Hyun Cho, S.M. Donovan, C.R. Abernathy, S.J. Pearton, F. Ren
University of Florida, Gainesville
This article was presented as part of Symposium G, "Gallium Nitride and Related Alloys" at the 1998 Fall Meeting of the Materials Research Society held in Boston, Massachusetts, November 30-December 4.
A comparison of KOH, NaOH and AZ400K solutions for UV photo-assisted etching of undoped and n+ GaN is discussed. The etching is diffusion-limited (Ea < 6kCal·mol-1 ) under all conditions and is significantly faster with bias applied to the sample during light exposure. No etching of InN was observed, due to the very high n-type background doping (> 1020 cm-3 ) in the material.
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Cite this article as: MRS Internet J. Nitride Semicond. Res. 4S1, G6.40 (1999).
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