SEMICONDUCTOR WAFER MANUFACTURING APPARATUS
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United States of America Patent
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Issued Date -
Jan 18, 2024
app pub date -
Jul 11, 2023
filing date -
Jul 13, 2022
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Abstract
A semiconductor wafer manufacturing apparatus includes a reaction chamber, a reactant gas supply pipe and a reactant gas discharge pipe communicated with the reaction chamber, a rotating device having a cylindrical member, a lid member disposed on one end portion of the cylindrical member, a heating device disposed in a hollow chamber that is a space surrounded by the cylindrical member and the lid member, an inert gas supply pipe and an inert gas discharge pipe communicated with the hollow chamber, and a controller. The controller is configured to adjust an amount of an inert gas discharged from the inert has discharge pipe such that a pressure in the hollow chamber is higher than a pressure in the reaction chamber and equal to or lower than a pressure of a minimum closing portion of the lid member.
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