Give a brief explanation of solid state semiconductor electronics.

Explanation

Some solid state semiconductor and their junctions offer the possibility of controlling the number and the direction of flow of charge carriers through them.
Simple excitations like light, heat or small applied voltage can change the number of mobile charges in a semiconductor.
The supply and flow of charge carriers in the semiconductor devices are within the solid itself.
The devices of solid state electronics are as follows:
(1) Junction diode : It has two electrodes.
(2) Transistor : It has three electrodes.
(3) Integrated circuit : It contains numerous electrodes.