Patent ID: 11915915
Assignee: APPLIED MATERIALS, INC.
Field: Surface technology, coating (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 0:
1. An apparatus for influencing ion trajectories onto a substrate, comprising:
an annular assembly configured to completely surround a periphery of the substrate in a physical vapor deposition (PVD) chamber;
one or more of a plurality of discrete permanent magnets each embedded in the annular assembly in a vertical pole orientation and spaced symmetrically around the annular assembly in respective one or more insertion holes, the one or more of the plurality of discrete permanent magnets is configured to form magnetic field lines between a south pole and a north pole of each one of the one or more of the plurality of discrete permanent magnets;
an annular recess formed in the annular assembly above and outer of the one or more insertion holes; and
an annular overhang formed above the annular recess of the annular assembly and above a portion of each of the one or more insertion holes, wherein the annular overhang is configured to retain the one or more of the plurality of discrete permanent magnets at a top by limiting upward movement of the one or more of the plurality of discrete permanent magnets.