作者: Jaim Nulman , Kenny King-Tai Ngan
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摘要: A process is described for forming, over a silicon surface, titanium nitride barrier layer having surface of (111) crystallographic orientation. The comprises: depositing first surface; sputtering the layer; second sputtered and then annealing structure in presence nitrogen-bearing gas, absence an oxygen-bearing to form desired orientation sufficient thickness provide protection underlying against spiking aluminum. When aluminum subsequently formed oriented will assume same orientation, resulting enhanced resistance electromigration.