Patent ID: 9632516
Date: 2017-04-25
CPC Classifications: G05D,H01L,Y10T

Claim:
1. A gas-supply system, comprising: a first gas container filled with gas; a second gas container filled with the gas; a heating device, configured to heat the first gas container and to keep a temperature of the gas in the first gas container in a range; a gas flow controller comprising: a first channel coupled to the first gas container and the second gas container via a tube; a valve mechanism, disposed on the first channel; and a control module, electrically connected to the valve mechanism, configured to control the valve mechanism; an operation device electrically connected to the control module; a buffer tank, coupled to the first channel and configured to receive the gas from the first gas container or the second gas container via the gas flow controller; and a pressure transducer, disposed on the buffer tank and configured to generate a pressure signal to the operation device according to a pressure of the gas in the buffer tank, wherein the operation device is configured to generate a control signal to the control module according to the pressure signal, and the control module is configured to adjust the valve mechanism according to the control signal so as to adjust a flow rate of the gas flowing into the buffer tank and keep the pressure of the gas in the buffer tank within a predetermined pressure range.