PCB with HAL(Lead Free)

Company Advantages
1. The raw materials of A-TECH carbon pcb are procured from some of the most trustworthy and certified vendors in the industry.
2. The product can stand up strong disinfectants. Its specially coated metal materials make it effectively withstand disinfection environments.
3. This product will reduce the need for the workforce for its highly advanced system. It will directly cut down labor costs.
4. Thanks to its easy operation and maintenance during its service life, this product can greatly help reduce operation costs.

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. A-TECH is now a great company with a reputation.
2. A-TECH CIRCUITS Co., Ltd. continuously innovates R&D technology.
3. Permanent target of A-TECH CIRCUITS Co., Ltd. is to create the top brand in the carbon pcb industry in the world. Please contact us! A-TECH will be committed to innovation of osp pcb and management philosophy. Please contact us! We adhere to professional service and superior quality of immersion silver pcb . Please contact us!