Coolant-cooled heat sinks with internal thermally-conductive fins joined to the cover

An apparatus comprising:

• a coolant-cooled heat sink with a coolant-carrying compartment, the coolant-cooled heat sink comprising:
• a heat transfer base with a heat transfer surface to couple to a component to be cooled, the heat transfer base including a plurality of thermally-conductive fins extending into the coolant-carrying compartment from a surface of the heat transfer base opposite to the heat transfer surface;
• a cover sealed to the heat transfer base, the heat transfer base and cover defining, at least in part, the coolant-carrying compartment therebetween;
• at least one wicking element disposed in at least one groove in a surface at an interface of the cover and the plurality of thermally-conductive fins, the at least one groove overlying, at least in part, the plurality of thermally-conductive fins, the surface being an inner surface of the cover or an upper surface of the plurality of thermally-conductive fins;
• and
• a joining material contacting the at least one wicking element and residing, at least in part, within the at least one groove, the joining material joining the plurality of thermally-conductive fins to the cover.

An apparatus comprising:

• a heat-generating electronic component;
• a coolant-cooled heat sink comprising:
• a heat transfer base with a heat transfer surface coupled to the heat-generating electronic component, the heat transfer base including a plurality of thermally-conductive fins extending into a coolant-carrying compartment of the coolant-cooled heat sink, from a surface of the heat transfer base opposite to the heat transfer surface;
• a cover sealed to the heat transfer base, the heat transfer base and the cover defining, at least in part, the coolant-carrying compartment therebetween;
• at least one wicking element disposed in at least one groove in a surface at an interface of the cover and the plurality of thermally-conductive fins, the surface being an inner surface of the cover or an upper surface of the plurality of thermally-conductive fins, and the at least one groove overlying, at least in part, the plurality of thermally-conductive fins;
• and
• a joining material contacting at least one wicking element and residing, at least in part, within the at least one groove, the joining material joining the plurality of thermally-conductive fins to the cover.