ADV leveling immersion gold pcb free delivery at discount

Company Advantages
1. ADV enig pcb finish is manufactured with advanced technologies. They include composite weaving technology, modern electrostatic nano-composite technology, textile printing and dyeing technology.
2. immersion gold pcb can be relatively enig pcb finish , and provide features like hasl pcb finish .
3. The product can meet the ever-changing needs overwhelmingly.
4. The product is eye-catching and popular in the market.

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

ADV 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. Shenzhen ADV Technology Co., Ltd. is more than a qualified manufacturer of enig pcb finish , but also a reliable partner for our customers around the world.
2. We have a well-equipped factory. Extensive investment is being continually made in the production lines and machines, which guarantee the reliability of all elements of our supply chain.
3. Shenzhen ADV Technology Co., Ltd. adopts hasl pcb finish as its service creed. Check it! We strongly uphold the tenet of immersion gold pcb to be a dominant supplier at home and abroad. Check it! Shenzhen ADV Technology Co., Ltd. is committed to strengthening the spirit of silver coating pcb . Check it! We provide global customers with perfect integrated solutions for immersion silver pcb . Check it!