Due to the increase of IC packaging density, it results in high concentration of interconnecting wire that the use of multilayer circuit board is necessary.
In the layout of printed circuit, unexpected design problems appear, such as noise, stray capacitance, crosstalk and so on. Therefore, PCB design must strive to minimize the length of signal lines and avoid parallel routes. Obviously, in single sided board and double sided board, these requirements cannot be answered satisfactorily because of the limited number of intersections. In the case of a large number of interconnection and cross-demand, circuit board will achieve satisfactory performance, it is necessary to expand the board layer to more than two layers. So there's multilayer circuit board.
Therefore, the original intention of making multilayer circuit board is to choose the appropriate wiring path for complex circuits. And it provides more freedom. The multilayer circuit board has at least three conductive layers; two of them are on the outer surface, while the remaining one is synthesized in the insulation board. Electrical connections between them are usually achieved by plating through holes on the cross-section of the circuit board. Multilayer printed circuit board and double sided board, they are plating through hole board commonly.( blank pcb)
Process of pcb manufacturing:
Our Company is UL,ISO9001,ROHS and GJB9001B certified.
Packing and Shipping:
1. How to Get a quotation?
For PCBs,pls send us the Gerber File.For PCBA,pls send us the Gerber file and BOM(Bill of Materials)
2. What is the MOQ?
No MOQ.1 pcs is ok.
3.What is the lead time?
For PCB orders,the lead time is 2 to 10 days.For PCBA orders,the lead time will be 15 to 30 days.
4.Will the boards be tested before shippment?
Yes,all PCBs will be tested by Flying Probe or E-test.For PCBA,we will have AOI,X-ray,and functional test
Email us to get a quote: email@example.com