hot-sale enig pcb finish solder Suppliers for wholesale

Company Advantages
1. The manufacture of A-TECH enig pcb finish is eco-friendly. An optimal composition of the fuels is used in the production process so as to sustainably reduce the proportion of emissions. It is vacuum-sealed, which can greatly reduce the bulk of the overall cargo
2. Supported by ingenious team, A-TECH has highly recommended service team. It is lead-free and environmental-friendly and has passed SGS test
3. This product has a convenient operation with long service life.
4. A strict quality assurance system has been established to ensure the quality of the product. Its robust structure allows it to be used in harsh environments

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 trustworthy company based in China. We have achieved immense success in designing and manufacturing enig pcb finish . Our business strength is derived from the cumulative experience of our team members. They have combined practical business experience with strong technology delivery capabilities, bringing the best results of our products.
2. Our R&D team is the power source of our development. They draw on their years of R&D experience to continuously improve product performance and research new technologies.
3. We have staff that are well trained in their roles. They perform tasks far quicker and make the quality of work better, thereby increasing the productivity of the company. Our mission is to build partnerships with our clients that enable them to focus on their core business, whilst we manage our products and services efficiently and cost-effectively.