2022 年 142 巻 10 号 p. 259-265
At present, there is no suitable mask for the etching process to fabricate micron-level textures on stainless steel. In this paper, we take advantage that Si can be processed as fine structures with a high aspect ratio. We fabricated Si structures with through-holes of 2μm width. This Si structure was applied as a hard mask for dry etching based on Ar+ ions of stainless steel,and the aspect ratio obtained is about 2, the effectiveness of Si hard mask is confirmed.
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