METHOD FOR PREPARING RESTART OF REACTOR FOR EPITAXIAL GROWTH ON WAFER

METHOD FOR PREPARING RESTART OF REACTOR FOR EPITAXIAL GROWTH ON WAFER

Provided is a process of baking the inside of a reaction chamber in a re-operation preparation process of the reaction chamber in which epitaxial growth is performed on a wafer. The process of baking the inside of the reaction chamber in the re-operation preparation process of the reaction chamber i...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KANG Dong-Ho, CHO Man-Kee
Format: Patent
Sprache:eng
Schlagworte:
AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE
APPARATUS THEREFOR
BASIC ELECTRIC ELEMENTS
CHEMISTRY
CRYSTAL GROWTH
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
METALLURGY
PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE
REFINING BY ZONE-MELTING OF MATERIAL
SEMICONDUCTOR DEVICES
SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE
SINGLE-CRYSTAL-GROWTH
UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL
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Beschreibung
Zusammenfassung:Provided is a process of baking the inside of a reaction chamber in a re-operation preparation process of the reaction chamber in which epitaxial growth is performed on a wafer. The process of baking the inside of the reaction chamber in the re-operation preparation process of the reaction chamber in which epitaxial growth is performed on the wafer includes rising an inner temperature of the reaction chamber in stages according to a time and introducing a hydrogen gas to upper and lower sides of a susceptor through a main valve and a slit valve, which are provided in a side surface of the reaction chamber. Thus, since power of a heating source for transmitting heat into the reaction chamber increases in stages, an atmosphere in the reaction chamber may be unstable to allow stagnant moisture and contaminants to flow, thereby effectively discharging the moisture and contaminants.