Patents Assigned to Phoenix VLSI Consultants Limited
  • Bipolar transistor having a collector well with a particular concentration
    Patent number: 5528066
    Abstract: A bipolar transistor module which can be implemented into existing CMOS processes without the use of buried layers of epitaxy is described. The transistor makes use of a synthesis of new ideas to achieve high performance. Extended polysilicon electrodes (2,4,6) are utilised to reduce device dimensions and a compatible well is described which maintains a p-channel MOS transistor electrical characteristics whilst lowering the collector series resistance.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: June 18, 1996
    Assignee: Phoenix VLSI Consultants Limited
    Inventor: Peter C. Hunt