hot-sale carbon pcb ink bulk production for wholesale

Company Advantages
1. The A-TECH carbon pcb is manufactured using high quality of raw materials that are procured from our trusted vendors. The product is certified under UL(E357001) and RoHS
2. Backed by silver coating pcb and latest techniques, we are able to finish the bulk of orders of our esteemed customers on time. It is 100% produced in accordance with IPC-6012 & IPC-A-600F standards
3. The product is of high quality and reliable performance. The inner layer core of the product is chemically treated for improved adhesion of the copper surface
4. The product of A-TECH will not emit damaging ultraviolet ray which may cause the aging of some sensitive materials, such as artworks. Thus, it's a secure illumination product. Being laminated by advanced vacuum lamination equipment, it has a uniform dielectric thickness after lamination
5. The product stands up in the environment with its rugged metal housing and shatterproof light cover. It has a long operational life owing to its firm structure. It is characterized by high thermal conductivity and good heat dissipation

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. has successfully got several patents for technology.
2. Bearing social responsibilities, our company optimizes business operations and facilities. Because of basic necessities such as temperature control, lighting, gas, plumbing, water, and electricity to power machines, simply running the business has an impact on the environment.