Production managing system of semiconductor device

1.Aproduction managing system for semiconductor devices, comprising a semiconductor device producing center connected to at least one user terminal through an information communication line, said semiconductor device producing center comprising:

• a plurality of production devices for performing production processes in respective process steps of semiconductor devices;
• a corresponding number of in-line measuring devices provided net to respective said production devices, for measuring process parameters corresponding to the respective process steps of said production devices and outputting the process parameters measured in units of lot of said semiconductor devices as measured data;
• a database storing, for each wafer group including one or more wafers, at least data of production methods for producing said semiconductor devices, the measured data, specifications of the process steps corresponding to the measured data, estimated yields, data of the input date and hour of a lot, data of the scheduled date on which each process step is performed, data of the actual date of completion of every step and data of the scheduled date of completion of said semiconductor devices, correspondingly to lot number data of said semiconductor devices;
• and
• a server including an estimated yield operating unit for calculating the estimated yield, which is a final yield, on the basis of the specifications and the measured data, and a production managing unit for performing a production management of semiconductor devices ordered by a user on the basis of the respective data inputted by the user and the estimated yields, said server performing write and read of the respective data inputted from said user terminal with respect to said database.