Patent ID: 7244648
Filing Date: 2007-07-17
Classification: C23C,H01L

Abstract:
1. A method of forming a semiconductor construction, comprising: providing a semiconductor substrate; the substrate comprising a silicon-containing region, and a silicon-oxide-containing region; forming a mask over and in contact with the silicon-containing region; while the mask is over the silicon-containing region, forming a nitrogen-containing material across at least a portion of the silicon-oxide-containing region; after forming the nitrogen-containing material, removing the mask; after removing the mask, forming a silicon nitride layer which extends across the silicon-containing region and the silicon-oxide-containing region, the silicon nitride layer being over the nitrogen-containing material; conductively-doping the silicon-containing region to define a first capacitor electrode; and incorporating the first capacitor electrode and the silicon nitride layer into a capacitor construction.