CeraLinkTM: An Antiferroelectric Capacitor for Power Electronics
Dr. Thorsten Bayer TDK Electronics Corporate Research & Development, Material Development, Piezo and Protection Devices
Proceeding electrification including automotive power electronics demands increased power density, miniaturization, and elevated operating temperatures. One crucial component to define the cost, size, energy efficiency, and reliability of power electronics is the DC link capacitor. For this purpose, CeraLinkTM capacitors are perfectly suited due to their high capacitance density, high operating temperatures, low inductance, as well as low losses in operation. CeraLinkTM is based on the ceramic material PLZT (lead lanthanum zirconate titanate) and characterized by a high energy storage capability due to the antiferroelectric phase. This presentation provides an overview of material and device requirements. Optimization capabilities as well as constraints will be outlined to further advance the capacitor technology based on antiferroelectric materials. Especially, methods to study the process of resistance degradation are addressed to continuously improve the overall reliability as well as the predictability of the device life time.
About the FLAME-inars
The FLAME-inars are organized by the collaborative project FLAME at TU Darmstadt, in which electronic-structure-property relationships are being developed and exploited to realize novel lead-free antiferroelectric compounds. The seminars will gather experts in processing, characterization and theory to discuss materials and applications, bulk and thin films, fundamental properties, electronic structure & defects, and related aspects.