Shenzhen Professional Manufacturer with ODM/OEM Service SMT/DIP PCB Assembly

Shenzhen Professional Manufacturer with ODM/OEM Service SMT/DIP PCB Assembly

The principle of reflow welding is analyzed from the temperature characteristic curve of SMT. First, when PCB enters the preheating temperature range of 140 ℃ ~ 160 ℃, the solvent in the solder paste evaporates. At the same time, the flux wetting pad, component solder end and pin, paste softens, collapses, covers the pad, separates the pad and the component pin from oxygen, and it makes the surface mount element fully preheating.
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Product Details

We always adhere to the core concept of 'integrity, pragmatism, and excellence', stick to the business policy of 'quality first, service first', and constantly improve innovation capabilities, striving to produce Prototype Pcb Fabrication, Fingertip Pulse Oximeter, smt pcb that satisfy customers! We carry forward the spirit of unity, pragmatism, development and progress and strive to create a corporate image of integrity, vitality and efficiency. We are convinced that with joint endeavours, the small business between us will bring us mutual benefits. Customer satisfaction is our satisfaction, customer standard is our standard and we adhere to a down-to-earth service for customers.

PCBA Knowledge:

The principle of reflow welding is analyzed from the temperature characteristic curve of SMT. First, the solvents and gases in solder paste evaporate when PCB enters the preheating temperature range of 140 ~160 C. At the same time, the flux in the solder paste wets the pad, components'soldering ends and pins, solder paste softens and collapses, covering the pad, isolating the pad and components' pins from oxygen, and fully preheating the surface-mounted components.

Then, when entering the welding zone, the temperature rises rapidly at the rate of 2-3℃ per second in international standard, which makes the solder paste melt. The liquid solder is wetted, diffused, diffused and refluxed on the solder pad of PCB and the solder end and pin of components to form metal compounds on the solder interface,to form solder joint, and finally PCB enters the cooling zone to solidify the solder joint.

Welcome to try our SMT PCB Assembly from Linke Electronics,which is an expert in this field for more than 14 years.

 

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

 


We can easily state with absolute certainty that for such good quality at such charges we are the lowest around for Shenzhen Professional Manufacturer with ODM/OEM Service SMT/DIP PCB Assembly. Our products are of high quality, high stability, and highly integrated with customer needs. We always apply the 'client first' principle.
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