A Practical Engineering Guide for Al₂O₃, AlN, and Si₃N₄ Substrates This guide explains how engineers select the most suitable ceramic substrate for IGBT modules and SiC power modules based on thermal performance, reliability requirements, and system-level constraints. In many power-module […]

Introduction With the widespread adoption of 800V high-voltage platforms and SiC power devices, electric vehicle (EV) power modules are facing higher thermal loads, more stringent thermal cycling, and higher reliability requirements. Traditional alumina (Al2O3) substrates are still widely used due

Introduction What Is a Ceramic Substrate? A ceramic substrate provides electrical insulation and heat dissipation in electronic circuits that require both functions. Engineers commonly use ceramic substrates in power modules and semiconductor packaging where thermal stability and reliability are critical.

Introduction For DBC and AMB substrates, the ceramic layer itself is often treated as a “basic material.” In reality, however, the manufacturing process behind a bare ceramic substrate is far more complex than many people expect. Even when the same material

Introduction Ceramic substrates are the core support for heat dissipation and insulation in power modules. Their performance directly affects the module’s reliability, heat dissipation capacity, and lifespan. Currently, the market is mainly focused on three materials: Al₂O₃ (alumina), AlN (aluminum