Abstract
Polyhedral oligomeric silsesquioxane nanocomposites thin films on silicon surfaces were prepared by covalent layer-by-layer (LbL) assembly using octakis(glycidyldimethylsiloxy)octasilsesquioxane (OG-POSS) and 4,4(hexafluoroisopropylidene)dianiline (HID) as building blocks. The layer thickness increased linearly with the layer numbers. An ultra-low dielectric constant of approximately 1.57 was found with the LbL thin film. A novel approach to fabricate ultra low-k materials is demonstrated. Copyright © 2009 American Scientific Publishers All rights reserved.