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Method to attach/remove metallic TIM interfaces

IP.com Disclosure Number: IPCOM000010216D
Publication Date: 2002-Nov-06
Document File: 2 page(s) / 83K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method to attach/remove metallic thermal interface material (TIM) interfaces. Benefits include improved functionality, improved thermal performance, and improved performance.

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Method to attach/remove metallic TIM interfaces

 

Disclosed is a method to attach/remove metallic thermal interface material (TIM) interfaces. Benefits include improved functionality, improved thermal performance, and improved performance.

Background

              Lacking an efficient heat-transfer mechanism, the speed and power capabilities of electronic circuit modules are severely limited. The conventional solution uses phase-change materials (PCM) or grease as TIM. These materials provide thermal resistance that must be reduced and require very high pressures on the package. The pressures may affect the reliability of the package and/or the TIM.

              Conventionally, attaching and removing the metal interfaces to/from the heatsink base are difficult.

Description

              The disclosed method facilitates the application or removal of metal TIM. Using highly conductive metal thermal interfaces, thermal resistance can be significantly reduced. In addition, the retention mechanism may be eliminated, substantially lowering cost and increasing reliability.

              The disclosed method includes an apparatus. It is an electric heater element with crimped cooling fins attached to a tapered heatsink base (see Figures 1 and 2). Because the apparatus is attached to the heatsink base, users/OEMs can use it without any extra effort or training. The heat input can be controlled through a separate circuit, so that package reliability is not affected. This heater can be integrated int...