high quality pcb surface finish hard cheapest factory price at discount

Company Advantages
1. The whole production of A-TECH peelable solder mask pcb is carried out based on the requirement of lean production.
2. Its quality is strictly controlled by our professional QC team.
3. Reasonable design makes this product get long service life. .
4. The product is a cost-effective investment for manufacturers because it does not need frequent maintenance nor repair, which helps to cut costs.

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.

Company Features
1. A-TECH CIRCUITS Co., Ltd. is gradually taking the leading trend in the trade of pcb surface finish .
2. We have built up a strong R&D team. Their extensive R&D activities let us quickly develop products with new functions that meet emerging customer needs.
3. A-TECH CIRCUITS Co., Ltd. has great dream to become a competitive peelable mask pcb supplier. Call now! In the new age, A-TECH PCB will also actively use new business methods. Call now!