Patent ID: 7393741
Filing Date: 2008-07-01
Classification: H01L

Abstract:
1. A method of forming a plurality of capacitors, comprising: forming material over individual capacitor storage node locations on a substrate; forming a patterned masking layer over the material, the patterned masking layer comprising openings therethrough to an outer surface of the material, individual of the openings being received over individual of the capacitor storage node locations; forming a pit in the material outer surface within individual of the openings; after the forming of a pit in the material outer surface within individual of the openings, anodically oxidizing the material through the openings effective to form a single oxide-lined channel in individual of the openings over the individual capacitor storage node locations; forming individual capacitor electrodes within individual of the channels in electrical connection with the individual capacitor storage node locations; and removing at least some of the oxide from the oxide-lined channels and incorporating the individual capacitor electrodes into a plurality of capacitors.