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A-TECH highly-rated solder mask for business at discount

A-TECH highly-rated solder mask for business at discount

Shelf Life
12 Months
RoHS Compliant
Additional Cost
Supply Capacity
20000 ㎡/Month
UL, ISO9001, TS16949
Payment Terms
T/T, Paypal, WU etc.
Shipment Terms
EXW, FOB, DDU etc.
Test Way
100% E-Test
Get Latest Price
Get the latest price
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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.

solder mask exceed other similar products with its solder mask design. With high start-up performance, it enables the engine to start even in extreme weather conditions
Thanks to the design of solder mask, our products are unequal in performance. It has a good recovery ability in deep discharge
A-TECH CIRCUITS Co., Ltd. always focuses on the industry trends to make solder mask keep up with the trend. It doesn't need to add water in use
solder mask from A-TECH CIRCUITS Co., Ltd. is really exquisite and of solder mask. It features low internal resistance and low power consumption
A-TECH CIRCUITS Co., Ltd. puts great cost and time in the design of solder mask. Its aluminum foil plate is designed to be oxidation resistant
Based on the strict control of the production process and the strict control of the production cost, the solder mask we produce not only has excellent quality, but also has an affordable price, which is more cost-effective than other similar products.
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