In manufacturing, especially in high-stakes industries such as semiconductors, even minor process variations can rapidly escalate into costly yield excursions, significantly impacting margins and production schedules. These excursions occur when a seemingly small issue, such as subtle equipment drift or minor material inconsistencies, triggers extensive scrap losses, delays, and unanticipated costs. Preventing yield excursions before they escalate requires rigorous risk management and proactive response planning. One method increasingly favored by manufacturing leaders is Change Flow Thinking (CFT), a structured, visual approach that allows teams to anticipate and mitigate risks early. Understanding Yield Excursions Yield excursions start innocently, often with minor…