Patent ID: 6319327
Filing Date: 2001-11-20
Classification: C23C

Abstract:
An MOCVD system for forming a metal oxide film on a target substrate, while using as a liquid raw material a metal organic compound that is in a liquid phase at room temperature:an airtight process chamber;a support member disposed in the process chamber and configured to support the target substrate;an exhaust mechanism configured to exhaust the process chamber and set the process chamber to have a vacuum atmosphere;a downstream main line connected to the process chamber and configured to supply a process gas thereto;a vaporizing unit connected to the downstream main line outside the process chamber, and configured to heat the liquid raw material to a temperature higher than a vaporizing temperature of the liquid raw material and turn the liquid raw material into the process gas;an upstream main line connected to the vaporizing unit and configured to supply the liquid raw material thereto;a raw material tank connected to the upstream main line outside the process chamber and configured to store the liquid raw material;a flow control unit arranged on the upstream main line between the raw material tank and the vaporizing unit; anda temperature maintaining mechanism configured to maintain the raw material tank and the flow control unit at a temperature, which is lower than the vaporizing temperature and higher than the room temperature.