Patent ID: 7217614
Filing Date: 2007-05-15
Classification: C23C,H01L

Abstract:
1. A method of forming an electronic device comprising: providing a first electrode and a doped oxide layer laterally proximate thereof over a substrate; forming a silicon nitride layer over both the doped oxide layer and the first electrode to a thickness of no greater than 80 Angstroms over at least the first electrode by low pressure chemical vapor deposition using feed gases comprising a silicon hydride, H exposing the substrate with silicon nitride layer to oxidizing conditions comprising at least 700° C. to form a silicon dioxide layer over the silicon nitride layer, with the thickness of silicon nitride over the doped oxide layer being sufficient to shield oxidizable substrate material beneath the doped oxide layer from oxidizing during the exposing; and forming a second electrode over the silicon dioxide layer and the first electrode.