Patents by Inventor Thomas J. Frampton

Thomas J. Frampton 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: 4622433
    Abstract: In accordance with the preferred embodiments of the invention, provided is a hermetic ceramic/glass enclosure for encapsulating semiconductor components which reduces the internal cavity moisture and contamination levels, has a stronger package seal and a lower sealing temperature than hermetic ceramic/glass enclosures currently used. Included in the first embodiment is a lower substrate, with a conductive leadframe attached thereto via devitrified glass and a layer of vitreous glass on the leadframe for attaching a cap which also includes a layer of vitreous glass. To seal the enclosure, the cap is heated to a temperature T1 above the melting point of the vitreous glass, and the lower substrate, is maintained at a temperature high enough to bond to the vitreous layer on the cap on contact, but low enough to eliminate damage to the semiconductor component and additional Gold-Silicon eutectic formation between the semiconductor component and the enclosure lower substrate.
    Type: Grant
    Filed: March 30, 1984
    Date of Patent: November 11, 1986
    Assignee: Diacon, Inc.
    Inventor: Thomas J. Frampton