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

Claim 14:
15. An ion implantation system comprising:
a sample chamber;
an acceleration/deceleration column for adjusting a speed of an ion beam;
a scanning electrode for scanning the ion beam to cover an entire width of a sample;
a processor;
a computer readable medium storing software; and
a direct current (DC) final energy magnet (FEM),
wherein the software includes an instruction comprising:
determining an ion trajectory radius, an implantation coverage, and an actually applied magnetic field from the sample;
calculating a recipe for the direct current (DC) final energy magnet (FEM);
calculating a nominal applied magnetic field;
calculating a nominal ion energy;
calculating an actual ion energy by using the actually applied magnetic field;
verifying a tool energy shift; and
turning the ion implantation system based on the verified tool energy shift.