Materials for High-Density Electronic Packaging and Interconnection

What is packaging? The subject of this report is commonly referred to as electronic packaging, but the term '"packaging" carries connotations that tend to trivialize the highly technical and critically important electronic context. Electronic packaging now goes well beyond physical protection and includes electric power distribution, signal transmission between integrated circuits, and, of growing importance, the removal of heat associated with the very high densities of circuit elements that are being achieved. Modern system performance is as much limited by these functions as by the operation of the integrated circuits.