Bilaterally conducting zener diode and circuit therefor

Details Bilaterally conducting zener diode and circuit therefor Bilaterally conducting zener diode and circuit therefor

1974-07-17

1976-01-13

Heyman, John S.

Electricity: single generator systems

Generator control

With excitation winding and/or circuit control

357 20, 357 36, 357 39, 357 86, 322 28T, H01L 2990, H01L 2906, H01L 29747, H02H 706

Patent

active

039328791

ABSTRACT:
A bilateral zener diode is described having improved terminal characteristics including a low noise factor, a predictable breakdown voltage level in the reverse breakdown mode within plus or minus 3 percent, and providing a sharp reference voltage which is substantially independent of diode current. This bilateral conducting diode is achieved by utilizing a collector ring diffusion of the same conductivity type as the anode diffusion, but spaced from both the anode diffusion and the cathode diffusion. In the forward bias conduction mode, the flow of current from the anode to the cathode is collected by the collector ring and returned to the cathode providing a forward transfer efficiency which is typically 90 percent.

REFERENCES:
patent: 3462656 (1969-08-01), Gerstner et al.
patent: 3633052 (1972-01-01), Hanna

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