Busbar with dielectric coating

An apparatus, comprising:

• a first busbar;
• a second busbar;
• a heat-generating electronic device mounted between a first side of the first busbar and a first side of the second busbar, the heat-generating electronic device being electrically and thermally coupled to both the first side of the first busbar and the first side of the second busbar;
• the first busbar including a first array of non-planar physical structures on a second side of the first busbar opposite the first side of the first busbar;
• a first dielectric coating on the first array of non-planar physical structures defining a first non-planar dielectric surface on the second side of the first busbar;
• the second busbar including a second array of non-planar physical structures on a second side of the second busbar opposite the first side of the second busbar;
• and
• a second dielectric coating on the second array of non-planar physical structures defining a second non-planar dielectric surface on the second side of the second busbar.

A device, comprising:

• a first heat-generating electronic device;
• a second heat-generating electronic device;
• a first fluid-cooled busbar apparatus including:
• a first busbar mounted to a first side of the first heat-generating electronic device, the first busbar including a first array of non-planar physical structures;
• a first dielectric coating on the first array of non-planar physical structures defining a first non-planar dielectric surface on the first busbar;
• and
• a first fluid chamber to receive a first cooling fluid, the first fluid chamber having an interior surface at least a portion of which is defined by the first non-planar dielectric surface on the first busbar;
• a second fluid-cooled busbar apparatus including:
• a second busbar including:
• a second busbar first portion mounted to a second side of the first heat-generating electronic device, the second busbar first portion including a second array of non-planar physical structures;
• a second dielectric coating on the second array of non-planar physical structures defining a second non-planar dielectric surface on the second busbar first portion;
• and
• a second busbar second portion mounted to a first side of the second heat-generating electronic device, the second busbar second portion including a third array of non-planar physical structures spaced apart from the second array of non-planar physical structures on the second busbar first portion;
• a third dielectric coating on the third array of non-planar physical structures defining a third non-planar dielectric surface on the second busbar second portion spaced apart from the second non-planar dielectric surface on the second busbar first portion;
• and
• a second fluid chamber between the second busbar first portion and second busbar second portion to receive a second cooling fluid, the second fluid chamber having an interior surface defined at least by the second non-planar dielectric surface on the second busbar first portion and the third non-planar dielectric surface on the second busbar second portion;
• a third fluid-cooled busbar apparatus including:
• a third busbar mounted to a second side of the second heat-generating electronic device, the third busbar including a fourth array of non-planar physical structures;
• a fourth dielectric coating on the fourth array of non-planar physical structures defining a fourth non-planar dielectric surface on the third busbar;
• and
• a third fluid chamber to receive a third cooling fluid, the third fluid chamber having an interior surface at least a portion of which is defined by the fourth non-planar dielectric surface on the third busbar.