highly-rated immersion silver pcb solder cheapest factory price at discount

Company Advantages
1. Being unique in its hard gold pcb , the immersion silver pcb manufactured by A-TECH is very popular among customers. The product is certified under UL(E357001) and RoHS
2. Quality, quantity, and efficiency are very important in production management for A-TECH CIRCUITS Co., Ltd.. It has increased power densities which guarantee its long service life
3. The product has been certified to a number of recognized standards, such as ISO quality standards. The product has the performance of great stability
4. Product quality is excellent, in line with industry quality standards. It is 100% produced in accordance with IPC-6012 & IPC-A-600F standards
5. Emitting a very small amount of infrared spectrum, this product is able to illuminate some UV sensitive items which may degrade if exposed to inferior illumination. It can reduce the electrical signal loss and provides the highest efficiency

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.

Company Features
1. A-TECH is at a important place in market.
2. A-TECH has intellectually great technical power to produce immersion silver pcb with finest quality.
3. The spirit of hard gold pcb has been formed in the course of more than decades of years of A-TECH CIRCUITS Co., Ltd. development. Check it!