Mechanical properties of surface modified silica low-k thin films
A solgel deposited low-k thin film was surface modified by using wet chemical treatment. Change in chemical structure was analyzed by using FTIR spectroscopy. The hydrophobicity of surface modified films was revealed by using water contact angle. Hardness and modulus of low-k films was determined by Nanoindentation technique. The film surface modified at 20% TMCS, observed to have lowest dielectric constant of 2.58.
solgel hydrophobic contact angle surface modification nano-indentation