HASL Finish PCB Full Name
HASL or Hot Air Solder Leveling is a type of finish used on printed circuit boards (PCB).
How to Manufacturing HASL Finish PCB?
The PCB is typically dipped into a bath of molten solder such that all exposed copper surfaces are covered by solder. Excess solder is removed by scraping the PCB with hot air knives. The HASL process consists of a pre-clean, fluxing, Hot Air Solder Leveling, and a post-clean. Pre-cleaning is usually done with a micro-etch.
How About the Environment of HASL Finish PCB
Despite the effection of RoHS compliance in 2006, normal hasl finish (hot air solder leveling) is still requested nowadays for special products or purpose.
HASL Finish Compare With Lead Free PCB
Hasl finish has excellent wetting during component soldering which is better than lead free hasl finish;
In the other hand,If you project don’t solding small component,HASL Finish PCB also you best choice for you.
In the other hand,If you project don’t solding small component,HASL Finish PCB also you best choice for you.
HASL Finish PCB Features introduce
Hot Air Solder Leveling on printed circuit board are unsuitable for use with fine pitch components because of low planarity and high thermal stress during process may introduce defects to pcbs.
2 Sided Printed Circuit Board2.40mm board thickness
2OZ finish copper thickness
Normal Hasl surface Finish
Min Track/Space: 6/6mil
Min hole: 0.40mm
Solder Mask: Matt Black
6 Sided Printed Circuit Board
3.20mm board thickness
1OZ finish copper thickness
Normal Hasl surface Finish
Min Track/Space: 4/5mil
Min hole: 0.40mm
Solder Mask: Green
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