C - Diamond

Impact Ionization

Breakdown fields in the 106÷107 V/cm range have been reported in several papers for natural diamonds (Bogdanov et al. [1982]; Konorova et al. [1983]). Breakdown fields in excess of 2·107 V/cm have been reported by (Landstrass et al. [1993]) for homoepitaxial diamond films.

Ionization rates for electrons and holes (αii) versus 1/F.
(Trew et al. [1991]).
αii=1. 935·108·exp(-7.749·106/F), where F is electric field in V/cm.