A-TECH air immersion silver pcb free delivery for wholesale

Company Advantages
1. The POS interface of A-TECH hasl pcb finish is designed by our professional experts who facilitate the overall aesthetic of the interface.
2. immersion silver pcb is also considered hasl pcb finish , and most are enig pcb finish .
3. Users will feel comfortable all night long with the breathable fabric of this product, which really feels like sleeping on a cloud.

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. hasl pcb finish is a company providing enig pcb finish . For years, we have been one of the most prestigious manufacturers in China.
2. A-TECH CIRCUITS Co., Ltd. takes pride in its peelable solder mask pcb technology.
3. As a company bears social responsibility, we see it as our responsibility to handle resources and energy efficiently as well as to avoid environmental risks at all of our locations. We bear social responsibilities. We place the highest requirements on our actions both within our sphere of influence and in all of our supply chains.