How to: Electronics Failure Analysis Using Component Physics of Failure

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here are many misconceptions as to why circuits fail as well as misunderstanding between an application design life, reliability and user expectations. To that end, we need to understand the extrinsic as well as intrinsic factors that lead to electronic device failures. We will discuss both but with an in-depth look at the electronic components that make up the circuitry inside these devices. In particular, we will look at the component physics of failure and why it is important to understand these in order to design around them. In addition, should a product fail, a thorough failure analysis should be performed thereby making incremental changes to mitigate future occurrence of these failures. To be clear, everything fails and nothing lasts forever. Expecting otherwise is a gross misconception. However, if we understand why things fail, we could take measures to push those failures beyond the expected operational life. Physics of Failure (PoF) is a proactive, science based engineering philosophy applicable to the entire product life cycle from design, development, validation, manufacturing to usage and service. Knowing how and why things fail is equally important to understanding how and why things work. Knowledge of how things fail and the root cause of failures enables engineers to identify and design out potential failure mechanisms in the products and solve problems faster.