1. What is post silicon validation?Post-silicon validation is not a new idea and has been used for many years in many places.It can be credited with the findings of many functional bugs that escaped pre-silicon verification.Post-silicon validation and debug is the last step in the development of a semiconductor integrated circuit. During the pre-silicon process, engineers test devices in a virtual environment with sophisticated simulation, emulation, and formal verification tools. In contrast, post-silicon validation tests occur on actual devices running at-speed in commercial, real-world system boards using logic analyzer and assertion-based tools.Validation means not just giving the input and getting the corresponding output. If any problem arises we should be able to debug that.Post-silicon validation is used to detect and fix bugs in integrated circuits and systems after manufacture. Due to sheer design complexity, it is nearly impossible to detect and fix all bugs before manufacture. Post-silicon validation is a major challenge for future systems. Today, it is largely viewed as an art with very few systematic solutions. As a result, post-silicon validation is an emerging research topic with several exciting opportunities for major innovations in electronic design automation2. why do we need post silicon validation?

After manufacturing the platform we should validate each and every component in such a way that it should work in accordance with the given specifications(up to the standard).Large semiconductor companies spend millions creating new components. it is crucial that the new chip function in full and perfect compliance to its specification, and be delivered to the market within tight consumer windows(within time). Even a delay of a few weeks can cost tens of millions of dollars. Post-silicon validation is therefore one of the most highly leveraged steps in successful design implementation.3. So here we are validating GBE