Patents by Inventor Robert J. Ringhofer

Robert J. Ringhofer 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: 7512507
    Abstract: Methods and structures are described to provide trims for die on a wafer. The trims are set on a die-by-die basis instead of a wafer basis. Accordingly, the individual die are more finely tuned and more die operate at the target specifications so that yield is increased. In an embodiment, the odd and even blocks of each non volatile memory die are erased and then programmed to test the program time. Statistical analysis of the tested program times is performed. Based on this analysis the trim values are determined and programmed into the die. Accordingly, each die on a wafer has its individual trim settings.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: March 31, 2009
    Assignee: Micron Technology, Inc.
    Inventors: Scott N. Gatzemeier, Joemar D. Sinipete, Robert J. Ringhofer, Nevil Gajera, Mark A. Hawes