highly-rated immersion tin pcb gold plated cheapest factory price for wholesale

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.

c******n

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 enig pcb finish produced is more reliable.

t******l

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 immersion tin pcb are qualified products with reliable quality.

a******t

The company has strong strength and strict management. It not only has a standardized production workshop, but also has established a perfect quality management system. From the selection of raw materials to the delivery of finished products, the quality is strictly controlled in every link to ensure the excellent quality of immersion tin pcb.

p******p

The enig pcb finish we produce is fine in workmanship, reasonable in design, excellent in performance and stable in quality, and is a trustworthy high-quality product.

w******e

immersion tin pcb The design is scientific and reasonable, the materials are exquisite, the workmanship is fine, durable, and the service life is long. It is a product of high quality and extraordinary quality.

j******y

Many customers are satisfied with the high quality of this product. The product has the advantages of heavy tension and impact resistance

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