Patents by Inventor Robert E. Iverson

Robert E. Iverson 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: 5539251
    Abstract: A "leads over chip" lead frame design is disclosed which can be used with a conventional die having leads located at the periphery. The inventive design uses an elongated tie bar which extends from one side of the lead frame to the other, across the die. The die is attached to the bottom of the tie bar, then the bond pads are wire bonded to the lead fingers. The lead fingers of the inventive lead frame do not extend over the top of the die, but are positioned in close proximity to allow for short bond wires. The die and a portion of the lead fingers are encapsulated, and the tie bars are severed to separate them from the lead frame. The invention allows the advantages of a leads over die configuration with a conventional die having bond pads located at the periphery. Therefor, a single die can be manufactured which can be used either with the inventive lead frame for a plastic package, or with a ceramic package.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: July 23, 1996
    Assignee: Micron Technology, Inc.
    Inventors: Robert E. Iverson, Walter L. Moden