Patent ID: 11965237
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC C  H | IPC C  H

Claim 8:
9. A thin-film deposition system, comprising:
a thin-film deposition chamber, configured to perform a thin-film deposition process;
at least one sensor, disposed in the thin-film deposition chamber; and
a control system, coupled to the thin-film deposition chamber and the at least one sensor, and configured to:
control the thin-film deposition chamber to deposit a thin-film on a substrate by using a target;
control the at least one sensor to scan a dimension of each of a plurality of comb structures of a collimator mounted between the target and the substrate to derive an erosion profile of the target according to a change on the dimension of each of the plurality of comb structures; and
detect abnormality of the thin-film deposition process by analyzing the erosion profile with an analysis model trained with data of a plurality of erosion profiles derived based on the dimension of each of the plurality of comb structures scanned under a plurality of deposition conditions comprising material and lifetime of the target, and a magnetic field and an electric field applied during the thin-film deposition process; and
stop the thin-film deposition process when the abnormality is detected.