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Proceedings Paper

Comparison of fabrication approaches for selectively oxidized VCSEL arrays
Author(s): Kent M. Geib; Kent D. Choquette; Andrew A. Allerman; Ronald D. Briggs; Jana Jo Hindi
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Paper Abstract

The impressive performance improvements of laterally oxidized VCSELs come at the expense of increased fabrication complexity for 2-dimensional arrays. Since the epitaxial layers to be wet-thermally oxidized must be exposed, non-planarity can be an issue. This is particularly important in that electrical contact to both the anode and cathode of the diode must be brought out to a package. We have investigated four fabrication sequences suitable for the fabrication of 2- dimensional VCSEL arrays. These techniques include: mesa etched polymer planarized, mesa etched bridge contacted, mesa etched oxide isolated (where the electrical trace is isolated from the substrate during the oxidation) and oxide/implant isolation (oxidation through small via holes) all of which result in VCSELs with outstanding performance. The suitability of these processes for manufacturing are assessed relative to oxidation uniformity, device capacitance, and structural ruggedness for packaging.

Paper Details

Date Published: 1 May 2000
PDF: 5 pages
Proc. SPIE 3946, Vertical-Cavity Surface-Emitting Lasers IV, (1 May 2000); doi: 10.1117/12.384385
Show Author Affiliations
Kent M. Geib, Sandia National Labs. (United States)
Kent D. Choquette, Sandia National Labs. (United States)
Andrew A. Allerman, Sandia National Labs. (United States)
Ronald D. Briggs, Sandia National Labs. (United States)
Jana Jo Hindi, Sandia National Labs. (United States)

Published in SPIE Proceedings Vol. 3946:
Vertical-Cavity Surface-Emitting Lasers IV
Kent D. Choquette; Chun Lei, Editor(s)

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