A-TECH free tin plating pcb Suppliers at discount

Company Advantages
1. Evidently, tin plating pcb made from enig pcb finish indeed show more features. Its working panel is coated with a photo-sensitive epoxy-based ink, which can ensure its insulation resistance
2. The product is able to instantly and hugely change the layout of the space, allowing for great flexibility and design ideas. It stands out for its impact endurance performance
3. The product plays an important role in dissipating the heat generated from the device by air cooling, fluid cooling, or other cooling mediums. It is lead-free and environmental-friendly and has passed SGS test

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 CIRCUITS Co., Ltd. has a long-standing reputation in tin plating pcb market. A-TECH CIRCUITS Co., Ltd. is actively promoting the commercialization of new enig pcb finish .
2. A-TECH CIRCUITS Co., Ltd. has accumulated much immersion silver pcb finish production experience during their development.
3. Apart from its delicate appearance, enig pcb finish also attracts many customers for its enig pcb finish . We are guided by our sustainable development goals. We will develop and manufacture our products in a way that ensures they are safe, environmentally friendly and economical.