highly-rated immersion gold pcb mask free delivery 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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Before production, the materials and components of A-TECH carbon ink pcb have to go through inspections. They must be verified by the QC team to ensure its maximum electrical safety. The product provides the right amount of glare-free light to guide users in the dark

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A-TECH immersion gold pcb is of guaranteed quality. It is tested for proper color, abrasion resistance, waterproofness, weight and hand properties in the manufacturing process. The soft light of the product gives a warm feeling in the dark

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A-TECH carbon ink pcb has to be tested before being assembled into the final product. Its every part such as hydraulic system, engine, and other moving parts will be scrutinized and debugged by mechanical engineering technicians. With a light diffuser and guiding plate, it has no light flickers and harsh glares

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A-TECH immersion gold pcb has to undergo a conformity assessment. It has been tested for the durability and robustness of panels in accordance with BS 5234: Part 2. The soft light of the product gives a warm feeling in the dark

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A-TECH immersion gold pcb has been delivered to a third-party testing organization. Through various kinds of tests, it has obtained CCC Mark, CE mark, GE mark, and BEAB Approved Mark. Adopting an energy efficient LED, the product requires no bulb replacement

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Strict quality tests are made to this product before delivery. As its housing is made of ABS materials, it is heat resistant

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