Patent ID: 7768772
Filing Date: 2010-08-03
Classification: A61N,H01G

Abstract:
1. An apparatus, comprising: a case including material defining first aperture sized for passage of a capacitor stack and a feedthrough hole, with the capacitor stack disposed in the case, the capacitor stack including one or more substantially planar electrode layers, with at least one substantially planar electrode layer having on a face an etched surface on one side of an border axis between a connection member and a remainder of the at least one substantially planar electrode layer, an unetched surface on an opposite side of the border axis, and a grade extending to the one side of the border axis and across to the opposite side of the border axis; a lid conforming to the first aperture and sealingly connected to the material defining the first aperture; a feedthrough assembly connected to the capacitor stack and passing through the feedthrough hole and sealingly connected to the material defining the feedthrough hole; and electrolyte disposed in the case; wherein the one or more substantially planar electrode layers are made by printing a curable resin mask onto the one or more substantially planar electrode layers and etching the layers, the curable resin mask defining the grade and adapted to resist etching.