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Flip-Chip Photodetector for High-Speed Communications Instrumentation
A family of 7-GHz-bandwidth optical receivers and a nine-channel optical receiver with a gigabit-per-second data rate per channel have been developed for multigigabit lightwave test systems for long-haul fiber-optic telecommunications links and gigabit optical interconnects for computer systems. A new micro-flip-chip process, featuring liftoff-based small-diameter solder bumps, is incorporated with HP high-speed InP p-i-n photodetectors to minimize parasitic capacitance and inductance and enhance responsivity.
by Tun S. Tan, David M. Braun, Tim L. Bagwell, Chris Kocot, Joseph Straznicky, and Susan R. Sloan
 Article 10 - dec97a10.pdf
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