Patent ID: 6856159
Filing Date: 2005-02-15
Classification: G01R

Abstract:
1. A method of determining first and second band-offsets at a semiconductor/dielectric heterointerface, the method comprising: exposing the semiconductor/dielectric heterointerface to incident photons; generating a signal by detecting emitted photons that have interacted with the semiconductor/dielectric heterointerface; changing the energy of the incident photons and monitoring the signal to determine a first threshold energy for injection of first carriers into the dielectric of the semiconductor/dielectric heterointerface, the first threshold energy corresponding to the first band-offset; and changing the energy of the incident photons beyond the first threshold energy and monitoring the signal to determine a second threshold energy for injection of second carriers into the dielectric of the semiconductor/dielectric heterointerface, the second threshold energy corresponding to the second band-offset.