Impedance Control Fr4 PCB Board Multilayer PCB Board

Impedance Control Fr4 PCB Board Multilayer PCB Board

The multilayer board is removed after hot pressing, cut or milled off the edges, and then laid flat in the oven for 150 degrees Celsius for 4 hours, so that the stress in the plate is gradually released, and the resin is cured completely. This step must not be omitted.
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Product Details

The high quality of our pcb printing and assembly, Electronic PCB Board Multilayer PCB, circuit card assembly results from constant research on quality materials and manufacturing processes. We have humanized management and efficient production line. We have an excellent reputation in the industry with ultra-short supply cycle, reasonable product prices, and have become a reliable long-term partner for many manufacturers.

PCB Knowledge:

The meridional and latitudinal shrinkage of semi-cured laminates after lamination is different. The meridional and zonal shrinkage must be distinguished when laying-off and lamination. Otherwise, it is easy to warp the finished PCB after lamination, and the pressure baking board is difficult to correct. Many of the causes of multilayer warpage are due to the misunderstanding of meridional and latitudinal.

The multilayer board is removed after hot and cold pressing, cut or milled off the edges, and then laid flat in the oven for 150 degrees Celsius for 4 hours, so that the stress in the plate is gradually released, and the resin is cured completely. This step must not be omitted.

Special clamping rollers should be made when 0.4~0.6mm ultra-thin multilayer board is used for plate plating and graphic electroplating. It is to straighten out all the boards on the roll. The board after plating will not deform. Without this measure, the thin plate would bend after electroplating 20 or 30 microns of copper, and it would be difficult to remedy.( printed wiring board)


Process of pcb manufacturing:


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Our Factory:

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Certifications:

Our Company is UL,ISO9001,ROHS and GJB9001B certified.

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Packing and Shipping:

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FAQ:

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: admin@brightcircuits.com

 


In an effort to finest meet up with client's requirements, all of our operations are strictly performed in line with our motto 'High quality, Competitive Rate, Fast Service' for Impedance Control Fr4 PCB Board Multilayer PCB Board. Our products with innovative functions can not only meet customer needs, but are also the source of creating a new corporate culture. Based on the concept of 'Customer First', our company is committed to making unremitting efforts to promote the common development.
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