Patents by Inventor Hector R. Sucar

Hector R. Sucar 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).

  • Interface between IC operational circuitry for coupling test signal from internal test matrix
    Patent number: 5202624
    Abstract: A programmable interface apparatus between a first circuit and either a second operational circuit, or a primary pin, of an IC includes a latch for receiving a test signal. The latch is controlled using probe lines and sense lines from an internal test matrix. In one configuration, such an interface is programmably configured to couple either a primary input signal or a test signal to the operational circuitry. In another configuration, such an interface is programmably configured to couple either an operational circuit signal or a test signal to a primary output pin. In still another configuration, such an interface is programmably configured to couple either an operational circuit signal or a test signal to an operational circuit element. In one embodiment, the interface is formed with a pair of transmission gates, the latch and an invertor. An advantage of such structure is the minimal IC area required.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: April 13, 1993
    Assignee: Cross-Check Technology, Inc.
    Inventors: Tushar R. Gheewala, Hector R. Sucar