hard pcb gold plating cheapest factory price for wholesale A-TECH

Company Advantages
1. The raw materials of A-TECH pcb gold plating are well prepared and are efficiently used in the production.
2. This product is regarded as a leader in low electromagnetic emission. It does not tend to affect the normal operation of the peripheral electrical devices by causing a strong electromagnetic field.
3. The product has fine air and water permeability. The surface is treated with a coating film which can change the hygroscopicity of the product.
4. The product is priced low and has a broad market application prospect.
5. It is widely accepted that the product has a prospective market application.

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. Many clients have spoken highly of A-TECH because of our excellent quality carbon pcb .
2. A-TECH uses advanced technology to produce peelable mask pcb .
3. A-TECH CIRCUITS Co., Ltd. will be of good service at all customers. Inquire online! pcb gold plating is the soul of A-TECH CIRCUITS Co., Ltd.'s continuous development. Inquire online!