An investigation of pnp polysilicon emitter transistors
Solid State Electronics , Volume 33 - Issue 7 p. 813- 818
The d.c. characteristics are computed for pnp polysilicon emitter transistors (PETs) in which a thin insulating layer is incorporated in the emitter structure. Both devices with, and without, a post-polysilicon deposition annealing treatment are modeled. The effects of the annealing are taken to be a reduction in the insulator thickness and the creation of a p-type monosilicon emitter region. The simulations reveal that moderate current gains, around 300, are possible with these devices.
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Laser, A.P., Chu, K.M., Pulfrey, D.L., Maritan, C.M., & Tarr, N.G. (1990). An investigation of pnp polysilicon emitter transistors. Solid State Electronics, 33(7), 813–818. doi:10.1016/0038-1101(90)90060-R