Failure Analysis of Capacitors
Multilayer Chip Capacitors (MLCCs), Tantalum Capacitors, Aluminum Electrolytic Capacitors, Film Capacitors
At SEM Lab, Inc. we have seen failures in four types of capacitors: Multilayer Chip Capacitors or MLCCs, Tantalum Capacitors, Aluminum Electrolytic Capacitors, and Film Capacitors. Some common failures are seen in the figures below. The failure mechanisms unique to each device are described in the figure captions.
More detail on failures in Film Capacitors can be found here.
Multilayer Chip Capacitor (MLCC)
Aluminum electrolytic capacitor