Manufacturing/Packaging 
When Pb-free meets FR4
Keywords: Pb-free FR4 delamination organic solder protectant conductive anodic filaments
[Summary of tips] Figure 1. High reflow temperatures can cause vertical stresses that can rupture copper barrel platings.Damaged copper barrel platingsThe same expansion in the z dimension that causes delaminations can also stretch copper barrel platings vertically. It's not uncommon for the barrel plating to break under these conditions. The b......Please login or register with us to view this article>>
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