Part 4 of 6 in the series: From Vacuum Tubes to Integrated Circuits (IC)A bipolar junction transistor consists of three regions of doped semiconductors. [...]
Part 3 of 6 in the series: From Vacuum Tubes to Integrated Circuits (IC)When p-type (+)and n-type (-) materials are placed in contact with each other, the junction behaves very differently than either type of material alone. [...]