This article presents three failure analysis case histories involving the use of silver in electrical applications. The first two failures, that of a relay and a trimming potentiometer, highlight the incompatibilities of silver and sulfur. The third failure, in which several surface-mount resistors had shorted, is attributed to silver’s susceptibility to electrolytic migration.

electrolytic migration, potentiometers, relays, resistors, silver, sulfur, tarnish
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Copyright © ASM International® 2001
2001
ASM International
Topics
Semiconductor wafer fabrication Resistors Silver Sulfur
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