INTEGRATED CIRCUIT COMPRISING A SUBSTRATE AND A WIRING LAYER WITH A BUFFER LAYER BETWEEN THE SUBSTRATE AND THE WIRING LAYER

摘要

A thin-film ferroelectric capacitor (20) includes a bottom electrode structure (26) having an adhesion metal layer (36) and a noble metal portion (38). The electrode (26) is deposited over a thin-film buffer layer (24), which contains a layered superlattice material. The buffer layer is interposed between a substrate (22) and the bottom electrode (26). A process of manufacture includes deposition of a liquid precursor on the substrate (22) prior to formation of the bottom electrode (26).