摘要:
A ring mechanism, comprising a focus ring and divided cover rings surrounding a wafer W placed on a loading table (lower electrode) mounted in a processing chamber, wherein a ring-shaped clearance δ1 is provided between the divided rings to spread plasma to the radial outside of the focus ring to allow plasma to get therein, whereby a potential difference between the wafer W and the focus ring can be eliminated to prevent arc discharge by plasma from occurring between the wafer W and the focus ring.
摘要:
A ring mechanism, comprising a focus ring and divided cover rings surrounding a wafer W placed on a loading table (lower electrode) mounted in a processing chamber, wherein a ring-shaped clearance δ1 is provided between the divided rings to spread plasma to the radial outside of the focus ring to allow plasma to get therein, whereby a potential difference between the wafer W and the focus ring can be eliminated to prevent arc discharge by plasma from occurring between the wafer W and the focus ring.
摘要:
A focus ring and a plasma processing apparatus capable of improving an in-surface uniformity of a surface and reducing occurrences of deposition on a backside surface of a peripheral portion of a semiconductor wafer compared to a conventional case are provided. Installed in a vacuum chamber is a susceptor for mounting the semiconductor wafer thereon and a focus ring is installed to surround the semiconductor wafer mounted on the susceptor. The focus ring includes an annular lower member made of a dielectric, and an annular upper member made of a conductive material and mounted on the lower member. The upper member includes a flat portion which is an outer peripheral portion having a top surface positioned higher than a surface to be processed of the semiconductor wafer W, and an inclined portion which is an inner peripheral portion inclined inwardly.
摘要:
A focus ring and a plasma processing apparatus capable of improving an in-surface uniformity of a surface and reducing occurrences of deposition on a backside surface of a peripheral portion of a semiconductor wafer compared to a conventional case are provided. Installed in a vacuum chamber is a susceptor for mounting the semiconductor wafer thereon and a focus ring is installed to surround the semiconductor wafer mounted on the susceptor. The focus ring includes an annular lower member made of a dielectric, and an annular upper member made of a conductive material and mounted on the lower member. The upper member includes a flat portion which is an outer peripheral portion having a top surface positioned higher than a surface to be processed of the semiconductor wafer W, and an inclined portion which is an inner peripheral portion inclined inwardly.
摘要:
A plasma processing apparatus includes a process container configured to have a vacuum atmosphere therein. An upper electrode is disposed to face a target substrate placed within the process container. An electric feeder includes a first cylindrical conductive member continuously connected to the upper electrode in an annular direction. The electric feeder is configured to supply a first RF output from a first RF power supply to the upper electrode.
摘要:
A plasma processing apparatus includes a process container configured to have a vacuum atmosphere therein. A first upper electrode is disposed to have a ring shape and to face a target substrate placed within the process container. A second upper electrode is disposed radially inside the first upper electrode and electrically insulated therefrom. A first electric feeder is configured to supply a first RF output from a first RF power supply to the first upper electrode at a first power value. A second electric feeder branches from the first electric feeder and is configured to supply the first RF output from the first RF power supply to the second upper electrode at a second power value smaller than the first power value.
摘要:
A plasma processing apparatus enabling reduction of the deposition of CF polymers in a processing chamber. The plasma processing apparatus (1) comprises a plasma processing vessel (3) having a large diameter at the lower portion and a small diameter at the upper portion to define a processing chamber (2) inside the vessel. The pressure in the processing chamber (2) is reduced to a predetermined vacuum atmosphere, and a processing gas containing a CF gas is introduced into the processing chamber (2) and changed to a plasma, and thereby a semiconductor wafer (34) is subjected to a desired microprocessing. A Y2O3 sprayed coating (41) is formed over a predetermined area of an inner wall (3b) of the plasma processing vessel (3) so that solid particles of CF polymers produced from the decomposition components of the CF gas by the plasma may be prevented from flying and adhering to the inner wall (3b) and the surface of the parts in the processing chamber, and the CF polymers may be prevented from depositing.
摘要翻译:一种能够减少CF聚合物在处理室中的沉积的等离子体处理装置。 等离子体处理装置(1)包括在下部具有大直径的等离子体处理容器(3),并且在上部具有小直径以在容器内限定处理室(2)。 处理室(2)中的压力降低到预定的真空气氛,并且将含有CF气体的处理气体引入处理室(2)并变成等离子体,从而使半导体晶片(34) 到期望的微处理。 在等离子体处理容器(3)的内壁(3b)的预定区域上形成AY 2 O 3喷涂涂层(41),使得固体颗粒 可以防止由等离子体的CF气体的分解成分产生的CF聚合物飞散并粘附到内壁(3b)和处理室中的部件的表面,并且可以防止CF聚合物沉积。
摘要:
A plasma processing method includes supplying a low-frequency bias to a first electrode carrying a substrate, and supplying a high-frequency power to a second electrode facing the first electrode, wherein the low-frequency bias is supplied to the first electrode in advance of staring plasma by the energy of the high-frequency power, with an electric power sufficient to form an ion-sheath on a surface of the substrate. A plasma processing apparatus is also provided.
摘要:
A plasma processing method is arranged to supply a predetermined process gas into a plasma generation space in which a target substrate is placed, and turn the process gas into plasma. The substrate is subjected to a predetermined plasma process by this plasma. The spatial distribution of density of the plasma and the spatial distribution of density of radicals in the plasma are controlled independently of each other relative to the substrate by a facing portion opposite the substrate to form a predetermined process state over the entire target surface of the substrate.
摘要:
A plasma processing apparatus includes a process container configured to have a vacuum atmosphere therein. A first upper electrode is disposed to have a ring shape and to face a target substrate placed within the process container. A second upper electrode is disposed radially inside the first upper electrode and electrically insulated therefrom. A first electric feeder is configured to supply a first RF output from a first RF power supply to the first upper electrode at a first power value. A second electric feeder branches from the first electric feeder and is configured to supply the first RF output from the first RF power supply to the second upper electrode at a second power value smaller than the first power value.