A-TECH highly-rated osp pcb cheapest factory price for wholesale

Company Advantages
1. The outline of osp pcb is neutral and can be accepted by a wide arrange of people.Its solderable surface is protected from the oxidation
2. There is strict institution in A-TECH CIRCUITS Co., Ltd. for osp pcb to ensure high quality. It can be printed with numbers, names, data codes, logos, or other specific information
3. osp pcb finish is big pros for osp pcb . It has increased power densities which guarantee its long service life
4. osp pcb have strong resistance to osp pcb finish . 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 CIRCUITS Co., Ltd. is a professional manufacturer of osp pcb finish and other osp pcb products. In the past years, A-TECH CIRCUITS Co., Ltd. has cultivated its own product R&D capabilities.
2. Having passed the certification of pcb gold plating , enig pcb are produced with high performance.
3. Through the efforts of its excellent R&D team, A-TECH CIRCUITS Co., Ltd. is the young pioneer in immersion silver pcb finish market. We have a strong commitment to quality and continuous improvement. This commitment extends to all levels of the company. We strive to achieve the highest standards of excellence; do the right things; continuously learn, develop, and improve; and take pride in our work.