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Bulk buy OEM osp pcb solder free delivery for wholesale

Bulk buy OEM osp pcb solder free delivery for wholesale
  • Bulk buy OEM osp pcb solder free delivery for wholesale

Bulk buy OEM osp pcb solder free delivery for wholesale

HAL(Lead Free), the full name is Hot Air leveling with Lead Free. Compared with HASL, the main difference for HAL(Lead Free)...
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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.




Our international designers can help you to design enig pcb finish. It has a wide range of working temperatures
osp pcb is made by new environmentally-friendly material. With small pore diameters, this product can be easily adapted to different application environments
The unique outline feature is one of the most important strengths for enig pcb finish.This product is characterized by its strong resistance to alkali
A-TECH CIRCUITS Co., Ltd. adopts enig pcb finish material to better achieve the high performance of enig pcb finish. With small pore diameters, this product can be easily adapted to different application environments
Evidently, enig pcb finish made from osp pcb indeed show more features. Even not used for a long time, this product will not easily fade
enig pcb finish is the main feature of enig pcb finish produced by A-TECH CIRCUITS Co., Ltd.. This product is known for its good abrasion resistance
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