Ceramic coated flow channels for electrical isolation and thermal transfer

An apparatus, comprising:

• a power electronic device;
• a cold plate connected to the power electronic device, the cold plate comprising:
• a first outer surface;
• a first face wall formed on the first outer surface;
• an inner portion formed by the first outer surface;
• and
• a flow channel formed within the inner portion, the flow channel comprising:
• an inlet aperture;
• and
• an outlet aperture,
• wherein each of the inlet and the outlet apertures are formed in the first face wall, and
• wherein the flow channel extends between the inlet aperture and the outlet aperture, and is structured to circulate liquid coolant;
• an isolating manifold constructed of an insulating material, comprising:
• a second outer surface, comprising:
• a second face wall formed on the second outer surface;
• and
• a third face wall formed on the second outer surface opposite the second face wall,
• wherein the second face wall is aligned with and oriented toward the first face wall;
• a first aperture formed in the third face wall extending through the second face wall and aligned with the inlet aperture of the cold plate;
• and
• a second aperture formed in the third face wall extending through the second face wall and aligned with the outlet aperture of the cold plate;
• and
• a ceramic coating formed on one or both surfaces of the first face wall and the second face wall to join together the cold plate and the isolating manifold, and a surface of the flow channel.