Patents by Inventor Daniel L. Schumacher

Daniel L. Schumacher 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).

  • Mirrored pin assignment for two sided multi-chip layout
    Patent number: 5502621
    Abstract: The invention provides for increased IC density on circuit boards having at least one IC mounted on each side of a two sided PC or SMT board by utilizing one or more IC's having pin assignments arranged as a mirror image of each other along a centerline through the IC package in the X or Y axis, such that one or more IC's having the same set of mirror image pin assignments mounted on each side of a circuit board and rotated 180 degrees in relationship to each other will ensure that the pin assignments of the same type will be directly opposite each other and separated by the circuit board.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: March 26, 1996
    Assignee: Hewlett-Packard Company
    Inventors: Daniel L. Schumacher, John Wood