highly-rated pcb surface finish gold plated bulk production for wholesale

Company Advantages
1. A-TECH peelable solder mask pcb is manufactured with high-quality raw materials which are strictly selected from suppliers.
2. The product is not easy to fade. It is provided with a weather coat that is efficient in UV resistance and the blocking of sunlight exposure.
3. A-TECH CIRCUITS Co., Ltd. owns strong product development team and brand planning team.

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. The A-TECH brand is a very popular peelable solder mask pcb manufacturer.
2. We have the capability of researching and developing state-of-the-art technologies of pcb surface finish .
3. It is our determination to create A-TECH to be the leading enig pcb manufacturer. Get an offer! A-TECH determines to be the leading immersion tin pcb finish manufacturer in accordance with the spirit of peelable mask pcb . Get an offer! A-TECH CIRCUITS Co., Ltd. is committed to build a well-known brand in immersion tin pcb industry. Get an offer! A-TECH has been following the management idea of enig pcb finish to serve the customers wholeheartedly. Get an offer!