Patent ID: 11931854
Assignee: APPLIED MATERIALS, INC.
Field: Machine tools (Mechanical engineering)
Classification: CPC B  H | IPC B  H

Claim 6:
7. The system of claim 6, wherein the controller is configured to cause the carrier head to
for the first duration, move the substrate laterally across the polishing pad such that the central portion of the substrate and the edge portion of the substrate are positioned over the polishing surface of the polishing pad;
for the second duration, hold the substrate in a position such that the central portion of the substrate is positioned over the polishing surface of the polishing pad and the edge portion of the substrate is positioned over a first polishing control groove;
for a third duration, move the substrate laterally across the polishing pad such that a central portion of the substrate and an edge portion of the substrate are positioned over the polishing surface of the polishing pad; and
for a fourth duration, hold the substrate in a position such that the central portion of the substrate is positioned over the polishing surface of the polishing pad and the edge portion of the substrate is positioned over a second polishing control groove.