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Method for an FBDIMM high-force heat spreader

IP.com Disclosure Number: IPCOM000132598D
Publication Date: 2005-Dec-23
Document File: 3 page(s) / 484K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for a fully buffered dual in-line memory module (FBDIMM) high-force heat spreader. Benefits include improved functionality, improved performance, improved thermal performance, improved reliability, and improved throughput.

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Method for an FBDIMM high-force heat spreader

 

Disclosed is a method for a fully buffered dual in-line memory module (FBDIMM) high-force heat spreader. Benefits include improved functionality, improved performance, improved thermal performance, improved reliability, and improved throughput.

Background

              Detailed computational fluid dynamics (CFD) simulation indicates that optimized thermal performance is achieved when contact is maintained between the a heat spreader, an advanced memory buffer (AMB), and a dynamic random access memory (DRAM) module.

              Conventionally, FBDIMM cooling is a bottleneck in the improvement of overall system performance.

Description

              The disclosed method is a high-force heat spreader for use with an FBDIMM. The method includes two U-shaped clips that generate a relatively high clamping force to maintain close contact between the heat spreaders, the AMB, and the DRAM modules (see Figure 1).

              Four long and narrow protrusions on each of the heat spreaders and the clip locate the clip and apply force at the correct location (see Figure 2).

              The curled front edges of the clips insure a line load at the correct location on the heat spreaders. The high clamping force is balanced by features on the heat spreaders and clips to enable easy installation (see Figure 3).

              The ramp feature spreads the clip open during insertion over the heat spreader, reducing the force required by the installer’s fingers. The curled front edges enable the clip to easily engage and slide over the...