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Base Plate Slidable on T-Bars Into Clamping Position on Cold Plate with Plastic Bumper Preventing Sliding Contact Between Heat Transfer Surfaces

IP.com Disclosure Number: IPCOM000037896D
Original Publication Date: 1989-Aug-01
Included in the Prior Art Database: 2005-Jan-30
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Goldfarb, SM: AUTHOR

Abstract

A metal base plate that supports semiconductor components is clamped to a cold plate that receives heat from the components. The surfaces of the base plate and the cold plate that contact are carefully machined for good heat transfer. The cold plate has bars with a T section and the base plate has corresponding grooves so that the base plate rides on the bars while it is being slid into position for clamping. A thin plastic bumper is mounted on the outer surface of the cross bar of the T shape at the end where the base plate first engages the bar. As the base plate is slid into position, the bumper contacts the inner surface of the groove in the base plate and lifts the base plate slightly off the cold plate to prevent a sliding contact between the heat transfer surfaces.

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Base Plate Slidable on T-Bars Into Clamping Position on Cold Plate with Plastic Bumper Preventing Sliding Contact Between Heat Transfer Surfaces

A metal base plate that supports semiconductor components is clamped to a cold plate that receives heat from the components. The surfaces of the base plate and the cold plate that contact are carefully machined for good heat transfer. The cold plate has bars with a T section and the base plate has corresponding grooves so that the base plate rides on the bars while it is being slid into position for clamping. A thin plastic bumper is mounted on the outer surface of the cross bar of the T shape at the end where the base plate first engages the bar. As the base plate is slid into position, the bumper contacts the inner surface of the groove in the base plate and lifts the base plate slightly off the cold plate to prevent a sliding contact between the heat transfer surfaces. A pocket for the bumper is formed at the end of the groove. As the base plate approaches its clamping position, the plastic bumper enters a pocket and the base plate drops into contact with the cold plate.

Disclosed anonymously.

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