Patents by Inventor Alan Arthur Shepherd

Alan Arthur Shepherd 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).

  • Method of manufacturing semi-conductor devices
    Patent number: 4079509
    Abstract: Semiconductor devices are mounted on corresponding lead frames by being inserted into apertures of a masking member in a desired registration with the lead frame strip.
    Type: Grant
    Filed: June 16, 1975
    Date of Patent: March 21, 1978
    Assignee: Ferranti Limited
    Inventors: Sydney Jackson, Alan Arthur Shepherd
  • Related to the manufacture of lead frames and the mounting of semiconductor devices thereon
    Patent number: 3942245
    Abstract: A support for a semiconductor device comprises a lead frame having a matrix of cranked conductors, which may be on an insulating substrate, with a recess being defined within the lead frame, the arrangement being such that by merely placing a correctly oriented device in the recess, and providing the required electrical interconnections between the device and the conductors, the device is accurately located in its required position on the lead frame.
    Type: Grant
    Filed: April 3, 1974
    Date of Patent: March 9, 1976
    Assignee: Ferranti Limited
    Inventors: Sydney Jackson, Alan Arthur Shepherd
  • Apparatus for mounting semiconductor devices
    Patent number: 3931922
    Abstract: Semiconductor devices are mounted on corresponding lead frames by being inserted into apertures of a masking member in a desired registration with the lead frame strip.
    Type: Grant
    Filed: January 29, 1973
    Date of Patent: January 13, 1976
    Assignee: Ferranti, Limited
    Inventors: Sydney Jackson, Alan Arthur Shepherd