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

Lecture 25 : Sputtering Processes for Thin Film Deposition

Sputtering Alloy Targets

Composition of alloy in film is approximately the same as alloy in target (unlike evaporation)

slow diffusion mixing in solids (sputtering)

• target reaches steady state
• surface composition balances sputter yield