Patents by Inventor Micheal E. McCoy

Micheal E. McCoy 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).

  • Metallurgical method for die attaching silicon on sapphire devices to obtain heat resistant bond
    Patent number: 4078711
    Abstract: A method for attaching a silicon-on-sapphire (SOS) device to a gold-plated surface of a package for the device. A layer of a metal adherent to both sapphire and gold such as, for example, tungsten, is deposited on the back side of a wafer of the devices. A layer of gold is then deposited on the tungsten layer. A preform of an alloy compatible with gold, such as gold-germanium, interposed between and in contact with the die and the package, is heated and then cooled to bond the die to the surface of the package.
    Type: Grant
    Filed: April 14, 1977
    Date of Patent: March 14, 1978
    Assignee: Rockwell International Corporation
    Inventors: Herbert A. Bell, Micheal E. McCoy, Francis J. Woolston