Cooling structure for electronic boards

A manifold assembly, comprising:

• a frame assembly comprising a frame having a plurality of openings, a plurality of sealed compartments, a bottom plate and a plate sealed to sidewalls of the bottom plate, the bottom plate having a top side and a bottom side, and the bottom side having a plurality of grooves which accommodate sidewalls of the openings of the frame;
• a fluid channel within the frame assembly;
• and
• an inlet and an outlet associated with the sealed compartments and in fluid communication with the fluid channel, the inlet and the outlet directing coolant within the sealed compartments;
• a circuit board below the frame assembly;
• a chip or package mounted to the circuit board;
• and
• a heat sink within each sealed compartment of the sealed compartments and registered to the chip or package,
• wherein the heat sink is mounted to the chip or package by a thermal interface material (TIM), and
• wherein the openings of the frame include a stepped portion to mount the heat sink.

A manifold assembly, comprising:

• a frame assembly having a plurality of sealed compartments each comprising a heat sink within each sealed compartment of the sealed compartments and registered to an underlying chip or package mounted on an electronic board, the heat sink being mounted to the electronic board below the frame assembly by a thermal interface material (TIM);
• and
• an inlet and an outlet associated with each of the sealed compartments directing coolant over the heat sink of each of the sealed compartments,
• wherein the frame assembly includes:
• a plurality of openings in a frame, which include a stepped portion to mount the heat sink,
• a cold plate assembly sealed to sidewalls of openings of a bottom plate, and
• the cold plate assembly seals each of the plurality of openings and forms a sealed compartment in combination with the sidewalls of the openings and the heat sink mounted within each of the plurality of openings,
• wherein the cold plate assembly comprises:
• a top plate member,
• a bottom plate member having a top side and a bottom side, and
• the bottom side having a plurality of grooves which accommodate the sidewalls of the openings of the frame.