Patent ID: 6939759
Filing Date: 2005-09-06
Classification: H01L

Abstract:
1. A method for manufacturing capacitor of semiconductor device, the method comprising the steps of: forming an interlayer insulating film on a semiconductor substrate having a lower structure; sequentially forming a bonding layer and a hard mask layer on the interlayer insulating film; etching the hard mask layer, the bonding layer and the interlayer insulating film to form a storage electrode contact hole exposing a predetermined region of the semiconductor substrate for a storage electrode contact; forming a storage electrode contact plug filling a predetermined depth of the storage electrode contact hole; forming a barrier metal layer on the entire surface of the semiconductor substrate to fill up the storage electrode contact hole; planarizing the barrier metal layer using the hard mask layer as an etch stop layer to form a barrier metal layer pattern; removing the hard mask layer; and forming a storage electrode contacting the barrier metal layer pattern on the bonding layer.