HASL Tin Lead Hot Air Solder Leveling PCB

Company Advantages
1. For the manufacturing of A-TECH pcb gold plating , the specially prepared wood materials are selected. Some of them are imported from famous suppliers who meet the wellness standards in the sauna industry.
2. The product features remarkable loading strength. Its materials, mainly metals, have desired mechanical properties to endure heavy-duty use.
3. This product would benefit business owners a lot. It allows the production projects to be finished in a short time, which reduces the waste of time.

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. The A-TECH brand has always attracted many markets and customers.
2. A-TECH CIRCUITS Co., Ltd. does our utmost to ensure we are using the most advanced technology to make sure high quality of enig pcb .
3. A-TECH CIRCUITS Co., Ltd. has always tried our utmost to serve our customers well. Call! For the better development of A-TECH, necessary enterprise culture will be more necessary. Call! A-TECH CIRCUITS Co., Ltd. upholds the true needs to every customer and aims to produce perfect pcb surface finish . Call!