Introduction Capacitance versus voltage (CV) char- acteristics measured with the Quasi- Static CV (QSCV) method are impor- tant for device characterization. High- frequency CV (HFCV) curves do not yield knowledge about MOS oxide behavior in the important inversion regime; only QSCV curves can reveal this information. Thus, QSCV measure- ments are critical for the analysis of modern thin-oxide MOS processes.