Patent ID: 9121829
Filing Date: 2015-09-01
Classification: C30B,G01N,H01L

Abstract:
1. A crystallinity evaluation method of evaluating crystallinity of a semiconductor film formed above a substrate, the crystallinity evaluation method comprising: obtaining a peak waveform of a Raman band in a Raman spectrum of the semiconductor film using Raman spectrometry, the Raman band corresponding to a phonon mode unique to the semiconductor film, the peak waveform being a waveform of a wavelength range having a peak of the Raman band; generating a first waveform by fitting the obtained peak waveform of the Raman band by using a Gauss function, the first waveform being a waveform fit by the Gauss function; extracting a peak value of the first waveform; generating a second waveform by fitting the obtained peak waveform of the Raman band by using a Lorenz function based on the extracted peak value, the second waveform being a waveform fit by the Lorenz function; obtaining at least one of a peak value, a full-width at half maximum, and a wavelength indicating the peak value regarding the generated second waveform; and evaluating crystallinity of the semiconductor film based on the at least one of the peak value, the full-width at half maximum, and the wavelength indicating the peak value.