The rapid pace of the electronic technology evolution compels a merger of technical areas such as low-power digital electronics, microwave power circuits, optoelectronics, etc., which collectively have become the foundation of today's electronic technology. The 1999 Workshop on Frontiers in Electronics gathered experts from academia, industry, and government agencies to review the recent exciting breakthroughs and their underlying physical mechanisms. The proceedings addresses controversial issues, provocative views, and visionary outlooks. Also included are discussions on the future trends, the directions of electronics technology and the market pulls, as well as the necessary policy and infrastructure changes.