bulk buy China pcb gold plating carbon company for wholesale

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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-TECH CIRCUITS Co., Ltd. Constantly upgrade and renew production equipment and production lines, and explore technologies and processes to ensure that the overall quality of pcb gold plating produced is more reliable.

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A-TECH CIRCUITS Co., Ltd. Standardized production is carried out in strict accordance with national standards, and the products are strictly tested with almost harsh quality control standards and inspection methods to ensure that the produced pcb gold plating are qualified products with reliable quality.

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A-TECH CIRCUITS Co., Ltd. has a team with rich production experience and strong production capacity, and learns from foreign advanced technology, equipped with the most advanced pcb gold plating production equipment, which provides a strong guarantee for the excellent quality of pcb gold plating.

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Based on the selection of high-quality materials and the application of exquisite craftsmanship, pcb gold plating has a reasonable structure and excellent performance, durable, and is a trustworthy high-quality product.

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Since its inception, the company has always adhered to the business tenet of "establishing a business with science and technology, standardizing management, seeking efficiency, and being honest and trustworthy". We sincerely welcome customers from all over the world and from home and abroad to negotiate and order.

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pcb gold plating is made of selected high-quality materials, matched with high-quality hardware accessories, and manufactured through fine processing technology. It has the advantages of wear resistance, corrosion resistance, and is not easy to fade and deform. It is strong and durable.

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A-TECH bulk buy China pcb gold plating company for wholesale