AVALANCHE MULTIPLICATION IN BULK N-SI

The avalanche coefficient of electrons α has been measured in bulk n-Si for the first time. The measured values of α fit the theoretical curves of Baraff with εg < εi < 1.5 εg and 60 < λ < 80 A, where εi is the ionization energy and λ is the phonon mean-free path. The values of α agree with the extrapolated values from the p-n junction data of Lee, et al., but disagree with the results of Ogawa. © 1969 The American Institute of Physics.