Multiscale Modeling of BaTiO₃-Based Dielectric Materials for Miniaturized Electronic Devices

Abstract

Miniaturized electronic devices increasingly depend on dielectric materials that can sustain high electric fields, thermal cycling, mechanical stress, and long operational lifetimes within extremely constrained volumes. BaTiO3-based dielectrics remain central to multilayer ceramic capacitors, embedded passive components, and advanced power delivery architectures because their perovskite structure supports high permittivity and tunable ferroelectric behavior. However, the performance of these materials cannot be understood solely at the unit-cell or device level. It emerges from coupled phenomena spanning atomic bonding, domain wall motion, grain boundaries, film texture, electrode interfaces, package-level thermal management, and manufacturing infrastructure. This paper develops a system-level examination of multiscale modeling for BaTiO3-based dielectric materials in miniaturized electronic devices. It argues that credible modeling frameworks must integrate electronic-structure insight, mesoscale defect and domain descriptions, continuum electromechanical formulations, and manufacturing-aware statistical representations. These technical layers are further entangled with structural trade-offs involving capacitance density, breakdown strength, leakage, fatigue, and integration complexity. The discussion also extends to reliability governance, sustainability, resource justice, and policy implications, because dielectric miniaturization depends on critical materials, energy-intensive processing, and globally distributed supply chains. The paper concludes that multiscale modeling should be treated not merely as a simulation technique but as a socio-technical infrastructure for design assurance, robustness assessment, fair access, and responsible deployment in next-generation electronic systems.