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:
Jul. 08, 2008
Filed:
Mar. 23, 2007
Shiun-chang Jan, Hsinchu, TW;
Yi LU, Hsinchu, TW;
Yi-ming Shan, Hsinchu, TW;
Yi-chun Chen, Hsinchu, TW;
Shiun-Chang Jan, Hsinchu, TW;
Yi Lu, Hsinchu, TW;
Yi-Ming Shan, Hsinchu, TW;
Yi-Chun Chen, Hsinchu, TW;
Au Optronics Corporation, Hsinshu, TW;
Abstract
An etching process of a metal layer of a display panel is provided. First, a substrate with at least one display panel region, a testing device region, and a non-device region is provided. Then, a metal layer is formed over the substrate to cover the display panel region, the testing device region, and the non-device region. Next, a mask is formed on the metal layer to expose a portion of the metal layer. The area of the metal layer exposed by the mask substantially occupies 70%˜88% of the total area of the metal layer. Thereafter, a wet etching process is performed to remove the metal layer exposed by the mask.