TECHNIQUE FOR ENHANCING DOPANT ACTIVATION BY USING MULTIPLE SEQUENTIAL ADVANCED LASER/FLASH ANNEAL PROCESSES

摘要

By performing multiple radiation-based anneal processes on the basis of less critical process parameters, the overall risk for creating anneal-induced damage, such as melting of gate portions, may be substantially avoided while nevertheless the respective degree of dopant activation may be enhanced for each individual anneal process. Consequently, the sheet resistance of advanced transistor devices may be reduced with a decreasing number of sequential anneal processes.