摘要:
A tungsten film with a lower specific resistance and a lower fluorine concentration over its boundary with the base barrier layer, which adheres to the barrier layer with a high level of reliability, compared to tungsten films formed through methods in the related art, is formed. The tungsten film is formed through a process in which a silicon-containing gas is delivered to a wafer M placed within a processing container 14 and a process executed after the silicon-containing gas supply process, in which a first tungsten film 70 is formed by alternately executing multiple times, a tungsten-containing gas supply step for supplying a tungsten-containing gas and a hydrogen compound gas supply step for supplying a hydrogen compound gas with no silicon content with a purge step in which an inert gas is supplied into the processing container and/or an evacuation step for evacuating the processing container executed between the tungsten-containing gas supply step and the hydrogen compound gas supply step.
摘要:
Film forming equipment (20) is provided with a treatment container (22), a gas supplying system for supplying the container with a treatment gas including a film forming gas, and an exhaust system for exhausting the atmosphere in the container. In the treatment container, a placing table (46) having a placing plane for placing a flat board shaped body to be treated (W) is arranged. The body to be treated on the placing table is heated by a heater (80). A clamping apparatus (56) is provided to abut/separate to and from a surface peripheral part of the body to be treated, so as to press/release the body to be treated on and from the placing table. On the placing plane of the placing table, a suction structure (92) having a recessed part (94) is formed for temporarily sucking the body to be treated by pressure difference, by forming a substantially hermetic space between the placing plane and the rear plane of the body to be treated.
摘要:
The present invention is a heat processing method comprising: a placement step in which an object to be processed is placed on a stage disposed in a processing vessel whose inside atmosphere is capable of being discharged; and a heat processing step that is performed after the placement step, in which a temperature of the object to be processed is elevated to a predetermined set temperature and is maintained thereat by a heating unit that is activated by a power supply, and in which a predetermined gas is caused to flow into the processing vessel so as to perform a predetermined heat process to the object to be processed; wherein, immediately before the heat processing step, there is performed at least once a brief large-power supply step, in which a power larger than that to be supplied to the heating unit for maintaining the temperature of the object to be processed in the heat processing step is briefly supplied to the heating unit.
摘要:
A tungsten layer is formed on the surface of an object to be treated (e.g., a semiconductor wafer), supplying a process gas which includes a material gas of a tungsten fluoride (e.g., WF6) gas and a reducing gas (e.g., H2 gas) for reducing the material gas. In this case, an intermediate tungsten film forming step is carried out between a nuclear crystalline film forming step of forming a nuclear crystalline film of tungsten on the surface of the object and a main tungsten film forming step of forming a main tungsten film on the nuclear crystalline film. At the intermediate tungsten film forming step, an intermediate tungsten film is formed while the flow ratio of the material gas to the reducing gas is smaller than that at the main tungsten film forming step. Thus, the incubation time T2 after the deposition of the nuclear crystalline film is removed, so that it is possible to enhance the whole mean deposition rate and to improve the uniformity of the thickness between objects to be processed.
摘要:
A tungsten film with a lower specific resistance and a lower fluorine concentration over its boundary with the base barrier layer, which adheres to the barrier layer with a high level of reliability, compared to tungsten films formed through methods in the related art, is formed.The tungsten film is formed through a process in which a silicon-containing gas is delivered to a wafer M placed within a processing container 14 and a process executed after the silicon-containing gas supply process, in which a first tungsten film 70 is formed by alternately executing multiple times, a tungsten-containing gas supply step for supplying a tungsten-containing gas and a hydrogen compound gas supply step for supplying a hydrogen compound gas with no silicon content with a purge step in which an inert gas is supplied into the processing container and/or an evacuation step for evacuating the processing container executed between the tungsten-containing gas supply step and the hydrogen compound gas supply step.
摘要:
A wafer processing apparatus (14) has a wafer processing vessel (16). A wafer is mounted on a susceptor (22) included in the wafer processing apparatus. Process gases are supplied to the wafer through a shower head (74) disposed in an upper region within the processing vessel to carry out a predetermined process for processing the wafer. The surfaces of aluminum members (16, 74) employed in the wafer processing apparatus are subjected to an organic mechanical chemical polishing process, a blasting process and an aluminum oxide film forming process in that order. It is difficult for unnecessary films to adhere to the thus treated surfaces and it is difficult for unnecessary films deposited on the thus treated surfaces to come off the surfaces. Consequently, intervals between cleaning operations can be extended and production of particles can be suppressed.
摘要:
Film forming equipment (20) is provided with a treatment container (22), a gas supplying system for supplying the container with a treatment gas including a film forming gas, and an exhaust system for exhausting the atmosphere in the container. In the treatment container, a placing table (46) having a placing plane for placing a flat board shaped body to be treated (W) is arranged. The body to be treated on the placing table is heated by a heater (80). A clamping apparatus (56) is provided to abut/separate to and from a surface peripheral part of the body to be treated, so as to press/release the body to be treated on and from the placing table. On the placing plane of the placing table, a suction structure (92) having a recessed part (94) is formed for temporarily sucking the body to be treated by pressure difference, by forming a substantially hermetic space between the placing plane and the rear plane of the body to be treated.