The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 2026
Filed:
Sep. 28, 2023
Disco Corporation, Ota-ku, JP;
Hiroshi Morikazu, Tokyo, JP;
Yuki Suto, Tokyo, JP;
Tasuku Koyanagi, Tokyo, JP;
Masato Terajima, Tokyo, JP;
Junya Mimura, Tokyo, JP;
DISCO CORPORATION, Tokyo, JP;
Abstract
A method of processing a wafer includes a composite substrate forming step of joining a face side of a wafer and a surface of a support substrate to each other with a joint member interposed therebetween, a grinding step of grinding a reverse side of the wafer of the composite substrate to thin down the wafer to a finished thickness, a transfer member affixing step of affixing a transfer member to the reverse side of the wafer, a joint member breaking step of breaking the joint member by applying a laser beam having a wavelength transmittable through the support substrate and absorbable by the joint member to the composite substrate from another surface side of the support substrate, and a transferring step of peeling off the support substrate from the wafer and transferring the wafer to the transfer member.