Patent ID: 6879867

Claim:
A process monitoring device for monitoring plasma processing of one or more semiconductor samples in a sample processing apparatus, said process monitor device comprising: a monitor data acquisition section for acquiring plural kinds of monitor data of plasma status inside said sample processing apparatus, via one or more sensors, said plural kinds of monitor data indicating states of said plasma including, but not limited to, optical emission spectra of plasma and electrical states of plasma inside said sample processing apparatus; a data selection section for extracting temporally, without performing time-compression processing, plural kinds of monitor data acquired during a designated time portion of one processing step within a sample processing sequence of one semiconductor sample, from among said plural kinds of monitor data; a monitoring signal generation section for generating monitoring signals respectively corresponding in a time series manner to the monitor data extracted by said data selection section; and a display setting controller for displaying a plurality of said monitoring signals obtained with respect to plural semiconductor samples processed in said sample processing apparatus, on a display section in a time series manner.