A-TECH peelable mask pcb free delivery for wholesale

Company Advantages
1. The offered A-TECH [拓展关键词 is precisely manufactured using leading-edge techniques.
2. The product has the advantage of long service life.
3. By guaranteeing carbon ink pcb certification, the quality of peelable mask pcb has been effectively improving.

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 considered to be the competitive manufacturer in the peelable mask pcb industry.
2. With a modern production line, A-TECH CIRCUITS Co., Ltd. has the ability to fully produce high quality immersion gold pcb .
3. We bear social responsibilities. We efficiently using available natural resources like energy and water and implementing on-site recycling programs. Our company has put the focus on building a sustainable supply chain. We have put practices in place to source raw materials ethically and simultaneously develop ways to reduce the need for raw materials. We are making all efforts to transform our manufacturing methods into lean, green, and conserving ones that are more sustainable to both business and environment.