The culmination of two years of development using Cambridge
Nanotherm's ceramic dielectric technology, Nanotherm MBPCB (Metal-Backed
Printed Circuit Board) is an innovative thermal management material
with a dielectric thermal conductivity of 7 W/mK.
This means the metal-backed PCB is able to
significantly reduce LED die temperatures, even in the most thermally
challenging luminaire designs. The company’s core IP is in its unique
process for converting Aluminium into Alumina (Al2O3), allowing the
surface of an Aluminium plate to be converted into a layer of Alumina as
thin as 10 micron, which acts as a dielectric. A range of standard PCB fabrication techniques can then be used to apply circuitry onto the nano-ceramic dielectric layer.
Independent testing of the Nanotherm MBPCB in LED lighting
applications has shown that it offers a 20% reduction in substrate
thermal resistance over some of the best available metal-backed PCBs. In
back-to-back comparison testing with other metal-backed PCBs, LED
temperatures were seen to be reduced by as much as 20°C, thus allowing
designers to increase component density and power or give longer
Visit Cambridge Nanotherm at www.camnano.com
This article originally appeared on EE Times Europe.