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Vertical field HMSM photodetector
Conference proceeding

Vertical field HMSM photodetector

Xia Zhao, Hung-jen Huang, Xiying Chen and B Nabet
Proceedings. 7th International Conference on Solid-State and Integrated Circuits Technology, 2004, v 3, pp 2328-2331
2004

Abstract

Application specific integrated circuits Computational modeling Computer simulation Electrons Fingers Gallium arsenide Optical computing Photodetectors Telephony Time factors
We have previously fabricated /spl delta/-doped heterostructure metal-semiconductor-metal (HMSM) photodetectors with a time response below the 10 ps level, which were much faster than devices of equivalent dimensions. Simulation results on static and dynamic aspects of device behavior indicate the improved performance is partially due to the /spl delta/-doping layer which transforms the lateral electric field to a vertical orientation. A direct result is that, by following the vertical field, photogenerated electrons reach contacts via the two-dimensional electron gas (2DEG) layer in a much shorter time, thus enhancing the transit time dependent dynamic performance.

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Web of Science research areas
Engineering, Electrical & Electronic
Materials Science, Multidisciplinary
Physics, Condensed Matter
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