Design Based Metrology (DBM) implements a novel automation flow, which allows for a direct
and traceable correspondence to be established between selected locations in product designs and
matching metrology locations on silicon wafers. Thus DBM constitutes the fundamental enabler of
Design For Manufacturability (DFM), because of its intrinsic ability to characterize and quantify the
discrepancy between design layout intent and actual patterns on silicon. The evolution of the CDSEM
into a DFM tool, capable of measuring thousands of unique sites, includes 3 essential
functionalities: (1) seamless integration with design layout and locations coordinate system; (2) new
design-based pattern recognition and (3) fully automated recipe generation. Additionally advanced
SEM metrology algorithms are required for complex 2-dimensional features, Line-Edge-Roughness
(LER), etc. In this paper, we consider the overall DBM flow, its integration with traditional CDSEM
metrology and the state-of-the-art in recipe automation success. We also investigate advanced
DFM applications, specifically enabled by DBM, particularly for OPC model calibration and
verification, design-driven RET development and parametric Design Rule evaluation and selection.
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