HASL Tin Lead Hot Air Solder Leveling PCB

Company Advantages
1. A-TECH osp pcb finish is carefully designed. It is carried out by our designers who take bag shapes, styles and construction into considerations.
2. pcb surface finish have been widely used in osp pcb finish for their hard gold pcb features.
3. A-TECH CIRCUITS Co., Ltd. owns competitive production with a strong brand appeal.
4. In order to meet the higher quality requirements of customers, A-TECH has carried out refined quality assurance procedure.

HASL, the full name is Hot Air Solder Leveling, it’s one of the traditional surface finish on printed circuit boards with long successful history.

To make the HASL finish, the circuit boards will be submersed in molten solder(Tin/Lead). 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.

HASL (Tin/Lead) surface finish is not RoHS Compliant, so it can be only available where RoHS exemption is permitted. The typical thickness of HASL is 1-40um, and the shelf life can reach to 12 months.

The advantages of HASL surface finish

● Excellent solderability / wettability
● Good reflow properties
● Low cost in manufacturing
● Large processing window is allowed
● Multiple thermal excursions
● Can be widely used

The disadvantages of HASL surface finish

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

A-TECH have HASL surface finish in house, it’s mainly used to build single sided or double sided PCBs with high solderability requirements but low manufacturing cost and without RoHS Compliant requirement.

Company Features
1. By giving quality pcb surface finish at a competitive price,'' A-TECH CIRCUITS Co., Ltd. has been highly recognized in the worldwide industry.
2. The assurance of technical force also guarantees the quality of immersion gold pcb .
3. A-TECH CIRCUITS Co., Ltd. will provide one-stop solution for our immersion silver pcb to help customers. Check now! Upholding the tenet of being the influential enig pcb supplier, A-TECH has been getting its passion everyday to serve customers. Check now! A-TECH CIRCUITS Co., Ltd. commits to build win-win relationship with our customer. Check now!