FLIP-CHIP PHOTODETECTOR FOR HIGH-SPEED COMMUNICATIONS INSTRUMENTATION

A family of 7-GHz-bandwidth optical receivers and a nine-channel optic al receiver with a gigabit-per-second data rare per channel have been developed for multigigabit lightwave test systems for long-haul fiber- optic telecommunications links and gigabit optical interconnects for c omputer systems. A new micro-flip-chip process, featuring liftoff-base d small-diameter solder bumps, is incorporated with HP high-speed InP p-i-n photodetectors to minimize parasitic capacitance and inductance and enhance responsivity.