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Gold is diffused into silicon pn junction diode why?
In order to shorten the switching time, diodes sometimes are doped with gold or other deep-level impu- rities to create more generation centers and to increase the carrier recombination rate.
When diode is heavily doped?
base
What is the difference between series and parallel diodes?
Connecting diodes in series:Connecting diodes in series will increase the forward voltage of the resultant diode.Connecting diodes in series will cause an open circuit until peak inverse voltage (smallest diode) is applied on total resultant.Connecting diodes in parallel:Connecting diodes in parallel will increase the current carrying capacity of the diode.Connecting diodes in parallel will not get you a resultant diode conduction in both sides.
Why emitter is heavily doped and base is lightly dopped working of p-n-p transistor?
Emitter is heavily doped because to provide charge carriers to Base & Collector region, Base and Collectors are lightly doped because to accept those charge carriers.
Can two diodes connected back-to-back produce a transistor?
No, two diodes cannot function as a transistor.The emitter and collector of a transistor have different and very specific doping profiles to optimize them for their functions, diodes don't.The base is a very very thin layer that both allows current carriers injected by the emitter to pass thru the base and be collected by the collector, and allows the transistor to operate at high frequencies (early junction transistors, a type called grown junction, had thick bases and could not function above audio frequencies), the diodes are physically separated with a long metal wire connecting them.
Why zener diodes are heavily doped?
so that its depletion layer is narrower... when a high reverse voltage is applied across the junction the electron hole generation takes place.....
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When was Václav Havel born?
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