w Thickness of the chip Ratio of defformation potential constants Y Function of band mass parameters Ratio of density-of-state effective masses Yhha Hole-hole reduction factor for acoustic phonon scattering Yhh Hole-hole reduction factor for ionized impurity scattering Y hh0 Hole-hole reduction factor for optical phonon scattering A Energy of spin orbit splitting Reduced energy (E/k T) 0Variable of integration E2 Variable of integration E s Relative dielectric constant Limit of integration Reduced Fermi-energy nIl Scaling factor 0 Spherical coordinate .0D Debye temperature PC Conductivity mobility in the combined band UCi Conductivity mobility in band i Hall mobility in the combined band Limit of integration defined in Figure 2.1 P Resistivity of holes Ps Density of silicon aC Electrical conductivity aH Hall conductivity T Total scattering relaxation time T aci Acoustic phonon scattering relaxation time in band i xiii