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Circuit Module With Piston-Like Device Cylindrically Interleaved With a Complementary Water Cooled Structure

IP.com Disclosure Number: IPCOM000037681D
Original Publication Date: 1989-May-01
Included in the Prior Art Database: 2005-Jan-29
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Eid, JC: AUTHOR [+2]

Abstract

Some circuit modules have a thin rectangular chip carrier, chips mounted in an array on the chip carrier, a metal supporting and cooling structure that includes connections to a chilled water supply, and a structure called a piston that releasably contacts a heat transfer surface of the chip and slidably contacts the supporting and cooling structure. For this description the module is oriented with the chip carrier horizontal and the chips on its upper surface.

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Circuit Module With Piston-Like Device Cylindrically Interleaved With a Complementary Water Cooled Structure

Some circuit modules have a thin rectangular chip carrier, chips mounted in an array on the chip carrier, a metal supporting and cooling structure that includes connections to a chilled water supply, and a structure called a piston that releasably contacts a heat transfer surface of the chip and slidably contacts the supporting and cooling structure. For this description the module is oriented with the chip carrier horizontal and the chips on its upper surface.

In this module, the piston has a sold base that contacts the chip, a thin cylindrical outer wall and a center post that extend upward nearly to the supporting and cooling. The piston has an annular gap between the post and the outer wall. A complementary upper cylindrical structure is attached to the supporting structure and extends downward into the annular gap between the post and the outer wall. The upper structure is hollow and is connected to a manifold that supplies cooling water. A spring is located between the top of the post and a surface of the upper structure to urge the piston against a chip.

The supporting and cooling structure has an upper inlet manifold and a lower outlet manifold. The upper structure is connected to the upper inlet manifold by means of a tube located along its axis. It is connected by the lower outlet manifold by a concentric tube that surrounds the inlet tube. In on...