Patent ID: 6411906
Filing Date: 2002-06-25
Classification: G01N

Abstract:
A polycrystalline semiconductor film inspecting method for measuring grain sizes of semiconductor grains contained in a polycrystalline semiconductor film, the method comprising:a first calculation step of calculating dependencies on wavelength of a refractive index and a damping coefficient of a plurality of standard samples including at least a polycrystalline semiconductor film; a second calculation step of calculating dependencies on wavelength of a refractive index and a damping coefficient, and a thickness of an estimated sample consisting of a polycrystalline semiconductor film as an object to be inspected; a comparison step of comparing said dependencies on wavelength of the refractive index and the damping coefficient of said estimated samples with those of said standard samples, to derive the compared results as indexes; and a correlation step of deriving a correlation between said thickness of said estimated example and said indexes derived at said comparison step.