摘要:
A chemical vapor deposition apparatus for depositing a thin film of highly dielectric materials for giga-capacity memory devices can reliably clean reaction products formed within the deposition chamber without sacrificing the production efficiency. The apparatus comprises a hermetic deposition chamber (10) containing a substrate holding section for placing a substrate, and a gas supply head (12) disposed opposite to the substrate holding section (14) for directing a gaseous feed material onto the substrate. There are provided a trapping member supporting device for supporting a trapping member (26) so as to be opposite to a target cleaning area inside the deposition chamber, and a plasma generation device for generating a plasma between the target cleaning area and the trapping member supported by the trapping member supporting device.
摘要:
A compact vaporizer system is presented to produce a high quality vapor feed from a liquid feed to be delivered to a chemical vapor deposition processing chamber to produce thin film devices based on highly dielectric or ferroelectric materials such as BaTiO 3 , SrTiO 3 and others such materials. The vaporization apparatus comprises a feed tank (12) for storing the liquid feed; feed delivery means for transporting the liquid feed by way of a feed delivery path; a vaporizer section (22) disposed in the delivery path comprising a high temperature heat exchanger (40) having a capillary tube (14a) for transporting the liquid feed and a heat source for externally heating the capillary tube; and a vaporization prevention section (20) disposed upstream of the vaporizer section for preventing heating effects of the vaporizer section to the liquid feed within the vaporization prevention section.
摘要:
A vapor feed supply system including a vaporizer device (10) and a method of cleaning a vapor flow region including such a vaporizer device (10), to enable thorough cleaning of the system, without having to degrade the overall system vacuum in the process of cleaning the vaporizer device (10) is presented. The method comprises: defining a cleaning fluid passage (22) having a predetermined withstand pressure by isolating a cleaning region of the vapor flow region; and flowing a cleaning fluid (26) into the cleaning fluid passage (22) under a pressure so as to enable the cleaning fluid (26) to remain in a liquid state at a cleaning temperature of the cleaning region.
摘要:
A chemical vapor deposition apparatus for depositing a thin film of highly dielectric materials for giga-capacity memory devices can reliably clean reaction products formed within the deposition chamber without sacrificing the production efficiency. The apparatus comprises a hermetic deposition chamber (10) containing a substrate holding section for placing a substrate, and a gas supply head (12) disposed opposite to the substrate holding section (14) for directing a gaseous feed material onto the substrate. There are provided a trapping member supporting device for supporting a trapping member (26) so as to be opposite to a target cleaning area inside the deposition chamber, and a plasma generation device for generating a plasma between the target cleaning area and the trapping member supported by the trapping member supporting device.
摘要:
A vapor-phase film growth apparatus includes a substrate holder for holding a substrate, a gas ejection head, and a radiant heat shield device. The substrate holder has a substrate heater therein, and the gas ejection head has a gas injection surface for ejecting a material gas toward a substrate held by the substrate holder. The radiant heat shield device is disposed between the substrate holder and the gas injection head in confronting relationship to the gas injection surface of the gas ejection nozzle. The substantially planar radiant heat shield device is permeable to gases and has a heating capability. The gas ejection head allows gas to be ejected at supersonic velocity.
摘要:
A vapor feed supply system including a vaporizer device and a method of cleaning a vapor flow region including such a vaporizer device, to enable thorough cleaning of the system, without having to degrade the overall system vacuum in the process of cleaning the vaporizer device is presented. The method comprises: defining a cleaning fluid passage having a predetermined withstand pressure by isolating a cleaning region of the vapor flow region; and flowing a cleaning fluid into the cleaning fluid passage under a pressure so as to enable the cleaning fluid to remain in a liquid state at a cleaning temperature of the cleaning region.
摘要:
A compact vaporizer system is presented to produce a high quality vapor feed from a liquid feed to be delivered to a chemical vapor deposition processing chamber to produce thin film devices based on highly dielectric or ferroelectric materials such as BaTiO 3 , SrTiO 3 and others such materials. The vaporization apparatus comprises a feed tank (12) for storing the liquid feed; feed delivery means for transporting the liquid feed by way of a feed delivery path; a vaporizer section (22) disposed in the delivery path comprising a high temperature heat exchanger (40) having a capillary tube (14a) for transporting the liquid feed and a heat source for externally heating the capillary tube; and a vaporization prevention section (20) disposed upstream of the vaporizer section for preventing heating effects of the vaporizer section to the liquid feed within the vaporization prevention section.