High-speed resonant-cavity-enhanced Schottky photodiodes
Ata, E. P.
Ünlü, M. S.
Conference on Lasers and Electro-Optics Europe - Technical Digest
IEEE, Piscataway, NJ, United States
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The top-illuminated Schottky photodiodes were fabricated by a microwave-compatible monolithic microfabrication process. Fabrication started with formation of ohmic contacts to n+ layers. Mesa isolation was followed by a Ti-Au interconnect metallization. Following this, a semitransparent Au Schottky metal and a silicon nitride layer was deposited. Finally, a thick Ti-Au layer was deposited to form an air bridge connection between the interconnect and the Schottky metal. The optical properties of the photodiodes were simulated using a transfer matrix method.
Resonant cavity enhanced photodetectors