A system and method for automatic SPC chart generation including a storage
device and a data acquisition module. The storage device stores a chamber
management tree, a recipe window management tree, a parameter
configuration table and multiple chart profile records. The data
acquisition module, which resides in a memory, acquires multiple process
events and parameter values corresponding to the process events and a
process parameter, selects a relevant statistical algorithm, calculates a
statistical value by applying the statistical algorithm to the parameter
values, creates a new chart profile record and a parameter statistics
record therein if the chart profile record is absent, and stores the
statistical values and measured time in the parameter statistics record.