A-TECH Bulk buy hasl pcb surface finish bulk production at discount

Company Advantages
1. A-TECH enig pcb finish has passed a series of technological examination. The fiber was evaluated in terms of suture, structure, tensile strength and rubbing fastness. It totally conforms to the UL Flame Rating of 94V-0
2. The product can meet the various needs of customers and is increasingly used in the global market. It has passed AOI which ensures there will be no errors or welding defects
3. Prior to delivery, the product must be rigorously inspected to ensure high quality in all aspects of performance, availability and more. It can reduce the electrical signal loss and provides the highest efficiency
4. The product excels at meeting and exceeding quality standards. It is lead-free and environmental-friendly and has passed SGS test

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 CIRCUITS Co., Ltd. has core technologies and independent R&D capabilities for hasl pcb surface finish production.
2. A-TECH CIRCUITS Co., Ltd. vigorously implements strategy of enig pcb finish . Call now!