wholesale China osp surface finish hard factory for wholesale

Latest products

4 layers PCB with IPC CLASS3 acceptance standard

4 layers PCB with SHENGYI S1000-2

4 layers PCB with impedance control

4 layers PCB with ENIG finish

Product Information
Feedback

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.

k******o

The series of enig pcb finish are enig pcb finish, will bring the best result of enig pcb finish for you. Improving the quality of products and wining the market are our ultimate goal

k******e

No other osp surface finish has been able to equal its osp surface finish. Hanway will as always, pursue excellence with its own ability to win the recognition of clients in the world

f******g

osp surface finish is osp surface finish, thus realizing the hope of osp surface finish. We will be responsible for providing the competitive high quality products with reasonable price

v******w

osp surface finish tend to be more osp surface finish than other brands. Hanway follows the principle of customer first

x******b

With enig pcb finish structure, osp surface finish is characterized by enig pcb finish. Improving the quality of products and wining the market are our ultimate goal

w******v

osp surface finish All have passed strict quality testing by authoritative organizations, do not contain alcohol, fluorescent whitening agents and formaldehyde, are mild and non-irritating, and are safer to use.

Product Message

*Name

Phone

*E-mail

*Content

A-TECH hard osp surface finish factory for wholesale