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. 28, 2015
Filed:
Jul. 12, 2011
Hui Zeng, Shenzhen, CN;
Hui Zeng, Shenzhen, CN;
FuKui Precision Component (Shenzhen) Co., Ltd., Shenzhen, CN;
Zhen Ding Technology Co., Ltd., Tayuan, Taoyuan, TW;
Abstract
In a method for manufacturing multilayer PCBs having n circuit layers, a flexible substrate strip is provided. The strip comprises a number of PCB units, each comprising n segmental portions. The strip is treated in a reel to reel process to form traces in n−2 segmental portions of each of the PCB units, the other two segmental portions are left untreated without traces. Then the strip is cut to obtain a number of separated PCB units. The PCB unit is folded in such a manner that the n−2 segmental portions having traces are arranged between the other two segmental portions without traces. The folded PCB unit is laminated to form a multilayer substrate and traces are formed in the two segmental portions.