Ceramic continues to be a popular material for hermetic and certain non-hermetic packages that need the following attributes;
good planarity, smoothness, extreme mechanical stability, high thermal conductivity, and excellent temperature stability.
Ceramic materials and processes continue to be more expensive than organic technology although cost-reducing processes
are still evolving. Ceramic is presently the favored platform for large CPUs and the preferred cavity type enclosure for
MEMS, MOEMS and some RF devices. But ceramic is being replaced by plastic materials wherever possible for cost
reduction and manufacturing simplicity.