摘要:
Provided is a method of depositing a thin film on a substrate using an impulse feeding process. The method includes performing a second reaction gas continuous feeding process of continuously feeding a second reaction gas into a chamber in which the substrate is installed, and performing a number of times, during the second reaction gas continuous feeding process, a process cycle including a first reaction gas feeding process of feeding a first reaction gas into the chamber and a first reaction gas purge process of purging the first reaction gas that is not adhered onto the substrate. The second reaction gas continuous feeding process includes a second reaction gas impulse process of feeding the second reaction gas at an impulse flow rate greater than a basic flow rate during the first reaction gas purge process.
摘要:
A thin film deposition apparatus that can effectively use a chemical source having a high vaporization temperature is provided. The thin film deposition apparatus includes a chamber for depositing a thin film on a wafer, a canister for accommodating a liquid chemical source to be supplied to the chamber, and a vaporizer for vaporizing the liquid chemical source bubbled in the canister and providing the vaporized chemical source to the chamber. The vaporizer is installed on a top surface or lateral surface of the chamber by an adaptor block to be incorporated into the chamber. A first gas line between the vaporizer and the chamber is formed within the adaptor block.
摘要:
Provided is a method of depositing a thin film on a wafer. The method includes an operation of loading a wafer on a wafer block; an operation of depositing a thin film on the wafer after loading the wafer; an operation of unloading the wafer on which the thin film is deposited from the wafer block; an operation of dry cleaning to remove thin films accumulated on an inner surface of the chamber after unloading the wafer; and an operation of chamber seasoning to form an atmosphere for depositing the main thin film after dry cleaning, wherein the dry cleaning operation comprises: an operation of loading a dummy wafer on the wafer block after unloading the wafer; an operation of main dry cleaning to remove the thin films accumulated on the inner surface of the chamber by dry cleaning by supplying an inert gas and a cleaning gas and supplying a RF energy to the chamber; an operation of sub-dry cleaning to remove an element of the cleaning gas used in the operation of main dry cleaning and remaining on the surface of the chamber by activating a gas selected from the group consisting of H2, NH3, Ar, and N2 by applying RF energy into the chamber while discontinuing supplying of the cleaning gas into the chamber; and an operation of unloading the dummy wafer from the wafer block after the sub-dry cleaning operation.
摘要:
Provided is a method of depositing a thin film. The method is performed using a thin film deposition apparatus that includes a reaction chamber having a wafer block located in a chamber to heat a loaded wafer up to a predetermined temperature, a top lid covering the chamber to seal the chamber, and shower head coupled under the top lid and having a first injection hole and a second injection hole, through which a first reaction gas and a second reaction gas are injected into the wafer, a reaction gas supplying unit supplying the first and second reaction gases into the reaction chamber, and a gas heating path unit installed on a second conveying line between first and second conveying lines connecting the reaction chamber and the reaction gas supplying unit to heat the gas passing through itself, and the method includes the operations of: loading the wafer on the wafer block; depositing a thin film by injecting the first reaction gas and the second reaction gas that is thermally activated onto the wafer through the first and second injection holes; flowing a heat treatment gas including an H element onto the thin film to reduce impurities included in the thin film; and unloading the wafer, on which the thin film is deposited, from the wafer block. If the second reaction gas has a temperature of T1 before passing through the gas heating path unit and a temperature of T2 after passing through the gas heating path unit, T2 is higher than T1, and if the heat treatment gas has a temperature of T1 before passing through the gas heating path unit and a temperature of T3 after passing through the gas heating path unit, T3 is same as T1 or higher.
摘要:
Provided is a method of depositing a metal nitride film having a multilayer structure and different deposition speeds on a substrate. The method is performed by forming a first lower metal nitride film on the substrate at a first deposition speed, forming a second lower metal nitride film on the first lower metal nitride film at a second deposition speed, and forming an upper metal nitride film having a large content of nitrogen (N) on a lower TiN film which is formed by the forming of the first lower metal nitride film and the second lower metal nitride film, at a third deposition speed, to improve stability with respect to exposure to air/moisture. The deposition speed of the metal nitride film having a multi-layer structure satisfies a relationship that the second deposition speed ≧the first deposition speed ≧the third deposition speed.
摘要:
Disclosed is a method of depositing thin films, in which the thin films are continuously deposited into one chamber and 1-6 wafers are loaded into the chamber. In the method, a process gap between a shower head or a gas injection unit and a substrate is capable of being controlled. The method comprises (a) loading at least one substrate into the chamber, (b) depositing the Ti thin film onto the substrate, adjusted so that a first process gap is maintained, (c) moving a wafer block so that the first process gap is changed into a second process gap in order to control the process gap of the substrate upon which the Ti thin film is deposited, (d) depositing the TiN thin film onto the substrate, moved to set the second process gap, and (e) unloading the substrate upon which the Ti/TiN thin films are deposited. If it is possible to continuously deposit Ti/TiN thin films on 1-6 substrates in one chamber, it is possible to set only one chamber among 4 chambers in a PM period, thereby an operating ratio of a cluster tool can be significantly improved. When Ti/TiN is continuously deposited in one chamber, the time needed to move a substrate from a Ti chamber to a TiN chamber is reduced, thus treatment efficiency of the substrate per unit time is significantly increased.