Bulk purchase OEM hard gold pcb air Supply at discount

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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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In the design phase of A-TECH hard gold pcb, many factors have been taken into considerations such as static and dynamic deformations of the structures, stability, accuracy, and anti-fatigue performance, etc. Its materials can be stretchy polyester, cotton, or others

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The manufacture of A-TECH hard gold pcb is of professionalism. The multistage production process is adopted. Its design, production, assembly, and testing will be controlled by separate teams. It has a very large space for brand information

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The materials used for A-TECH hard gold pcb satisfy exacting requirements, including the ability to withstand the handling likely to be encountered in normal operation, the ability to withstand metal fatigue and the ability to be unaffected by any other processes or treatment. The product can be double-sided printed

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The design of A-TECH hard gold pcb involves sophisticated electric knowledge. Its circuit, including main circuit, pilot circuit, and signal circuit are designed with as less as possible connecting wires. Logos and images can be printed on the product by screen printing, heat transfer, and digital printing technology

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A-TECH hard gold pcb meets national energy efficiency standards. It is developed using different energy-saving technologies, including suppression of surge technology, frequency conversion technology, and electromagnetic regulation technology. The product is extensively used in companies, schools, clubs, and sports fields

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The product uses less energy. With a battery charger, the product is more energy efficient than the cost and energy of making new batteries. The product is extensively used in companies, schools, clubs, and sports fields

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A-TECH Bulk purchase OEM hard gold pcb Supply at discount