Patents by Inventor Donald M. Brewer

Donald M. Brewer 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 for electroplating a film onto a substrate
    Patent number: 6241868
    Abstract: A method for electroplating a film onto a substrate. Electrical power is supplied to the plating surface through electrical contact made to contact pads on the underside of the substrate. Contact to the contact pads is made within a liquid-tight region. The contact pads are connected to the plating surface through the substrate. Because the contact scheme is provided within a liquid-tight region on the underside of the substrate, the contacts do not erode or become plated, nor do they consume an area of the plating surface.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: June 5, 2001
    Assignee: International Business Machines Corporation
    Inventors: Glen N. Biggs, Donald M. Brewer, James E. Fluegel, Suryanarayana Kaja, Ashwani K. Malhotra, Phillip W. Palmatier
  • Method and apparatus for making electrical contact to a substrate during electroplating
    Patent number: 6077405
    Abstract: A method and apparatus for electroplating a film onto a substrate. Electrical power is supplied to the plating surface through electrical contact made to contact pads on the underside of the substrate. Contact to the contact pads is made within a liquid-tight region. The contact pads are connected to the plating surface through the substrate. Because the contact scheme is provided within a liquid-tight region on the underside of the substrate, the contacts do not erode or become plated, nor do they consume an area of the plating surface.
    Type: Grant
    Filed: October 28, 1998
    Date of Patent: June 20, 2000
    Assignee: International Business Machines Corporation
    Inventors: Glen N. Biggs, Donald M. Brewer, James E. Fluegel, Suryanarayana Kaja, Ashwani K. Malhotra, Phillip W. Palmatier