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半导体学报 2009
Annealing before gate metal deposition related noise performance in AlGaN/GaN HEMTs
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Abstract:
For a further improvement of the noise performance in AlGaN/GaN HEMTs,reducing the relatively high gate leakage current is a key issue.In this paper,an experiment was carried out to demonstrate that one method during the device fabrication process can lower the noise.Two samples were treated differently after gate recess etching:one sample was annealed before metal deposition and the other sample was left as it is.From a comparison of their Ig-Vg characteristics,a conclusion could be drawn that the annealin...