Patent ID: 8148272
Filing Date: 2012-04-03
Classification: H01L,Y10S

Abstract:
1. A method for fabricating semiconductor devices, the method comprising: providing a semiconductor substrate having a surface region, the surface region having one or more contaminants, the one or more contaminants including at least a carbon species, the surface region having an overlying oxide layer; processing the surface region using at least a wet process to selectively remove the overlying oxide layer and expose the surface region including the one or more contaminants; subjecting the surface region to a laser treatment process for a time period of less than 1 second to increase a temperature of the surface region to greater than 1000 degrees Celsius to remove the one or more contaminants from the surface region; and removing the laser treatment process to cause a reduction in temperature to about 300 to about 600 degrees Celsius in a time period of less than 1 second.