WonderfuI Printed Circuit Board

     On the insulating substrate, according to a predetermined design, made of printed wiring assemblies, printer, or combination of both conductive patterns, known as a printed circuit. On the insulating substrate, the electrical connection between the conductive patterns provided components, known as printed wiring. It does not include printed components. Printed circuit or printed circuit board called the finished printed circuit board, or PCB, also known as printing plates used in printing plates in accordance with rigid or flexible substrates can be divided into two categories: rigid printed scrubbing brush and a flexible printed board. this is also Rigid-flex pcb has occurred according to the conductor pattern layers can be divided into single-sided, double-sided and multilayer printed board and the entire outer surface of the conductor pattern surface of the substrate on the same plane printed board, called flat printing plate.
     After the electronic equipment used printing plates, printing plates because of similar consistency, thus avoiding the manual wiring errors, and can realize automatic insertion of electronic components or mount, automatic soldering, automatic testing to ensure the quality of the electronic equipment to improve labor productivity, reduce costs, and ease of maintenance. printing plates from development to single-sided, multi-layer and flexible, and still protect the respective trends. due to continuous high-precision, high density and high reliability direction, shrinking volume, reduce costs, making printing plates in the future development of the electronic device, remains strong vitality.
     FR-4 (flame resistant laminated sheet), is based on "fiberglass cloth" as the backbone of impregnation liquid flame resistance "epoxy" as a binding agent made the film, and then laminated plates made of various thickness. The so-called V-1 refers to 0.5 inches wide and 5 inches long, informal sample thickness of copper-free glass epoxy substrate of the order of 45 ° oblique after burning flame burning on a particular, and that is to remove the source of fire measured in seconds of its spread, let it put out before making a whole continued to burn. After ten consecutive test firing, the total number of seconds to less than 250 seconds were spread called V-1 grade FR-4, less than 50 seconds are known as V-0 grade FR-4.

Sophie Deng
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Wonderful PCB Limited
NO.32A,Building NO.1, XianDaiC hengHuaTing,ChuangYeRoad|NanShan District,ShenZhen City 518054|  China  T +86-755-86229518-806 | F  +86 755 2607 3529|  e  wonderful08@wonderfulpcb.com |
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Welcome to our trading shows:
1.Booth: L32,Expo Electronic 2013,Apr.10-12th in CROCUS EXPO,Moscow,Russia
2.Booth: 11J36, HK Global sources  Apr.12-15th, 2013 Asia World-Expo, Hong Kong
3.Booth: 9J35, HK Global sources Oct.12-15th,2013 Asia World-Expo, Hong Kong
4.Booth: 70206, CES  2014  Jan,8th-11th in Las Vegas, USA