Patent ID: 6431260
Filing Date: 2002-08-13
Classification: F28D,H01L,Y10S

Abstract:
A cooling assembly for an electronic module, said cooling assembly comprising:a thermally conductive cavity plate having a first main surface and a second main surface with at least one blind hole formed in said second main surface extending towards said first main surface, wherein each blind hole has a lower surface and a side surface, said lower surface and said side surface connecting at a non-orthogonal angle to facilitate the flow of fluid therealong; at least one jet nozzle, each jet nozzle being sized to reside within a respective blind hole of said at least one blind hole in said cavity plate, wherein fluid introduced into said cavity plate through a jet nozzle of said at least one jet nozzle impinges upon lower surface of said respective blind hole and flows outward through a space defined between said side surface of said blind hole and a side surface of said jet nozzle, wherein said non-orthogonal angle between said lower surface and said side surface of said blind hole facilitates fluid flow, after impinging upon said lower surface, outward through said space defined between said side surface of said blind hole and said side surface of said jet nozzle; wherein each said jet nozzle includes radially extending pedestals which are sized to physically contact said side surface of said respective blind hole when said jet nozzle is disposed therein, wherein said radially extending pedestals define said space between said side surface of said blind hole and said side surface of said jet nozzle; wherein for each said jet nozzle, said radial pedestals extend at least partially longitudinally along said jet nozzle within a region of said jet nozzle disposed within said respective blind hole; and wherein said side surface of said at least one blind hole has inwardly extending fins and said side surface of said respective jet nozzle has outwardly extending fins, and wherein said inwardly extending fins of said blind hole interdigitate with said outwardly extending fins of said net nozzle, with said for removing fluid comprising a gap between said interdigitated fins.