Patent ID: 6607953
Filing Date: 2003-08-19
Classification: H01L

Abstract:
A method for forming a storage capacitor for a memory device, said method comprising the steps of:forming a bottom electrode of said storage capacitor; forming a storage capacitor dielectric layer over said bottom electrode, said storage capacitor dielectric layer consisting of a nitride layer that is 50 Ã¥ or less in thickness; exposing said nitride layer to oxidation during a first stage rapid thermal oxidation step at a temperature of approximately 950Â° C. for approximately 20 seconds; exposing said nitride layer to wet oxidation during a second stage rapid thermal oxidation step, said second stage rapid thermal oxidation step performed at a temperature of approximately 850Â° C. and a time duration of less than 40 seconds; forming a top electrode of said storage capacitor over said storage capacitor dielectric layer.