摘要:
A process monitoring device 11 includes a light source unit that outputs light; a light detection unit that detects an intensity of light; a first optical path 21 that guides the light outputted from the light source unit to a wafer W and guides reflection light from the wafer W to the light detection unit; a second optical path that has a light propagation characteristic equivalent to that of the first optical path 21 and guides the light outputted from the light source unit to the light detection unit without allowing the light to pass the wafer W; and a controller 17 that corrects intensity information of the light detected by the light detection unit via the first optical path 21 based on intensity information of the light detected by the light detection unit via the second optical path, and analyzes a structure of the wafer W.
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:
A shower plate is disposed in a processing chamber in a plasma processing apparatus, and plasma excitation gas is released into the processing chamber so as to generate plasma. A ceramic member having a plurality of gas release holes having a diameter of 20 μm to 70 μm, and/or a porous gas-communicating body having pores having a maximum diameter of not more than 75 μm communicating in the gas-communicating direction are sintered and bonded integrally with the inside of each of a plurality of vertical holes which act as release paths for the plasma excitation gas.
摘要:
A plasma processing apparatus includes a chamber for carrying out plasma processing inside, a top plate made of a dielectric material for sealing the upper side of this chamber, and an antenna section that serves as a high frequency supply for supplying high frequency waves into the chamber via this top plate. The top plate is provided with reflecting members inside thereof. The sidewalls of the reflecting members work as wave reflector for reflecting high frequency waves that propagate inside the top plate in the radius direction. Alternatively, no reflecting members may be provided in a manner in which the sidewalls of a recess of the top plate serve as a wave reflector means.
摘要:
To enable suitable plasma processing with reduced damage to a processing target ascribable to plasma generation. In a plasma processing apparatus including at least: a plasma processing chamber in which plasma processing is applied to a processing target; a processing target supporting means for setting the processing target in the plasma processing chamber; and a plasma generating means for generating a plasma in the plasma processing chamber, the present invention uses the plasma generating means that is capable of supplying intermittent energy.
摘要:
A plasma processing device comprising a chamber (1), a high-frequency power supply and an antenna unit (3). The antenna unit (3) comprises a slot plate (3c) , a slow wave plate (3b) and an antenna cover (3a) . A top plate unit (4) having a flat plate (4a) and sidewalls (4b) is disposed at the upper portion of the chamber (1). The flat plate (4a) contacts the slot plate (3c) disposed to face a housed substrate (11). The sidewalls (4b) are formed so as to extend toward a substrate-disposed side from the periphery of the flat plate (4a) . The outer periphery surfaces of sidewalls (4b) contact the chamber (1). The thickness of the sidewalls (4b) is set to be at least λg/4, where λg is the wavelength of a microwave based on the permittivity of the top plate (4). Accordingly, a plasma density can be further increased and a uniformity in plasma density distribution can be improved.
摘要:
Provided is a holding stage structure which holds a substrate and disposed in a process chamber that is vacuum-evacuatable and allows a predetermined process to be performed on the substrate therein. The holding stage structure includes: a holding stage body on which the substrate is placed; an elevation pin mechanism lowering the substrate on the holding stage body or raising the substrate from the holding stage body; and a stepped portion formed on the holding stage body so that a peripheral portion of a rear surface of the substrate placed on the holding stage body is exposed to a processing gas supplied into the process chamber.
摘要:
Resonance can be surely provided under any plasma condition in such a manner that an antenna (3) is arranged in an opening of an upper part of a chamber (1) to produce an electromagnetic field generated by a microwave, a top plate (4) for sealing the opening of the chamber (1) is provided under the antenna (3), a ring-shaped ridge (41) is provided on a lower surface of the top plate (4) such that a thickness thereof in a diameter direction is tapered so as to be varied sequentially. Thus, only one kind of top plate has the same effect as a top plate having various thicknesses, so that absorption efficiency to the plasma can be considerably improved and the plasma can be generated stably over a range from a high pressure to a low pressure.
摘要:
Provided is a holding stage structure which holds a substrate and disposed in a process chamber that is vacuum-evacuatable and allows a predetermined process to be performed on the substrate therein. The holding stage structure includes: a holding stage body on which the substrate is placed; an elevation pin mechanism lowering the substrate on the holding stage body or raising the substrate from the holding stage body; and a stepped portion formed on the holding stage body so that a peripheral portion of a rear surface of the substrate placed on the holding stage body is exposed to a processing gas supplied into the process chamber.