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A-TECH carbon immersion silver pcb finish manufacturers at discount

A-TECH carbon immersion silver pcb finish manufacturers at discount

Thickness
0.1-0.3um
Shelf Life
6-12 Months
Solderability
Good
RoHS Compliant
Yes
Additional Cost
Yes
Supply Capacity
5000 ㎡/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
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Quantity Needed:
Pieces
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Immersion Silver, it’s also known as Immersion Ag, it’s produced by the selective displacement of the copper atoms by silver atoms on the exposed copper surface. As an improvement on HASL with more flat surface, the cost of Immersion Ag is more expensive than HASL but less expensive than Immersion Gold.

Immersion Ag is a RoHS compliant finish, and it’s compatible with surface mount, BGA and through hole components. The typical thickness of Imm Ag is 0.1-0.3um and the shelf life is 6-12 months.



The advantages of Immersion Silver

● Absolutely flat
● Good for fine pitch and SMD
● Good for press fit connector’s capability
● Excellent solderability
● Multiple heat cycles during assembly process
● It’s reworkable



The disadvantages of Immersion Silver

● Very sensitive to handling / tarnishing / cosmetic concerns – gloves must be used
● Short operating window between assembly stages
● Not recommended to use peelable masks
● Special packaging required – if packaged opened and not all boards used, it must be resealed quickly
● Reduced supply chain options to support this surface finish



A-TECH offers the surface finish of immersion silver, since this finish is much more sensitive in manufacturing and it’s more susceptible to temperature and humidity than other finishes, we use special operation standards and higher level of packing standards to ensure excellent appearance of immersion Ag.




A-TECH immersion silver pcb finish is finished with the aid of CNC machines. The advanced CNC machine can ensure its precise measurement and uniform appearance.
A-TECH immersion silver pcb finish is developed after vast research on similar products. It is developed to embrace many distinctive and optimized advantages such as wider input voltage range, strong surge withstanding capacity, as well as excellent electromagnetic compatibility. Adopting integrated design, the product is notable for long-term stability
The quality of A-TECH immersion silver pcb finish meets the National Sanitation Foundation recommendations for water purifiers. Each production stage will be scrutinized to guarantee its quality. Having a multilingual function, it provides instructions in more than eleven languages
The necessary tests on A-TECH immersion silver pcb finish must be conducted. It has passed EMF (electromagnetic fields) tests according to EN 62233, environmental tests (climatic, impact, vibrations, IP rating), and on-site tests. Having a multilingual function, it provides instructions in more than eleven languages
Inspection of A-TECH immersion silver pcb finish involves various aspects. It will be checked with regards to its power supply and voltage grade, the pin in the wires, wire disconnection, resistor, and capacitor. The product uses a German laser light source which can constantly work for 24 hours
immersion silver pcb finish makes full use of immersion silver pcb finish materials, thus has features of immersion silver pcb finish. Coming with a high power cooling system, it guarantees huge heat dispersion
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