摘要:
A plasma process apparatus includes a dielectric plate to emit plasma inside a chamber, and dielectric plate support members to support a dielectric plate. A plurality of gas introduction holes to supply reaction gas to the chamber interior are provided at the dielectric plate support members. The outlet of the gas introduction hole is open at the side facing the surface of substrate 8, and arranged at a peripheral region outer than dielectric plate 5. Ground potential is applied to a chamber lid and the dielectric plate support members, and bias voltage is applied to the substrate. Accordingly, a low-cost plasma process apparatus that can process uniformly a substrate of a large area using uniform plasma can be obtained.
摘要:
A semiconductor storage device capable of high-speed writing and reading and having extremely high reliability. The semiconductor device includes a plurality of cells each having a semiconductor layer between a pair of conductors. At least one of the pair of conductors is made of a metal and the semiconductor layer is made of a-Si which forms a silicide region having a width of 150 nm or less by silicide reacting with the metal at a reaction speed of 10 m/sec or higher. Alternatively, at least one of the pair of conductors is made of a metal which silicide reacts with a-Si to form a silicide region having a conical structure with a diameter of 150 nm or less. Otherwise, at least one among the pair of conductors is formed of a metal which forms a silicide region of 150 nm or less by reacting with a-Si. The interface between the semiconductor layer and the conductors is not exposed to an external oxygen containing atmosphere during processing so that no oxygen containing compound exists at this interface.
摘要:
A ratio between gas conductances of a main gas passage and a plurality of branch gas passages is increased. A plasma processing apparatus is an apparatus for plasma-processing an object to be processed by exciting gas, and includes a processing container; a gas supply source for supplying a desired gas; a main gas passage distributing the gas supplied from the gas supply source; a plurality of branch gas passages connected to a lower stream side of the main gas passage; a plurality of throttle portions formed on the plurality of branch gas passages to narrow the branch gas passages; and one, two, or more gas discharging holes per each of the branch gas passages, for discharging the gas that has passed through the plurality of throttle portions formed on the plurality of branch gas passages into the processing container.
摘要:
A plasma processing apparatus can excite uniform plasma on a large substrate. The plasma processing apparatus 10 includes a vacuum chamber 100 having therein a mounting table 115 configured to mount a substrate G, and a plasma space, formed above the mounting table, in which plasma is generated; a first coaxial waveguide 225 through which a high frequency power for exciting plasma is supplied into the vacuum chamber 100; a waveguide path 205, connected to the first coaxial waveguide 225, having a slit-shaped opening toward the plasma space; and an adjusting unit configured to adjust a wavelength of the high frequency power propagating in the waveguide path in a lengthwise direction of the slit-shaped opening. By adjusting the wavelength of the high frequency power propagating in the waveguide path to be sufficiently lengthened, uniform plasma can be excited on the large substrate.
摘要:
Provided is a plasma processing apparatus having a coaxial waveguide structure in which characteristic impedance of an input side and characteristic impedance of an output side are different. A microwave plasma processing apparatus, which plasma-processes a substrate by exciting a gas by using a microwave, includes: a processing container; a microwave source, which outputs a microwave, a first coaxial waveguide, which transmits the microwave output from the microwave source; and a dielectric plate, which is adjacent to the first coaxial waveguide while facing an inner side of the processing container, and emits the microwave transmitted from the first coaxial waveguide into the processing container. A thickness ratio between an inner conductor and an outer conductor of the first coaxial waveguide is not uniform along a longitudinal direction.
摘要:
In a microwave plasma processing apparatus, a metal made lattice-like shower plate 111 is provided between a dielectric material shower plate 103, and a plasma excitation gas mainly an inert gas and a process gas are discharged form different locations. High energy ions can be incident on a surface of the substrate 114 by grounding the lattice-like shower plate. The thickness of each of the dielectric material separation wall 102 and the dielectric material at a microwave introducing part is optimized so as to maximize the plasma excitation efficiency, and, at the same time, the distance between the slot antenna 110 and the dielectric material separation wall 102 and a thickness of the dielectric material shower plate 103 are optimized so as to be capable of supplying a microwave having a large power.
摘要:
In a film formation method of a semiconductor device including a plurality of silicon-based transistors or capacitors, there exist hydrogen at least in a part of the silicon surface in advance, and the film formation method removes the hydrogen by exposing the silicon surface to a first inert gas plasma. Thereafter a silicon compound layer is formed on the surface of the silicon gas by generating plasma while using a mixed gas of a second inert gas and one or more gaseous molecules, such that there is formed a silicon compound layer containing at least a pat of the elements constituting the gaseous molecules, on the surface of the silicon gas.
摘要:
[Problem] To precisely measure a standing wave to be an indication for comprehending a guide wavelength λg or the like in a waveguide.[Means for Solving] A distribution of temperatures is detected in a conductive member forming at least a part of pipe walls of a waveguide with respect to a longitudinal direction of a waveguide which propagates an electromagnetic wave, and a standing wave generated in the waveguide is measured based on the temperature distribution. The temperature distribution in the conductive member with respect to the longitudinal direction of the waveguide can be measured precisely with a plurality of temperature sensors disposed along the longitudinal direction of the waveguide, a temperature sensor which moves along the longitudinal direction of the waveguide, or an infrared camera.
摘要:
In a microwave plasma processing apparatus, a metal made lattice-like shower plate 111 is provided between a dielectric material shower plate 103, and a plasma excitation gas mainly an inert gas and a process gas are discharged form different locations. High energy ions can be incident on a surface of the substrate 114 by grounding the lattice-like shower plate. The thickness of each of the dielectric material separation wall 102 and the dielectric material at a microwave introducing part is optimized so as to maximize the plasma excitation efficiency, and, at the same time, the distance between the slot antenna 110 and the dielectric material separation wall 102 and a thickness of the dielectric material shower plate 103 are optimized so as to be capable of supplying a microwave having a large power.
摘要:
In a film formation method of a semiconductor device including a plurality of silicon-based transistors or capacitors, there exist hydrogen at least in a part of the silicon surface in advance, and the film formation method removes the hydrogen by exposing the silicon surface to a first inert gas plasma. Thereafter a silicon compound layer is formed on the surface of the silicon gas by generating plasma while using a mixed gas of a second inert gas and one or more gaseous molecules, such that there is formed a silicon compound layer containing at least a pat of the elements constituting the gaseous molecules, on the surface of the silicon gas.