Patent ID: 7702413

Claim:
A semiconductor device manufacturing system comprising: a processing apparatus to perform a process on a semiconductor substrate; a process control apparatus controlling operation of the processing apparatus by transmitting a start signal and a stop signal to the processing apparatus; a real time simulator configured to monitor a state of the processing apparatus during processing of the semiconductor substrate, integrate internal information of the processing apparatus from the start signal to the stop signal and internal information of the processing apparatus after the stop signal, in response to the start signal and the stop signal to the processing apparatus, execute a simulation of a semiconductor manufacturing process, and estimate a progress of the process, wherein in response to a start signal transmitted from the process control apparatus to the processing apparatus, the real time simulator initiates calculation of the quality of the semiconductor device, based on the internal information transmitted from the processing apparatus in real time, and wherein the real time simulator includes an oxide film thickness calculation section adapted to calculate an oxide film thickness continuously in real time based on apparatus internal information from a time of stopping an oxidation process, until a predetermined time elapses.