Patent ID: 6770500
Filing Date: 2004-08-03
Classification: H01L

Abstract:
A process of passivating a metal-gated CMOS structure comprising:disposing a metal-gated CMOS in a chamber; evacuating ambient air from said chamber; introducing molecular hydrogen into said evacuated chamber to provide a hydrogen pressure of at least 200 Torr; sequentially heating metal-gated CMOS structure in said chamber to a temperature in the range of between about 250Â° C. and about 500Â° C.; cooling said chamber to a temperature of no more than about 200Â° C.; purging said chamber; and removing said metal-gated CMOS structure from said chamber, wherein said passivating of said metal-gated CMOS structure results in a density of interface states of less than about 1e11/cm2-eV at a dielectric substrate interface.