Patent ID: 6376392
Filing Date: 2002-04-23
Classification: C23C,G03F,H01L

Abstract:
A process for manufacturing a layer of silicon oxycarbide, comprising:providing a reaction vessel suitable for plasma enhanced chemical vapor deposition; placing a substrate in said vessel and heating the substrate to a temperature between about 250 and 400Â° C.; admitting a carrier gas into the vessel at a flow rate between about 2,000 and 7,000 sccm; admitting silane into the vessel at a flow rate between about 1,000 and 2,000 sccm; admitting methyl-silane into the vessel at a flow rate between about 200 and 800 sccm; pumping the contents of the vessel whereby an equilibrium pressure between about 1 and 5 torr is maintained; initiating an RF discharge within the vessel at a power level between about 750 and 1,500 watts; and thereby depositing said layer of silicon oxycarbide at a deposition rate between about 4,000 and 6,000 Angstroms per minute.