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. 13, 2010
Filed:
Jul. 21, 2006
Chia-shuo Hsu, Tayuan, TW;
Chia-Shuo Hsu, Tayuan, TW;
Foxconn Advanced Technology Inc., Tayuan, Taoyuan, TW;
Abstract
An exemplary film hole forming apparatus () includes a chemical etching system () and a driving system (). The driving system includes a transmission belt, which passes through the chemical etching system. A material of the transmission belt is polytetrafluoroethylene, polytetrafluoroethylene-containing material, polyvinylidene fluoride, metal, or metal-sandwiched composite. An exemplary method for forming film holes includes the following steps: providing a flexible printed circuit board () to be etched, with copper holes () pre-formed thereat and the copper holes exposing a base film () at corresponding positions; and transporting the flexible printed circuit board into a chemical etching system by a transmission belt to form film holes in the base film.