Patent ID: 6733243
Filing Date: 2004-05-11
Classification: H01L

Abstract:
A method of interbay transportation for an interbay transportation system comprising bays in which process equipment are provided, stockers respectively provided for each of the bays, and a vehicle for loading a plurality of semi-processed products and transporting semi-processed products from the stocker of the bay including the process equipment for performing a previous process step to the stocker of the bay including the process equipment for performing the next process step, the method includingcomparing a time of completion of processing in the process equipment for the previous process step and a time of transportation between the stockers, delaying transportation by the vehicle until the time of completion of processing becomes equal to the time of transportation between the stockers, and transporting semi-processed products that were completed in processing in the previous process step, during the period of delay, to the stocker for the next process step at one time.