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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.




The raw materials used to manufacture A-TECH osp pcb are from well-known suppliers of premium quality materials who have been recognized by international certificates. When assembled, the puzzle looks fairly seamless and there are no raised pieces that won’t lie flat
Using the latest technology throughout the whole production process, A-TECH enig pcb finish is fine in workmanship. When assembled, the puzzle looks fairly seamless and there are no raised pieces that won’t lie flat
Our marvelous A-TECH enig pcb finish is manufactured under the supervision of our highly skilled personnel. It can be designed with letters tips on the back of every piece for easy solving
With the support of our skilled professionals, the production process of A-TECH enig pcb finish is rather efficient and meets the industry standard. Pictures used in puzzles are customizable with customer's own photographs or pictures
The whole production of A-TECH osp pcb is finely finished by our dedicated experienced production team. It can be designed with letters tips on the back of every piece for easy solving
The product has value beyond its function and features. It features an easy-to-clean surface that makes cleanup simple after accidental spills
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