Tuesday, February 7, 2012

Basic structure of a transistor.


A transistor has three regions

The emitter : This is heavily doped. Its function is to emit electrons or holes into the transistor.

The base: It is in between the collector and emitter. It is lightly doped. It passes most of the charge carriers from the emitter to the collector.

The collector: It collects the charge carriers from the emitter. It doping is less than emitter but higher than that of base.




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