ABSTRACT
The S-shaped curve was observed by yilbas and Bin Mansoor 2013 In this study. an alternative method characteristics of phonon transport in silicon thin film is to predia the s-shaped curve for logistic predictionmethod This lytical prediction method was introduced by presented by using an analytical Bejan and Lorente in 2011 and 2012. The Bejan and Lorente method is based on two-mechanism now of fast -invasion" by convection and slaw consolidation by diffusion.