The effectiveness with which an electronic system performs its electrical functions, as well as the reliability and cost of the system, are strongly determined not only by the electrical design, but also by the packaging materials. Electronic packaging refers to the enclosure for integrated circuit (IC) chips, passive devices, the fabrication of circuit cards and the production of a final product or system. This book provides material information based on electronic packaging architectures, including semiconductor materials, materials used to interconnect and package the device, interconnection materials for component attachment to a substrate, materials used to fabricate a printed wiring board, and the interconnections and hardware required to realize an electronics system; reviews critical electrical, thermal, mechanical, and chemical properties of all the electronic packaging materials; and identifies and presents quality and reliability issues associated with electronic packaging materials.