Company Advantages
1. A-TECH carbon ink pcb is produced with the help of many advanced shoemaking technologies including CAD pattern making, CAM, as well as digital molding technique.
2. immersion tin pcb is applied to carbon ink pcb for its merits of immersion silver pcb finish .
3. The product is widely chosen by the global customers and has a blight application prospect.

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 years of production experience accumulation, A-TECH CIRCUITS Co., Ltd. occupies a larger market share of immersion tin pcb .
2. A-TECH CIRCUITS Co., Ltd. owns a team of professional R&D group and skilled technicians.
3. A-TECH CIRCUITS Co., Ltd. maintains good communication with partners or customers. Inquire! To be the leading immersion gold pcb industry is the constant target of A-TECH. Inquire! A-TECH CIRCUITS Co., Ltd. is willing to contribute to the development of immersion silver pcb industry. Inquire! A-TECH CIRCUITS Co., Ltd. aims to be a top manufacturer for peelable mask pcb . Inquire!