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.

Date of Patent:
Feb. 04, 2025

Filed:

Oct. 14, 2021
Applicant:

Samsung Display Co., Ltd., Yongin-Si, KR;

Inventors:

Wonje Cho, Osan-si, KR;

Duckjung Lee, Hwaseong-si, KR;

Assignee:

SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/67 (2006.01); H05K 3/00 (2006.01); H05K 3/06 (2006.01);
U.S. Cl.
CPC ...
H01L 21/6708 (2013.01); H05K 3/0088 (2013.01); H05K 3/068 (2013.01); H05K 2203/075 (2013.01); H05K 2203/1147 (2013.01);
Abstract

An etching device includes a nozzle unit including at least one nozzle including an etching solution injection hole, an etching solution collection hole, and a sealing part. The etching solution injection hole is configured to provide an etching solution to an etching object, the etching solution collection hole is configured to collect the etching solution, and the sealing part surrounds the etching solution injection hole and the etching solution collection hole to prevent the etching solution from leakage.


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Cho, Wonje. (2025). Etching device and etching method using the same (U.S. Patent No. 12217978). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12217978

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