Patents Examined by R. Ratcliff
  • Patent number: 5045914
    Abstract: A pad array electronic device for mounting on a substrate, such as a printed circuit board (PCB), has a relatively rigid package body with a plurality of holes bearing connecting mechanisms for bonding to lands on the PCB. The package body may be a thermoset plastic or other material that can be injection molded around an electronic component, such as an integrated circuit (IC) bonded to a lead frame. An integrated circuit die or other electronic component is mounted in proximity with or on the lead frame and electrical connections between the integrated circuit chip and the frame are made by any conventional means. In one aspect, the substrate leads are provided at their outer ends that are exposed by holes in the package with solder balls or pads for making connections to the PCB. The package body may be optionally used to stand off the device a set distance from the PCB so that the solder balls will form the proper concave structure.
    Type: Grant
    Filed: March 1, 1991
    Date of Patent: September 3, 1991
    Assignee: Motorola, Inc.
    Inventors: James J. Casto, Michael B. McShane, Paul T. Lin