公开(公告)号：US20240067555A1

公开(公告)日：2024-02-29

申请号：US18365093

申请日：2023-08-03

Applicant: UTI INC.

Inventor： Jae Young HWANG ,  Hak Chul KIM ,  Hyunho KIM ,  Yong Bae NA

IPC: C03B33/02 ,  B23K26/0622 ,  B23K26/364 ,  B23K26/402 ,  C03B33/04 ,  C03C15/00

CPC classification number: C03B33/0222 ,  B23K26/0624 ,  B23K26/364 ,  B23K26/402 ,  C03B33/04 ,  C03C15/00 ,  B23K2103/52

Abstract: Proposed are a method of manufacturing a sapphire cover window, which includes: preparing a sapphire wafer; forming a cell edge processing portion on the sapphire wafer with a laser beam; forming an etched portion on the sapphire wafer by selectively performing wet etching on the cell edge processing portion; and separating a cell from the sapphire wafer by compressing the sapphire wafer on which the etched portion are formed, and a sapphire cover window manufactured thereby.