Dielectric Aluminum Oxides: Nano-Structural Features and ...

cut edges, air-electrolyte interfaces and other damaged areas of aluminum capacitor anodes.
The formation of these plumes has been shown to depend upon voltage, current density and
the time of application of the current and represents a parasitic reaction in parallel with the
desirable formation of barrier oxide on these raw aluminum surfaces.
ACKNOWLEDGEMENTS
The authors would like to thank Hitachi – HTA for their assistance in the FIB and TEM
work for this study. In addition, the encouragement and appreciation of the management of
St. Jude Medical, Inc. has made this work possible.
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