Electronics devices

Types of semiconductors 1)   Intrinsic(pure): A semiconductor which is extremely pure is called intrinsic semiconductor. In intrinsic semiconductor two most important semiconductors are Germanium and Silicon 2)   Extrinsic(impurity): Certain amount of desired impurity is added. The process of adding impurity to pure semiconductor is called Doping Two type of impurity 1)   P-Type semiconductor 2)   N-Type semiconductor P-Type semiconductor When a small amount of trivalent impurity is added to the pure semiconductor P-Type is formed N-Type semiconductor When a small amount of Pentavalent impurity added to the Pure semiconductor N-Type formed