X-ray photoelectron spectroscopy study of the interface between aluminum and spin-coated polyamic acid

Abstract

The interfacial properties between pyromellitic dianhydride-oxydianiline (PMDA-ODA) and aluminum substrate have been studied by X-ray photoelectron spectroscopy. The spin-coating method was used to obtain ultra-thin films required to characterize the interface between the substrates and organic films. Adhesion between the substrate and the polyimide was accomplished by baking for about 5 h at 240°C without the use of an adhesion promoter.