IR wavelength selective heat radiation sheet. Applying Metamaterial Technology. VSI
- Feature A wholenew heat dissipating method that selectively radiates the IR wavelength; successfully applying a metamaterial technology.
- Feature The surface with microcavities allows for enhancements of heat transfer, suppression of the heat confinement and also it successfully solves the heat spot occurrence in the resin case more effective.
■ A "Heat release sheet VSI" is...
The VSI sheet is able to dissipate the selected IR wavelength because of this metamaterial technology. VSI is a 150 µｍ thick aluminum sheet with periodic surface formed with "Microcavity" of a micron order scale in its length, width and depth.
■ Suggested use
Place a sheet of VSI on the whole heat source such as a CPU.
■ A heat dissipating effect of the VSI sheet
Inspect a heat dissipating effect when changing a heat releasing material of a smart phone from a graphite sheet to VSI.*The size of the graphite sheet available on the market and VSI is adjusted to 30 square millimeter each.
When a graphite sheet available on the market was replaced with a VSI sheet,
we found that both temperatures of the resin surface and the board dropped.
■ "The IR wavelength selective heat radiation" of VSI sheet is highly effective for the thermal dissipation purpose especially in the resin sealed area.
|Feature||Heat releasing image||
How it works
with the resin case
|Very Good Heat can be released outside of the resin case. ・The temperature on the heat source decreases. ・The heat accumulated spot on the heat generating source is eliminated. * The VSI is being effective for the 2 issues.|
|Poor The heat is just being diffused within the resin case.|
■ A principle of the wavelength selective heat radiation
When a sheet of VSI is placed on a heat source, the periodic surface structure on the VSI sheet selectively radiates the IR wavelength.
The released wavelength range does not overlap with that of the resin, so it suppresses heat.
■ Product lineup
●We accept custom size orders.
■ How to order
If you would like to place an order, we will introduce you a distributor.
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