Used 7 um spr 220-7 resist as mask. After 4 hours baking at 110C. Ran one wafer with deep_smooth for 2 hours, and another wafer with fastdeep for 2 hours. Used wafer holder on both wafers. Gas flow rates were consistent with previous runs.
Both wafers had PR completely burned off after approx. 1.5 hours of etching.
Wednesday, August 10, 2011
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