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Razor II: In Situ Error Detection and Correction for PVT and SER Tolerance

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Razor II: In Situ Error Detection and Correction for PVT and SER Tolerance Research paper

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Performance variation due to PVT uncertainty has led to an increased interest in adaptive designs. Traditional methods for adaptive design have used so-called canary circuits that mimic the critical-path delay of the actual design. However, canary circuits require safety margins for possible mis-tracking and intradie PVT variations. They also have difficulty responding to rapidly changing conditions.