METHOD FOR CALCULATING FERMI LEVEL DEPENDENCE OF IMPACT IONIZATION PROBABILITY

摘要

PROBLEM TO BE SOLVED: To provide a high-speed calculation method of impact ionization probability depending on the position of the Fermi level. ;SOLUTION: Impact ionization probability, when the Fermi level is fixed to one point in a valence band or a conduction band, is calculated. The energy distribution of electrons after dispersion, when the Fermi level is fixed to one point by using random phase approximate and the energy distribution of electrons, after dispersion in the desired Fermi level are calculated. Then, respective integration values are obtained. Impact ionization probability in the desired Fermi level is obtained by multiplying impact ionization probability which is strictly calculated by the ratio of the integration value of the energy distribution of the electrons after dispersion.;COPYRIGHT: (C)2003,JPO