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Concept Search - What can I type?
For a concept search, you can enter phrases, sentences, or full paragraphs in English. For example, copy and paste the abstract of a patent application or paragraphs from an article.
Concept search eliminates the need for complex Boolean syntax to inform retrieval. Our Semantic Gist engine uses advanced cognitive semantic analysis to extract the meaning of data. This reduces the chances of missing valuable information, that may result from traditional keyword searching.
This disclosure describes an apparatus for cooling memory DIMMs using extrusions and a wire spring clip. The spring clip is aligned with the air stream so that it will provide minimum obstruction of air flow.
English (United States)
This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately
58% of the total text.
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Apparatus for cooling memory DIMMs using extrusions, a separable hinge and a wire
Memory DIMMs have continued to pose a serious cooling challenge within our server
platforms. Memory bus speeds have consistently increased and are now closing in on
500 MHz. These increased bus speeds have continued to drive higher DRAM power
consumption. Furthermore, memory DIMMs are frequently located near a hot processor
in order to keep wire lengths short and improve bus timing. This close proximity often
means that the DIMMs will receive hot air from the processor module. To complicate
matters, the integrity of data stored on DRAM chips is strongly dependent on
temperature. If the DRAM temperature gets too high (above 75oC) then data may begin
to be lost. Lost data bits cause soft errors which can "avalanche" and eventually cause
a system crash.
To overcome this problem it is necessary to provide a heat sink for memory
DIMMs. While there are DIMM heat sinks available for purchase (see www.atacom.com
for example) they are expensive ($9.00 to $12.00 per DIMM).
The proposed heat sink solution shown below uses a pair of interlocking
extrusions and a single spring wire clip. As a result, the total cost (in volume) could be
as low as $1.50.
Aluminum can be extruded into complicated shapes. This concept uses a pair of
aluminum extrusions with profiles as shown in Figure 1. Each extrusion will have a soft
thin thermal interface material (Thermagon T-pli* or T-Form* for example)...