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:
An object of the present invention is to ensure the stable operation of a vacuum pump for discharging an unused source gas and reaction byproduct gases from a low-pressure processing chamber, to recover the reaction byproducts efficiently for the effective utilization of resources and reduction of running costs. A low-pressure CVD system has a processing vessel (10) for carrying out a low-pressure CVD process for forming a copper film, a source gas supply unit (12) for supplying an organic copper compound as a source gas, such as Cu(I)hfacTMVS, into the processing vessel (10), and an evacuating system (14) for evacuating the processing vessel (10). The evacuating system (14) includes a vacuum pump (26), a high-temperature trapping device (28) disposed above the vacuum pump (26) with respect to the flowing direction of a gas, and a low-temperature trapping device (30) disposed below the vacuum pump with respect to the flowing direction of a gas. The high-temperature trapping device (28) decomposes the unused Cu(I)hfacTMVS contained in a gas sucked out of the processing vessel (10) to trap metallic copper. The low-temperature trapping device traps Cu(II)(hfac)2 produced as a reaction byproduct.
摘要:
A film-forming unit of the invention includes a processing container in which a vacuum can be created, a stage arranged in the processing container, on which an object to be processed is placed, a process-gas supplying means for supplying a process gas into the processing container, and a heating means for heating the object to be processed placed on the stage. A division wall surrounds a lateral side and a lower side of the stage. An inert gas is introduced into a stage-side region surrounded by the division wall, by an inert-gas supplying means. A gap-forming member is arranged in such a manner that its inner peripheral portion is arranged above a peripheral portion of the object to be processed placed on the stage via a gap and its outer peripheral portion is arranged above the division wall via a gap.
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 film is formed so that the atomic numbers ratio of Sr to Ti, i.e., Sr/Ti, in the film is not less than 1.2 and not more than 3. The film is then annealed in an atmosphere containing not less than 0.001% and not more than 80% of O2 at 500° C. or above. An SrO film forming step or a TiO film forming step are repeated a plurality of times so that a sequence, in which a plurality of SrO film forming steps or/and a plurality of TiO film forming steps are performed continuously, is included. When Sr is oxidized after the adsorption of Sr, O3 and H2O are used as an oxidizing agent.
摘要:
A film is formed so that the atomic numbers ratio of Sr to Ti, i.e., Sr/Ti, in the film is not less than 1.2 and not more than 3. The film is then annealed in an atmosphere containing not less than 0.001% and not more than 80% of O2 at 500° C. or above. An SrO film forming step or a TiO film forming step are repeated a plurality of times so that a sequence, in which a plurality of SrO film forming steps or/and a plurality of TiO film forming steps are performed continuously, is included. When Sr is oxidized after the adsorption of Sr, O3 and H2O are used as an oxidizing agent.
摘要:
Disclosed is a method for forming a Ge—Sb—Te film, in which a substrate is disposed within a process chamber, a gaseous Ge material, a gaseous Sb material, and a Te material are introduced into the process chamber, so that a Ge—Sb—Te film formed of Ge2Sb2Te5 is formed on the substrate by CVD. The method for forming a Ge—Sb—Te film comprises: a step (step 2) wherein the gaseous Ge material and the gaseous Sb material or alternatively a small amount of the gaseous Te material not sufficient for formed of Ge2Sb2Te5 in addition to the gaseous Ge material and the gaseous Sb material are introduced into the process chamber so that a precursor film, which does not contain Te or contains Te in an amount smaller than that in Ge2Sb2Te5, is formed on the substrate; and a step (step 3) wherein the gaseous Te material is introduced into the process chamber and the precursor film is caused to adsorb Te, so that the Te concentration in the film is adjusted.
摘要翻译:公开了一种形成Ge-Sb-Te膜的方法,其中将衬底设置在处理室内,气态Ge材料,气态Sb材料和Te材料被引入处理室中,使得Ge 由Ge2Sb2Te5形成的-Sb-Te膜通过CVD形成在基板上。 形成Ge-Sb-Te膜的方法包括:步骤(步骤2),其中气态Ge材料和气态Sb材料或替代地少量气态Te材料不足以形成Ge2Sb2Te5,除了气体 将Ge材料和气态Sb材料引入处理室,使得在基板上形成不含Te或含有Te的量的前体膜,其量小于Ge 2 Sb 2 Te 5中的Te; 和步骤(步骤3),其中将气态Te材料引入处理室,并使前体膜吸附Te,从而调节膜中的Te浓度。
摘要:
Disclosed is a method for Sr—Ti—O-base film formation. The method comprises placing a substrate with a Ru film formed thereon in a treatment vessel, introducing a gaseous Ti material, a gaseous Sr material, and a gaseous oxidizing agent into the treatment vessel to form a first Sr—Ti—O-base film having a thickness of not more than 10 nm on the Ru film, annealing the first Sr—Ti—O-base film for crystallization, introducing a gaseous Ti material, a gaseous Sr material, and a gaseous oxidizing agent into the treatment vessel to form a second Sr—Ti—O-base film on the first Sr—Ti—O-base film, and annealing the second Sr—Ti—O-base film for crystallization.
摘要:
A film-forming method includes a preprocessing step (step 1) wherein the inside of a processing chamber is exposed to a gas containing Cl and/or F in a state having no substrate in the processing chamber, and a step (step 2) wherein a substrate is loaded into the processing chamber after the step 1. Then, in a step 3, a gaseous Ge raw material, a gaseous Sb raw material, and a gaseous Te raw material are introduced into the processing chamber having the substrate loaded therein, and a Ge—Sb—Te film formed of Ge2Sb2Te5 is formed on the substrate by CVD.
摘要翻译:成膜方法包括在处理室内没有基板的状态下将处理室的内部暴露于含有Cl和/或F的气体的预处理步骤(步骤1)和步骤(步骤2),其中 在步骤1之后将基板装载到处理室中。然后,在步骤3中,将气态Ge原料,气态Sb原料和气态Te原料引入到其中装载有基板的处理室中, 并且通过CVD在基板上形成由Ge 2 Sb 2 Te 5形成的Ge-Sb-Te膜。
摘要:
A film-forming method includes a preprocessing step (step 1) wherein the inside of a processing chamber is exposed to a gas containing Cl and/or F in a state having no substrate in the processing chamber, and a step (step 2) wherein a substrate is loaded into the processing chamber after the step 1. Then, in a step 3, a gaseous Ge raw material, a gaseous Sb raw material, and a gaseous Te raw material are introduced into the processing chamber having the substrate loaded therein, and a Ge—Sb—Te film formed of Ge2Sb2Te5 is formed on the substrate by CVD.
摘要翻译:成膜方法包括在处理室内没有基板的状态下将处理室的内部暴露于含有Cl和/或F的气体的预处理步骤(步骤1)和步骤(步骤2),其中 在步骤1之后将基板装载到处理室中。然后,在步骤3中,将气态Ge原料,气态Sb原料和气态Te原料引入到其中装载有基板的处理室中, 并且通过CVD在基板上形成由Ge 2 Sb 2 Te 5形成的Ge-Sb-Te膜。