Hi-rel manufacturing for thermal-core PCB technology

November 24, 2016 // By Graham Prophet
Thermal management specialist Cambridge Nanotherm has introduced a “Six Sigma” PCB fabrication route with partner Elvia PCB Group which the two companies say opens up the “Nanotherm LC” board construction to aerospace and automotive industries.

Aimed at the most demanding and heavily regulated industries, applying the Six Sigma process ensures 99.99966% of all steps to produce a part are statistically free of defects; or in other words only 3.4 are defective per million. This focus on quality assurance has enabled Elvia to achieve some of the highest quality accreditation and approvals available, including the automotive standard ISO/TS 16949.


The Six Sigma manufacturing route sits alongside Nanotherm’s existing PCB fabrication options which include fast prototyping, quick turnaround, speciality manufacturing, high-volume production lines, and thin-film semiconductor options for Nanotherm DM. Nanotherm works closely with customers to identify the most suitable manufacturing route to market for their particular product.


Nanotherm LC substrate material has a construction that claims the highest thermal performance for a Metal Core Printed Circuit Board (MCPCB). A patented process converts the surface of aluminium to an extremely thin ceramic dielectric layer with high thermal conductivity. The Nanoceramic dielectric thickness can be precisely controlled and applied as thin as 10 μm – many times thinner than conventional dielectrics. The combination of the thinnest dielectric layer with the highest conductivity yields the lowest thermal resistance of any MCPCB material.


Elvia PCB Group carries numerous quality approvals and certifications including ESA (2015), NADCAP, ISO 9001, ISO 1400 and ISO/TS 16949. Nanotherm LC material processed at Elvia carries full UL Recognition.


Elvia opens up Nanotherm LC to customers where quality is paramount and in high reliability sectors where only a handful of specialised PCB manufacturers operate. Nanotherm LC is, says the company, an ideal material for thermally challenging LED applications, such as automotive headlights and daytime running lights, where the inability to remove excess heat can mean manufacturers are forced to derate designs or use expensive alternative materials.


Cambridge Nanotherm; www.camnano.com


Elvia; www.pcb-elvia.com