hot-sale hard gold pcb gold plated Suppliers for wholesale

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.

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During the pre-design stage, A-TECH hard gold pcb is exclusively designed with low power or energy consumption capacity by our designers who have years of experience in the electronics industry. This product is ideal for power tools and electric vehicles

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In the manufacturing process of A-TECH hard gold pcb, every production stage is under strict control to prevent issues such as too many sluggish components or parts, high rework rate, and defective percentage. This product does not need prolonged priming when it starts

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A-TECH immersion tin pcb finish is produced in a dust-free and bacteria-free workshop in which the temperature and humidity are strictly controlled and monitored, so as to ensure its high quality. This product allows for more than 2000 charge/discharge cycles

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The metal parts of its electronic components are finely treated with paint, keeping A-TECH immersion tin pcb finish from oxidization and rust which may cause poor contact. It has the advantages of temperature tolerance

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The production of A-TECH hard gold pcb has a high requirement for temperature environment. To protect the electronics components from damage, this product is produced in a suitable temperature and humid-free environment. This product features relatively low internal resistance

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This product has electromagnetic compatibility. It has passed a comprehensive range of EMC tests such as conducted disturbances immunity testing, antenna screening effectiveness testing, and harmonic current emission testing. Its fast charging ability help minimize downtime

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