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:
Feb. 21, 2023
Filed:
Nov. 18, 2021
Disco Corporation, Tokyo, JP;
Masaru Nakamura, Tokyo, JP;
DISCO CORPORATION, Tokyo, JP;
Abstract
A holding table manufacturing method includes forming a plurality of first grooves in a front surface of a plate-shaped body, forming a plurality of second grooves in a back surface of the plate-shaped body, laying, on one another, a plurality of the plate-shaped bodies formed respectively with a plurality of the first grooves and a plurality of the second grooves and uniting the plate-shaped bodies together to form a suction plate, and accommodating the suction plate in an accommodating recess of a frame body to form a holding table. The first grooves and the second grooves do not reach side surfaces of the plate-shaped body, the first grooves and the second grooves communicate with each other, and the thickness of the suction plate is larger than the depth of the accommodating recess.