's layout, comprising its outer boundaries and areas needed to be electrically connected to bonding pads, are shifted relative to a grid of candidate positions for the bonding pads until an optimal alignment is identified. Bonding pads positions on the die are then selected corresponding to optimum grid positions within the outer boundaries of the die. The die is then fabricated using the original masks to form at least the semiconductor regions and using a new set of masks for defining the new locations of the bonding pads for the chip-scale package. The chip-scale package is then bonded to a PCB using chip-scale package technology.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: July 12, 2011
    Assignee: Micrel, Inc.
    Inventors: Robert Rumsey, Richard Dolan, Haowei Wu
  • Publication number: 20100180249
    Abstract: A method is described for converting an existing die, originally designed for a non-chip-scale package, to a chip-scale package die, where the die's bonding pads are located in positions within a defined grid of candidate positions. In the first step, the die's layout, comprising its outer boundaries and areas needed to be electrically connected to bonding pads, are shifted relative to a grid of candidate positions for the bonding pads until an optimal alignment is identified. Bonding pads positions on the die are then selected corresponding to optimum grid positions within the outer boundaries of the die. The die is then fabricated using the original masks to form at least the semiconductor regions and using a new set of masks for defining the new locations of the bonding pads for the chip-scale package. The chip-scale package is then bonded to a PCB using chip-scale package technology.
    Type: Application
    Filed: January 15, 2009
    Publication date: July 15, 2010
    Applicant: MICREL, INC.
    Inventors: Robert Rumsey, Richard Dolan, Haowei Wu
  • Patent number: 7211893
    Abstract: Wafer-level chip-scale packaging technology is used for improving performance or reducing size of integrated circuits by using metallization of pad-to-bump-out beams as part of the integrated circuit structure. Chip-scale packaging under bump metal is routed to increase the thickness of top metal of the integrated circuit, increasing current carrying capability and reducing resistance. An exemplary embodiment for a power MOSFET array integrated structure is described. Another exemplary embodiment illustrated the use of chip-scale processes for interconnecting discrete integrated circuits.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: May 1, 2007
    Assignee: Micrel, Incorporated
    Inventors: Martin Alter, Robert Rumsey
  • Patent number: 6900538
    Abstract: Wafer-level chip-scale packaging technology is used for improving performance or reducing size of integrated circuits by using metallization of pad-to-bump-out beams as part of the integrated circuit structure. Chip-scale packaging under bump metal is routed to increase the thickness of top metal of the integrated circuit, increasing current carrying capability and reducing resistance. An exemplary embodiment for a power MOSFET array integrated structure is described. Another exemplary embodiment illustrated the use of chip-scale processes for interconnecting discrete integrated circuits.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: May 31, 2005
    Assignee: Micrel, Inc.
    Inventors: Martin Alter, Robert Rumsey
  • Publication number: 20050062156
    Abstract: Wafer-level chip-scale packaging technology is used for improving performance or reducing size of integrated circuits by using metallization of pad-to-bump-out beams as part of the integrated circuit structure. Chip-scale packaging under bump metal is routed to increase the thickness of top metal of the integrated circuit, increasing current carrying capability and reducing resistance. An exemplary embodiment for a power MOSFET array integrated structure is described. Another exemplary embodiment illustrated the use of chip-scale processes for interconnecting discrete integrated circuits.
    Type: Application
    Filed: November 3, 2004
    Publication date: March 24, 2005
    Inventors: Martin Alter, Robert Rumsey
  • Publication number: 20050042529
    Abstract: A lithographic pattern includes a first scribe along an edge of a die region, and a second scribe along an opposing edge of the die region. The first scribe includes at least a first translucent box and a second translucent box. The second scribe includes at least a first opaque box and a second opaque box defined respectively by a first translucent frame and a second translucent frame. When the lithographic pattern is stepped between fields on a wafer, the first translucent box is placed at least partially within the first opaque box, and the second translucent box is placed at least partially within the second opaque box. If a continuous ring is formed from a pair of a translucent box and an opaque box, the fields are aligned at least within an amount equal to the difference between the dimensions of that translucent box and that opaque box divided by 2.
    Type: Application
    Filed: October 5, 2004
    Publication date: February 24, 2005
    Inventors: Robert Rumsey, Martin Garnett
  • Publication number: 20040245633
    Abstract: Wafer-level chip-scale packaging technology is used for improving performance or reducing size of integrated circuits by using metallization of pad-to-bump-out beams as part of the integrated circuit structure. Chip-scale packaging under bump metal is routed to increase the thickness of top metal of the integrated circuit, increasing current carrying capability and reducing resistance. An exemplary embodiment for a power MOSFET array integrated structure is described. Another exemplary embodiment illustrated the use of chip-scale processes for interconnecting discrete integrated circuits.
    Type: Application
    Filed: January 20, 2004
    Publication date: December 9, 2004
    Inventors: Martin Alter, Robert Rumsey