PCB with Immersion Gold (ENIG)

Company Advantages
1. The production of A-TECH lead free hasl pcb adopts standardized production technology.
2. The product features high precision in sizes. It is processed by advanced CNC machines, which is less likely to occur errors.
3. The product has the advantages of fire resistance. It has the ability to withstand against fire without changing its shape and other properties.
4. We have great confidence in our immersion silver pcb quality.

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. Years of continuous progress makes A-TECH CIRCUITS Co., Ltd. an expert in this field. We specialize in the production of immersion silver pcb and other similar products.
2. Through our dovish manage, standardized operation, A-TECH CIRCUITS Co., Ltd. has gradually ushered in a vast harmonious business environment.
3. A-TECH CIRCUITS Co., Ltd. has a full set of professional sales service. Inquire now! In the process of its business operation, A-TECH CIRCUITS Co., Ltd. has paid great attention to the molding of corporate culture. Inquire now! A-TECH CIRCUITS Co., Ltd. eagerly looks forward to establish long-term business partner relationships with clients and businessmen from all over the world. Inquire now! A-TECH aims to supply the excellent service for customers. Inquire now!