Patent ID: 7471515

Claim:
An apparatus comprising: a microchannel structure having microchannels formed therein, said microchannels to transport a coolant and to be proximate to an integrated circuit to transfer heat from the integrated circuit to the coolant; and a plurality of walls coupled to the microchannel structure to define a manifold that is in communication with at least a plurality of said microchannels, said plurality of walls including a side wall, said side wall having a port therein, said port for allowing coolant to flow in a direction, said direction being one of: (a) into said manifold, and (b) out of said manifold; wherein: said port is a first port; said manifold is a first manifold that is in communication with a first subset of said microchannels that includes substantially half of said microchannels; said plurality of walls defines a second manifold adjacent said first manifold, said second manifold being in communication with all of said microchannels that are not included in said first subset of microchannels; and said side wall has a second port formed therein to allow coolant to flow into said second manifold; all of said microchannels being in the same plane.