Patent ID: 8047828

Claim:
An imprint apparatus for imprinting a pattern provided to a mold onto a substrate or a member on the substrate, the imprint apparatus comprising: a light source for irradiating a surface of the mold disposed opposite to the substrate and a surface of the substrate with light; a spectroscope; an optical system for guiding the light from the light source to the surface of the mold and the surface of the substrate and guiding light reflected from the surface of the mold and the surface of the substrate to the spectroscope, which disperses the reflected light guided by the optical system into a spectrum; an image sensor for observing the light dispersed by the spectroscope; an analyzer for analyzing a distance between the surface of the mold and the surface of the substrate based on information obtained by the image sensor, wherein the analyzer is adapted to analyze a first distance as a distance between the surface of the mold and a surface formed at a position away from the surface of the mold based on information obtained from the light emitted from the light source and reflected by the surface of the mold and the surface formed at the position away from the surface of the mold, wherein the analyzer is adapted to analyze a second distance as a distance between the surface formed at the position away from the surface of the mold and the surface of the substrate based on information obtained from the light emitted from the light source and reflected by the surface formed at the position away from the surface of the mold and the surface of the substrate, and wherein the analyzer is adapted to calculate the distance between the surface of the mold and the surface of the substrate by subtracting the first distance from the second distance.