Patent ID: 6440815
Filing Date: 2002-08-27
Classification: H01L

Abstract:
A method for manufacturing dielectric capacitor comprising: forming a lower electrode film;forming a dielectric film consisting of metal oxide on the lower electrode; forming an upper electrode film on the dielectric film; forming a first mask on the upper electrode film; patterning an upper electrode by removing the upper electrode film with the first mask; removing the first mask after patterning the upper electrode; forming a first barrier film covering the surface of the upper electrode and the surface of the dielectric film exposed by patterning the upper electrode; forming a function film on the first barrier film; forming a second mask on the function film which is corresponding to the upper electrode; removing the function film and the first barrier film with the second mask; removing the second mask after removing the function film; and patterning the dielectric film and the lower electrode film with the function film as a mask.