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A-TECH China pcb solder mask manufacturers for wholesale

A-TECH China pcb solder mask manufacturers for wholesale

Thickness
1-5U
Shelf Life
12 Months
Solderability
Good
RoHS Compliant
Yes
Additional Cost
Yes
Supply Capacity
20000 ㎡/Month
Certifications
UL, ISO9001, TS16949
Payment Terms
T/T, Paypal, WU etc.
Shipment Terms
EXW, FOB, DDU etc.
Test Way
100% E-Test
Standard
IPC CLASS 2 / CLASS 3
Price
Get Latest Price
Get the latest price
Quantity Needed:
Pieces
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Immersion gold or ENIG, the full name is Electroless nickel / Immersion gold, It’s a RoHS compliant finish that provides a very flat surface and a very reliable solder joint.

ENIG finish is applied through the deposition of an initial layer of Nickel onto the copper surface, followed by a thin protective layer of gold, Nickel characteristics of hardness, wear resistance, solderability and uniformity of deposition makes this an excellent surface finish. The thin layer of gold preserves the solderability of the finish by preventing oxidization of the highly active nickel surface.

Basically the gold thickness of ENIG is 1-5U” and the nickel thickness is 120-240U”, the shelf life of immersion gold PCB can reach to 12 months.



The advantages of immersion gold finish

● Excellent flatness
● RoHS compliant
● Long shelf life
● Suitable for fine pitch, BGA or smaller components
● Wire bondable
● Good for SMD and press fit



The disadvantages of immersion gold finish

●Expensive finish
●Black pad concerns on BGA



A-TECH own immersion gold line in house, it’s the most used finish in our plant nowadays especially for multilayer PCBs with BGA or fine pitch. We offers ENIG finish with competitive cost and high level of quality for both of thickness and appearance.




pcb solder mask is simple in design and convenient in construction. Its design will cater to the age of recipients
For its material, we used enig pcb finish that was typical for pcb solder mask because it is enig pcb finish. No crack will be found on it
enig pcb finish is supported to operate normally thanks to the installation of pcb solder mask. It can be decorated with ribbons which come in a variety of shapes
The selection of enig pcb finish depends on the quality of pcb solder mask to a large extent. It has several alternative types of material: crystal, metal, acrylic, resin, etc
enig pcb finish has achieved breakthroughs in technology and style varieties. It is of proper weight, showing the real gravity of an accomplishment
This product is not subject to loss of power due to frictional resistance. In the design phase, careful attention has been given to the matter of lubrication of all surfaces which moves in contact with others. It serves BMW, Mercedes-Benz, McDonald's, Alibaba and other globally renowned companies
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