Patent ID: 7948757

Claim:
A method of fabricating a cooled electronic module comprising: providing a substrate with at least one electronic device coupled to a surface of the substrate, the at least one electronic device comprising or coupled to a surface to be cooled; and providing a cooling system for cooling the at least one electronic device, wherein providing the cooling system comprises: coupling a multi-fluid manifold structure to the substrate to define a chamber within which the surface to be cooled is disposed, wherein the multi-fluid manifold structure comprises a first fluid inlet orifice and a second fluid inlet orifice disposed for concurrently, separately injecting a first fluid stream and a second fluid stream towards the surface to be cooled; and wherein in operation, the first fluid stream is a jet stream, remaining a coherent stream until impinging on the surface to be cooled, and the second fluid stream surrounds the first fluid stream, the first fluid and the second fluid being immiscible, and the first fluid having a lower boiling point temperature than the second fluid, and wherein the cooling system cools the surface to be cooled via, in part, the first fluid boiling upon impinging on the surface to be cooled, with evolving first fluid vapor condensing by direct contact with the second fluid stream of higher boiling point temperature.