Patent ID: 7202095

Claim:
A method for measuring suicide proportions, the method comprising the steps of: preparing a measurement substrate including: a substrate including a silicon layer at least at the surface thereof; a doped layer formed by implanting a dopant into the surface of the silicon layer; and a silicide layer formed in the surface of the doped layer by annealing at a given temperature and made of a plurality of types of silicides having different combining ratios of metal and silicon; irradiating the measurement substrate with X-rays; measuring the intensity of hard X-rays or ultra-soft X-rays emitted from the dopant in the doped layer by the irradiation with the X-rays, and the intensity of hard X-rays emitted from the metal in the silicide layer by the irradiation with the X-rays; calculating proportions of the plurality of types of silicides in the silicide layer, from either the intensities of the two types of the hard X-rays or the intensities of the ultra-soft X-rays and the hard X-rays emitted from the metal; and calculating the given temperature from either the intensities of the two types of the hard X-rays or the intensities of the ultra-soft X-rays and the hard X-rays emitted from the metal.