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Alternate Anti-Freeze for Water-Based Micro-Channels

IP.com Disclosure Number: IPCOM000103391D
Publication Date: 2005-Mar-17
Document File: 2 page(s) / 111K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method that uses biochemicals (i.e. anti-freeze proteins or their chemical equivalents) as an anti-freeze for water-based micro-channels, for the cooling of microprocessors. Benefits include preventing the formation of large ice crystals.

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Alternate Anti-Freeze for Water-Based Micro-Channels

Disclosed is a method that uses biochemicals (i.e. anti-freeze proteins or their chemical equivalents) as an anti-freeze for water-based micro-channels, for the cooling of  microprocessors. Benefits include preventing the formation of large ice crystals.

Background

It is important, during shipping, that the micro-channels filled with water not break at -40oC.

To address this problem, a glycol-based anti-freeze is used; however, this anti-freeze reduces

thermal conductivity (i.e. reduces cooling benefits) and increases viscosity (which requires better pumping), thereby making it difficult to implement in micro-channels.

General Description

The disclosed method uses anti-freeze proteins, or analogous chemical compounds, to protect the integrity of the micro-channels while shipping at very low temperatures. The disclosed method presents two implementations:

§         Adding anti-freeze proteins to the water. This implementation adds proteins to the water to change the morphology of the ice crystals that form, so that the resulting volume change does not disrupt the micro-channels at very low temperatures[1] (see Figures 1).

§         Adding a thin film of amino acids. This implementation adds a thin film of amino acids representing the active regions of the AFP, which are synthesized and assembled onto the micro-channel surfaces for prevention of large ice crystals[2] (see Figure 2).

Advantages

The disclosed method reduces the freezing po...