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The end goal of any design is a reliable, well-performing product, yet achieving these characteristics in the design of electronics systems is a challenging endeavor. This is true whether you are designing a data center, an engine control unit, a luminaire, or an avionics chassis. A range of factors contribute to the challenge including the constant need for ever-increasing capabilities (no device is ever powerful enough), compressed design schedules (no design can be completed fast enough), and ever-decreasing sizes (no device is ever small enough) - all while avoiding a host of failure modes. One of the most common causes of mechanical failure is overheating, which can lead to performance degradation, failure of individual components, temperature cycling failure of solder joints, and reduced system lifetime. Fortunately there are a number of tools at the design engineer’s disposal to help mitigate these challenges.

Analytical calculations are particularly well-suited for broad system performance modeling and early design envelope evaluation. Physical testing is the standard for final design validation & qualification. But between these two ends of the design cycle, simulation is typically the most effective tool, allowing the engineer to efficiently explore the performance of a particular design, virtually test design variants, predict system robustness & reliability.