Patent ID: 11869752
Assignee: TOKYO ELECTRON LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A transfer system configured to transfer a focus ring into a processing apparatus, comprising:
a transfer device and a position detection system,
wherein the processing apparatus comprises:
a chamber main body; and
a placing table, disposed within a chamber provided by the chamber main body, having a substrate placing region and a focus ring placing region surrounding the substrate placing region, wherein the transfer device is configured to transfer the focus ring onto the focus ring placing region,
wherein the position detection system comprises:
a light source configured to generate measurement light;
multiple optical elements each configured to output the measurement light generated from the light source as output light and configured to receive reflected light;
a driving unit configured to move each of the multiple optical elements to allow each of the optical elements to scan a scanning range from the focus ring placed on the focus ring placing region to the substrate placing region; and
a controller configured to calculate, based on the reflected light in the scanning range, a positional relationship between the placing table and the focus ring placed on the focus ring placing region for each of the multiple optical elements, and
wherein the transfer device is configured to adjust a transfer position of the focus ring onto the focus ring placing region based on the positional relationship calculated by the controller.