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Proceedings Paper

Heterogeneous 3D integration of multi-spectral photonic sensor with highly oriented micro/nano-pillars of semiconductors
Author(s): V. J. Logeeswaran; Jacob Goodwin; Aaron M. Katzenmeyer; M. Saif Islam
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Paper Abstract

We developed a novel method for three-dimensional heterogeneous integration of devices based on any semiconductor material on a pliant surface with arbitrary surface profile. Arrays of optical detectors in the form of vertically oriented micro/nano-pillars with diverse bandgaps and physical properties are fabricated via synthetic bottom-up or transformative top-down approaches on a single crystal surface and then transferred to a different target surface using a polymer assisted shear-fracturing process. The original wafers are used repeatedly for generating more devices and are never consumed. Ohmic contacts with low contact resistance are formed for individual electrical addressing of each layer of sensors using metals and/or conducting polymer such as PAni and PEDOT:PSS. The method offers an opportunity for device fabrication with low fill factor contributing to lower dark current, reduced parasitic capacitance and higher efficiency of light absorption.

Paper Details

Date Published: 11 May 2009
PDF: 10 pages
Proc. SPIE 7318, Micro- and Nanotechnology Sensors, Systems, and Applications, 731805 (11 May 2009); doi: 10.1117/12.821791
Show Author Affiliations
V. J. Logeeswaran, Univ. of California, Davis (United States)
Jacob Goodwin, Univ. of California, Davis (United States)
Aaron M. Katzenmeyer, Univ. of California, Davis (United States)
M. Saif Islam, Univ. of California, Davis (United States)

Published in SPIE Proceedings Vol. 7318:
Micro- and Nanotechnology Sensors, Systems, and Applications
Thomas George; M. Saif Islam; Achyut K. Dutta, Editor(s)

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