Physics of Semiconductor Devices

Return to
problem list

      

Minority carrier concentrations in a bipolar transistor

A npn bipolar transistor is biased in the cut-off mode. The emitter is more heavily doped than the collector. Select the minority charge distribution that corresponds to this mode.

(1)      

(2)      

(3)      

(4)      

(5)      

(6)      

(7)      

(8)      

1       2       3       4       5       6       7       8      

On an exam, this question would not be multiple choice. You would be asked to draw the minority charge distribution.