The binary compound semiconductors, InSb and InAs, along with their related alloys with similar lattice constants are candidates for high-speed, low-power electronic devices. Applications could include high- speed analog and digital systems used for data processing, communications, imaging, and sensing, particularly in portable equipment such as hand-held devices and satellites. The development of Sb-based transistors for use in low-noise high-frequency amplifiers, digital circuits, and mixed-signal circuits could provide the enabling technology needed to address these rapidly expanding...