A-TECH carbon immersion silver pcb free delivery at discount

Company Advantages
1. A-TECH immersion silver pcb stands out with sophisticated production process and reasonable design.
2. The product comes with assured quality, which has been proven by international certifications.
3. People said that they no longer worry about the environmental pollution problem as this product can be properly recycled.

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. With a reputation of the outstanding manufacturer, A-TECH CIRCUITS Co., Ltd. is a company with a wealth of experience in developing and manufacturing osp pcb finish .
2. Whenever there is any problems for our immersion silver pcb , you can feel free to ask our professional technician for help.
3. A-TECH is the life line of A-TECH CIRCUITS Co., Ltd., so we will respect every feedback from our customers. Check it! Striving to be a professionalist of pcb mask industry is our goal. Check it! A-TECH CIRCUITS Co., Ltd. seeks to structure lead free hasl pcb as its service creed. Check it! In line with the principle of peelable mask pcb , A-TECH have gradually expanded the business. Check it!