Redundant heat sink module

A redundant apparatus for cooling a heat source, the redundant apparatus comprising:

• a thermally conductive base member configured to be placed in thermal communication with the heat source, the thermally conductive base member comprising a surface to be cooled;
• a redundant heat sink module mounted on the thermally conductive base member, the redundant heat sink module comprising:
• a first independent coolant pathway formed within the redundant heat sink module, the first independent coolant pathway comprising:
• a first inlet chamber;
• a first outlet chamber;
• and a first plurality of orifices configured to provide a first plurality of impinging jet streams of coolant against a first region of the surface to be cooled when pressurized coolant is provided to the first inlet chamber;
• and
• a second independent coolant pathway formed within the redundant heat sink module, the second independent coolant pathway comprising:
• a second inlet chamber;
• a second outlet chamber;
• and a second plurality of orifices configured to provide a second plurality of impinging jet streams of coolant against a second region of the surface to be cooled when pressurized coolant is provided to the second outlet chamber;
• and
• one or more sealing members disposed between a bottom surface of the redundant heat sink module and a surface of the thermally conductive base member to provide a first liquid-tight seal around a perimeter of the first outlet chamber and a second liquid-tight seal around a perimeter of the second outlet chamber, wherein the second region of the surface to be cooled circumscribes the first region of the surface to be cooled.

A redundant heat sink module for cooling a heat providing surface, the heat sink module comprising:

• a first independent coolant pathway, comprising:
• a first inlet chamber formed within the redundant heat sink module;
• a first outlet chamber formed within the redundant heat sink module, the first outlet chamber having a first open portion, the first open portion configured to be enclosed by the heat providing surface when the redundant heat sink module is sealed against the heat providing surface;
• and a first plurality of orifices extending from the first inlet chamber to the first outlet chamber;
• a second independent coolant pathway, comprising:
• a second inlet chamber formed within the redundant heat sink module;
• a second outlet chamber formed within the redundant heat sink module, the second outlet chamber having a second open portion, the second open portion configured to be enclosed by the heat providing surface when the redundant heat sink module is sealed against the heat providing surface;
• and a second plurality of orifices extending from the second inlet chamber to the second outlet chamber;
• and
• a plurality of anti-pooling orifices extending from the first inlet chamber to a rear wall of the first outlet chamber, the plurality of anti-pooling orifices configured to deliver a plurality of anti-pooling jet streams of coolant to a rear portion of the first outlet chamber when pressurized coolant is provided to the first inlet chamber.