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semiconductor components to maintain signal integrity, timing, and synchronization. Signal integrity is maintained through high-frequency semiconductor devices, which manage the propagation delays and phase coherence necessary for phased array operation. The aviation industry's unique requirements for power semiconductors have also started to drive the development of specialized semiconductor technologies. For example, the demand for high-power architectures in aircraft systems has led to the adoption of wide-bandgap semiconductors like silicon carbide (SiC) and gallium nitride (GaN). Compared to silicon, such materials offer superior performance in high-voltage and high- temperature applications, unlocking improved aircraft efficiency and reliability. Functional safety integrated circuits (ICs) have also taken a foothold in avionics power systems. The stringent requirements for fail-safe operation and high-reliability standards necessitate robust semiconductor solutions that can withstand the harsh operating conditions of aerospace environments. Functional safety ICs ensure the reliability and safety of avionics systems through comprehensive onboard diagnostics and management of complex system interactions. Similarly, power monitoring and management systems use advanced semiconductor devices to accurately measure and manage power consumption and delivery. This operation involves monitoring static power levels and analyzing dynamic power fluctuations caused by activating various aircraft systems. These systems rely on high- speed data acquisition systems and precision analog-to-digital converters. Finally, semiconductors are revolutionizing the aviation space for C h a p t e r 2 | T h e S e m i c o n d u c t o r R e v o l u t i o n i n Av i o n i c s Power transistors have enabled electrification of every sector of transportation. Wide bandgap power transistors (SiC and GaN) make high-power-density power converters practical for aerospace. In the past, the weight of converters canceled out the efficiency benefits for flying vehicles." Eric Kline Engineering Director, AMETEK 13 11 Industry Experts Discuss eMobility and the Future of Aviation