摘要:
A metal film forming method, includes the steps of (a) (s13, s15) supplying a plural kinds of ingredient gases to a base barrier film (3) in sequence, wherein at least one of the gases includes a metal, and (b) (s14, s16) vacuum-exhausting the ingredient gases of the step (a) or substituting the ingredient gases of the step (a) by an other kind of gas after the ingredient gases of the step (a) are supplied respectively, thereby an extremely thin film (5) of the metal is formed on the base barrier film (3).
摘要:
A method is provided for forming a metal layer on a substrate using an intermittent precursor gas flow process. The method includes exposing the substrate to a reducing gas while exposing the substrate to pulses of a metal-carbonyl precursor gas. The process is carried out until a metal layer with desired thickness is formed on the substrate. The metal layer can be formed on a substrate, or alternately, the metal layer can be formed on a metal nucleation layer.
摘要:
A method is provided for forming a metal layer on a substrate using an intermittent precursor gas flow process. The method includes exposing the substrate to a reducing gas while exposing the substrate to pulses of a metal-carbonyl precursor gas. The process is carried out until a metal layer with desired thickness is formed on the substrate. The metal layer can be formed on a substrate, or alternately, the metal layer can be formed on a metal nucleation layer.
摘要:
A metal CVD process includes a step (A) of introducing a gaseous source material containing a metal carbonyl compound into a process space adjacent to a surface of a substrate to be processed in such a manner that the metal carbonyl compound has a first partial pressure, and a step (B) of depositing a metal film on the surface of the substrate by introducing a gaseous source material containing the metal carbonyl compound into the process space in such a mater that the metal carbonyl compound has a second, smaller partial pressure. The step (A) is conducted such that there is caused no substantial deposition of the metal film on the substrate.
摘要:
A semiconductor device fabricating method includes a preparatory process that brings a first source gas containing tungsten atoms into contact with a workpiece and that does not bring a second source gas containing nitrogen atoms into contact with the workpiece, and a film forming process that forms a tungsten nitride film on the workpiece by using the first and the second source gases so as to fabricate a semiconductor device. The semiconductor device fabricating method is capable of preventing the tungsten nitride film from peeling off from a layer underlying the same when the tungsten nitride film is subjected to heat treatment.
摘要:
A method for depositing Ru and Re metal layers on substrates with high deposition rates, low particulate contamination, and good step coverage on patterned substrates is presented. The method includes providing a substrate in a process chamber, introducing a process gas in the process chamber in which the process gas comprises a carrier gas and a metal precursor selected from the group consisting of a ruthenium-carbonyl precursor and a rhenium-carbonyl precursor. The method further includes depositing a Ru or Re metal layer on the substrate by a thermal chemical vapor deposition process at a process chamber pressure less than about 20 mTorr.
摘要:
A raw material feeding device for feeding a gaseous raw material formed by sublimating a solid raw material to a film formation system includes a raw material container for holding the solid raw material therein, a first heating unit placed at a first side of the container, a second heating unit placed at a second side thereof, the first temperature control unit for conducting a first process of controlling the first and the second heating unit to make the temperature of the first side higher than that of the second side to thereby sublimate the solid raw material disposed at the first side, and the second temperature control unit for conducting a second process of controlling the first and the second heating unit to make the temperature of the second side higher than that of the first side to thereby sublimate the solid raw material disposed at the second side.
摘要:
A semiconductor substrate is placed in a predetermined processing vessel, and oxygen gas activated by, e.g. conversion into a plasma is supplied onto an insulating film. The surfaces of an interlevel insulating film and insulating film are exposed to the activated oxygen gas. After that, a transition metal film, e.g. a ruthenium film, is formed by CVD.
摘要:
A method for depositing metal layers on semiconductor substrates by a thermal chemical vapor deposition (TCVD) process includes introducing a process gas containing a metal carbonyl precursor in a process chamber and depositing a metal layer on a substrate. The TCVD process utilizes a short residence time for the gaseous species in the processing zone above the substrate to form a low-resistivity metal layer. In one embodiment of the invention, the metal carbonyl precursor can be selected from at least one of W(CO)6, Ni(CO)4, Mo(CO)6, Co2(CO)8, Rh4(CO)12, Re2(CO)10, Cr(CO)6, and Ru3(CO)12 precursors. In another embodiment of the invention, a method is provided for depositing low-resistivity W layers at substrate temperatures below about 500° C., by utilizing a residence time less than about 120 msec.
摘要:
A method of forming a metal film using a metal carbonyl compound as a material is disclosed that includes the steps of: (a) introducing a reactive gas into a space near a surface of a substrate to be processed; and (b) introducing a gaseous phase material including the metal carbonyl compound into the space on the surface of the substrate to be processed, and depositing the metal film on the surface of the substrate to be processed after step (a). Step (a) is executed in such a manner as to prevent substantial deposition of the metal film on the substrate to be processed.