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Inductively coupled plasma etching of ZnO

The etching characteristics of ZnO epitaxial layers in Oxford Plasmalab 100 ICP 180 and 380 systems are investigated. Etch rates are studied as a function of gas composition, ICP power and RF bias power. Surface profilometry and scanning electron microscopy are used to characterize etch rates and surface morphologies. Highlights from other recently published results are also discussed.