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Engineering | DEfECT Lab

Capacitance Voltage (CV)

CVThe measurement of capacitance as a function of voltage allows for the determination of many important interface and bulk parameters, such as fixed charges, interface state densities, band offsets, carrier transport, as well as doping types and densities.

The tool consists in a  HP4294A Precision Impedance Analyser and a software that enables equivalent circuit analysis and extraction of capacitance values. Impedance can be measured in a 40 Hz to 110MHz frequency and typically 100–870 K temperature range.