摘要:
There is disclosed an electron shower apparatus which eliminates the adverse effect of a magnetic field on electrons and which provides electrons in sufficient quantity when primary electrons having low energy are employed. In the apparatus, the magnetic field generated by a filament current is decreased or eliminated by pulsing the filament current or by passing a current opposite in direction to the filament current in the vicinity of the filament current.
摘要:
An ion implantation apparatus includes an ion source having an arc chamber generating ions and a drawing electrode drawing ions from the arc chamber, a mass separator transporting only ions desired for implantation, an ion implantation chamber in which the material to be implanted by ions is placed, and a controller means for automatically controlling the distance between the arc chamber and the drawing electrode incrementally in accordance with a theoretical calculation using normalized perveance considering the kind of ions to be implanted, the accelerating voltage, and the ion current and current density distribution.
摘要:
The present invention aims to extract a large electron beam and extend the service life of an electron source by effectively radiating an electron beam with low energy from a plasma chamber toward an ion extraction port, and optimally neutralizing space charges of ions in the vicinity of the ion extraction port. An electron source is installed behind a plasma chamber to control an extraction power supply, an electron accelerating power supply, and a lens power supply. Thereby, an electron beam is extracted from the power source, and accelerated. Then, the electron beam is carried through an electric field lens at a high speed, decelerated in the vicinity of the plasma chamber, then converged to radiate toward the ion extraction port. An aperture is installed at a crossover point of the electron beam to diminish backward flow of ionic gas from the plasma chamber to the electron source.
摘要:
An ion implantation apparatus comprises an ion beam measuring device to measure and analyze the shape of a beam projected on a substrate for ion implantation and the quantity of current obtained by the ion beam, an analyzing slit member having an opening whose width is changeable, which is located in the ion beam track to extract only implantation ions, and a shaping slit member having an opening whose width is changeable, which is located behind the analyzing slit member to determine the shape of the beam to be projected on the substrate for ion implantation, wherein the widths of the openings of the analyzing slit member and the shaping slit member are changed on the basis of the shape of the beam and the quantity of current obtained as a result of the measurement by the ion beam measuring device.
摘要:
A manufacturing process OF a thin film transistor is provided, in which occurrence of a dry spot and occurrence of an etch residue of an ohmic contact layer (n+ a-Si:H film) due to the dry spot are prevented in photoengraving process for patterning a semiconductor layer and the ohmic contact layer into an island, without any further treatment by any other apparatus. After forming the a-Si:H film 4a which forms the semiconductor layer of the TFT and the n+ a-Si:H film 5a which forms the ohmic contact layer, a N2 gas plasma discharge is continuously performed using the same plasma CVD apparatus, thereby forming a very thin silicon nitride film 6 having a hydrophilic property on a surface layer of the n+ a-Si:H film 5a.
摘要:
Method for manufacturing TFTs including steps of forming a control electrode and control electrode line on a substrate, forming insulating film on the control electrode and the control electrode line, cleaning the substrate with the insulating film formed by a chemical or physical means, forming oxide film on the surface of the control electrode and control electrode line exposed by a film lacking portion generated in the insulating film after cleaning, forming a semiconductor layer via the insulating film on the control electrode, and forming a pair of electrodes constituting a semiconductor element together with the semiconductor layer.
摘要:
A dashboard of a vehicle includes an accommodation unit provided at a longitudinal end of the dashboard and positioned adjacent to a door and a side mirror located outside the door adjacent to the accommodation unit, the accommodation unit configured to receive an article, and the accommodation unit including a lid, wherein the lid is configured to stand up adjacent to the side mirror when in an open position.
摘要:
A dashboard of a vehicle includes an accommodation unit provided at a longitudinal end of the dashboard and positioned adjacent to a door and a side mirror located outside the door adjacent to the accommodation unit, the accommodation unit configured to receive an article, and the accommodation unit including a lid, wherein the lid is configured to stand up adjacent to the side mirror when in an open position.
摘要:
A manufacturing process OF a thin film transistor is provided, in which occurrence of a dry spot and occurrence of an etch residue of an ohmic contact layer (n+a-Si:H film) due to the dry spot are prevented in photoengraving process for patterning a semiconductor layer and the ohmic contact layer into an island, without any further treatment by any other apparatus. After forming the a-Si:H film 4a which forms the semiconductor layer of the TFT and the n+a-Si:H film 5a which forms the ohmic contact layer, a N2 gas plasma discharge is continuously performed using the same plasma CVD apparatus, thereby forming a very thin silicon nitride film 6 having a hydrophilic property on a surface layer of the n+a-Si:H film 5a.