简介:摘要本文用椭偏仪测量砷化镓表面氧化层的厚度,并用XPS分析砷化镓表面氧化层的化学组成和氧化层的厚度,发现,清洗后的砷化镓晶片表面会发生自然氧化反应,自然氧化层主要有Ga203、As203、As2O以及少量As元素组成,且随着时间变长,氧化层的厚度越来越厚。
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