Patent ID: 11869750
Assignee: TOKYO ELECTRON LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A plasma processing apparatus for executing a plasma processing, comprising:
a chamber including a chamber body having a cylindrical shape and constituting a side wall of the chamber;
a first member partially disposed in an internal space of the chamber;
a second member extending in a circumferential direction with respect to a central vertical axis of the chamber body;
an upper electrode;
a heater unit configured to heat the first member;
a spacer provided between the chamber body and the first member in a vertical direction; and
wherein the first member extends outward from the internal space of the chamber and is exposed to a space outside the chamber,
wherein the heater unit is formed as an annular plate,
wherein an outer surface and a lower surface of the heater unit are at least partially in physical contact with the first member,
wherein an inner surface and an upper surface of the heater unit are not in physical contact with the first member,
wherein the spacer is exposed to the space outside the chamber,
wherein the heater unit includes a main body and a heater provided inside the main body, and
wherein the upper electrode, the second member, the heater unit, and the first member are arranged in order in a radially outward direction.