Shockley diode equation (in real transistors)

Description

In electronics, a diode is a two-terminal electronic component with asymmetric conductance; it has low (ideally zero) resistance to current in one direction, and high (ideally infinite) resistance in the other. A semiconductor diode, the most common type today, is a crystalline piece of semiconductor material with a p–n junction connected to two electrical terminals. The Shockley diode equation or the diode law gives the I–V characteristic of a diode in real transistors, in either forward or reverse bias (or no bias).

Related formulas

Variables

IThe diode current (A)
ISThe reverse bias saturation current (A)
ee
VDThe voltage across the diode (V)
nemission coefficien (depending on the fabrication process and semiconductor material) (dimensionless)
VTThe thermal voltage (V)