Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2001.06b
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- Pages.33-36
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- 2001
Studies on Wet Etching of PHEMT with Citric acid based solutions
Citric acid 조성 비율에 따른 식각 특성에 관한 연구
Abstract
In this paper, we have studied the characteristics of wet etching using citric acid based wet etchant. We have used the citric acid / hydrogen peroxide solution, citric acid / hydrogen peroxide / D.I. water solution. From our experimental result, a volumetric 1:3 ratio of citric acid and hydrogen peroxide and 1 : 3 : 1 ratio of citric acid, hydrogen peroxide, and D.I. water is shown to be a better wet etchant of PHEMT's system.
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