SMT/DIP PCB Assembly Factory in China

SMT/DIP PCB Assembly Factory in China

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

Committed to becoming one of the most competitive suppliers of Pcb Board Assembly, small printed circuit board, Electronic Manufacturings in the world is our unremitting pursuit since the establishment of our company! We hope that in an innovative corporate culture, each employee's ability can be improved within the company. Our business puts emphasis over the administration, the introduction of talented staff, plus the construction of employees building, striving hard to boost the standard and liability consciousness of staff members. We are constantly improving ourselves, improving product quality and gradually climbing to a new level in the market. We will continue to publicize this valuable enterprise personality. We are doing our best to create and promote the company's brand, open up the market and build up our image.

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:



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


We insist on taking the road of technological innovation, introducing a large number of high-quality talents to develop new SMT/DIP PCB Assembly Factory in China. We have the advantages of price and technology, and we can solve customers' concerns about design, pattern selection and after-sales service from the source. Ideal efforts will probably be produced to deliver you the most beneficial service and solutions.
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