公开(公告)号：US20240266152A1

公开(公告)日：2024-08-08

申请号：US18107487

申请日：2023-02-08

Applicant: Applied Materials, Inc.

Inventor： Michael Andrew STEARNS ,  Alok RANJAN ,  Kartik RAMASWAMY ,  Peng TIAN ,  Timothy Joseph FRANKLIN ,  Chris BLANK ,  Carlaton WONG

IPC: H01J37/32 ,  H01F27/28 ,  H01L21/3065

CPC classification number: H01J37/3266 ,  H01F27/28 ,  H01J37/3211 ,  H01L21/3065 ,  H01J2237/0264 ,  H01J2237/3341 ,  H01J2237/3343

Abstract: Embodiments of the present disclosure include an apparatus and methods for the plasma processing of a substrate. Some embodiments are directed to a plasma processing chamber. The plasma processing chamber generally includes a planar coil region comprising a concentric coil region comprising a first concentric coil and a second concentric coil, and a power supply circuit coupled to the first concentric coil and the second concentric coil. The first concentric coil may include a first coil with a diameter measured in a direction parallel to a first plane that is smaller than the diameter of a second coil included in the second concentric coil. The power supply circuit may be configured to bias the first concentric coil and the second concentric coil to adjust a generated magnetic field in a region of control of a plasma in the plasma processing chamber to control a plasma density of the plasma.