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.:

US 7371622 B1

PDF
Full Text
Expired
Date of Patent:
May. 13, 2008

Filed:

Feb. 06, 2004
Applicants:

Hong-sick Park, Yongin-si, KR;

Hong-je Cho, Suwon-si, KR;

Sung-chul Kang, Yongin-si, KR;

Pong-ok Park, Seoul, KR;

An-na Park, Busan-si, KR;

Inventors:

Hong-Sick Park, Yongin-si, KR;

Hong-Je Cho, Suwon-si, KR;

Sung-Chul Kang, Yongin-si, KR;

Pong-Ok Park, Seoul, KR;

An-Na Park, Busan-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Gate lines including a lower Al—Nd layer and an upper MoW layer, data lines including a MoW layer, and pixel electrodes including an IZO layer are patterned using a single etchant. The etchant contains a phosphoric acid of about 50-60%, a nitric acid of about 6-10%, an acetic acid of about 15-25%, a stabilizer of about 2-5% stabilizer, and deionized water. The stabilizer includes oxy-hydride inorganic acid represented by M(OH)L, where M includes at least one of Zn, Sn, Cr, Al, Ba, Fe, Ti, Si and B, L includes at least one of HO, NH, CN and NHR (where R is alkyl group), X is 2 or 3, and Y is 0, 1, 2 or 3.


Find Patent Forward Citations

Park, Hong-Sick. (2008). Etchant for signal wire and method of manufacturing thin film transistor array panel using etchant (U.S. Patent No. 7371622). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7371622

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