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Module classification approach for moving semiconductor wafers in a wafer processing system
Module classification approach for moving semiconductor wafers in a wafer processing system
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机译:用于在晶片处理系统中移动半导体晶片的模块分类方法
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摘要
Each module of a wafer processing system is given a classification. Upon receipt of a command to move the wafer to one of the modules, a sequence enumerating the modules to be visited by the wafer before reaching its destination is created. The modules are added to the sequence based on their classification. The wafer is then worked on in each module enumerated in the sequence. By creating the sequence when needed, the number of static files that have to be maintained and stored in the wafer processing system is minimized. Further, creating the sequence at the time it is needed allows the sequence to take advantage of the history of the wafer and thereby eliminate unnecessary steps.
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