Patents by Inventor John Marvin Smith

John Marvin Smith 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: 3996603
    Abstract: High frequency power transistor carriers are made by bonding a metalized ceramic base to a lead frame strip, cutting the lead frame strip to isolate the base and collector leads while still maintaining the transistor carriers in strip form, and subsequently gold plating the resultant structure. Transistor dice are then attached to each ceramic carrier, and each transistor carrier in the strip is then electrically tested. The individual carriers are then separated from the lead frame strip. The individual carrier has wide base and collector leads extending outward from the ceramic base for a substantial distance and then the base and collector leads are narrowed down. When the individual transistor carrier is used in combination with a hybrid assembly, a reduction in lead inductance and total hybrid package size is obtained while exact carrier placement relative to the hybrid assembly is not required.
    Type: Grant
    Filed: October 18, 1974
    Date of Patent: December 7, 1976
    Assignee: Motorola, Inc.
    Inventor: John Marvin Smith