Pellicle Deployment Creates a Monitoring Requirement
Extreme ultraviolet pellicles took more than a decade to reach production readiness because a membrane thin enough to pass light also has to survive source power that destroys most materials. Now that they are standard on production masks, a new problem has surfaced: degradation happens during exposure and is undetectable without measurement, while failure exposes a mask worth USD 340,000 to the particles the membrane was preventing. Monitoring transmission, uniformity and mechanical integrity has become a distinct requirement growing at 21.9%, and it did not exist as a category three years ago.
Market Impact: Escapes cost USD 12 million each








