A new technique to extract channel mobility in submicron MOSFETs using inversion charge slope obtained from measured S-parameters

We present a novel method to extract the effective channel mobility directly from measured S-parameters in submicron MOSFETs. This method is based on the slope extraction of the total gate charge versus mask gate length from measured S-parameters. Unlike conventional approaches, the use of a very long channel test device or the extraction of the parasitic capacitance and effective channel length are not required to extract the mobility in short-channel LDD devices, thus making the new method more accurate and simpler. The validity of the method is demonstrated by comparing the result with those using a previously reported method.