A-TECH mask osp pcb bulk production at discount

Company Advantages
1. During the design of A-TECH osp pcb , advanced equipment is used, including CAD, cutting plotter, cutting machine, and sewing machine, which are conducted by specifically skilled workers. Its working panel is coated with a photo-sensitive epoxy-based ink, which can ensure its insulation resistance
2. A-TECH CIRCUITS Co., Ltd. is full of vitality, energy and warrior spirit. It can be manufactured with a customized thickness
3. The product cause no infection and microbial contamination. It will not leave any trace metal residue on the tissue of the body. It is extremely popular in the markets of Europe, North America, and Asia
4. The product is highly hypo-allergenic. It has been tested to be totally free of harmful substances and allergenic substances. 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 one of the leading osp pcb suppliers in China. We have continuously expanded our international network of dedicated distributors. This gives us the opportunity to serve a wide range of customer base around the world.
2. Our factory has a complete quality management system which provides specific requirements for equipment operation, technology, product inspection, and scrutinization.
3. The factory is equipped with a full set of modern advanced manufacturing facilities. These facilities have given great support for production no matter in the aspects of guaranteeing product quality or the overall production efficiency. A-TECH focuses on the balance of service, quality and cost in operations. Contact!