A-TECH carbon osp pcb free delivery for wholesale

Company Advantages
1. A-TECH enig pcb finish is analyzed and inspected on the basis of strict quality requirements. It has passed the inspection of appearance, physical properties, finishing properties, colorfastness, etc. It is characterized by high thermal conductivity and good heat dissipation
2. By stressing the importance of enig pcb finish , A-TECH has attracted more and more customers. Its robust structure allows it to be used in harsh environments
3. Our launched osp pcb are of high quality and enig pcb finish . It has high tensile strength and can be deformed without breakage
4. osp pcb has such advantages as enig pcb finish . Its solder mask can be offered with green, blue, white, black, yellow, and red colors
5. osp pcb is of enig pcb finish , thus it has abroad applying foreground. Its solderable surface is protected from the oxidation

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. We have a team of outstanding leaders. We are always working on developing leadership abilities and potential of the teams. They are able to bring true value to clients by reasonably arrange their orders, inspect and control the production processes, and solve clients' problems timely and effectively.
2. Our commitment to closed-loop sustainability, continuous innovation and imaginative design will help us become an industry leader in this field. Check now!