CHEMICAL SUPPLY DEVICE AND CHEMICAL SUPPLY SYSTEM INCLUDING THE SAME
According to one embodiment, a chemical supply device includes: a bubbler configured to contain a chemical solution which is used in a semiconductor process and to receive an input gas for vaporizing the chemical solution into an output gas; a constant-temperature bath configured to contain the bubb...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | According to one embodiment, a chemical supply device includes: a bubbler configured to contain a chemical solution which is used in a semiconductor process and to receive an input gas for vaporizing the chemical solution into an output gas; a constant-temperature bath configured to contain the bubbler and to adjust a temperature of the chemical solution; a valve module fluidically connected with the bubbler and configured to provide channels for the chemical solution, the input gas, and the output gas; a level sensor configured to detect a remaining level of the chemical solution; a controller; and a memory configured to store a program for operating the controller, and the controller is configured to determine a target flow rate of the input gas to cause a flow rate of the output gas to have a designated flow rate, based on the remaining level of the chemical solution. |
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