high quality immersion silver pcb solder cheapest factory price for wholesale

Company Advantages
1. A-TECH immersion silver pcb is under the real-time control of the R&D team. The team will carry out a routine sampling and analysis of the raw materials so as to acquire information necessary for the economic appraisal of ores and concentrates.
2. The stable performance and long lifespan make the product stand out from competitors.
3. The product can store as much as solar power during the day to provide a safe and reliable back-up power supply to itself.

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. As an experienced professional immersion silver pcb suppliers, A-TECH CIRCUITS Co., Ltd. has been working to promote pcb surface finish revolution.
2. We offer our products and services to consumers across the globe. So far, our products have been widely sold to America, some European countries, and Asia.
3. Our company believes that bearing social responsibility will help us cultivate a growing environment, team alliances, and positively influence the experience of our customers. Inquire! Our company is committed to climate action, including reducing energy demand and greenhouse gas emissions associated with our products and operations. Regardless of the political perspective, climate action is a global issue and a problem for our customers to demand solutions. Inquire! Our company will adhere to high standards of professional ethics and deal with our customers with integrity and fairness to achieve long-term success. Inquire!