Patents Represented by Attorney James L. Clingen
  • Patent number: 4866304
    Abstract: A BICMOS NAND gate has P channel transistors, N channel transistors, and NPN transistors. The NPN transistors and the P channel transistors combine to provide logic high drive which avoids having the comparatively slow P channel transistors tied together. The P channel transistors are combined with NPN transistors to avoid the accumulation of capacitance that must be driven by a P channel transistor as the number of inputs increases. This avoids the typical problem of having the P channel transistors having to drive more capacitance as the number of inputs increases.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: September 12, 1989
    Assignee: Motorola, Inc.
    Inventor: Ruey J. Yu