Abstract:
Disclosed is a substrate processing apparatus for processing a processing target object by a processing gas. The substrate processing apparatus includes: a processing container configured to accommodate the processing target object; a mounting unit provided within the processing container to place the processing target object thereon; a processing gas supply unit provided in a side wall of the processing container to supply the processing gas into the processing container; and a processing gas diffusion mechanism provided outside the processing gas supply unit. The processing gas diffusion mechanism includes a first diffusion chamber and a second diffusion chamber which are provided in multiple stages, and the first diffusion chamber is located above the second diffusion chamber, and the first diffusion chamber and the second diffusion chamber communicate with each other through a plurality of processing gas communication paths.
Abstract:
Provided is a plasma processing apparatus comprising an exhaust path extending from the exhaust hole to the pump, wherein the pump is configured to depressurize inside of the processing container and the exhausting path, wherein the exhaust path includes a horizontally linearly extended portion, wherein the horizontally linearly extended portion of the exhaust path has a rectangular or oval cross-section having a horizontal length longer than a vertical length; wherein the plasma processing apparatus further includes a pressure control valve disposed in the horizontally linearly extended portion of the exhaust path; and wherein the pressure control valve is formed of a pressure control valve plate having substantially same shape and size as those of the cross-section and a shaft formed in the pressure control valve along the horizontal length of the cross-section, in such a manner that the pressure control valve plate rotates about the shaft.
Abstract:
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 arranged along a circle in a surface of the ceiling plate so as to form plural radially disposed virtual convex portions in a place between the concave portions, the surface facing toward an inside of the process chamber. A thickness of places where the concave portions are formed in the ceiling plate and another thickness of other places where the concave portions are not formed in the ceiling plate are determined so that the number of propagation modes of microwaves is different.
Abstract:
A plasma processing apparatus includes a processing chamber that air-tightly accommodates a substrate; a microwave supply unit that radiates microwaves into the processing chamber; a processing gas supply unit that supplies a processing gas into the processing chamber; and a substrate holding mechanism that holds the substrate within the processing chamber. A support shaft vertically passes through the bottom surface of the processing chamber to support the bottom surface of the substrate holding mechanism, and a rotary driving mechanism is provided outside the processing chamber to rotate the support shaft. In addition, a magnetic fluid seal air-tightly closes a gap between the support shaft and the processing chamber, and a choke mechanism is provided above the magnetic fluid seal to suppress the magnetic fluid seal from being heated by leakage of microwaves from the gap between the support shaft and the processing chamber.
Abstract:
Disclosed is a plasma processing apparatus including a processing container, a placing table provided in the processing container and configured to place a substrate thereon, a plasma generating mechanism attached to the processing container to face the placing table and configured to supply electronic energy for plasma generation into the processing container, a lattice-shaped member or a plurality of rod-shaped members provided at a position closer to the placing table than an intermediate position between the placing table and the plasma generating mechanism, and a moving mechanism configured to move the lattice-shaped member or the plurality of rod-shaped members and the placing table relative to each other.
Abstract:
Disclosed is a plasma processing apparatus that turns a processing gas into plasma so as to process a substrate. The plasma processing apparatus includes: a processing container configured to hermetically accommodate a substrate therein; a placement table installed on a bottom surface of the processing container, and configured to place the substrate thereon; a gas supply mechanism configured to supply at least one of a processing gas and a purge gas to an inside of the processing container through a gas supply pipe; a plasma generating mechanism configured to generate plasma of the processing gas within the processing container; an exhaust mechanism configured to exhaust the inside of the processing container through an exhaust pipe; and an ultrasonic vibration generating mechanism configured to apply ultrasonic vibration to a corner portion within the processing container.
Abstract:
A plasma processing apparatus of the present disclosure includes a processing container configured to accommodate a wafer; a placing unit provided on a bottom surface of the processing container to place the wafer thereon; a first processing gas supply pipe provided in a central portion of a ceiling of the processing container to supply a first processing gas into the processing container; a second processing gas supply pipe provided in a side wall of the processing container to supply a second processing gas into the processing container; a rectifying gas supply pipe provided in the side wall of the processing container above the second processing gas supply pipe to supply a rectifying gas downward into the processing container; and a radial line slot antenna configured to radiate microwave into the processing container.
Abstract:
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.
Abstract:
A plasma processing apparatus includes a processing chamber configured to partition a processing space and a microwave generator configured to generate microwaves for plasma excitation. Further, the plasma processing apparatus includes a dielectric member mounted in the processing chamber so as to seal the processing space, and configured to introduce the microwaves generated by the microwave generator into the processing space. Further, the plasma processing apparatus includes an injector mounted in the dielectric member, and configured to supply the processing gas made in a plasma state due to the microwaves to the processing space through a through-hole formed in the dielectric member. Further, the plasma processing apparatus includes a waveguide plate made of a dielectric material mounted in the injector so as to surround the through-hole of the dielectric member, and configured to guide the microwaves propagated into the dielectric member toward the through-hole to an inside of the injector.