Patent ID: 11887815
Assignee: TOKYO ELECTRON LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A plasma processing system comprising:
a vacuum system;
a plasma processing chamber comprising:
a chamber cavity coupled to the vacuum system; and
a substrate holder comprising a surface disposed inside the chamber cavity;

a radio frequency (RF) source electrode coupled to an RF power source, the RF source electrode configured to ignite plasma in the chamber cavity;
a microwave source coupled to a microwave oscillator;
a conductive spatial uniformity component comprising a plurality of through openings, the conductive spatial uniformity component comprising a major surface electromagnetically coupled to the microwave source, the major surface configured to couple microwave power to the plasma in the chamber cavity; and
a plurality of conductive protrusions configured to move relative to the conductive spatial uniformity component such that a depth distance, from the major surface to the conductive protrusions within the plurality of through openings is adjustable.