A-TECH free carbon pcb bulk production at discount

Company Advantages
1. A-TECH peelable solder mask pcb is throughfully and accurately designed to meet the industry trend.
2. The product has increased its competitiveness with its improved quality, performance, and service life.
3. After testing many time, the product lasts longer than most similar products.
4. The product fully enhances the life taste of the owners. By giving out a sense of aesthetical appeal, it satisfies people's spiritual enjoyment.

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. At present, A-TECH CIRCUITS Co., Ltd. is in a leading position in terms of domestic production scale and product quality.
2. We have developed long-term partnerships with our suppliers in the world. With these suppliers, we are able to provide a range of standard products across our entire product range.
3. We make ourselves comply with the rules and regulations of each country in which we operate. We make our products to meet relevant standards in specific countries. We constantly improve ourselves to build partnerships with our clients. We enable them to focus on their core business, whilst we manage our products and services efficiently and cost-effectively. Considering the environmental and resources issues, we implement an efficient program to conserve water, minimize wastewater discharges to sewers or rivers, and fully utilize the resources.