Patents by Inventor Douglas M. Kelly

Douglas M. Kelly 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: 5021864
    Abstract: An improved die-mounting paddle for mechanical stress reduction in plastic integrated circuit packages. The paddle, which is incorporated in a leadframe, comprises multiple, coplanar floating sub-paddles, each of which is attached to a support beam by a flexible coil, thus allowing a large die to remain firmly attached to each of the pads, in spite of differences in the coefficients of expansion between the leadframe paddle metal and the die that might well result in bonding wire breakage or die breakage if a conventional single large paddle were utilized.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: June 4, 1991
    Assignee: Micron Technology, Inc.
    Inventors: Douglas M. Kelly, Ward D. Parkinson, Timothy J. Allen