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wholesale China hasl pcb finish immersion Supply at discount

wholesale China hasl pcb finish immersion Supply at discount
  • wholesale China hasl pcb finish immersion Supply at discount

wholesale China hasl pcb finish immersion Supply at discount

A-TECH hasl pcb finish has passed Electromagnetic Compatibility (EMC) testing. This typical testing program consists of various emissions, susceptibility, and immunity requirements, in addition to electrostatic discharge testing, surge testing, and possible on-site evaluations. It has gained a wide reputation for good toughness
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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 manufacturing of A-TECH hasl pcb finish complies with electric industrial standards. All its parts, including wires and cords, plug, and circuit board are manufactured to adapt to the local electricity supply system. The product is popular for its high oxidation resistance
The design of A-TECH hasl pcb finish resorts to different technologies. Take its print circuit board as an example, it is designed using CAD, CAM, and light painting technology by the technicians. It can also be passivated, anodized, and degreased to meet the needs of different technical parameters
A-TECH hasl pcb finish has to pass a series of tests. They include mechanical strength test, resistance to heat and fire test, overload protection test, etc. The product has a compact design and can be space-saving
A-TECH hasl pcb finish meets the requirements of energy efficiency standards. It is compatible in the USA, the EU, and China, including minimum energy performance standards (MEPS) and class-average standards. It is guaranteed with a high-temperature resistance performance
A-TECH hasl pcb finish is developed with the help of advanced solar technology. It adopts the comprehensive technical system which specially caters to the working principle of solar power generation. It is widely used because of better cast property and higher mechanical performance
The product has enough hardness. It can effectively resist scratching due to the friction or pressure from a sharp object. It comes with precise height, thickness and length, and other parameters
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