摘要:
A silicon oxide film forming method includes a step of placing an object to be processed and having a surface having a projecting/recessed pattern and containing silicon in a processing vessel of a plasma processing apparatus, a step of producing a plasma from a processing gas containing oxygen at a proportion of 5 to 20% under a processing pressure of 267 to 400 Pa in the processing vessel, and a step of forming a silicon oxide film by oxidizing silicon in the surface of the object to be processed by the plasma.
摘要:
A plasma oxidizing method includes a step of placing an object to be processed and having a surface containing silicon on a susceptor disposed in a processing vessel of a plasma processing apparatus, a step of producing a plasma from a processing gas containing oxygen in the processing vessel, a step of supplying high-frequency electric power to the susceptor and applying a high-frequency bias to the object to be processed when the plasma is produced, and a step of forming a silicon oxide film by oxidizing silicon in the surface of the object to be processed by the plasma.
摘要:
The present invention provides a method for forming a silicon oxide film, with a substantially uniform film thickness and without being so influenced by dense sites and scattered sites in a pattern provided on an object to be processed, while keeping advantageous points of a plasma oxidation process performed under a lower-pressure and lower-oxygen-concentration condition. In this method, plasma of a processing gas is applied to a surface of the object having a concavo-convex pattern, in a processing chamber of a plasma processing apparatus, so as to oxidize silicon on the surface of the object, thereby forming the silicon oxide film. The plasma is generated under the condition that a ratio of oxygen in the processing gas is within a range of 0.1% to 10% and pressure is within a range of 0.133 Pa to 133.3 Pa. This plasma oxidation process is performed, with a plate, having a plurality of through-holes formed therein, being provided between a region for generating the plasma in the processing chamber and the object to be processed.
摘要:
A plasma oxidizing method includes a step of placing an object to be processed and having a surface containing silicon on a susceptor disposed in a processing vessel of a plasma processing apparatus, a step of producing a plasma from a processing gas containing oxygen in the processing vessel, a step of supplying high-frequency electric power to the susceptor and applying a high-frequency bias to the object to be processed when the plasma is produced, and a step of forming a silicon oxide film by oxidizing silicon in the surface of the object to be processed by the plasma.
摘要:
A silicon oxide film is formed in a processing chamber of a plasma processing apparatus by performing oxidation process, by using plasma to a processing object having a patterned irregularity, wherein the plasma is generated while high-frequency power is supplied to a mount table under the conditions that the oxygen content in a process gas is not less than 0.5% and less than 10% and the process pressure is 1.3 to 665 Pa.
摘要:
A plasma oxidizing method in which a plasma is produced in a processing chamber of a plasma processing apparatus under a processing condition that the proportion of oxygen in the processing gas is 20% or more and the processing pressure is 400 to 1333 Pa, and silicon exposed from the surface of an object to be processed is oxidized by the plasma to form a silicon oxide film.
摘要:
A silicon oxide film is formed in a processing chamber of a plasma processing apparatus by performing oxidation process, by using plasma to a processing object having a patterned irregularity, wherein the plasma is generated while high-frequency power is supplied to a mount table under the conditions that the oxygen content in a process gas is not less than 0.5% and less than 10% and the process pressure is 1.3 to 665 Pa.
摘要:
A plasma oxidizing method in which a plasma is produced in a processing chamber of a plasma processing apparatus under a processing condition that the proportion of oxygen in the processing gas is 20% or more and the processing pressure is 400 to 1333 Pa, and silicon exposed from the surface of an object to be processed is oxidized by the plasma to form a silicon oxide film.
摘要:
The present invention provides a method for forming a silicon oxide film, which has excellent insulating properties and higher quality that can enhance a yield in manufacture of semiconductor devices, while keeping advantageous points in a plasma oxidation process. In this method, plasma is generated under a first process condition that a ratio of oxygen in a processing gas is 1% or less and pressure is within a range of 0.133 to 133 Pa, so as to form the silicon oxide film, by oxidizing silicon on a surface of an object to be processed including silicon as a main component, by using the plasma (first oxidation step). Following the first oxidation step, the plasma is generated under a second process condition that the ratio of oxygen in the processing gas is 20% or more and the pressure is within a range of 400 to 1333 Pa, so as to form an additional silicon oxide film, by further oxidizing the surface of the object to be processed, by using the plasma (second oxidation step).
摘要:
When nitriding a tunnel oxide film in a nonvolatile memory device a nitrided region is formed in the surface portion of the tunnel oxide film by a plasma processing using a process gas containing nitrogen gas.