A-TECH mask immersion gold plating bulk production at discount

Company Advantages
1. The design of A-TECH enig pcb finish conveys an absolutely stunning blend of aesthetics and practicality. It stands out for its impact endurance performance
2. Our immersion gold plating will be well packed for long distance transportation. Being laminated by advanced vacuum lamination equipment, it has a uniform dielectric thickness after lamination
3. The product features the desired stiffness. It is resistant to different failure modes thanks to its mechanical properties such as yield strength and hardness. It has high tensile strength and can be deformed without breakage
4. The product is available in a variety of colors, including all standards of colors for traditional bedding. The inner layer core of the product is chemically treated for improved adhesion of the copper surface

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. has been widely recognized for manufacturing and supplying quality enig pcb finish . We are now one of the leading providers in China. immersion gold plating sells well for its high quality.
2. A-TECH CIRCUITS Co., Ltd. has an experienced and innovative R & D team.
3. The technology applied by A-TECH has been beneficial to the quality improvement of lf hasl . As the environment has close relations to our business sustainable development, we have made a long-term plan to reduce our carbon footprint and pollution on the environment.