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A-TECH China enig pcb finish for business for wholesale

A-TECH China enig pcb finish for business for wholesale

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
Get Latest 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 wide variety of manufacturing machines are applied in A-TECH enig pcb finish production. They are mainly spreading machine, cutting machine, hemming machine, needle detector, sewing machine, flatlock machine, ironing machine (or electric/steam iron), etc. Fatigue resistance and wear resistance make the product be highly recognized in the metal industry
Basic tests have been performed on A-TECH enig pcb finish. These tests include colorfastness testing, abrasion resistance testing, dimensional stability testing, breathability testing, etc. It is guaranteed with a high-temperature resistance performance
The quality inspections of A-TECH enig pcb finish cover different aspects. These inspections include thickness tolerance, flatness, thermal stability, anti-bending capability, and colorfastness. It can be widely used in all kinds of industries, such as electronics and automobile industry
During the design of A-TECH enig pcb finish, various factors have been thought of. They cover physical stress point, comfort level, impact imposed on the feet, and arch support. It comes with precise height, thickness and length, and other parameters
The manufacture of A-TECH enig pcb finish uses various types of technical equipment. They are laser cutters, digital printers, computerized knitting machines, sophisticated prototype systems, etc. After the surface being treated, the product has a glossy surface
The performance of enig pcb finish is almost the same as overseas similar product performance.
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