Patent ID: 6838340
Filing Date: 2005-01-04
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device, comprising: (a) forming a first interlayer insulation film on a semiconductor substrate; (b) depositing a first metal film on said first interlayer insulation film; (c) depositing an antireflection film including a dielectric layer on an upper surface of said first metal film; (d) patterning said first metal film and said antireflection film to form a lower electrode having said antireflection film on an upper surface thereof; (e) forming a second interlayer insulation film on said antireflection film; (f) forming first and second openings in a first region and in a second region in said second interlayer insulation film, respectively; (g) removing a portion of said antireflection film where said second opening is formed; (h) depositing a second metal film on said second interlayer insulation film; and (i) removing said second metal film except in said first and second openings to form an upper electrode in said first opening, and a contact in said second opening.