Patent ID: 11862429
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. An ion implantation system comprising:
a user interface for inputting parameters and viewing data obtained by the ion implantation system;
an ion source loading chamber for providing ion source materials;
an extraction electrode for extracting required ions for the ion implantation system;
a processor; and
a direct current (DC) final energy magnet (FEM),
wherein the processor is programmed to:
obtain a calibration curve of the DC FEM;
perform servo loop to adjust parameters of the DC FEM;
apply a wafer acceptance test (WAT) recipe to a test sample;
calculate a recipe for the DC FEM;
calculate a real energy of the DC FEM by data obtained from applying the WAT recipe to the test sample;
verify a tool energy shift; and
tune the DC FEM based on the verified tool energy shift.