Patent ID: 11961707
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  F  Y | IPC C  F  H

Claim 7:
8. A method, comprising:
generating, by a first gas generator, a first gas for a period of time greater than that of a first gas container with a first predetermined storage capacity;
controlling a first flow rate of the first gas by a first flow controller connected to the first gas generator;
generating, by a second gas generator, a second gas for a period of time greater than that of a second gas container with a second predetermined storage capacity, wherein the second gas is different from the first gas;
controlling a second flow rate of the second gas by a second flow controller connected to the second gas generator; and
mixing the first gas and the second gas into a mixed gas.