摘要 |
The present invention is concerned with a capacitive device, and in particular a metallized film capacitor made of a capacitive base structure with series connected internal base capacitors (21,41,42,22), the structure being repeated any number of times by suitably winding or stacking. The capacitor comprises auxiliary intermediate electrodes (32,34) which on either side do face only one electrode (11,53,13) which is part of an adjacent conductive layer (1,5). The internal base capacitors have a larger active capacitor area than the internal base capacitors of a comparable capacitor of conventional design, and the problems due to misalignment of the conductive layers and deviations in active base capacitor area are reduced. Further, the auxiliary intermediate electrodes do not see large in-plane charging currents, and therefore can preferentially have a high sheet resistance and good self-healing properties. <IMAGE>
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