| 摘要 |
<p>A method of fabricating a semiconductor device wherein, in forming an overlay mark in a scribe line region between dies in a mask process, a semiconductor substrate is provided in which a contact plug is formed in a contact hole of a dielectric layer in the scribe line region and a trench is formed on the contact plug. A first metal layer for a metal line is formed in the contact plug and the dielectric layer through an ALD (Atomic Layer Deposition) method so that a step generated by the trench remains intact. A second metal layer for a metal line is formed on the first metal layer using a sputtering method so that the step remains intact.</p> |
