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A-TECH Bulk buy enig gold thickness for business for wholesale

A-TECH Bulk buy enig gold thickness for business for wholesale

Shelf Life
6-12 Months
RoHS Compliant
Additional Cost
Supply Capacity
5000 ㎡/Month
UL, ISO9001, TS16949
Payment Terms
T/T, Paypal, WU etc.
Shipment Terms
EXW, FOB, DDU etc.
Test Way
100% E-Test
Get Latest Price
Get the latest price
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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.

The persistent team of A-TECH has also been working hardly on the design of enig pcb finish. This product has been widely used in offices, meeting rooms, dormitories, shops, booths, etc
A-TECH enig gold thickness is creatively designed to help customers break into the fast-growing market. This product has low demands for the subgrade
Our enig pcb finish has its own style than other products thanks to the support of our excellent staff. This product is known fr its strong seismic resistance
enig gold thickness achieves excellent levels of detail. This product has been certified under CE
enig pcb finish achieves to a high level in terms of quality and safety. Even applied in tough conditions, this product has an anti-deformation property
This product will retain its clean appearance. The dust and other residues are not prone to build upon the surface of fabrics over time. This product is highly adaptable to dynamic loads
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