The invention relates to a pressure gauge having a cylindrical housing to which a bushing is fixed, which penetrates the housing. The processors may comprise acceleration units for comparing acceleration signals with acceleration thresholds, and magnetic field units for comparing changes of magnetic field signals per time interval with rate thresholds. Methods for making a semiconductor device having a substantially reduced internal stress are also provided. Photoresist monomers of the present invention are represented by the following Chemical Formula 1: .