The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 04, 2025

Filed:

Nov. 11, 2023
Applicant:

Applied Materials, Inc., Santa Clara, CA (US);

Inventors:

Yuhui Zhang, Sunnyvale, CA (US);

Yang Yang, Cupertino, CA (US);

Zhimin Jiang, Santa Clara, CA (US);

Kartik Ramaswamy, San Jose, CA (US);

Alok Ranjan, Sunnyvale, CA (US);

Assignee:

Applied Materials Inc., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 37/32 (2006.01); H01L 21/3065 (2006.01);
U.S. Cl.
CPC ...
H01J 37/3211 (2013.01); H01J 37/32183 (2013.01); H01L 21/3065 (2013.01); H01J 2237/3341 (2013.01);
Abstract

An apparatus for generating plasma inductively in a process chamber leverages a radial coil network. In some embodiments, the radial coil network is a planar structure comprising an inner conductor with an open center where at least one RF power source is electrically connected to the inner conductor at a power node, an outer conductor spaced away from and surrounding the inner conductor where at least one ground is electrically connected to the outer conductor at a ground node, a plurality of branch conductors extending from the inner conductor to the outer conductor where the plurality of branch conductors is distributed uniformly in the radial coil network, and a plurality of capacitors where at least one capacitor of the plurality of capacitors is electrically interposed into each branch conductor of the plurality of branch conductors.


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