A-TECH mask hasl pcb bulk production for wholesale

Company Advantages
1. A-TECH immersion tin pcb finish has been tested for quality. All its main components, including the engine, motor, and hydraulic components, are tested to meet our established standards. It has passed AOI which ensures there will be no errors or welding defects
2. This product is environmentally friendly. It can be recycled multiple times to reduce the need for natural fibers or other natural materials. It is widely used in different electronics industries, such as telecommunication and consumer electronics
3. The product is corrosion resistance. It has been processed with powder coating which forms a protective layer on its surface. It is characterized by high thermal conductivity and good heat dissipation

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 insists on manufacturing and selling hasl pcb that meet the national emission regulations.
2. A-TECH has a complete quality management system to make immersion gold pcb .
3. To A-TECH CIRCUITS Co., Ltd., technology innovation is a strategic engine for an enterprise’s sustainable development. Check now!