Investigation of surface roughness and hillock formation on platinized substrates used for Pt/PZT/Pt capacitor fabrication

Abstract
Hillock formation on Pt bottom electrode surfaces has been investigated for 〈111〉 Si and sapphire substrates. This paper correlates the electrical performance of Pt/PZT/Pt structured capacitors with the observed surface roughness and/or hillock presence on the Pt bottom electrode.