Define the materials
The materials around the joint influence wetting and the appropriate process strategy. It is important to document pad finish, solder alloy if known and any restrictions on the assembly.
Evaluate localized heating
Laser heating can concentrate energy around the selected joint. The response of the actual part and fixture should be observed during controlled tests.
Inspect the sample
Visual appearance alone does not replace the customer’s quality requirement. A useful sample review sets out the required inspection method and the evidence expected for that application.
Avoid broad claims
The right conclusion from a sample test is specific: it explains the tested component, process conditions and observed result without presenting it as a guarantee for unrelated designs.
