Patent ID: 11904522
Assignee: CANON KABUSHIKI KAISHA
Field: Other special machines (Mechanical engineering)
Classification: CPC B  G  H | IPC B

Claim 7:
8. An imprint apparatus that forms a cured product of an imprint material on a substrate by using a mold, the imprint apparatus comprising:
a mold holder that holds the mold;
an optical system that irradiates the imprint material on the substrate with irradiation light; and
a control unit composed of a computer configured to execute a program that causes the optical system to use a spatial light modulator to perform:
entire irradiation, in which an entirety of a shot region of the substrate is irradiated, and
outer peripheral irradiation, in which an outer peripheral region of the shot region is selectively irradiated,

wherein performing the outer peripheral irradiation by executing the program includes providing a light intensity distribution in which a light intensity increases from a center of the shot region toward an outer periphery of the shot region when the mold is held by the mold holder, and
wherein performing the outer peripheral irradiation by executing the program includes starting the outer peripheral irradiation so that a boundary surface of the imprint material between the mold and the substrate that moves from the center of the shot region toward a side surface of the shot region is irradiated with the irradiation light having the light intensity smaller than a peak of the light intensity distribution, while the mold and the imprint material on the substrate are in contact with each other.