Invention Grant
US07829243B2 Method for plasma etching a chromium layer suitable for photomask fabrication 失效
用于等离子体蚀刻适用于光掩模制​​造的铬层的方法

Method for plasma etching a chromium layer suitable for photomask fabrication
Abstract:
A method for etching a chromium layer is provided herein. In one embodiment, a method for etching a chromium layer includes providing a filmstack in an etching chamber, the filmstack having a chromium layer partially exposed through a patterned layer, providing at least one halogen containing process gas to a processing chamber, biasing the layer disposed on a substrate support in the processing chamber with a plurality of power pulses less than 600 Watts, and etching the chromium layer through a patterned mask. The method for plasma etching a chromium layer described herein is particularly suitable for fabricating photomasks.
Information query
Patent Agency Ranking
0/0