IP Library Granted Patent US 9,013,869
Granted Patent B2
US 9,013,869 · App. 14/145,584 · Granted Apr 21, 2015

Consolidated thermal module

Inventors: Brett W. Degner (Menlo Park, CA); Gregory Tice (Los Altos, CA)
Assignee: Apple Inc.
G06F1/20H01L23/4006H01L23/473H05K3/301H05K7/20254H05K2201/064H05K2201/10265H05K2201/10325H05K2201/10393H05K2201/10704H05K2203/0278H01L23/427H05K7/12H05K7/20H01L2924/0002
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Quick Facts
Patent No.
US 9,013,869
App. No.
14/145,584
Granted
Apr 21, 2015
Kind
B2
Abstract

A low profile heat removal system suitable for removing excess heat generated by an integrated circuit operating in a compact computing environment is disclosed.

Claims (32)

1. A consolidated thermal module (CTM) used to secure an integrated circuit (IC) to a socket disposed on a first surface of a printed circuit board (PCB) and to maintain the IC in thermal contact with a heat removal assembly comprising:

a stiffener plate disposed on a second surface of the PCB;

a retaining mechanism disposed on the stiffener plate; and

at least one fastener used to secure the heat removal assembly to the stiffener plate and the retaining mechanism, wherein the retaining mechanism evenly distributes a retaining force across the stiffener plate that maintains the IC in uniform electrical contact with electrical contacts within the socket and maintains the IC in thermal contact with the heat removal assembly.

2. The CTM as recited in claim 1 , further comprising a socket between the heat removal assembly and retaining mechanism.

3. The CTM as recited in claim 2 , wherein the socket engages the IC and the PCB.

4. The CTM as recited in claim 1 , wherein the heat removal assembly comprises a heat transfer conduit capable of transporting heat from the IC.

5. The CTM as recited in claim 1 , further comprising a thermally conductive casting engaged with the PCB and the heat removal assembly.

6. The CTM as recited in claim 5 , wherein the retaining mechanism includes a plurality of fastener attachments points, and wherein the plurality of fastener attachment points attach to the thermally conductive casting through the PCB.

7. The CTM as recited in claim 6 , wherein the plurality of fastener attachment points includes a first fastener attachment point, the first fastener attachment point positioned on a first extension of the retaining mechanism, the first extension capable of bending with respect to the retaining mechanism.

8. The CTM as recited in claim 7 , wherein the IC is positioned proximate to a first surface of the PCB and the retaining mechanism is positioned proximate to a second surface of the PCB, the second surface opposite the first surface.

9. The CTM as recited in claim 1 , wherein the retaining mechanism bends in at least four separate portions.

10. A computing device, comprising:

a heat transfer assembly having a thermal transport positioned on a first portion of a printed circuit board, the thermal transport engaged with an integrated circuit;

a spring element positioned on a second portion of the printed circuit board opposite the first portion, the spring element having a first attachment point, wherein the spring element bends at the first attachment point to exert a force on a plate such that the plate is maintained in contact with the printed circuit board;

wherein the force from the spring element maintains the integrated circuit in thermal contact with the heat transfer assembly; and

wherein the force from the thermal transport maintains the integrated circuit seated in electrical contact with the printed circuit board.

11. The computing device as recited in claim 10 , wherein the force from the spring element maintains the integrated circuit in electrical contact with the printed circuit board.

12. The computing device as recited in claim 11 , wherein the plate provides a uniform force on the printed circuit board.

13. The computing device as recited in 10 , wherein the spring element includes a plurality of extensions and a plurality of fastener attachment points.

14. The computing device as recited in 13 , wherein the plurality of extensions bend with respect to a central portion of the spring element.

15. The computing device as recited in claim 13 , wherein the plurality of fastener attachment points engage the thermal transport.

16. A consolidated thermal module (CTM) for securing and cooling an integrated circuit (IC) mounted to a printed circuit board (PCB), comprising:

a heat removal assembly disposed on a first surface of the PCB and in thermal contact with the IC, comprising:

a thermally conductive casting; and

a heat transfer conduit capable of transporting heat from the IC;

a plate disposed on a second surface of the PCB, the second surface opposite the first surface; and

a retaining mechanism disposed on a portion of the plate, wherein the retaining mechanism secures the thermally conductive casting and the plate to the PCB by evenly distributing a retaining force across the plate, the retaining force capable of maintaining the IC in thermal contact with the heat transfer conduit.

17. The CTM as recited in claim 16 , wherein the thermally conductive casting provides a force capable of maintaining the IC in electrical contact with the PCB.

18. The CTM as recited in claim 16 , wherein the retaining mechanism is a spring.

19. The CTM as recited in claim 18 , wherein the spring comprises a first portion and a second portion, the first portion bending to form a first non-linear portion of the spring, the second portion bending to create a second non-linear portion of the spring element.

20. The CTM as recited in claim 16 , wherein the plate provides a uniform force on the printed circuit board.

Continuity (3)
Continuation 13223224 · Aug 31, 2011
Provisional Application 61503512 · Jun 30, 2011
Related Publication 20140211415A1 · Jul 31, 2014