2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/16207In this paper an asymptotic solution of the spherical harmonics equations describing the charge transport in semiconductors is found. This solution is compared with a numerical solution for bulk silicon device. We also indicate application of this solution to the construction of high field hydrodynamical models.10 pages, LaTex, 3 figures (postscript) included in the textStatistical Mechanicstext