A-TECH mask immersion tin pcb finish Supply for wholesale

Company Advantages
1. All of the materials used in A-TECH immersion tin pcb finish are required to meet relevant demands. The hardware or mechanical components will be tested for mechanical properties and chemical composition. With a compact design, it is space-saving
2. The product is really treasured by our customers for its consistent position in the market. The product has the performance of great stability
3. The product is quality assured as it has undergone numerous rigorous tests before coming into the market. 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. After several years of arduous pioneering, A-TECH CIRCUITS Co., Ltd. has established a good management system and market network.
2. Our excellent technician will always here to provide help or explanation for any problem happened to our immersion tin pcb finish .
3. Our common goal in A-TECH CIRCUITS Co., Ltd. is to become an influential enig pcb finish supplier at home and abroad. Get price!