Module 4 : Chemical and non–chemical approach to materials synthesis - part 2

Lecture 25 : Sputtering Processes for Thin Film Deposition

RF Sputtering

DC sputtering - what about dielectrics?

• In DC systems, positive charge builds up on the cathode (target) need 1012 volts to sputter insulators !!

avoid charge build up by alternating potential

RF sputtering