Public evidence metadata ยท SEM-EVIDENCE-0012

HASL Finish on PWBs

This paper covers HASL finish on PWBs and fits the practical process side of the SEM Lab paper catalog. It belongs with the papers that help engineers evaluate assembly-related materials and process conditions before those conditions turn into field or manufacturing failures. The paper should be positioned as a useful reference for engineers dealing with solderability, surface-finish quality, and the effect of board finish condition on assembly results and longer-term reliability.

Evidence coverage

Failure modes

solderability degradationsurface-finish defects

Materials

HASLsolderprinted wiring board

Analytical methods

surface-finish evaluationsolderability assessment