Patent ID: 7629583

Claim:
An apparatus for analyzing photoresist film, comprising: a light generator configured to generate light having various wavelengths and to irradiate the generated light onto a photoresist film, the light generator comprising: a laser generating unit configured to generate laser beams having a wavelength in an ultraviolet light range; an X-ray generating unit configured to generate X-ray beams; and a control unit configured to control a path of light generated by the laser generating unit and the X-ray generating unit so that the light is irradiated onto only the photoresist film within the chamber; a controller configured to select light having a wavelength which is responsive to the photoresist film; and an infrared spectroscope configured to analyze changes and properties of components in the photoresist film caused by exposing the photoresist film to the selected light; wherein the laser generating unit comprises: a plurality of gas storage parts storing a plurality of laser source gases; a laser beam generating part generating laser beams using the laser source gases and irradiating the laser beams onto the photoresist film; and a selecting part connected to the gas storage parts and laser beam generating part to provide the laser beam generating part with one of the laser source gases.