Abstract:
Provided is a plasma treatment apparatus capable of uniform substrate treatment by correction of unevenness in a plasma density distribution. The apparatus has a configuration such that a substrate is treated with plasma, and an evacuated container is provided with an annular antenna arranged around an outer periphery of the container, and is formed of a power supply container, and a process container where the substrate is placed, which communicates with an internal space of the power supply container. The plasma is generated in the power supply container by radio-frequency power supplied to the antenna. The plasma is diffused into the process container by a magnetic field of solenoid coils arranged around an outer periphery of the antenna. The inclination of the magnetic field is adjusted by an inclination adjustment means for adjusting the inclination of the solenoid coils with respect to the process substrate.
Abstract:
This surface processing apparatus has a reactor in which plasma is generated and a substrate whose surface is to be processed by the plasma is arranged, and a magnet plate for creating a point-cusp magnetic field distributed in an inner space of the reactor, in which the plasma is generated. The magnet plate has a plurality of magnets. These magnets are arranged by a honeycomb lattice structure in a circular plane facing in parallel a surface of the substrate. One magnetic pole end face of each of magnets is arranged at a position of each of the lattice points forming hexagonal shapes on the circular plane. The polarities of the magnetic pole end faces of two adjoining magnets are arranged to become opposite alternately. The magnet plate may be provided with a plurality of magnets arranged by a lattice structure forming a square and the magnetic force (coercive force) of some of the magnets arranged at the outermost region is reduced. Thereby, the periodicity of the point-cusp magnetic field in the inside space is maintained as much as possible even at the peripheral edge and the asymmetry of the distribution of the magnetic field at the region where the periodicity is disturbed at the peripheral edge is reduced.
Abstract:
A method of using a heat exchanger efficiently and uniformly to cool or heats portions to be controlled to a prescribed temperature, and then continuously carry out stable processing. The heat exchanger is constructed by arranging partition walls between two plates to form a fluid channel and a fin parallel with the channel or inclined by a prescribed angle on each of the two plates insides the channel so that the plate or a member in contact with the plate is cooled or heated with the fluid flowing through the channel.
Abstract:
A surface processing apparatus includes a process chamber including a gas ejection mechanism; an exhaust for exhausting the inside of said process chamber; and a gas supply for supplying a gas to the gas ejection mechanism. The gas ejection mechanism includes a first gas distribution mechanism for distributing the gas into a cooling or heating mechanism, including a gas distribution plate placed in the frame member, the gas distribution plate having a plurality of holes that extend therethrough, the cooling or heating mechanism having multiple gas passages that extend therethrough, the plate having a number of outlets to eject the gas into the process chamber, wherein there are more outlets in the plate than there are gas passages, and the plate is fixed to a second gas distribution mechanism with a clamping member.
Abstract:
This application discloses an insulation-film etching system that etches an insulator film on a substrate by a species produced in plasma. The apparatus comprises a process chamber in which the etching process is carried out, a substrate holder that is provided in the process chamber and holds the substrate, a gas introduction line to introduce a gas having an etching function into the process chamber, a plasma generator to generate the plasma of the introduced gas, and a transfer mechanism to transfer the substrate into the process chamber and to transfer the substrate out of the process chamber. The gas introduction line is capable of introducing a gas having a cleaning function to remove a deposited film on an exposed surface in the process chamber, instead of the gas for the etching. The system comprises a control unit that carries out the sequence control. According as the sequence control, the cleaning is carried out after the etching.
Abstract:
A brine supply unit for supplying brine to at least one load after controlling the brine so as to meet a target temperature of the load comprises: a heat exchanger disposed at a brine-cooling channel, through which the brine returned from the load flows, for cooling the brine with water for industrial use; a heater disposed at a brine-heating channel formed in parallel with the brine-cooling channel, through which the brine flows, for heating the brine; a mixing section disposed at a connecting portion between the brine-cooling channel and the brine-heating channel, for mixing the cooled brine and the heated brine; and a tank disposed between the mixing section and the load, which has a capacity of about 10 liters or more and is constructed so that the brine can pass therethrough slowly to relieve a sudden temperature change of the brine.
Abstract:
This application discloses a High-Frequency plasma processing apparatus comprising a process chamber in which a substrate to be processed is placed, a process-gas introduction line for introducing a process gas into the process chamber, a first HF electrode provided in the process chamber, a first HF power source for applying voltage to the first HF electrode, thereby generating plasma of the process gas. The apparatus further comprises a second HF electrode facing the first HF electrode in the process chamber, interposing discharge space, and a series resonator connecting the second HF electrode and the ground. The frequency of the first HF power source is not lower than 30 MHz. The series resonator is resonant as the distributed constant circuit at the frequency of the first HF power source.
Abstract:
A surface processing apparatus includes a process chamber including a gas ejection mechanism; an exhaust for exhausting the inside of said process chamber; and a gas supply for supplying a gas to the gas ejection mechanism. The gas ejection mechanism includes a a first gas distribution mechanism for distributing the gas into a cooling or heating mechanism, including a gas distribution plate placed in the frame member, the gas distribution plate having a plurality of holes that extend therethrough, the cooling or heating mechanism having multiple gas passages that extend therethrough, the plate having a number of outlets to eject the gas into the process chamber, wherein there are more outlets in the plate than there are gas passages, and the plate is fixed to a second gas distribution mechanism with a clamping member.
Abstract:
This application discloses a High-Frequency plasma processing apparatus comprising a process chamber in which a substrate to be processed is placed, a process-gas introduction line for introducing a process gas into the process chamber, a first HF electrode provided in the process chamber, a first HF power source for applying voltage to the first HF electrode, thereby generating plasma of the process gas. The apparatus further comprises a second HF electrode facing the first HF electrode in the process chamber, interposing discharge space, and a series resonator connecting the second electrode and the ground. The frequency of the first HF power source is not lower than 30 MHz. The series resonator is resonant as the distributed constant circuit at the frequency of the first HF power source.
Abstract:
This invention presents an ESC mechanism for chucking an object electro-statically on a chucking surface, comprising a stage having a dielectric block of which surface is the chucking surface, and a chucking electrode provided in the dielectric block. A temperature controller is provided with the stage for controlling temperature of the object. A chucking power source to apply voltage to the chucking electrode is provided so that the object is chucked. The chucking surface has concaves of which openings are shut by the chucked object. A heat-exchange gas introduction system that introduces heat-exchange gas into the concaves is provided. The concaves include a heat-exchange concave for promoting heat-exchange between the stage and the object under increased pressure, and a gas-diffusion concave for making the introduced gas diffuse to the heat-exchange concave. The gas-diffusion concave is deeper than the heat-exchange concave. This invention also presents a surface processing apparatus, comprising a process chamber in which a surface of an object is processed, and the electro-static chucking mechanism of the same composition.