TCM-Like Device with Multiple Hats on Common Chip Carrier and Components Mounted on Opposite Side of Chip Carrier
Original Publication Date: 1987-Apr-01
Included in the Prior Art Database: 2005-Feb-02
Semiconductor chips are mounted on a chip carrier in four quadrants, each the size for a TCM hat. A conventional TCM hat is bolted to a chip carrier to form an enclosure for the chips, and it carries metal pistons that contact the chips and conduct heat from the chips to a heat exchanger that is associated with the hat. This multiple hat chip carrier has peripheral holes for the bolts for two edges of each hat and it has a corresponding pattern of holes for bolts for the hat edges away from the periphery of the chip carrier. Wiring patterns are formed in the space between the bolt holes for interconnecting chips in different quadrants. Circuit cards and other components are mounted on the reverse side of the chip carrier.