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A fractal approach to electrolytic capacitors for implantable devices

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3 Author(s)
Bolz, A. ; Zentralinst. fur Biomed. Tech., Friedrich-Alexander Univ. of Erlangen-Nuremberg, Erlangen, Germany ; Brem, B. ; Schaldach, M.

Electrolytic capacitors for implantable devices need an improvement in respect to size and contact reliability. In the following a new design of dry tantalum capacitors will be presented using thin films with a fractal surface structure. The achieved capacities related to the projected substrate area are presently in the same range as for commercially available SMT-components, but the height of the devices is reduced to 1/5. Furthermore the reliability in respect to the contact is highly improved by using standard thick film technology.

Published in:

Engineering in Medicine and Biology Society, 1992 14th Annual International Conference of the IEEE  (Volume:3 )

Date of Conference:

Oct. 29 1992-Nov. 1 1992

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