highly-rated peelable mask pcb immersion cheapest factory price for wholesale

Company Advantages
1. Stringent performance tests for A-TECH enig pcb finish have been completed with reasonable results. The product has passed tests of physical properties, including colorfastness, fabric strength, tension strength, shrinkage, and resistance to tearing, washing, and UV.
2. We have our team of professional quality inspector to help ensure the product is of stable performance and reliable quality.
3. A-TECH will continually create high-quality and high value-added peelable mask pcb for customers with the attitude of the pioneer.

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 now a well-known company and is a leader in the peelable mask pcb industry.
2. Our company has set up a dedicated sales team. They focus on promoting our business to grow. They have years of in helping our customers to achieve their business goals.
3. A-TECH CIRCUITS Co., Ltd. will unswervingly supply high quality pcb surface finish . Contact! Quality is always a solid foundation for long-term development of A-TECH CIRCUITS Co., Ltd.. Contact! By providing excellent products and thoughtful services to our customers, A-TECH maximizes the value of our customers. Contact! We have a mutual dream of being an international immersion silver pcb manufacturer some day. Contact!