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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.
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An improved assembly and method of use thereof for improving thermal conduction from semiconductor chips to the caps of modules is described.
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
67% of the total text.
Page 1 of 2
Conduction Cooled Module
An improved assembly and method of use thereof for improving thermal
conduction from semiconductor chips to the caps of modules is described.
As shown in exploded view in Fig. 1, the device includes a body member 10
formed of a heat-conducting material, such as beryllium copper, and has a
hemispherical depression forming a socket 12. A pin member 14 is provided
having a hemispherical head or ball 16 with a pair of legs 18 extending
therefrom. The legs 18 are resilient and extend slightly divergently. The legs are
bored, as at 20, to receive projection 22 extending from cap 24. An annular ring
member 26 completes the assembly, the ring being made of a material which at
room temperature is relatively rigid and inflexible, but at a low temperature, e.g., -
40 Degrees C, transforms to a plastic, pliant form. Nitinol is an example of such
To utilize the assembly, the components are first cooled to below the
transformation temperature of the ring 26, and the components are assembled as
shown in Fig. 2. The assembly in this cooled condition, with the legs of the pin
member 14 spread, allows the assembly to freely slide on the projection 22 in the
cap. Thus, the assembly under gravity will slide down with the face of the body
member 10 coming into contact with chip 28 mounted on substrate 30. The ball
and socket configuration of pin head 16 and socket 12 provides a gimballing
action to allow the body member 10 to nutate to any require...