| 摘要 |
A conducting line of a semiconductor device using an aluminum oxide layer as a hard mask, and a method of forming the conducting line. The conducting line, such as a gate line or a bit line of a semiconductor device, includes a conductive layer formed on a semiconductor substrate, a capping insulation layer formed on the conductive layer, and an aluminum oxide layer formed on the capping insulation layer, with the aluminum oxide layer being used as a hard mask.
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