<title>Study on the stress of silicon nitride thin films prepared by PECVD</title>

The residual stresses on silicon nitride thin films that were fabricated by PECVD were studied in this paper. A wafer-curvature measurement method was used to determine the stresses of silicon nitride films. The structure of fixed-fixed beam was also developed to compare with the stress measurement. The contributions of processing parameters on the stress of silicon nitride films were analyzed.