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This arrangement integrates the cold plate into the cap or housing of the module so as to improve the cooling performance while still providing for maintainability.
English (United States)
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Integrated Module Heat Exchanger
This arrangement integrates the cold plate into the cap or housing of the
module so as to improve the cooling performance while still providing for
The figure shows a module 10 containing chips 12 mounted to the substrate
14 by solder balls 16. The stud 18 for contacting the back of the chip for cooling
is fitted into a cylindrical recess 20 in the housing cold plate 22. The usual spring
15, located within the cylindrical opening 20 in the housing cold plate 22,
provides the force for loading the stud 18 against the chip 12.
The combination housing cold plate 22 contains a water inlet 24 at one end
and a water outlet 26 at the other end. Thus, the cooling water flows around the
outside of the cylindrical recesses 20 in the housing cold plate 22, providing the
cooling liquid as close to the studs 18 as possible, thereby providing a heat
transfer path having a smaller thermal resistance in comparison to a solid metal
housing backed by a cold plate. The cover plate 28 is removable, which allows
access for maintenance in the field should the cooling water chamber become
fouled or scaled.
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