Ground electrical path from an MLCC filter capacitor on an AIMD circuit board to the ferrule of a hermetic feedthrough

A ground path for an EMI/energy dissipating filter assembly for an active implantable medical device (AIMD), the ground path comprising:

• a) an electrically conductive ferrule comprising a ferrule opening, wherein at least one conductive ground pin is electrically and mechanically connected to the ferrule, and wherein the ferrule is configured to be attachable to an opening in a housing for the AIMD;
• b) an insulator hermetically sealed to the ferrule in the ferrule opening, and wherein at least one insulator passageway extends through the insulator;
• c) a conductive active lead wire hermetically sealed in the at least one insulator passageway;
• d) a circuit board residing adjacent to the insulator, wherein at least one circuit board ground plate is disposed on or within the circuit board;
• e) a filter capacitor disposed on or adjacent to the circuit board, the filter capacitor comprising a filter capacitor dielectric supporting at least one active electrode plate interleaved in a capacitive relationship with at least one ground electrode plate, wherein an active metallization is electrically connected to the at least one active electrode plate, and a ground metallization is electrically connected to the at least one ground electrode plate;
• f) a ground electrical path extending from the ground metallization electrically connected to the at least one ground electrode plate of the filter capacitor, through the at least one circuit board ground plate, and to the at least one ground pin connected to the ferrule;
• and
• g) an active electrical path extending from the active lead wire to the active metallization electrically connected to the at least one active electrode plate of the filter capacitor.