HASL Tin Lead Hot Air Solder Leveling PCB

Company Advantages
1. A-TECH peelable solder mask pcb undergoes numerous stages of production before it is completed. These stages include designing, stamping, sewing (the pieces composing the shaft are sewn together), and die assembling.
2. This product guarantees high quality and excellent performance, as all factors affecting its quality and production performance are immediately detected and then corrected by our trained QC personnel.
3. The product is quality certified for long life.
4. With its attractive features to buyers, this product is sure to find a wider range of applications in the market.

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. A-TECH CIRCUITS Co., Ltd. is a popular enig pcb manufacturer at home and abroad market.
2. To satisfy the needs of technical innovation in this society, our experienced team has been researching and developing immersion gold pcb persistently.
3. Serving customers well is what A-TECH CIRCUITS Co., Ltd. should stick to. Please contact us! A-TECH is professional in producing pcb surface finish with excellent service. Please contact us! Customer satisfaction is A-TECH CIRCUITS Co., Ltd.'s eternal pursuit. Please contact us! The service of A-TECH is highly recommended. Please contact us!