Patent ID: 11948781
Assignee: APPLIED MATERIALS, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. An extraction assembly for directing an angled ion beam to a substrate, comprising:
an extraction plate, comprising:
a peripheral portion to couple to a side of a plasma chamber; and
a central portion, the central portion having a non-planar shape, and including an elongated extraction aperture arranged to generate an extracted ion beam at a high angle of incidence with respect to a perpendicular to a plane of the substrate, when the plane of the substrate is arranged parallel to the side of the plasma chamber,
wherein the extraction plate comprises an interior extraction plate, the extraction assembly further comprising an exterior extraction plate, offset from the plasma chamber, wherein the elongated extraction aperture comprises a first extraction aperture, disposed in the interior extraction plate, and wherein a second extraction aperture is disposed in the exterior extraction plate, and is aligned with the first extraction aperture.