X-ray projection exposure apparatus and a device manufacturing method

摘要

An exposure apparatus includes a chuck for holding an object and an optical system for directing light from a light source to the object held by the chuck. The optical system includes a multilayer film mirror which has a concave reflecting surface, wherein an area of contacting portions of the chuck is set so that the contact portions area of the chuck is at most 10% of an area of the object held by the chuck.