Specific Process Knowledge/Etch/IBE⁄IBSD Ionfab 300/IBE blazed gratings
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30min etch with 100nm Cr mask, used recipe BGHE blazed gratings with CHF3
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45min etch with 100nm Cr mask, used recipe BGHE blazed gratings with CHF3
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20min etch with Krf resist, all resist is gone, used recipe BGHE blazed gratings
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15+30min etch with 50nm Cr mask, used recipe BGHE blazed gratings with CHF3