Printed Circuit Boards for Lighting
The choice of a good material for a printed circuit board for applications in the lighting sector, is generally a compromise between cost and performance.
LED technology is a highly efficient light source, however, the thermal loss is a design problem that needs to be taken into account to ensure correct functioning by making possible optimal dissipation conditions.
The thermal power per unit area is increasing with the progress in miniaturization, then more and more heat must be managed on a small surface.
The management of power and therefore of the corresponding material is a choice of considerable importance to optimize system performance.
Among the main parameters that are used for the assessment and selection of materials they are:
- Signal integrity
- Noise immunity
- Heat dissipation
In lighting are used primarily printed circuit boards in aluminum IMS (IMS – insulated Metal substrates) , which they are constituted by a metal base plate covered with a thin dielectric layer and in this case instead of the usual base material for the printed circuit, is used aluminum as the carrier for copper.