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:
Sep. 23, 2025
Filed:
Mar. 21, 2021
Applicant:
Samsung Display Co., Ltd., Yongin-si, KR;
Inventors:
Jaebeen Lee, Seoul, KR;
Eun-Kyung Yeon, Suwon-si, KR;
Yi Joon Ahn, Seoul, KR;
Sunghoon Kim, Chungcheongnam-do, KR;
Assignee:
SAMSUNG DISPLAY CO., LTD., Yongin-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10K 59/126 (2023.01); H10K 71/00 (2023.01); H10K 77/10 (2023.01); H01L 25/18 (2023.01); H10K 59/12 (2023.01); H10K 59/131 (2023.01);
U.S. Cl.
CPC ...
H10K 59/126 (2023.02); H10K 71/00 (2023.02); H10K 77/10 (2023.02); H01L 25/18 (2013.01); H10K 59/1201 (2023.02); H10K 59/131 (2023.02);
Abstract
A method for manufacturing a display device includes forming a first hole that extends into a substrate, through a first wet etching process using a first etchant and forming a second hole that extends from the first hole further into the substrate, through a second wet etching process using a second etchant. The second etchant has a pH different from a pH of the first etchant.