0.5oz-5oz Thickness Copper Printed Circuit Board With HASL Surface Finishing

HASL Surface Treatment PCB

HASL (Hot Air Solder Leveling) is a common surface finish used on Printed Circuit Boards (PCBs). The process involves immersing the bare PCB in a molten solder bath and then leveling the solder with a blast of hot air. This creates a thin, uniform coating of solder over all exposed copper surfaces, including pads, holes, and traces. The main purpose of this finish is to protect the underlying copper from oxidation and ensure excellent solderability for component assembly.

Mainly Feature:

• Excellent Solderability: The primary advantage of HASL is its superior solderability. Since the surface is pre-coated with solder, components can be easily and reliably attached during the assembly process.

• Low Cost: HASL is one of the most cost-effective surface finishes available, making it a popular choice for budget-conscious projects.

• Good Shelf Life: PCBs with a HASL finish can be stored for an extended period (typically up to 12 months) without significant loss of solderability.

• Durability: The finish is quite robust and can withstand multiple thermal cycles, which is important for double-sided assembly processes.

• Not Ideal for Fine Pitch Components: A drawback of HASL is that the leveling process can sometimes leave an uneven surface, which is not suitable for fine pitch (small spacing between pins) or BGA (Ball Grid Array) components where flatness is critical.

Application Scenarios

• Consumer Electronics: From home appliances to basic audio equipment, HASL is a go-to choice for products that don't require ultra-fine pitch components.

• Industrial Control: PCBs for industrial machinery and control systems often use HASL because of its durability and low cost, making it ideal for robust, long-lasting products.

• Automotive Electronics: It's used in various automotive parts and systems, especially for non-critical functions, due to its ability to handle demanding environments.

• General Purpose Boards: For prototyping and general-purpose electronics where high-density routing and fine pitch components are not a concern, HASL offers an excellent balance of performance and price.

0.5oz Thickness Copper PCB

Hasl Surface Copper Printed Circuit Board

0.5oz-5oz Thickness Copper Printed Circuit Board With HASL Surface Finishing Images