Three-Dimensional Circuit Package With Water-Cooled Cold Plate and Pairs of Metal Fins Extending Between Facing Rows of Components
Original Publication Date: 1986-Jul-01
Included in the Prior Art Database: 2005-Mar-09
A circuit board carries parallel rows of circuit cards of low height that have one row of components mounted on each side, as is known. A water-cooled cold plate is mounted parallel to the board and perpendicular to the cards near the card edges that are remote from the circuit board. U-shaped pairs of metal fins are located between rows of cards with the bight or base of the U-shape thermally attached to the cold plate and with each of the fins positioned adjacent to the components on one of the cards. Thermal grease is placed between the components and the fins, and a mechanical cam or an inflatable pneumatic tube is located between each pair of fins and is operable when the circuit package has been assembled to hold the fins against the components for low thermal resistance.