Patent ID: 8739406

Claim:
A method of fabricating a cooling apparatus comprising: fabricating a vapor condenser, wherein fabricating the vapor condenser comprises: obtaining a three-dimensional folded structure defining, at least in part, a first set of coolant-carrying channels and a second set of vapor condensing channels of the vapor condenser, the first set of coolant-carrying channels being interleaved with and extending parallel to the second set of vapor condensing channels, wherein the three-dimensional folded structure comprises a thermally conductive sheet with multiple folds therein, wherein one side of the thermally conductive sheet comprises a vapor condensing surface, and an opposite side of the thermally conductive sheet comprises a coolant-cooled surface, at least a portion of the coolant-cooled surface at least partially defining the first set of coolant-carrying channels; disposing a first end manifold at a first end of the three-dimensional folded structure, and a second end manifold at a second, opposite end of the three-dimensional manifold structure, the first end manifold and the second end manifold comprising openings in fluid communication with the first set of coolant-carrying channels of the three-dimensional folded structure to facilitate flow of coolant through the first set of coolant-carrying channels; and coupling a plate to the coolant-cooled surface side of the thermally conductive sheet with the multiple folds, wherein the plate and the thermally conductive sheet with the multiple folds therein define the first set of coolant-carrying channels of the three-dimensional folded structure.