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:
Nov. 04, 2025
Filed:
May. 26, 2022
Disco Corporation, Tokyo, JP;
DISCO CORPORATION, Tokyo, JP;
Abstract
A method of processing a wafer includes preparing a ring-shaped frame having an opening for accommodating a wafer therein, preparing a wafer having a protrusive ring-shaped stiffener on a reverse side thereof in an outer circumferential excess region thereof, producing a frame unit by affixing a tape to the frame and the reverse side of the wafer, capturing an image of the ring-shaped stiffener and setting a center of an inner circumferential circle of the ring-shaped stiffener on the basis of the captured image, rotating the frame unit around the center of the inner circumferential circle of the ring-shaped stiffener to cut the wafer along the inner circumferential circle of the ring-shaped stiffener, and removing the ring-shaped stiffener severed from the frame unit.