Patent ID: 9718234
Date: 2017-08-01
CPC Classifications: B29C,B82Y,G03F

Claim:
1. An imprint apparatus that forms a pattern to an imprint material on a substrate by using a mold, the apparatus comprising: an optical system; a light-receiving element; a detection optical system that guides light from a mark formed on the substrate and a mark formed on the mold to the light-receiving element via the optical system, wherein an imaging plane of the substrate surface to be image-formed by the optical system is positioned between the optical system and the detection optical system; wherein the detection optical system is movable along the imaging plane; and an illumination system that emits illumination light for curing the imprint material; wherein the optical system includes: an optical element having a surface that transmits one of the illumination light and the light from the marks, and reflects the other; and a plate-shaped optical member that corrects aberration generated by the optical element, wherein an inclination direction of the plate-shaped optical member is different from an inclination direction of the surface of the optical element.