hot-sale immersion tin pcb air cheapest factory price at discount

Company Advantages
1. The deft design of immersion tin pcb has attracted more and more customers.
2. The product can switch very quickly from emitting light to not doing so. Even a small amount of energy is sufficient to make the semiconductor emit light.
3. The product is currently available in a wide variety of home and industrial products, and the list is growing every year.
4. [企业简称] has advanced technology to process materials. Besides, we have professional installation team and design team. All this ensures good durability and long service life of immersion tin pcb .

HAL(Lead Free), the full name is Hot Air leveling with Lead Free. Compared with HASL, the main difference for HAL(Lead Free) is the element of material which do not contain Lead(Pb), so it’s RoHS Compliant and it’s much more popular and widely used in PCB manufacturing.

HAL(Lead Free) requires higher run temperatures for lead free solder and longer contact time, the production cost for HAL(Lead Free) is slightly higher than HASL(Tin/Lead).

The manufacturing process of HAL(Lead Free) is similar to HASL(Tin/Lead), the circuit boards will be submersed in molten solder(Lead Free). 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.

The typical thickness of HAL(Lead Free) is 1-40um and the shelf life is 12 months.

The advantages of HAL(Lead Free) surface finish

● Good solderability / wettability
● RoHS Compliant
● Good reflow properties
● Large processing window is allowed
● Multiple thermal excursions
● Can be widely used

The disadvantages of HAL(Lead Free) surface finish

● Uneven surface
● Not suitable for PCBs with fine pitch
● Thermal shock
● Solder bridge
● Plugged or Reduced plated through holes

A-TECH have HAL(Lead Free) surface finish in house, It’s basically the highest proportion of finish used for circuit boards without fine pitch or high density layout. We don’t have any additional cost for HAL(Lead Free) surface finish.

Company Features
1. The increasing popularity in the industry indicates that A-TECH has grown to be a more powerful company.
2. With professional technical standards and passionate talents, A-TECH is committed to producing high quality immersion tin pcb .
3. Our business philosophy is to provide the highest services for our customers. We are trying to provide effective solutions and cost benefits that are of mutual benefit to our company and our clients. We value sustainable development. We have instituted robust processes in measuring and monitoring our impact and we are making continual improvements. We help clients with all aspects with product R&D– from concept and design to engineering and testing, to strategic sourcing and freight forwarding. Contact us!