Patents Assigned to Philip K. Siu
  • Memory substitution system and method for correcting partially defective memories
    Patent number: 5644541
    Abstract: A memory system comprises a plurality of semiconductor memories with some bad bits, a substitution memory and a mapping logic to redirect external memory accesses to bad-bit locations in the semiconductor memories to good storage cells within the substitution memory.
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: July 1, 1997
    Assignees: Philip K. Siu, Lawrence K. Lo, Hing S. Tong
    Inventors: Philip K. Siu, Lawrence K. Lo, Hing S. Tong