As semiconductor designs continue to scale in complexity and integration, ensuring that chips can be tested thoroughly and economically has become a strategic priority. Manufacturing defects, process variations, and subtle design issues can render even functionally correct designs unusable if they are not detected efficiently during production. Design for Testability https://trevorkoruy.tinyblogging.com/the-importance-of-end-to-end-design-flow-understanding-in-vlsi-engineering-83475969