andyyau
Junior Member level 2
Hello,
I have some problems for chip capacitors. Currently we are using some "quality" chip capacitors, such as Kemet and Phycomp (Ex philips). But I find them easily short circuit after wave soldering. Especially if the pcb is placed at high humidity environment.
The problem seems to be caused by not enough acid cleaning from the capacitors. Is there anyone know how to test the degree of cleaning from the capacitors? Is this related to insulation resistance of the capacitor surface?
Please help!
Andy
I have some problems for chip capacitors. Currently we are using some "quality" chip capacitors, such as Kemet and Phycomp (Ex philips). But I find them easily short circuit after wave soldering. Especially if the pcb is placed at high humidity environment.
The problem seems to be caused by not enough acid cleaning from the capacitors. Is there anyone know how to test the degree of cleaning from the capacitors? Is this related to insulation resistance of the capacitor surface?
Please help!
Andy
