Patents by Inventor Frank E. Holmes

Frank E. Holmes 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 making metal oxide semiconductor devices
    Patent number: 4003126
    Abstract: A MOS transistor fabrication method using either three or four masking steps and wherein the channel between source and drain is defined by preferential etching of the semiconductor material resulting in a relatively deep V-shaped groove formed in the material between source and drain with the channel passing around this V-groove.
    Type: Grant
    Filed: September 12, 1974
    Date of Patent: January 18, 1977
    Assignee: Canadian Patents and Development Limited
    Inventors: Frank E. Holmes, Clement A. T. Salama