Patents by Inventor Francis Woytowich, Jr.

Francis Woytowich, 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).

  • Self-timed AC CIO wrap method and apparatus
    Patent number: 6058496
    Abstract: A method and apparatus for testing a semiconductor chip includes providing the semiconductor chip with a common input/output (I/O) or bidirectional I/O pad. The I/O pad is electrically coupled to an off-chip driver (OCD) and an off-chip receiver (OCR). The OCD, I/O pad, and OCR are combined in a common input/output (CIO) or bidirectional I/O configuration. The I/O pad is effectively open circuited by an external tester and a performance parameter of the IO circuits connected to the open circuited pad is tested.
    Type: Grant
    Filed: October 21, 1997
    Date of Patent: May 2, 2000
    Assignee: International Business Machines Corporation
    Inventors: Pamela Sue Gillis, Kevin William McCauley, Ronald J. Prilik, Donald Lawrence Wheater, Francis Woytowich, Jr.