What is a #Diode? A diode is a simple electrical device that allows the flow of current only in one direction. So it can be said to act somewhat like a switch. A specific arrangement of diodes can convert AC to pulsating DC, hence it is sometimes also called as a rectifier. It is derived from di-ode which means a device having two electrodes. the arrowhead points in the direction of conventional current flow. The p-n junction is a basic building block in any semiconductor device. It is formed by joining a p type (intrinsic semiconductor doped with a trivalent impurity) and n type semiconductor (intrinsic semiconductor doped with a pentavalent impurity) together with a special fabrication technique such that a p-n junction is formed. Hence it is a device with two elements, the p-type forms anode and the n-type forms the cathode. These terminals are brought out to make the external connections.
Posted on: Fri, 09 Jan 2015 07:20:03 +0000
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