Patent ID: 7848828
Filing Date: 2010-12-07
Classification: G05B,H01L,Y02P

Abstract:
1. A method for managing a plurality of manufacturing apparatuses used in a managed production line comprising a plurality of manufacturing processes for manufacturing an electronic device, each of the manufacturing apparatuses being used in one or more of the manufacturing processes, the method comprising: acquiring a property of a reference device manufactured in a predetermined reference production line comprising the plurality of manufacturing processes; performing at least one of the plurality of manufacturing processes in the managed production line, performing the other manufacturing processes in the predetermined reference production line, and manufacturing a comparison device; measuring a property of the comparison device; comparing the measured properties of the reference device and the comparison device; and judging whether a manufacturing apparatus used in the at least one manufacturing process in the managed production line is defective or not, based on a property difference between the reference device and the comparison device.