METHOD OF MAINTAINING A SEMICONDUCTOR PRODUCTION LINE

摘要

In one example embodiment, a method of maintaining a semiconductor manufacturing line includes setting up a recipe for controlling an implementation of a unit process based on which at least one semiconductor device is manufactured by a manufacturing facility. The method further includes collecting reference data of the manufacturing facility being controlled according to the reference recipe and obtaining a statistical model of the reference data and a health index of the statistical model, the health index being a limit beyond which an output of the semiconductor manufacturing line decreases. The method further includes controlling the implementation of the unit process and obtaining monitoring data during the implementation of the unit process using the statistical mode. The method further includes renewing the statistical model based on the monitoring data.