A BiCMOS integrated circuit is fabricated using a minimum number of wafer processing steps and yet offers the IC circuit designer five (5) different transistor types. These types include P-channel and N-channel MOS transistors and three different bipolar transistors whose emitters are all formed by a...http://www.google.com.au/patents/US6043541?utm_source=gb-gplus-sharePatent US6043541 - Bipolar-CMOS (BiCMOS) process for fabricating integrated circuits
