Such pattern design of immersion tin pcb
is exquisite and special. Its solder mask can be offered with green, blue, white, black, yellow, and red colors2.
The product is popular in the market currently and can be more widely used in the future. A smooth part is added on its PTH line to reduce the roughness of through hole3.
As LED lights are extensively used in many fields, it is produced with a variety of specifications and applications for different market demands. It has high tensile strength and can be deformed without breakage4.
The product features strong resistance to shock. Its shock-proof capacity protects the LED chips or other components from detachment during transportation and shipping. Its working panel is coated with a photo-sensitive epoxy-based ink, which can ensure its insulation resistance5.
Strict quality standards are established in the inspection process to ensure the high quality of products. It has low water absorptivity in the damp environment
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
●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.
With quality immersion tin pcb becoming a core strength, A-TECH CIRCUITS Co., Ltd. excels at R&D, design, manufacture, and sales and achieves great success. Our enig pcb production equipment possesses many innovative features created and designed by us. 2.
Different mechanisms are provided for fabricating different immersion gold pcb .3.
Staff working in A-TECH CIRCUITS Co., Ltd. are all well-trained. We pursue continuous improvement to stay abreast in the ever-changing market. We constantly invest in R& D, continue to set higher standards and expectation for ourselves and work hard to achieve more significant milestones. Contact us!