A-TECH hot-sale pcb surface finish cheapest factory price for wholesale

Company Advantages
1. A-TECH [拓展关键词 is fully tested under a series of equipment. The testing includes illumination intensity, beam angle, and impulse voltage capacity.
2. It has accurate color fidelity. It has the ability to maintain the same RGB (Red-Green-Blue) color balance of the projector’s actual light signal.
3. The product runs very silently. Compared to the wind turbines and hydroelectricity devices which are incredibly noisy, it does not make any noise.
4. Thanks to the good comments from our long-term partners, A-TECH has attracted more attention in the world.
5. A-TECH CIRCUITS Co., Ltd. has established processing and quality monitoring system.

HASL, the full name is Hot Air Solder Leveling, it’s one of the traditional surface finish on printed circuit boards with long successful history.

To make the HASL finish, the circuit boards will be submersed in molten solder(Tin/Lead). 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.

HASL (Tin/Lead) surface finish is not RoHS Compliant, so it can be only available where RoHS exemption is permitted. The typical thickness of HASL is 1-40um, and the shelf life can reach to 12 months.

The advantages of HASL surface finish

● Excellent solderability / wettability
● Good reflow properties
● Low cost in manufacturing
● Large processing window is allowed
● Multiple thermal excursions
● Can be widely used

The disadvantages of HASL surface finish

● Uneven surface
● Not suitable for PCBs with fine pitch
● Thermal shock
● Not RoHS Compliant
● Solder bridge
● Plugged or Reduced plated through holes

A-TECH have HASL surface finish in house, it’s mainly used to build single sided or double sided PCBs with high solderability requirements but low manufacturing cost and without RoHS Compliant requirement.

Company Features
1. A-TECH CIRCUITS Co., Ltd. is an integrated supplier that provides consumers with comprehensive tin plating pcb products and pcb surface finish services.
2. Being produced with advanced machine, the finest pcb mask has gained wide recognition from customers.
3. The customer service team at A-TECH PCB always listens carefully and objectively to the needs of customers. Check now! The present goal for A-TECH would be to enhance client satisfaction while retaining the first-rate of this item. Check now!