Patent ID: 7824998
Filing Date: 2010-11-02
Classification: H01L

Abstract:
1. A method, comprising the steps of: (a) forming an amorphous carbon layer over a first dielectric layer formed over a substrate by a deposition process including: a flow of C (b) forming a second dielectric layer over the amorphous carbon layer; (c) forming an opening within the amorphous carbon layer and second dielectric layer by a first etch process to partially expose a top surface of the first dielectric layer; (d) forming a substantially conformal metal-containing layer over the second dielectric layer and within the opening; (e) forming a photoresist layer on an upper surface of the substantially conformal metal-containing layer and filling the opening; (f) removing an upper portion of the photoresist layer, the second dielectric layer, and a portion of the metal-containing layer; (g) removing a remaining portion of the photoresist layer within the opening; (h) removing the amorphous carbon layer by an oxygen-containing plasma process to expose the top surface of the first dielectric layer after the remaining portion of the photo resist layer has been removed; (i) forming an insulating layer over the metal-containing layer; and (j) forming a second metal-containing layer over the insulating layer to form a capacitor.