high quality peelable solder mask pcb gold plated Supply for wholesale

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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A-TECH enig pcb finish is made of a heat-conducting material, and the thermal conductivity is improved, which ultimately helps to improve the heat dissipation rate. Hanway can offer customized service according to customers' needs

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Tested by a third-party quality agency on the light source, A-TECH enig pcb finish is unlikely to cause blue light damage, thereby causing damage to the user's retina. More CNC are applied in the secondary processing to meet high accuracy demands

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The manufacturing process of A-TECH peelable solder mask pcb is complicated. For example, its semiconductors must undergo a rigorous cleaning process to remove dirt and dust. Hanway has gained utility model patent certificate for the innovation of products

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A-TECH enig pcb finish has ensured quality. In the manufacturing process, our Q&C team conducted a series of inspections on this product, including humidity testing and water spray testing.

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Characterized by user-friendliness, A-TECH peelable solder mask pcb has passed the national optical radiation quality safety inspection to provide users with a safe and healthy light environment. We make products according to customer's own drawing design

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The product works stably under extreme conditions. Its mechanical components, treated under heat and cold conditions, guarantees this mechanical property.

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