| 摘要 |
A method of manufacturing a semiconductor device includes forming an insulating layer over the semiconductor substrate and the gate electrode. An insulating layer may have a via hole connected to the semiconductor substrate or the gate electrode and a trench connected to the via hole. A first barrier layer and a second barrier layer may be formed. The first barrier layer and the second barrier layer may be annealed to form a silicide and combine the first barrier layer and the second barrier layer to form a metal compound.
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