CPC G03F 7/70191 (2013.01) [G05B 19/41875 (2013.01); H01L 22/20 (2013.01); G05B 2219/45028 (2013.01)] | 20 Claims |
1. A method comprising:
obtaining a status or measurement data time series relating to conditions existent when a process step of a device manufacturing process was performed on at least some of a plurality of substrates, the data time series comprising data for each of a plurality of different process parameters;
applying a time or smoothing filter to the data time series to obtain filtered data, the applying involving applying a different time or smoothing filter to at least one process parameter of the process parameters than at least one other process parameter of the process parameters;
determining, using the filtered data, (i) a correction to be applied in a subsequent process step performed on a subsequent substrate, (ii) a sampling scheme to be applied to subsequent substrates to generate measurement data, or (iii) both (i) and (ii); and
physically controlling or configuring the device manufacturing process based on the determined correction or sampling scheme and/or applying the determined correction or sampling scheme to control or configure the device manufacturing process.
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