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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A-TECH [拓展关键词 is fully tested under a series of equipment. The testing includes illumination intensity, beam angle, and impulse voltage capacity. Thanks to its solid construction, this product is unaffected by collisions

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Before A-TECH osp pcb is shipped to the gifts or art&crafts stores, it must be checked for its design, color, and quality when the initial product comes out. Its special lowering valve enables the gentle lowering of the load

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During the production of A-TECH osp pcb, it has gone through heat and surface treatments: hardening, induction hardening, chemical browning, and electroless nickel plating. The well-proven fork construction ensures maximum stability

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Each production stage of A-TECH pcb surface finish is strictly conducted by advanced machines including CNC lathes, milling machines, grinding machine, cutting machines, and bending machines. This product is available in many different types to suit all sorts of different requirements

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The manufacture of A-TECH pcb surface finish is of high efficiency. It is made under the CNC cutting, milling, and drilling machines which help improve efficiency in creating mechanical parts. The fork width can be manually adjusted

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hard gold pcb is still valuable due to its advantages as hard gold pcb. This product has strong supporting wheels for outstanding travel and cornering

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