highly-rated surface finish osp ink for business at discount

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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

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HASL, the full name is Hot Air Solder Leveling, it’s one of the traditional surface finish on printed circuit boards with long successful history.

To make the HASL finish, the circuit boards will be submersed in molten solder(Tin/Lead). 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.

HASL (Tin/Lead) surface finish is not RoHS Compliant, so it can be only available where RoHS exemption is permitted. The typical thickness of HASL is 1-40um, and the shelf life can reach to 12 months.

The advantages of HASL surface finish

● Excellent solderability / wettability
● Good reflow properties
● Low cost in manufacturing
● Large processing window is allowed
● Multiple thermal excursions
● Can be widely used

The disadvantages of HASL surface finish

● Uneven surface
● Not suitable for PCBs with fine pitch
● Thermal shock
● Not RoHS Compliant
● Solder bridge
● Plugged or Reduced plated through holes

A-TECH have HASL surface finish in house, it’s mainly used to build single sided or double sided PCBs with high solderability requirements but low manufacturing cost and without RoHS Compliant requirement.

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A series of tests for A-TECH enig pcb finish have been carried out. It has strictly tested in terms of the performance of the circuit board, plugs, voltage, housing, etc. Its robust casing helps internal components safe in an emergency

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A-TECH surface finish osp go through a polishing process once it is processed by CNC machines. It is gauged, calibrated and then polished to a perfect finish in a wide range of colors and designs. The product has been certified under CE, FCC, UL, and BS

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A-TECH surface finish osp has a good design. Its elements are programmed to respond to climatic factors, to improve energy efficiency or reduce solar heat, or for aesthetic reasons such as an art installation. Featuring automatic thermal cut-off function, the product will not accumulate too much heat

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The workmanship of A-TECH enig pcb finish carefully conducted. It should go through timber cutting, tenoning, trepanning, pressing, or high-speed milling processes. The product has been widely used for electric vehicles, medical equipment, robots, etc

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The package of A-TECH enig pcb finish will be done with professional materials. It is packaged with hardened carton, foam, cardboard, or wooden box to protect it in an all-around way to minimize transportation damage. The product is perfectly suitable for portable electronic devices and electronic appliances

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surface finish osp is equipped with an advanced heat exchanger to greatly improve the heat exchange efficiency of the evaporator. Moreover, it has a variety of protection functions. It is of good durability and reliable safety.

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A-TECH highly-rated surface finish osp for business at discount