| 摘要 |
<p>The present invention relates to an etching solution composition for a copper film and a titanium film, and a method of preparing an array substrate for a liquid crystal display using the same. More specifically, the present invention relates to an etching solution composition for a copper film and a titanium film and a method of preparing an array substrate for a liquid crystal display using the same, wherein the etching solution composition includes persulfate and sulfosalicylic acid to be environmentally friendly and have excellent heating control performance; to quickly, uniformly, and simultaneously etch a plurality of metal films made up by copper films and titanium films; and to have temporal stability.</p> |
