Europen Union : FAQ

The definition of homogeneous materials has caused some confusion in the past, but has been clarified in draft guidelines published by the European Commission. A homogeneous material is a single substance such as a plastic, for example the PVC insulation on insulated copper wire. Components such as capacitors, transistors and semiconductor packages are not “materials” properly speaking, but will contain several different materials.

For example, a semiconductor package will contain at least six.