Introducing Radian Thermal’s VaporCore

Vapor Chamber Technology and Wick Design

Vapor chamber technology is a highly efficient cooling system used in electronic devices and high-performance computing systems. Yet, not all vapor chambers are made equal. Several parameters can impact the effectiveness of a given vapor chamber, such as the vapor space, working fluid & fluid volume and the wick (capillary) structure, amongst others.

Radian Thermal Products specializes in the design and manufacture of vapor chambers tailored to their clients’ exacting needs where precise temperature control is required for the optimal performance for industrial, military or medical applications.

Radian Thermal has developed a high-performance wick VaporCore, which has proven to outperform typical sintered powder wicks, in some tests.

Figure 2 1 shows the working of a Heat Pipe and Vapor Chamber Figure 2 2 shows how heat spread with a cross section view of a Vapor Chamber

Not All Vapor Chambers Are Made Equal

There are several ways to create this wicking structure for vapor chambers, but the two popular methods for conventional VCs are via sintered copper powder or copper mesh. Each method has unique strengths, and choosing the right one depends on your application.

For high performance sintered powder wicks are superior and ideal for high density heat flux requirements while mesh wicks are better suited for moderate heat density requirements

Conclusive Testing

Each VC is physically identical, with just the internal structure differing; so, the same vapor chamber plate geometry and material (C1020 alloy), same methodology for determining the mass of working fluid and the same build process and machinery.

Download the White Paper on Radian’s VaporCore

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