US 6,981,543 B2
Modular capillary pumped loop cooling system
Jason B. Chesser, Hillsboro, Oreg. (US); Barrett M. Faneuf, Lakewood, Wash. (US); and Stephen W. Montgomery, Federal Way, Wash. (US)
Assigned to Intel Corporation, Santa Clara, Calif. (US)
Filed on Sep. 20, 2001, as Appl. No. 9/957,792.
Prior Publication US 2003/0051859 A1, Mar. 20, 2003
Int. Cl. F28D 15/00 (2006.01); F28F 7/00 (2006.01); H01K 7/20 (2006.01); H01L 23/34 (2006.01)
U.S. Cl. 165—104.26 29 Claims
OG exemplary drawing
 
1. 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.