Patent ID: 11935724
Assignee: APPLIED MATERIALS, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC C  H

Claim 0:
1. A plasma reactor comprising:
a vacuum chamber enclosure with a center electrode and a dielectric ring surrounding the center electrode;
a coaxial resonator comprising
a conductively connected assembly that includes
(a) a hollow inner conductive cylinder having a bottom edge contacting said center electrode,
(b) a hollow outer conductive cylinder surrounding said hollow inner conductive cylinder and having a bottom edge contacting said dielectric ring, and
(c) an annular conductor extending between and electrically contacting said hollow inner conductive cylinder and said hollow outer conductive cylinder, and
a hollow center conductive cylinder located between said hollow inner conductive cylinder and said hollow outer conductive cylinder, and having a bottom edge contacting said center electrode, said hollow center conductive cylinder having a top edge facing and spaced from said annular conductor by an axial gap length;

a power coupler including a first axial conductor electrically coupled to the hollow center conductive cylinder and a cylindrical second axial conductor surrounding the first axial conductor and electrically coupled to the hollow inner conductive cylinder; and
a VHF power generator to supply power to the coaxial resonator.