wholesale China silver coating pcb leveling Supply at discount

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.

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. Since its establishment, the company has always adhered to the business tenet of "establishing business with science and technology, standardizing management, seeking efficiency, and keeping promises". We sincerely welcome customers from all over the world and from home and abroad to negotiate and order.

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silver coating pcb High-quality materials are used, combined with advanced technology for processing, so that all aspects such as quality and performance can reach national standards.

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silver coating pcb All are carefully selected high-quality materials, made of advanced production technology and exquisite manufacturing process, with reasonable structure, excellent performance, fine workmanship and high quality.

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Our silver coating pcb are all selected high-quality materials and made by fine processing, with excellent workmanship, excellent performance, beautiful appearance and high quality.

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silver coating pcb Produce in strict accordance with the standards stipulated by the company and the requirements of the market to ensure that it can pass the inspection of relevant state departments and meet the national quality standards. It is a high-quality product with guaranteed quality.

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The product consumes little energy when working. It can transform little physical or electrical energy into enormous mechanical energy to finish its tasks. It can be customized into other core shapes, such as rectangular, circular, etc

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