Patents by Inventor James G. House

James G. House 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).

  • Patent number: 4415606
    Abstract: A process for reworking the upper level metal layer of an integrated circuit wafer having multiple levels of metal connected by vias through intermediate dielectric layers. In one form, a photoresist masking layer is first formed over the defective upper level metal using an expanded reverse field pattern of the vias. The wafer is then subjected to a metal etch to completely remove the exposed upper level metal while etching into the metal under the photoresist until the etching enters the metal in the via. Thereafter, the residual photoresist is removed. The rework process is concluded with a single chamber operation composed of a sputter etch followed by the deposition of new upper level metal. The concluding chamber sequence ensures the proper via metal surface conditioning for reliable deposition bonding of the new upper level metal deposited thereon.
    Type: Grant
    Filed: January 10, 1983
    Date of Patent: November 15, 1983
    Assignee: NCR Corporation
    Inventors: Thomas E. Cynkar, James G. House