Patent ID: 9606589
Date: 2017-03-28
CPC Classifications: F28D,G06F,H05K

Claim:
1. A circuit board assembly comprising: an expansion card including a first side and a second side; a first set of semiconductor packages coupled to the first side of the expansion card; a metallic duct coupled to the first side of the expansion card, the metallic duct including one or more flange surfaces having a direct thermal connection with one or more of the first set of semiconductor packages; a second set of semiconductor packages coupled to the second side of the expansion card; a first heat pipe coupled to the first side of the expansion card, the first heat pipe having a direct thermal connection with the flange surface; a secondary plate coupled to the second side of the expansion card, the secondary plate having a direct thermal connection with one or more of the second set of semiconductor packages; and a second heat pipe coupled to the second side of the expansion card, the second heat pipe having a direct thermal connection with the secondary plate, wherein the expansion card includes surfaces defining a pipe opening, and wherein the first and second heat pipes contact one another through the pipe opening.