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Deep ultraviolet enhanced wet chemical oxidation and etching of gallium nitride

Authors :
C.-W. Chuang
J.-K. Ho
Lung-Han Peng
Chiu-Chang Huang
Cheng-Chi Chen
Yun-Tzu Hsu
Source :
Technical Digest. Summaries of Papers Presented at the Conference on Lasers and Electro-Optics. Conference Edition. 1998 Technical Digest Series, Vol.6 (IEEE Cat. No.98CH36178).
Publication Year :
1998
Publisher :
IEEE, 1998.

Abstract

We present a use of deep UV irradiation to enhance the oxidative-dissolution process in the photoelectrochemical etching of gallium nitride (GaN). Our study indicates that the hydration effect plays an important role in establishing a peak etch rate as high as 90 nm/min. and 120 nm/min. in aqueous potassium hydroxide (KOH) and phosphorus acid (H/sub 3/PO/sub 4/) solutions at pH=14.25 and 0.75, respectively.

Details

Database :
OpenAIRE
Journal :
Technical Digest. Summaries of Papers Presented at the Conference on Lasers and Electro-Optics. Conference Edition. 1998 Technical Digest Series, Vol.6 (IEEE Cat. No.98CH36178)
Accession number :
edsair.doi...........4643eeca935355eb3f16518e14b36feb
Full Text :
https://doi.org/10.1109/cleo.1998.675987