Patent ID: 6981543

Claim:
A capillary pump loop (CPL) cooling system, comprising: a first evaporator, adapted to be thermally coupled to a first semiconductor heat source, including a cavity in which a working fluid is evaporated from a liquid state into a vapor state and having a liquid inlet port to receive the working fluid in a liquid state and a vapor outlet port from which the working fluid exits the evaporator in a vapor state; a first wicking structure, having an input side to receive the working fluid in a liquid state and including a plurality of capillary channels to draw the working fluid into the evaporator through a capillary transport mechanism; a first condenser comprising a channeled base member having an external wall extending around a periphery thereof to which a cover plate is secured so as to define a sealed cavity, and further including a pair of internal walls, each internal wall including a portion disposed substantially adjacent to a portion of the external wall so as to define a capillary channel, said pair of internal walls dividing the sealed cavity into a condensing region and the capillary channels, a vapor inlet port to receive a working fluid in a vapor state operatively coupled to the sealed cavity, and a first liquid output port from which the working fluid exits the condenser, operatively coupled to an outlet ends of the capillary channels; a vapor transport line operatively coupling the vapor output port of the evaporator to the vapor inlet port of the condenser; and a liquid transport line operatively coupling the liquid output port of the condenser to the liquid inlet port of the evaporator.