Patents by Inventor John L. McCollum

John L. McCollum 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).

  • Double field oxidation process
    Patent number: 4352236
    Abstract: A process for growing field oxide particularly for a dynamic memory is described. The process results in thinner field oxides in the storage array (2000-3000 A) and thicker oxides for the peripheral circuits (7000-8000 A). The thinner field oxide regions have smaller bird-beaks, reducing required substrate area. The plate for the storage nodes are coupled to ground potential, thus the thinner field oxides in the storage region provide sufficient isolation.
    Type: Grant
    Filed: July 24, 1981
    Date of Patent: October 5, 1982
    Assignee: Intel Corporation
    Inventor: John L. McCollum