In 1991 this author published a monograph[l] based on his experience
teaching microwave hybrid materials and processing technology at the
annual ISHM (now the International Microelectronics and Packaging
Society, IMAPS) symposia. Since that time, the course has been presented
at that venue and on-site at a number of industrial and government
organizations. The course has been continually revised to reflect the
many evolutionary changes in materials and processes. Microwave
technology has existed for almost 175 years. It was only after the
invention of the klystron, just before World War II, that microwave
design and manufacture moved from a few visionaries to the growth the
industry sees today. Over the last decade alone there have been
exploding applications for all types of high frequency electronics in
the miltary, automotive, wireless, computer, telecommunications and
medical industries. These have placed demands, unimaginable a decade
ago, on designs, materials, processes and equipment to meet the ever
expanding requirements for increasingly reliable, smaller, faster and
lower cost circuits.