A-TECH high quality immersion tin pcb bulk production for wholesale

Company Advantages
1. A-TECH immersion tin pcb finish has passed various tests. It is evaluated in terms of fabrics, stitching, structures, accessories, etc.
2. The application of immersion tin pcb finish gives rise to the greater performance of immersion tin pcb .
3. The product has attained a high customer satisfaction according to the feedback.

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 has been spent years of efforts into developing high quality immersion tin pcb .
2. A-TECH keeps studying newly innovative technology to manufacture pcb mask.
3. Honesty and responsibility are crucial to the development of A-TECH CIRCUITS Co., Ltd.. Call now! A-TECH will continue to compose a new chapter in immersion gold pcb market. Call now! A-TECH CIRCUITS Co., Ltd. is committed to creating excellent company that has provides solutions for carbon pcb . Call now!