A-TECH hot-sale pcb mask cheapest factory price for wholesale

Company Advantages
1. It is pcb mask that makes it more reliable.
2. The product is well designed to adapt to voltage in different countries such as the United States, Australia, and England. Therefore, users are free of the concern of wrong voltage problems.
3. Because of its excellent characteristics, the product has gotten a much wider application.
4. The product is very robust and has no moving parts, filaments or fragile glass used in the bulb, which is safe to use.

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 one of the prominent manufacturers in China. Incorporating the entirety of our knowledge and experience, we provide peelable solder mask pcb .
2. pcb mask is produced in strict accordance with international quality standards.
3. Reliability and integrity are the cornerstones of A-TECH PCB 's strong relationships with our partners. Call! A-TECH is determined to dedicating itself to a cause that it will become a competitive brand among carbon pcb industry. Call!