This results in a smaller area being analyzed, while the size of the CRT remains the same. This is the basic principle of magnification. The S-4700 FE-SEM has no CRT viewing screen and uses a flat ...

Since the FE-SEM is in effect an electrical circuit, the specimen must be conductive. In the tungsten source SEM, any nonconductive specimen is coated with a very thin layer of conductive material in ...