Circuit packaging and cooling

• US 4,037,270 A
• Filed: 05/24/1976
• Issued: 07/19/1977
• Est. Priority Date: 05/24/1976
• Status: Expired due to Term

• Current Assignee: Control Data Corporation (Ceridian HCM Holding, Inc.)
• Original Assignee: Control Data Corporation (Ceridian HCM Holding, Inc.)
• Inventors: Carlson, Douglas M., Paulson, Roger A., Vacca, Anthony A., Offerdahl, Richard E., Marquardt, Warren B., Ahmann, Gerald L.
• Primary Examiner(s): Tolin, Gerald P.
• Application Number:
  US05/689,215
• Time in Patent Office: 421 Days
• Field of Search: 357/82, 361/382, 361/385, 361/388, 174/52 FP
• US Class Current: 361/689
• CPC Class Codes: H01L 23/4093 Snap-on arrangements, e.g. clips
• CPC Class Codes: H01L 23/473 by flowing liquids H01L23/4332, H01L23/4338 take precedence
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Abstract

A circuit board is provided with a plurality of groups of connectors, so disposed and arranged in respect to each other that each group is capable of receiving a chip carrier. A fluid conduit, carrying a coolant, extends through each group so that when the contacts of a chip carrier are assembled to a group of connectors, a circuit chip, having a heat dissipating bar, is in close contact with the conduit. Conductors on each chip make electrical contact to the contacts on the chip carrier. A clip fastener is fastened to the carrier and includes bias means to bias the chip so that electrical connection is established between the chip contacts and the carrier contacts and thermal connection is established between the heat dissipating bar and the conduit.

Claims

1. A circuit assemblage comprising, in combination:

a circuit board;

a plurality of groups of electrical connectors supported on said circuit board;

fluid conduit means supported on a surface of said board and extending through each of said groups of connectors, said conduit means being constructed of a thermally conductive material and being adapted to carry a coolant;

a plurality of carrier means each supporting a plurality of electrical contacts, each of electrical contacts of each of said carrier means being assembled to respective connectors of respective groups of connectors so that each of said carrier means is juxtapositioned to the portion of said conduit means extending through the respective group of connectors;

a plurality integrated circuit means, each supported by a respective one of said carrier means, said circuit means each including a plurality of electrical contacts so disposed on arranged as to establish electrical connection to individual contacts of the respective carrier means, said circuit means further including a heat dissipating bar disposed and arranged as to establish thermal contact to the respective portion of said conduit means; and

fastener means fastened to each of said carrier means, said fastener means including bias means for biasing the respective circuit means so that the respective heat dissipating bar bears against the respective portion of said conduit means, and the respective contacts on said circuit means bears against respective contacts on the carrier means.

2. Apparatus according to claim 1 including a plurality of nodule means on each of said carrier means, said fastener means including resilient areas disposed and arranged to engage said nodule means to thereby fasten said fastener means to said carrier means.

3. Apparatus according to claim 2 further including slot means in said fastener means to permit insertion of a tool to separate said arms from said nodule means.

4. Apparatus according to claim 3 wherein said bias means comprises leaf spring means formed from a portion of said fastener means.

5. Apparatus according to claim 2 wherein said bias means comprises leaf spring means formed from a portion of said fastener means.

6. Apparatus according to claim 1 wherein said bias means comprises leaf spring means formed from a portion of said fastener means.

7. Apparatus according to claim 1 further including a resistive layer imbedded in said circuit board for line termination of signals carried by selected ones of said connectors.

8. Apparatus according to claim 7 further including a second plurality of groups of connectors on said circuit board, each connector of said second plurality of groups of connectors being electrically connected through said circuit board to a selected connector of said first-named plurality of groups of connectors, said second plurality of groups of connectors being exposed to the surface of said circuit board opposite the surface to which said fluid conduit means is supported, whereby electrical interconnections between said circuit means may be established by electrical convertion between selected ones of said connectors of said second plurality of groups of connectors.

9. Apparatus according to 8 further including a plurality of nodule means on each of said carrier means, said fastener means including resilient areas disposed and arranged to engage said nodule means to thereby fasten said fastener means to said carrier means.

10. Apparatus according to claim 9 further including slot means in said fastener means to permit insertion of a tool to separate said arms from said nodule means.

11. Apparatus according to claim 10 wherein said bias means comprises leaf spring means formed from a portion of said fastener means.