摘要:
A ceiling plate provided at a ceiling portion of a process chamber that may be evacuated to a vacuum is disclosed. The ceiling plate allows microwaves emitted from a slot of a planar antenna member provided along with the ceiling plate to pass through the ceiling plate into the process chamber, and includes plural protrusion portions provided in a radial pattern on a surface of the ceiling plate, the surface facing toward an inside of the process chamber.
摘要:
A ceiling plate provided at a ceiling portion of a process chamber that may be evacuated to a vacuum is disclosed. The ceiling plate allows microwaves emitted from a slot of a planar antenna member provided along with the ceiling plate to pass through the ceiling plate into the process chamber, and includes plural concave portions provided along a circle on a surface of the ceiling plate, the surface facing toward an inside of the process chamber.
摘要:
The present invention relates to a plasma processing apparatus including: a processing chamber whose ceiling portion is opened and the inside thereof can be evacuated to vacuum; a ceiling plate which is made of dielectric material and is airtightly mounted to an opening of the ceiling portion; a planar antenna member which is installed on a top surface of the ceiling plate, for introducing a microwave into the processing chamber; and a coaxial waveguide, which has a central conductor connected to the planar antenna member, for supplying the microwave, wherein a gas passage is formed to pass through the central conductor, the planar antenna member, and the ceiling plate, and an electric field attenuating recess for attenuating an electric field intensity of the center portion of the ceiling plate is installed on a top surface of a center area of the ceiling plate.
摘要:
The present invention relates to a plasma processing apparatus including: a processing chamber whose ceiling portion is opened and the inside thereof can be evacuated to vacuum; a ceiling plate which is made of dielectric material and is airtightly mounted to an opening of the ceiling portion; a planar antenna member which is installed on a top surface of the ceiling plate, for introducing a microwave into the processing chamber; and a coaxial waveguide, which has a central conductor connected to the planar antenna member, for supplying the microwave, wherein a gas passage is formed to pass through the central conductor, the planar antenna member, and the ceiling plate, and an electric field attenuating recess for attenuating an electric field intensity of the center portion of the ceiling plate is installed on a top surface of a center area of the ceiling plate.
摘要:
A plasma processing system for treating a substrate includes a processing chamber including a first chamber portion configured to receive a first gas for providing a plasma space, and a second chamber portion configured to receive a second gas for providing a process space having process chemistry to treat the substrate. A substrate holder is coupled to the second chamber portion of the processing chamber, and configured to support the substrate proximate the process space, and a plasma source is coupled to the first chamber portion of the processing chamber, and configured to form a plasma in the plasma space. A grid is located between the plasma space and the process space, and configured to permit the diffusion of the plasma between the plasma space and the process space in order to form the process chemistry from the process gas.
摘要:
In a plasma processing apparatus that processes a wafer in a process vessel by plasma generated by the supply of a microwave, a transmissive window has, in a center area of its lower surface, a hanging portion made of the same material as a material of the transmissive window. Between an outer peripheral surface of the hanging portion and a sidewall inner surface continuing from a support part, a gap is formed, the gap having a gap length of 0.5 to 10 mm, more preferably 0.5 to 5 mm. The generation of a strong electric field and plasma at a contact point is inhibited and an amount of sputtered particles, radicals, or the like reaching the wafer is also reduced.
摘要:
To improve processing quality by inhibiting the generation of a strong electric field and high-density plasma, near a contact point between a support part supporting a transmissive window and the transmissive window in a plasma processing apparatus utilizing a microwave. In a plasma processing apparatus that processes a wafer W in a process vessel 2 by plasma generated by the supply of a microwave, a transmissive window 20 has, in a center area of its lower surface, a hanging portion 21 made of the same material as a material of the transmissive window 20. Between an outer peripheral surface 21a of the hanging portion 21 and a sidewall inner surface 5a continuing from a support part 6, a gap d is formed, the gap d having a gap length of 0.5 to 10 mm, more preferably 0.5 to 5 mm. The generation of a strong electric field and plasma at the contact point C is inhibited and an amount of sputtered particles, radicals, or the like reaching the wafer W is also reduced.
摘要:
There is provided a plasma etching apparatus provided for performing an etching in a desirable shape. The plasma etching apparatus includes a processing chamber 12 for performing a plasma process on a target substrate W; a gas supply unit 13 for supplying a plasma processing gas into the processing chamber 12; a supporting table positioned within the processing chamber 12 and configured to support the target substrate thereon; a microwave generator 15 for generating a microwave for plasma excitation; a plasma generation unit for generating plasma within the processing chamber 12 by using the generated microwave; a pressure control unit for controlling a pressure within the processing chamber 12; a bias power supply unit for supplying AC bias power to the supporting table 14; and a control unit for controlling the AC bias power by alternately repeating supply and stop of the AC bias power.
摘要:
A method of treating a substrate includes disposing the substrate in a processing chamber having a first chamber portion configured to define a plasma space and a second chamber portion configured to define a process space, introducing a first gas to the plasma space and introducing a second gas to the process space. A plasma is formed in the plasma space from the first gas using a plasma source coupled to the upper chamber portion, and a process chemistry for treating the substrate is formed in the process space by providing a grid positioned between the first chamber portion and the second chamber portion such that the plasma can diffuse from the plasma space to the process space.
摘要:
There is provided a plasma etching apparatus provided for performing an etching in a desirable shape. The plasma etching apparatus includes a processing chamber 12 for performing a plasma process on a target substrate W; a gas supply unit 13 for supplying a plasma processing gas into the processing chamber 12; a supporting table positioned within the processing chamber 12 and configured to support the target substrate thereon; a microwave generator 15 for generating a microwave for plasma excitation; a plasma generation unit for generating plasma within the processing chamber 12 by using the generated microwave; a pressure control unit for controlling a pressure within the processing chamber 12; a bias power supply unit for supplying AC bias power to the supporting table 14; and a control unit for controlling the AC bias power by alternately repeating supply and stop of the AC bias power.