A-TECH high quality osp pcb bulk production at discount

Company Advantages
1. osp pcb has the best design that comes from world-class designers.
2. The product feels smooth. During the calendering process, the fabric passes between the heated rolls to produce a smooth and polished finish.
3. Our osp pcb collection is distributed in many countries.
4. A-TECH CIRCUITS Co., Ltd. has won the favor of customers with first-class products and first-class service.

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. Through years, A-TECH CIRCUITS Co., Ltd. has been engaged in the design and production of immersion silver pcb finish . We are widely accepted in the industry.
2. Our company has excellent designers. They are able to work from the customer's original idea and find smart, innovative and efficient product solutions that meet the exact needs of the customer.
3. In every detail of the work, A-TECH CIRCUITS Co., Ltd. follows the highest ethical standards. Please contact. We strive to prevent and reduce environmental pollution by using appropriate technologies in our products and their design and manufacturing process.