Patents Represented by Attorney, Agent or Law Firm Finnegan, Henderson, Farabow & Dunner, L.L.P.
  • Patent number: 6275428
    Abstract: There is provided a memory-embedded semiconductor integrated circuit device capable of being tested in a shorter test time. The memory-embedded semiconductor integrated circuit device includes: a logic part provided on a semiconductor substrate; a memory macro provided on the semiconductor substrate to be consolidated with the logic part; a test input terminal for inputting a test input signal; a test circuit including a test signal generator for generating an output switching signal and a test signal, which serves to carry out a test operation of the memory macro, on the basis of the test input signal, and a switching circuit for selectively outputting one of an output of the memory macro, which has been test-operated by the test signal, and the test input signal in accordance with the output switching signal; and a test output terminal for receiving an output of the switching circuit to output the output of the switching circuit to the outside.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: August 14, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ryo Fukuda, Osamu Wada, Shinji Miyano
  • Patent number: D401421
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: November 24, 1998
    Assignee: Fort James Corporation
    Inventor: Gaylyn A. Schulz