Advanced Ceramic Structures and Materials for High-Reliability Millimeter-Wave Applications
Semiconductor device speeds and circuit operating frequencies have increased substantially over the past decade. Although millimeter-wave technology has been around for over 100 years, it is only within the past 5–10 years that increased demand for millimeter-wave commercial products and services has driven the development of new electronic package designs, low-loss materials, and the transformation of passive components to integrated and smaller geometries. High-reliability applications have employed millimeter-waves for several decades, but typically utilized heavy materials and distributed architectures. The transition of high-reliability millimeter-wave applications to new materials such as low-temperature co-fired ceramics requires innovative package designs to achieve comparable or better electrical performance in a much smaller form factor. Ceramic packaging technology continues to meet or exceed the performance requirements of high-reliability millimeter-wave applications with a broadened portfolio of material sets and innovative internal circuit components such as filter banks, antennas, and waveguides. Today's ceramic package design techniques and materials for applications within current and future high-reliability millimeter-wave markets will be discussed.