A. Mounib et al., LOW-FREQUENCY NOISE SOURCES IN POLYSILICON EMITTER BJTS - INFLUENCE OF HOT-ELECTRON-INDUCED DEGRADATION AND POSTSTRESS RECOVERY, I.E.E.E. transactions on electron devices, 42(9), 1995, pp. 1647-1652
The noise properties of polysilicon emitter bipolar transistors are st
udied. The influences of the various chemical treatments and annealing
temperatures, prior and after polysilicon deposition, on the noise ma
gnitude are shown. The impact of hot-electron-induced degradation and
post-stress recovery on the base and collector current fluctuations ar
e also investigated in order to determine the main noise sources of th
ese devices and to gain insight into the physical mechanisms involved
in these processes.