Patents Examined by Jerome W. Masssie
  • Method for making electrical lead frame devices
    Patent number: 3960561
    Abstract: A method for making lead frame devices wherein a thin metal foil is adhered to a stiffener panel by means of a photoresist layer to enable all processing steps by which the metal foil is transformed into an appropriate and predetermined lead frame configuration. After the lead frame fabrication is completed, the photoresist is removed by suitable means and ready for application and functional use as an electronic component electrical connecting device.
    Type: Grant
    Filed: April 10, 1975
    Date of Patent: June 1, 1976
    Assignee: International Business Machines Corporation
    Inventors: Frank W. Haining, Joseph M. Kolly, Thomas E. Lynch, Jr.