Method for fabricating capacitors in semiconductor devices

   
   

A method for fabricating a capacitor of a semiconductor device is disclosed, which can control the composition of a dielectric layer easily and improve the property of leakage current while not dropping the throughput because it does not need to require to lower the process temperature and pressure. The method includes: a) forming a bottom electrode; b) forming an STO seed layer as a first dielectric layer on the bottom electrode; c) forming a BST layer as a second dielectric layer on the STO seed layer; and d) forming a top electrode on the BST layer.

 
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