Wonderful Printed Circuit Board

1) Single layer PCB:
   Single-sided printed circuit board is very normal and easy PCB board. The components is a side and the circuit line in the other side, that means there is only one circuit so also named 1layer PCB or single layer printed circuit board. There is having strict limited for single layer PCB design.Because only one layer circuit for the whole design so the Flexible pcb line can not crossover. Besides, the one layer PCB is also very easy to make mistake, such as the solder mask layer, some customers need only one layer solder make, some customers need double layers solder mask.
2) Double layer PCB:
Double layer PCB occupy about 60% of the PCB market.Double-sided printed circuit board as having two layer circuit line so called two layer PCB or two layer circuit board. There are two side circuit lines top and bottom, we also say two copper side. Needing a bridge or a guide line to make the top and bottom circuit connect, we called this via. Via holes in the PCB board which is plated hole. The via hole can connect the top circuit and bottom circuit, this solve the problem of circuit connection and make the double layer PCB twice bigger then single printed circuit board. This is much better then one layer PCB and avoid a lot of problem.
3) Multilayer PCB:
  Multilayer printed circuit board can increase the size of circuit line. The multilayer circuit board make up of one double layer to make inner layer and two single side printed circuit board to make out layers or two double sided circuit board to make inner layer and two one side PCB to make out layers. Through via holes and insulating material to make the circuit connect so that every layer can be a whole system. Besides the layers can not indicate the independent layers, some times also have blank layer which without circuit to control the thickness. The capability we can do is from 4layer up to 28layers.
Sophie Deng
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Wonderful PCB Limited
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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