Patent ID: 11923179
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A plasma processing apparatus, comprising:
a structure defining an interior chamber;
an injector holder configured to removably mate with the structure to provide access to the interior chamber, the injector holder defining a first opening;
a sleeve configured to be received within the first opening of the injector holder, the sleeve defining a second opening; and
a gas injector configured to be received within the second opening of the sleeve, wherein:
the injector holder has a first material composition;
the sleeve has a second material composition;
the gas injector has a third material composition; and
a removal rate of the second material composition by a plasma generated in the interior chamber is less than at least one of a removal rate of the first material composition by the plasma generated in the interior chamber or a removal rate of the third material composition by the plasma generated in the interior chamber.