Patent ID: 6671570
Filing Date: 2003-12-30
Classification: G05B,H01L,Y02P

Abstract:
A method for assessing and improving production performance of equipment in a semiconductor fabrication facility, the method comprising the steps of:connecting a data collection system to a system bus, the system bus connected directly or indirectly to a manufacturing execution system and a plurality of semiconductor fabrication tools; configuring, via a user interface, productivity state models for the semiconductor fabrication tools, the state models based upon a customizable set of user defined triggers for each tool and representing a performance state for each of the semiconductor fabrication tools; collecting data from messages transmitted on the system bus between the semiconductor fabrication tools and the manufacturing execution system data collection system; generating triggers based upon the messages, the triggers mapped from the set of defined triggers and causing a transition from one state model to a next defined state model; updating the state model of each tool affected by one of the triggers; and recording state transitions within the state models in a tracking database.