Monitoring detectivity of the wafer edge, bevel and apex - the areas beyond the pattern - is becoming increasingly important in the yield enhancement efforts of high-end fabs. In this paper we present a methodology for root cause analysis of edge and bevel defects, based on inline SEM review and EDX-based material analysis.
Published in:
Advanced Semiconductor Manufacturing Conference, 2008. ASMC 2008. IEEE/SEMI
Date of Conference: 5-7 May 2008