A-TECH Bulk buy custom enig surface finish company for wholesale

Company Advantages
1. A-TECH enig surface finish is fabricated from optimum raw material supplied from top-grade vendors. The product has dynamic and mechanical stability
2. The price of this product is competitive and it is now widely used in the market. It has passed AOI which ensures there will be no errors or welding defects
3. The product has high draping quality. Its fabric has strong flexibility and bending resistance. Its solder mask can be offered with green, blue, white, black, yellow, and red colors
4. This product can withstand the most stringent industrial conditions. It is made of new materials, such as improved steel alloys and other composites, which are durable enough. It is 100% produced in accordance with IPC-6012 & IPC-A-600F standards

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. With the development of economy, A-TECH has gained much reputation in enig surface finish manufacture industry.
2. Thanks to the advance technology, A-TECH CIRCUITS Co., Ltd. greatly increases the output of pcb mask .
3. We bear social responsibilities. This is why we attach great importance to the energy and resource efficiency of our products and ensure that we comply with all recognized environmental and social standards.