A heat spreader is a device that improves the distribution of heat.
Novel Concepts has developed and patented IsoSkin™, a thin planar superconducting heat spreader, also known as
or flat heat pipes.
IsoSkin has an effective thermal conductivity as high as 10,000 W/m*K.
As thin as 500 microns, these IsoSkin
can be used to replace the skin (outer shell) of portable electronics, often eliminating the need for
and fans. These thin flat IsoSkin heat pipes are also being used to dramatically improve
and cold plate performance, by reducing the thermal constriction resistance inherent in high power density applications such as microprocessors, solid state thermoelectric Peltier coolers, LEDs, and power semiconductors.
IsoSkin may exhibit variable thermal conductivity, having either a positive temperature coefficient (PTC), or a negative temperature coefficient (NTC). The variable thermal conductivity of these materials may range from 1 to 1,000's of W/m*K, and may have an order of magnitude (10X) change in thermal conductivity with as little as 20°C change. These variable thermal conductivity materials may be controlled by numerous independent variables including temperature, power, and force.
"Novel Concepts solved the engineering dichotomy associated with the wick structures used in traditional
), by inventing a capillary fluid structure separate from the heat transfer structure. By separating the fluid transport structure from the heat transfer structure, these separate structures may be independently optimized, instead of being mutually dependent." (Daniel Thomas, Chief Technology Officer)
The planar capillary in the IsoSkin
have such high liquid transport capacity, that additional internal heat transfer microstructures are not required for applications having power densities less than 20 watts per square centimeter.
As thin as a U.S. penny (1.5 millimeters), IsoSkin™ superconducting heat spreaders are capable of transferring over 250 watts, with a thermal conductivity
20 times greater than copper
, and 4 times greater than the highest purity diamond. IsoSkin is also 60% lighter than copper, facilitating current thinner and lighter design trends.
CLICK PICTURE FOR CLOSE UP AND TECHNICAL DETAILS
IsoSkin™ Superconducting Heat Spreader™
(based on 162mm x 162mm x 1.5mm sized unit)
(heated on one edge, cooled on opposing edge)