Company Advantages
1. hasl pcb finish has a broad development prospect and application in pcb surface finish field due to its outstanding design and high-performance materials.
2. The product has a strong structure. All of its metal parts and electric parts are finely soldered together, to improve the whole strength and stability.
3. This product features fine moisture resistance. Its materials can only absorb moisture to a certain extent. This water absorption influences the technical properties, the printability and the adhesion properties of this product.
4. A-TECH CIRCUITS Co., Ltd. has always admired the principle of rigorous service.

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. Various kinds of A-TECH are supplied in A-TECH CIRCUITS Co., Ltd. with high quality.
2. A-TECH CIRCUITS Co., Ltd. has strong technical force and new product development ability.
3. A-TECH has great ambitions to win the main market of pcb surface finish . Inquire online! Customer first has always been A-TECH sticking to. Inquire online! Quality First, Customer Foremost' is the unswerving belief of A-TECH. Inquire online! The A-TECH brand will further develop high-end products for customers. Inquire online!