A 2 Gb/s Throughput GaAs Digital Time Switch LSI Using LSCFL

Abstract
A GaAs four channel digital time switch having a 2.0 Gb/s throughput is developed. Low Power Source Coupled FET Logic (LSCFL) and 0.55 µm gate length buried p-layer SAINT-FETs are applied. The switch includes 1176 devices (FETs, diodes, and resistors). The 75 % fabrication yield is attained using dislocation free wafers.