high quality pcb surface finish free cheapest factory price for wholesale

Company Advantages
1. A-TECH hard gold pcb will go through quality assurance tests. It has passed electric component anti-fatigue testing, insulation level, energy-saving level, and electromagnetic safety test. It has low water absorptivity in the damp environment
2. If you can trust in us, A-TECH CIRCUITS Co., Ltd. will never let you down for the quality of pcb surface finish .
3. pcb surface finish can be used for hard gold pcb . It can be manufactured with a customized thickness

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.

Company Features
1. A-TECH enjoys a good reputation for its pcb surface finish .
2. A-TECH CIRCUITS Co., Ltd. has a number of advanced production lines for osp pcb .
3. Welcome to make inquiries for our great peelable mask pcb . Inquiry!

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Our pcb surface finish are constantly updated to follow the trend. The product has good washability and flexibility

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The production of osp pcb always take pcb surface finish into account. It's ideal for personal style DIY items

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The special composition of hard gold pcb makes it obtain good performances like pcb surface finish. The product has high strength and resilience

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With peelable mask pcb structure, pcb surface finish is characterized by peelable mask pcb. The product can withstand heat press temperature up to 185°C/365°F

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osp pcb is made of hard gold pcb and has the advantages of hard gold pcb. The product offers high definition and life-like picture output

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The product has enough hardness. It can effectively resist scratching due to the friction or pressure from a sharp object. It can be designed into a matte or glossy type

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