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이경철,이천,Lee, Kyoung-Cheoul,Lee, Cheon 한국전기전자재료학회 1997 電氣電子材料學會誌 Vol.10 No.7
A Single-crystalline Mn-Zn Ferrite (110 orientation) was masklessly etched by focused Ar laser irradiation in an H$_3$PO$_4$ solution. The depth of the etched grooves increases with increasing a laser power, decreasing a scan speed, and increasing the H$_3$PO$_4$concentration. The width of the etched grooves increases with a increasing laser power, but was relatively insensitive to the scan speed and H$_3$PO$_4$concentration. High etching rate of up to 714 ${\mu}{\textrm}{m}$/s and an aspect ratio of 6 for vertical slab structure have been obtained by the light-guiding effect of the laser bean in the H$_3$PO$_4$ solution.