Printed Wiring Board in China

Printed Wiring Board in China

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

We believe in long term and trusted relationship for Smt Pcb Assembly, Electronic Board Assembly, Pcb Soldering. Our responsibility is to design and produce highly stable and easy-to-use products to meet the needs of different customers. We take 'customer satisfaction is our honor' as our eternal quality policy, take 'integrity, responsibility,' as our constant pursuit and goal and are willing to join hands with the vast number of friends to create a better tomorrow.

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

 


To fulfill the customers' over-expected satisfaction, we have now our strong crew to provide our greatest general assistance which incorporates promoting, gross sales, planning, creation, top quality controlling, packing, warehousing and logistics for Printed Wiring Board in China. We adhere to the concept of 'innovation, efficiency, satisfaction', while opening up a broader market and serving customers, all of our staff will continue to be down-to-earth and strive to provide customers with better products and considerate services. They place order with us and export products to other countries.
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