A one-dimensional viscoelastic model for lateral relaxation in thin films

This paper is dedicated to a one-dimensional model intended to describe the lateral relaxation in thin film bonded on a wafer via a compliant (viscous) glass. We analyze the partition of energy between the film and the template substrate and we show that if relaxation takes place, it will be initiated at the lateral boundary of the interface (template substrate)/(viscous glass). We extend the one-dimensional model to take into account the growth rate and show that the lateral relaxation is favored by a slow growth rate.