Radiated immunity using EMC clips connected to a bottom housing

An apparatus for a motor vehicle comprising:

• an engine control unit (ECU) of the motor vehicle;
• and
• an electronic device that comprises:
• an electronically conductive housing that comprises a bottom portion of the housing;
• a printed circuit board (PCB) that comprises a top layer having circuitry, and a ground layer, wherein the PCB is located in the housing;
• an electronic ground component that is electronically connected to the bottom portion of the housing;
• at least one leg that extends through the PCB and fixes the PCB to the bottom portion of the housing;
• and
• a plurality of electromagnetic compatibility connectors that directly electronically connect the circuitry on the top layer to the bottom portion of the housing,
• wherein, at a noise frequency, when there is a noise current at a given location of the circuitry, a first noise impedance from the given location to the bottom portion of the housing through the plurality of electromagnetic compatibility connectors is less than a second noise impedance from the given location to other locations of the circuitry, and is less than a third noise impedance from the given location to the bottom portion of the housing through the at least one leg,
• wherein the electronic ground component is connected to the ECU.