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hot-sale enig pcb finish hard cheapest factory price at discount

hot-sale enig pcb finish hard cheapest factory price at discount
  • hot-sale enig pcb finish hard cheapest factory price at discount

hot-sale enig pcb finish hard cheapest factory price at discount

A-TECH enig pcb finish is produced in strict accordance with international production specification and standards. It meets PAHs requirements in line with REACH Regulation
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HAL(Lead Free), the full name is Hot Air leveling with Lead Free. Compared with HASL, the main difference for HAL(Lead Free) is the element of material which do not contain Lead(Pb), so it’s RoHS Compliant and it’s much more popular and widely used in PCB manufacturing.

HAL(Lead Free) requires higher run temperatures for lead free solder and longer contact time, the production cost for HAL(Lead Free) is slightly higher than HASL(Tin/Lead).

The manufacturing process of HAL(Lead Free) is similar to HASL(Tin/Lead), the circuit boards will be submersed in molten solder(Lead Free). This solder will cover all the exposed copper surfaces. Upon retraction from the solder, high pressure hot air is blown over the surface through air knives, this levels the solder deposit and removes the excess solder from the surface of printed circuit boards.

The typical thickness of HAL(Lead Free) is 1-40um and the shelf life is 12 months.

The advantages of HAL(Lead Free) surface finish

● Good solderability / wettability
● RoHS Compliant
● Good reflow properties
● Large processing window is allowed
● Multiple thermal excursions
● Can be widely used

The disadvantages of HAL(Lead Free) surface finish

● Uneven surface
● Not suitable for PCBs with fine pitch
● Thermal shock
● Solder bridge
● Plugged or Reduced plated through holes

A-TECH have HAL(Lead Free) surface finish in house, It’s basically the highest proportion of finish used for circuit boards without fine pitch or high density layout. We don’t have any additional cost for HAL(Lead Free) surface finish.

When manufacturing A-TECH enig pcb finish, we take the quality of raw materials into consideration. It can be customized with metal ions like copper ions to increase effectiveness
A-TECH enig pcb finish has a variety of designs to meet with different customer needs. It is designed and manufactured in accordance with China GB, GB/T, and GHZB standards
A-TECH enig pcb finish is manufactured by using the high precision equipment and the latest technology. It protects the skin from scratches and bruises
A-TECH enig pcb finish is designed for ease-of-use to improve convenience. It is extremely lightweight and the wearer never has to be weighed down by it
All raw materials used to manufactured A-TECH enig pcb finish have to go through stringent quality checking procedure. The tight compression means it will stay firmly in place when in use
The product has the required durability. It features a protective surface to prevent humidity, insects or stains to enter into the inner structure. It can be designed with expansion pleats for extra comfort and flexibility
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