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:
Feb. 19, 2013
Filed:
Dec. 21, 2006
Wen-chin Lee, Taoyuan, TW;
Cheng-hsien Lin, Taoyuan, TW;
Wen-Chin Lee, Taoyuan, TW;
Cheng-Hsien Lin, Taoyuan, TW;
Zhen Ding Technology Co., Ltd., Tayuan, Taoyuan, TW;
Abstract
The present invention relates to an apparatus for spraying an etchant and a method for manufacturing a printed circuit board. In one exemplary embodiment the apparatus includes a manifold, a plurality of feed pipes in fluid communication with the manifold, each of the feed pipes having a plurality of spray nozzles mounted thereon, the feed pipes cooperatively constitute a spray region, and a pressure-boosting device configured for increasing a spray pressure of the spray nozzles which are located at a central area of the spray region. The apparatus can overcome 'the puddle effect' on an upper surface of the printed circuit board.