Transistor Manufacturing Techniques
Transistor DefinitionA transistor is a semiconductor device used to amplify or switch electronic signals and electrical power.Diffused TechniqueThis method creates planar transistors on a nearly flat wafer. An N-type wafer is heated in a furnace with P-type gas impurities, causing the P-type region (base) to form on the wafer. A mask with holes is used, and the wafer is heated again with N-type impurities. This creates the N-type region (emitter) on top of the P-type layer.At last, a thin layer