Patent ID: 11869813
Assignee: CANON KABUSHIKI KAISHA
Field: Semiconductors (Electrical engineering)
Classification: CPC G  H | IPC H

Claim 9:
10. A method of manufacturing an article, comprising:
applying a formable material on a substrate;
moving planarization head close to a proximity of contact surfaces between contact surfaces of a superstrate and a stack of a superstrate and the substrate;
resetting force offsets before contact between the superstrate and the substrate;
identifying a contact force mode indicating a relationship between a total contact force for planarization of a formable material between the superstrate and the substrate and a force component of the total contact force along each of a plurality peripheral axes; and
determining a set point force required for performing the planarization;
calculating each force component based on the contact force model; and
performing planarization by applying each force component along a corresponding axis of the plurality of axes;
wherein the contact force model is identified based on a parallel condition between two contacting surfaces of:
a superstrate chuck for retaining the superstrate; and
a stack of the superstrate and the substrate.