A filter feedthrough for an AIMD includes ferrule with an insulator hermetically sealing a ferrule opening, both cooperatively separating a body fluid side from a device side. A first conductive pathway is hermetically sealed to and disposed through the insulator. A feedthrough capacitor is disposed on the device side and includes at least one active electrode plate disposed parallel and spaced from at least one ground electrode plate within a capacitor dielectric. A capacitor active metallization is electrically connected to the active electrode plate and is in non-electrically conductive relation with the ground electrode plate. A capacitor ground metallization is electrically connected to the ground electrode plate and is in non-electrically conductive relation with the active electrode plate. An anisotropic conductive layer is disposed on the device side. The anisotropic conductive layer electrically connects the capacitor active metallization to the first conductive pathway.