Esmaeil Kavousi Ghafi, Oliver Lang, Matthias Wagner, Alexander Melzer, Mario Huemer,
"RF Solder Ball Break Detection in Automotive FMCW Radars Using Isolated Targets? Phase"
: Proceedings of the 18th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME 2023), IEEE, Seite(n) 45-48, 6-2023, ISBN: 979-8-3503-0320-9
Original Titel:
RF Solder Ball Break Detection in Automotive FMCW Radars Using Isolated Targets? Phase
Sprache des Titels:
Englisch
Original Buchtitel:
Proceedings of the 18th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME 2023)
Original Kurzfassung:
Embedded wafer level ball grid array (eWLB) packaging is a common technology for radar transceiver monolithic microwave integrated circuits (MMICs) in the automotive radar industry. One of the challenging issues with the eWLB packages
is the radio frequency solder ball breaks (BBs), due to its adverse effects on the radar performance. In this paper, a method for BB detection (BBD) based on digital signal processing is proposed. This method exploits the collected data from the environment during the sensing task of the radar receiver to detect BBs in real-time. To the best of the authors? knowledge, this work is the first one that addresses the BBD problem solely by digital signal processing, meaning that no additional analog hardware is required for the detection. To validate the performance of the proposed method, simulation results for measured radar data are provided.