Patent ID: 9214408
Filing Date: 2015-12-15
Classification: H01L

Abstract:
1. A fluid cooled high-density composite focal plane array (CFPA) assembly, comprising: a high density CFPA including a plurality of imaging dies mounted on a front surface of a printed wiring board (PWB), wherein the high density CFPA further comprises a plurality of signal lines routed through the thickness of the PWB to a back surface that is disposed across from the mounted front side of the plurality of imaging dies; a base plate having a substantially matched coefficient of thermal expansion (CTE) to that of the high density CFPA, wherein the high density CFPA is disposed on a front side of the base plate, wherein the base plate further having a plurality of integral serpentine fluid flow channels and configured to receive and circulate fluid and further configured such that the heat generated by the CFPA is transferred via conduction into the base plate and to the integral serpentine fluid flow channels and to the circulating fluid to dissipate the generated heat, and wherein the base plate having a plurality of signal exit channels configured to route the plurality of signal lines coming through the thickness of the PWB and the back surface of the PWB; a fluid circulation pump configured to pump the fluid into the plurality of serpentine fluid flow channels; and a fluid-to-metal-to-air heat exchanger configured to receive the fluid from the plurality of integral serpentine fluid flow channels and to dissipate the heat.