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We propose a test circuit for characterizing PlasmaInduced Damage (PID) based on a ring oscillator array for collecting high-quality BTI statistics. Two types of ring oscillators, PID protected and PID damaged, with built-in antenna structures were designed to separate PID from other effects. A beat frequency (BF) detection scheme was adopted to achieve high frequency measurement precision (>0.01%) in a short measurement time (>1μs) to prevent unwanted BTI recovery. The proposed circuit enables accurate PID-induced BTI lifetime prediction with different Antenna Ratios (ARs) in any type of device with any topology of antenna structure under any fabrication process. Measured frequency statistics from a 65nm test chip shows a 1.15% shift in the average frequency as a result of PID.

Background: Histopathological examination of renal biopsy has an important role in establishing glomerular disease in children. Objective: To describe and correlate the types of glomerular diseases reported in native kidney biopsy and their clinical presentations.