摘要:
A vaporizing device for chemical vapor deposition (CVD) source materials includes a vaporizer for vaporizing introduced CVD source materials by heating, a spray nozzle of which an end portion is fixedly attached to the vaporizer for spraying the CVD source materials into the vaporizer, a cooling mechanism for cooling the spray nozzle, and a heat conduction restrictor attached to the end portion, proximate of the end portion, or to the vaporizer. Generation of non-vaporized residues and particles is decreased, improving productivity owing to prolongation of continuous operation time of the apparatus and a decrease in film defects.
摘要:
In the chemical vapor deposition apparatus, a substrate stage for mounting a substrate is provided inside a reaction chamber of the apparatus. A source gas inlet for introducing a source gas and exhaust outlets and for exhausting the source gas are provided. Exhaust outlet valves provided for exhaust outlets are open and shut successively with time. The direction of the flow of source gas relative to the fixed substrate varies with time. The present chemical vapor deposition apparatus allows the improved evenness of film thickness, the composition ratio, and the like within the substrate surface as well as the reduction of particles of foreign substance generated inside the reaction chamber.
摘要:
A method of forming a (Ba, Sr) TiO3 high dielectric constant thin film with sufficient coverage is provided. A Ba material, an Sr material and a Ti material including bis (t-butoxy) bis (dipivaloylmethanate) titanium are dissolved in an organic solvent to obtain a solution material. The solution material is vaporized, so that material gas is obtained. A (Ba, Sr) TiO3 thin film is formed on a substrate by CVD reaction using the material gas.
摘要:
In the chemical vapor deposition apparatus, a substrate stage for mounting a substrate is provided inside a reaction chamber of the apparatus. A source gas inlet for introducing a source gas and exhaust outlets and for exhausting the source gas are provided. Exhaust outlet valves provided for exhaust outlets are open and shut successively with time. The direction of the flow of source gas relative to the fixed substrate varies with time. The present chemical vapor deposition apparatus allows the improved evenness of film thickness, the composition ratio, and the like within the substrate surface as well as the reduction of particles of foreign substance generated inside the reaction chamber.
摘要:
A method of forming a (Ba, Sr) TiO3 high dielectric constant thin film with sufficient coverage is provided. A Ba material, an Sr material and a Ti material including bis (t-butoxy) bis (dipivaloylmethanate) titanium are dissolved in an organic solvent to obtain a solution material. The solution material is vaporized, so that material gas is obtained. A (Ba, Sr) TiO3 thin film is formed on a substrate by CVD reaction using the material gas.
摘要:
There are provided a vaporizer for use with a CVD apparatus and a CVD apparatus, capable of long-term, reliable and efficient production of CVD film with good properties, and a semiconductor device manufactured employing the same. The vaporizer for use with a CVD apparatus is comprised of a material introducing tube, a vaporization chamber and a cooling member. The material introducing tube transports a mixture containing a solution of a material for the CVD film and a gas carrying the solution. The vaporization chamber is connected to the material introducing tube to vaporize the material introduced through the material introducing tube. The cooling member cools that portion of the material introducing tube adjacent to the vaporization chamber.
摘要:
A CVD source material which can be stably tramsported to a reactor in order to form a platinum metal, Cu, or an oxide of them as an electrode. An organometallic compound including a platinum metal (Ru, Pt, Ir, Pd, Os, Rh, Re) or Cu, is dissolved into tetrahydrofuran or a solvent containing tetrahydrofuran to obtain the CVD source material. In this material, the amount of moisture is preferably not more than 200 ppm. A film is formed by CVD employing this source material, the material is supplied stably, and the properties of the electrode film are improved. The capacitance property of the film is improved. Wiring of an electrical device may be formed by employing source material.
摘要:
To include a first step of forming a protection film on a surface of a translucent substrate, a second step of exposing the surface of the translucent substrate by forming a plurality of openings arranged regularly at a certain pitch in the protection film, a third step of forming parabolic irregularities including substantially hemispherical depressions arranged substantially uniformly on the surface of the translucent substrate by performing isotropic etching by using the protection film having the openings formed as a mask and under conditions in which the protection film has resistance to the surface of the translucent substrate on which the protection film is formed, and a fourth step of removing the protection film, wherein at the fourth step, the isotropic etching is continued after formation of the parabolic irregularities to separate the protection film from the translucent substrate and round apexes of protruded portions in the parabolic irregularities.
摘要:
An image stabilizing apparatus includes a fixed member, a shift member that holds an image stabilizing lens and are movable in a plane orthogonal to an optical axis, a plurality of shift drivers that are disposed at positions different from each other in the plane orthogonal to the optical axis, a gel that is held by one of the shift member and the fixed member, and a protrusion that is provided on the other one of the shift member and the fixed member. Each of the plurality of shift drivers includes a magnet held by one of the shift member and the fixed member, a coil that is held by the other one of the shift member and the fixed member, and a yoke that is held by the other one of the shift member and the fixed member, and a portion of the protrusion is immersed in the gel.
摘要:
A photoelectric conversion device includes an n-type semiconductor layer and a p-type semiconductor layer, a collecting electrode formed on the n-type semiconductor layer, and a collecting electrode formed on the p-type semiconductor layer, on a back surface opposite to a light receiving surface of an n-type crystalline silicon substrate, and an n-type semiconductor region on a surface on a light receiving surface side of the n-type crystalline silicon substrate, wherein in the n-type semiconductor region, an n-type semiconductor region that is opposed to the n-type semiconductor layer with the n-type crystalline silicon substrate therebetween and an n-type semiconductor region that is opposed to the p-type semiconductor layer with the n-type crystalline silicon substrate therebetween have different average impurity concentrations.