Company Advantages
1. The size of A-TECH tin plating pcb is flexible. It is usually based on a target viewing angle, room size and the number of seats needs to accommodate.
2. For the future development, peelable mask pcb is more suitable in its tin plating pcb than other products.
3. peelable mask pcb have highly marketable properties such as tin plating pcb .
4. A-TECH CIRCUITS Co., Ltd. emphasize quality oversight of qualification activities in manufacturing area.
5. Different raw materials of peelable mask pcb such as tin plating pcb are available during customization.

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 leader in providing quality products and services.
2. A-TECH CIRCUITS Co., Ltd. continues to adopting the new technology for peelable mask pcb production.
3. A-TECH CIRCUITS Co., Ltd. tries to structure tin plating pcb as its service ideology. Please contact. A-TECH CIRCUITS Co., Ltd. continues to invest in carbon pcb , technologies, basic research, engineering capabilities and standards to better service all costumers. Please contact. A-TECH CIRCUITS Co., Ltd. render that carbon ink pcb is the best way to guarantee its prosperity and development. Please contact. Based on the notion of osp coating pcb , A-TECH CIRCUITS Co., Ltd. has achieved great development. Please contact.