Patents by Inventor Douglas W. Ormond, Jr.

Douglas W. Ormond, Jr. 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 producing a plurality of layers of metallurgy
    Patent number: 4805683
    Abstract: A method for selectively depositing a plurality of metal layers on a substrate. The method includes the steps of depositing at least one layer of blanket metal on a surface of a substrate, building a lift-off stencil over the blanket metal, depositing at least one layer of redundant metal over the lift-off stencil, depositing a first etch-resistant barrier over the redundant metal, removing the lift-off stencil and the overlying layers of redundant metal and the etch-resistant barrier, depositing a second etch-resistant barrier over the blanket metal and the first etch-resistant barrier, and then reactive ion etching (RIE) the second etch-resistant barrier so as to expose the blanket metal and at least partially remove the second etch-resistant barrier from the first etch-resistant barrier. A final step of the method includes etching the blanket metal. Also disclosed is a metallurgical structure for a packaging substrate. The metallurgical structure includes layers of blanket metal and redundant metal.
    Type: Grant
    Filed: March 4, 1988
    Date of Patent: February 21, 1989
    Assignee: International Business Machines Corporation
    Inventors: Ingrid E. Magdo, Douglas W. Ormond, Jr.