Patent ID: 6776819
Filing Date: 2004-08-17
Classification: C23C

Abstract:
A gas supplying apparatus, comprising:a carrier gas supplying device including a source of at least one carrier gas used for carrying a reactive gas; at least one reactive gas supplying device that includes a source of a reactive gas, and a mechanism to gasify the reactive gas; a gas flow line connecting an inlet of said at least one reactive gas supplying device to an outlet of the carrier gas supplying device such that carrier gas flows from the carrier gas supplying device through said line and into the at least one reactive gas supplying device and thereby entrains the gasified reactive gas; and a pressure detecing device disposed in the gas flow line downstream of the carrier gas supplying device and adjacent the inlet of the reactive gas supplying device with respect to the flow of the carrier gas in the apparatus so as to detect the pressure of the carrier gas prior to the carrier gas entering said reactive gas supplying device.