Patent ID: 6528364
Filing Date: 2003-03-04
Classification: C23C,H01L

Abstract:
A method of forming electronic devices comprising:forming a first electrode and a doped oxide layer laterally proximate thereof over a plurality of semiconductor wafers; providing the plurality of wafers with said first electrodes and doped oxide layers within a hot wall, low pressure chemical vapor deposition reactor; low pressure chemical vapor depositing a silicon nitride layer over both the doped oxide layers and the first electrodes of individual of the plurality of wafers to a thickness of no greater than 80 Angstroms over at least the first electrodes using feed gases comprising a silicon hydride and ammonia, the chemical vapor depositing comprising injecting the silicon hydride to within the reactor from multiple spaced locations positioned proximate spaced wafers of the plurality; after the chemical vapor depositing, exposing the wafers with silicon nitride layer to oxidizing conditions comprising at least 700Â° C. to form a silicon dioxide layer over the respective silicon nitride layers, with the thickness of silicon nitride over the doped oxide layer being sufficient to shield oxidizable material beneath the doped oxide layers from oxidizing during the exposing; and forming a second electrode over the silicon dioxide layer and the first electrode on individual wafers.