Measurement of CVD thin films thickness by sample weighing method

Abstract

Several type of films obtained by the Chemical Vapour Deposition technique, such as silicon dioxide, phosphosilicate glass, silicon oxynitride, silicon nitride and polysilicon, were investigated. A calibration technique for the sample weighing method comprising film density evaluation was developed. The sample weighing method was found to be a fast, precise and non-destructive method for thin film thickness evaluation.