Patents Assigned to Mitsubishi Denki Kabushiki Kaisha Chiyoda-Ku
  • Semiconductor integrated circuit device
    Patent number: 6229741
    Abstract: A semiconductor integrated circuit device has a RAM (1) which has a plurality of memory cell groups containing memory cells of a number corresponding to the number of words used, and a RAM (30, 40, 50, or 60) as a redundant circuit which has memory cell group containing memory cells of a number corresponding to the number of words of the RAM (1). Either one of data from the RAM (1) and data from the RAM (30, 40, 50, or 60) is selected by a selector circuit (5) to use the latter as a redundant circuit.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: May 8, 2001
    Assignee: Mitsubishi Denki Kabushiki Kaisha Chiyoda-Ku
    Inventor: Hideshi Maeno