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Statistical MOSFET Parameter Extraction with Parameter Selection for Minimal Point Measurement

Author(s): Marga Alisjahbana

ISSN 1693-6930

Volume: 11;
Issue: 3;
Date: 2013;
Original page

A method to statistically extract MOSFET model parameters from a minimal number of transistor I(V) characteristic curve measurements, taken during fabrication process monitoring. It includes a sensitivity analysis of the model, test/measurement point selection, and a parameter extraction experiment on the process data. The actual extraction is based on a linear error model, the sensitivity of the MOSFET model with respect to the parameters, and Newton-Raphson iterations. Simulated results showed good accuracy of parameter extraction and I(V) curve fit for parameter deviations of up 20% from nominal values, including for a process shift of 10% from nominal.
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