highly-rated enig pcb mask cheapest factory price at discount

Company Advantages
1. A-TECH osp pcb finish is fabricated combining with the simple and modern design concept.
2. This product is highly safe. It is equipped with an electrical protection system to avoid risks such as leakage, over current and overheating.
3. The product has an earthquake-resistant design. Featuring a stable construction, it is designed to be rigid and strong to resist any form of sharp shaking.
4. Quality assurance system is established to ensure the quality of enig pcb .

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. Over the years, A-TECH CIRCUITS Co., Ltd. has been producing enig pcb . So far, we have been regarded as a reliable manufacturer in the industry.
2. A-TECH PCB owns its own factory building and advanced production equipment.
3. We sincerely embed sustainability throughout our businesses. To continue this endeavor, we are being equipped with high-end technology to deal with production waste. Over the years, all of our business activities comply with the letter of the law and the spirit of equal and friendly cooperation. We call for moral cooperation and business. We will uncompromisingly refuse any vicious competition. We aim to maintain strict environmental and sustainability standards throughout our production process. We achieve cost savings at various stages by cutting the costs of raw materials and reducing manufacturing expenses. We have established a clear environmental protection plan for the production process. They are mainly reusing materials to minimize waste, avoiding chemicals-intensive processes, or processing production wastes for secondary uses.