Abstract
AbstractThe need for electronics to operate at temperatures of 200°C and above continues to grow. These applications include avionics, aerospace, automotive, downhole drilling, mining, and many others. To satisfy this demand, a significant amount of research and development has been conducted. Despite the efforts, the number of new electronic components designed specifically for high‐temperature operation is still relatively limited. In Low Temperature Co‐fired Ceramic (LTCC) packages, LTCC materials are generally used as the host media for a number of pre‐fabricated semiconductor components. As a result, reliability of the entire LTCC package largely depends on the performance of the least robust component. Ferro A6M‐E and Ferro L8 are the two well‐established and recognized LTCC dielectrics widely used for mid and high frequency LTCC applications, including several high reliability aerospace and defense applications that require demanding Mil‐Spec qualifications. This study is our first attempt to characterize and understand basic high‐temperature dielectric properties of these two commercial LTCC materials. The secondary objective is to initiate a dialogue in attempt to establish reliability requirements for LTCC packages dedicated for high‐temperature operation.
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