sn plated discoloration after bake - SMT Electronics Manufacturing

Electronics Forum: sn plated discoloration after bake (Page 1 of 1)

discolored pbfree finish after bake and/or reflow

Electronics Forum | Thu Apr 20 22:14:51 EDT 2006 | raquel

hello! need ur inputs... if the Matte Sn pbfree finish of the component discolors AFTER having been exposed to bake, or, after reflow, will the base leadframe have any potential contribution to it? i know most likely suspects would be the plating pro

Part of PCB silkscreen turns yellow brownish

Electronics Forum | Thu Aug 28 23:15:44 EDT 2014 | phyllishwl

Hi all, Our production reported that they found 3 panels out of 53 panels with strange phenomenon after reflow. 1/ Blister / Delamination of PCB panels, 2pcs blister/delamination under solder mask, 1pc under Gold plating at Gold finger 2/ Silkscr

sn plated discoloration after bake searches for Companies, Equipment, Machines, Suppliers & Information

sn plated discoloration after bake
yellow discoloration gold plated board after second re-flow process
black discoloration after smt
components discolored after cleaning

connector discoloration after reflow
discoloration after selective solder
discoloration pcba after reflow
discoloration pcb after reflow

2 sn plated discoloration after bake results

Electronics Forum: sn plated discoloration after bake (Page 1 of 1)

discolored pbfree finish after bake and/or reflow

Part of PCB silkscreen turns yellow brownish

sn plated discoloration after bake searches for Companies, Equipment, Machines, Suppliers & Information