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Today’s analog/RF verification methodologies are severely tool limited. Characterizing complex blocks and running full-circuit performance simulation is impossible using traditional SPICE and digital fastSPICE tools. Circuit designers work around today’s simulator accuracy, performance, and capacity limitations to verify as much as possible and then hope their silicon is functional and meets spec. In the face of increasing circuit complexity, new physical effects, complex device models, low voltages, GHz frequencies, nanometer bulk processes, tighter specs, and short market windows, this approach has hit a wall.
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