Patent ID: 8023105

Claim:
A projection exposure device for transferring patterns formed on a mask to a surface of a film-shaped tape on an upright exposure stage by projecting the patterns onto the surface of the tape using light, said projection exposure device comprising: the exposure stage on which the tape is to be fixed, the exposure stage comprising: one or more central suction holes for applying first sucking power to a center region of the tape to which the patterns are to be formed, said central suction holes applied in such a way that the center region of the tape is drawn to the exposure stage, the center region of the tape extending in a feeding direction of the tape; and one or more side suction holes for applying second sucking power to each of side regions of the tape in such a way that the side regions of the tape are drawn to the exposure stage, the second sucking power being greater than the first sucking power, the side regions of the tape extending in the feeding direction of the tape; wherein the tape has at least one pair of perforation lines each of which is made up of a plurality of holes arranged in the feeding direction, and the center region spans between the perforation lines and each of the side regions spans between one of the perforation lines and a nearer one of side edges of the tape; a transfer mechanism for feeding the tape to the exposure stage vertically, and a projection optical mechanism for irradiating the surface of the tape with the light, the projection optical mechanism including Dyson optics located opposite the transfer mechanism across the exposure stage; the Dyson optics having an optical axis being substantially perpendicular to the exposure stage; the Dyson optics comprising: an entrance side convex lens and an exit side convex lens, both centers of which are arranged on the optical axis; a prism reflector located between the entrance side convex lens and the exit side convex lens; a reflection side convex lens and a concave reflecting mirror that are both arranged above the prism reflector; and a lens body.