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A-TECH  >  AI - Page Sitemap  >  A-TECH hot-sale peelable mask pcb factory at discount
A-TECH hot-sale peelable mask pcb factory at discount

A-TECH hot-sale peelable mask pcb factory at discount

Thickness
1-5U
Shelf Life
12 Months
Solderability
Good
RoHS Compliant
Yes
Additional Cost
Yes
Supply Capacity
20000 ㎡/Month
Certifications
UL, ISO9001, TS16949
Payment Terms
T/T, Paypal, WU etc.
Shipment Terms
EXW, FOB, DDU etc.
Test Way
100% E-Test
Standard
IPC CLASS 2 / CLASS 3
Price
Get Latest Price
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Quantity Needed:
Pieces
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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.




A-TECH peelable mask pcb is carefully designed. Advanced calculation software helps to design its shape, to calculate it's static and to plan further details.
The design considerations of A-TECH immersion silver pcb finish cover the following aspects: static and dynamic stiffness, operational speeds, gearboxes, manual, and automatic control.
A-TECH peelable mask pcb is of superior quality. It is ensured to be the best in terms of its materials, processing methods and surface process technology.
The manufacturing process of A-TECH peelable mask pcb proceeds as follows: the procurement of raw materials, parts and components processing, plating and anodizing, complete mechanical assembly, and testing.
During the development of A-TECH immersion silver pcb finish, several disciplines have been adopted. It is developed under the knowledge of mechanical engineering, physical mechanics, hydraulic transmission and control, and so on.
The product undergoes strict QC procedures including process control, random inspection, and routine inspection. These inspections prove to be helpful to the quality of the product.
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