ECO provides both rack and barrel plating
services for parts up to 13 feet in length for low and high volume orders.
We've seen thin spots in barrel plating
consumed by solder, permitting laminate to outgas and create giant voids inside joints that have good looking top- and bottom-side fillets.
Increasing the copper barrel plating
thickness can improve the survival and long-term reliability of PCBs that will undergo the higher soldering temperatures used with lead-free solders, and this increased thickness will need to be specified by the designer.
At Chalcon's Walsall base, the installation of a computer-controlled automated zinc barrel plating
line had been completed this month, on time and to budget.
Past studies focusing on copper dissolution during PTH solder fountain rework using a SAC-based alloy highlighted concerns over the ability to rework PTH connectors without significantly dissolving portions of the copper barrel plating
For SnPb, the typical callout for barrel plating
thickness was 18 to 30 [micro]m.
If the copper barrel plating
is not able to withstand this load, it can crack or tear.