| 摘要 |
According to one embodiment, a method for encapsulating a conductive structure having a first layer, a second layer and a third layer, with a cladding layer, for improved electromigration performance is described. The method comprises the following steps: forming a fourth layer over the conductive structure and reacting at least a portion of the first layer, the third layer and the fourth layer with a portion of the second layer to form a cladding layer that encapsulates an unreacted portion of the second layer. In one embodiment of the present invention, the cladding layer is TiAl3.
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