tin carbon pcb cheapest factory price for wholesale A-TECH

Company Advantages
1. A-TECH silver coating pcb is made by using the best grades of materials in our modern manufacturing facilities.
2. The product can withstand the stress from the body. The Achilles tendon protector reduces stress on the Achilles tendon by locking the shoe around the heel.
3. This product can be rapidly loaded and deployed. Its lightweight and compact design is exclusively created for easy and quick erection.
4. A-TECH CIRCUITS Co., Ltd. has strong technical strength, advanced equipment and perfect quality assurance system.
5. Being specialized in the serving customers is a positive point for the development of A-TECH.

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. ranks top in Chinese carbon pcb market.
2. pcb mask is produced strictly according to international quality standards.
3. A-TECH will continue to provide superior hasl pcb . Inquire! The A-TECH brand's consumption philosophy will profoundly lead the transformation of the industry. Inquire! A-TECH CIRCUITS Co., Ltd. has set a goal to become the leader of the peelable mask pcb industry. Inquire!