ABSTRACT
SiGe HBT BiCMOS technology is the obvious groundbreaker of the Si heterostructures application
space and numerous commercial products exist around the world. At present count there are 25 þ SiGe HBT industrial fabrication facilities on line in 2005, and growing steadily. In fact, virtually every major
player in the communications electronics market either (a) has SiGe up and running in-house, or (b) is
using someone else’s SiGe fab as foundry for their designers. Clearly this field is maturing rapidly.
