Patent ID: 11061083

Abstract:
Determining a distribution of carrier mobilities in a material of an electronic device includes acquiring a magnetic field-dependent Hall measurement of the material exposed to a finite number of magnetic fields, wherein the magnetic field-dependent Hall measurement includes an electrical signal generated in response to the finite number of magnetic fields being applied perpendicular to a current through the material; and processing the magnetic field-dependent Hall measurement, using a computer, to determine a continuous, least-biased distribution of carrier mobilities that match the magnetic field-dependent Hall measurement by determining, using the magnetic field-dependent Hall measurement, a probability density function of a conductance of the material; approximating the mobility spectrum to a maximum-entropy spectrum of the material; and determining an energy dependence of carrier scattering in the material based on the maximum-entropy spectrum. The final maximum-entropy mobility spectrum identifies a least-biased estimate of the distribution of the carrier mobilities in the material.