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hot-sale hasl pcb surface finish carbon free delivery for wholesale

hot-sale hasl pcb surface finish carbon free delivery for wholesale
  • hot-sale hasl pcb surface finish carbon free delivery for wholesale

hot-sale hasl pcb surface finish carbon free delivery for wholesale

hasl pcb surface finish has attracted international attention for its high quality surface finish osp .
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Company Advantages
1. A-TECH enig pcb finish is professionally designed. It is carried out by our designers who utilize the latest CAD systems with 3-D capabilities and associative geometry. It stands out for its impact endurance performance
2. This product makes an impression in terms of decoration. Conveying its high quality in its appearance, it is impressive and makes a statement. It can be manufactured with a customized thickness
3. The product is highly resistant to pressure. It is made of composite metal materials such as copper or aluminum alloy which feature excellent hardness and anti-impact resistance. Its robust structure allows it to be used in harsh environments


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 surface finish has attracted international attention for its high quality surface finish osp .
2. Our mission is to understand our customers as well as our market to provide products and services beyond their expectations to enhance their quality of life.
Environmental testing is one of the main steps in the production of A-TECH enig pcb finish. Strict inspection is carried our to eliminate toxic substances such as mercury and lead. Yulin main products include electric hedge trimmer, tree digging machine, fogging machine etc
The manufacture of A-TECH hasl pcb surface finish involves several stages, including materials preparation, stud welding, resistance welding, plastic welding, PCB assembly, polishing, and finishing. Yulin provide various top rated garden machinery & farm implements
A-TECH enig pcb finish has passed the necessary inspections. It must be inspected in terms of moisture content, dimension stability, static loading, colors, and texture. Yulin Machinery has strong research and developing capability
A-TECH surface finish osp is of professional design. It is based on the knowledge of how manufacturing, surface, and material specifications relate to each other and can affect overall optical performance. Yulin main products include electric hedge trimmer, tree digging machine, fogging machine etc
A-TECH enig pcb finish is strictly checked in the production process. Its color difference, color fastness, fabric weight, seam slip, etc. are all studied. We provide custom service for garden equipments & agricultural inplements
This product has the desired elasticity. The properties of fabrics such as density, thickness, and yarn twist are all enhanced to withstand stretch. Yulin provide various top rated garden machinery & farm implements
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