Patent ID: 8052834

Claim:
A substrate processing system comprising a network having a coupling between a substrate processing apparatus discharging a processing solution onto a rotating substrate to perform predetermined processing, and a computer collecting data from said substrate processing apparatus, said substrate processing system comprising: a collection part configured to monitor and collect a plurality of control elements in a specific step as one process of said predetermined processing in said substrate processing apparatus; and an abnormality detection part comprising an abnormality detection program configured to detect a processing abnormality in said substrate processing apparatus based on a combined effect of said plurality of control elements collected by said collection part, the abnormality detection program being configured to detect that a first control element of the plurality of control elements deviates from a first reference value by an amount sufficient to determine a presence of an abnormality, and to determine an absence of the processing abnormality in processing as a whole when a second control element of the plurality of control elements deviates from a respective reference value by a predetermined amount or more and the abnormality detection program determines that effects caused by such deviations compensate each other, and the abnormality detection program being further configured to permit continuation of the predetermined processing by the substrate processing apparatus based on the determination of the absence of the processing abnormality in the processing as the whole, wherein said substrate processing apparatus discharges a cleaning solution and thereafter discharges pure water onto a rotating substrate to perform cleaning of said substrate, wherein said collection part monitors and collects the plurality of control elements in a cleaning solution spread step in which said cleaning solution is discharged and spread to coat the rotating substrate, and wherein said abnormality detection part detects a processing abnormality in said cleaning based on a combined effect of two or more of said plurality of control elements in said cleaning solution spread step, the plurality of control elements including the number of revolutions of a substrate, the temperature, flow rate and concentration of the cleaning solution, and cleaning solution discharge time.