Patent ID: 11881378
Assignee: APPLIED MATERIALS, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A method of controlling neutral reactive species, comprising:
generating a plasma within a plasma chamber of a plasma source; and
coupling an extraction plate to a chamber housing of the plasma chamber, the extraction plate comprising:
a main body having a first side positioned within the chamber housing and a second side positioned external to the chamber housing; and
a plurality of channels extending through the main body, wherein each of the plurality of channels has a lengthwise axis oriented at a non-zero angle relative to a perpendicular extending from a main surface of a workpiece; and

delivering, through the plurality of channels of the extraction plate, one or more radical beams to the workpiece at the non-zero angle, wherein each channel of the plurality of channels has a channel length and a channel width, and wherein at least one channel of the plurality of channels has width that varies along the channel length.