Putting the spotlight on the most mature Si heterostructure devices and, not surprisingly, the most completely researched, this book covers silicon-based heterostructure devices including SiGe HBTs, heterostructure FET, other heterostructure devices, and optoelectronic components. The chapters discuss overview, characteristics, and derivative applications of each device. The book contains numerous "snapshot" views of the industrial state-of-the-art for SiGe HBT BiMOCS technology. Easy reference appendices provide properties of silicon and germanium, the generalized moll-ross relations, integral charge-control relations, and simple SiGe HBT Compact Model Parameters.