Patent application number | Description | Published |
20080211062 | NITRIDE SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF - A semiconductor device and a manufacturing method thereof are provided which enable reduction and enhanced stability of contact resistance between the back surface of a nitride substrate and an electrode formed thereover. A nitride semiconductor device includes an n-type GaN substrate ( | 09-04-2008 |
20080237639 | SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD OF THE SAME - The objective of the present invention is to provide a semiconductor device of a hetero-junction field effect transistor that is capable of obtaining a high output and a high breakdown voltage and a manufacturing method of the same. | 10-02-2008 |
20100129991 | NITRIDE SEMICONDUCTOR DEVICE HAVING A SILICON-CONTAINING LAYER AND MANUFACTURING METHOD THEREOF - A semiconductor device and a manufacturing method thereof are provided which enable reduction and enhanced stability of contact resistance between the back surface of a nitride substrate and an electrode formed thereover. A nitride semiconductor device includes an n-type Ga—N substrate ( | 05-27-2010 |
20100156405 | MAGNETIC FIELD DETECTION DEVICE - A magnetic field detection device including a magnetic body (magnetic flux guide) provided for adjusting a magnetic field to be applied to a magneto-resistance element. A shape of an on-substrate magnetic body in plan view is a tapered shape on one end portion side and a substantially funnel shape on another end portion side opposite the one end portion, the another end portion being larger in width than the one end portion, and a magneto-resistance element is disposed in front of an output-side end portion. In the on-substrate magnetic body, a contour of a tapered portion is not linear like a funnel, but has a curved shape in which a first curved portion protruding outward with a gentle curvature and a second curved portion protruding inward with a curvature similar to that of the first curved portion are continuously formed. | 06-24-2010 |
20110003079 | PROCESSES FOR PREPARING COATED PAPERS - An object of the present invention is to provide a process for preparing a high-quality coated paper with high runnability while preventing damage to the elastic roll surface of the soft calender encountered during high-speed operation. The present invention provides a process for preparing a coated paper, comprising the steps of: making a base paper; applying a coating solution containing a pigment and an adhesive on the base paper to form one or more pigment coating layers; and surface-treating the pigment coating layers by a soft calender, said papermaking and coating steps being performed at an operating speed of 1300 m/min; wherein said surface-treating step comprises treating the outermost one of the pigment coating layers using a soft calender comprising a metallic roll and an elastic roll with at least two or more nips and wherein the elastic roll has a Shore D hardness of 90-96 and the metallic roll surface temperature at the first nip is less than 130° C. | 01-06-2011 |
20110316047 | SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD OF THE SAME - The objective of the present invention is to provide a semiconductor device of a hetero-junction field effect transistor that is capable of obtaining a high output and a high breakdown voltage and a manufacturing method of the same. The present invention is a semiconductor device of a hetero junction field effect transistor provided with an Al | 12-29-2011 |
20130029176 | PROCESS FOR PRODUCING ENVIRONMENTALLY-FRIENDLY STEEL SHEET FOR CONTAINER MATERIAL, ENVIRONMENTALLY-FRIENDLY STEEL SHEET FOR CONTAINER MATERIAL, AND LAMINATED AND PRE-COATED STEEL SHEET FOR CONTAINER MATERIAL USING THE SAME - Disclosed is a method for the cathodic electrocoating of a tin-coated steel sheet in a treatment solution that does not contain any Cr compound, F or nitrite nitrogen. In the method, a tin oxide layer that is not subjected to a cathodic electrocoating treatment yet and is arranged on a tin-coated steel sheet is thinned to a specified thickness or less by a cathodic electrocoating treatment in an aqueous solution containing sodium carbonate or sodium hydrogen carbonate or a aqueous sulfuric acid solution immersion treatment, and the tin oxide layer is subjected to a cathodic electrocoating treatment in an aqueous solution of an alkaline metal sulfate containing a zirconium compound having a specified composition. In this manner, a coating film is formed on the tin oxide layer at a specific adhered amount in terms of Zr content. Also disclosed are: a process for producing a chromium-free steel sheet for a container material, which has excellent adhesion to an organic resin film and excellent iron elution resistance after dent impact; and a steel sheet for a container material, which is produced by the process. | 01-31-2013 |
20130126906 | SILICON CARBIDE EPITAXIAL WAFER AND MANUFACTURING METHOD THEREFOR, SILICON CARBIDE BULK SUBSTRATE FOR EPITAXIAL GROWTH AND MANUFACTURING METHOD THEREFOR AND HEAT TREATMENT APPARATUS - A method is provided in order to manufacture a silicon carbide epitaxial wafer whose surface flatness is very good and has a very low density of carrot defects and triangular defects arising after epitaxial growth. The silicon carbide epitaxial wafer is manufactured by a first step of annealing a silicon carbide bulk substrate that is tilted less than 5 degrees from <0001> face, in a reducing gas atmosphere at a first temperature T | 05-23-2013 |
20150108564 | SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING SAME - A source region of a MOSFET includes: a source contact region connected to a source pad; a source extension region adjacent to a channel region in a well region; and a source resistance control region arranged between the source extension region and the source contact region. The source resistance control region is different in an impurity concentration from the source extension region and the source contact region. These three regions are connected in series between the source pad and the channel region in the well region. | 04-23-2015 |
20150333126 | SILICON-CARBIDE SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREFOR - It is an object of the present invention to provide a silicon carbide semiconductor device that reduces an influence of an off-angle of a silicon carbide substrate on characteristics of the semiconductor device and achieves improved operational stability and reduced resistance. In a trench-gate silicon carbide MOSFET semiconductor device formed on the silicon carbide semiconductor substrate having the off-angle, a low-channel doped region is provided on a first sidewall surface side of the trench in a well region, and a high-channel doped region having an effective acceptor concentration lower than that of the low-channel doped region is provided on a second sidewall surface side of the trench in the well region. | 11-19-2015 |
20150357415 | INSULATED GATE SILICON CARBIDE SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING SAME - An insulated gate silicon carbide semiconductor device includes: a drift layer of a first conductivity type on a silicon carbide substrate of 4H type with a {0001} plane having an off-angle of more than 0° as a main surface; a first base region; a source region; a trench; a gate insulating film; a protective diffusion layer; and a second base region. The trench sidewall surface in contact with the second base region is a surface having a trench off-angle of more than 0° in a <0001> direction with respect to a plane parallel to the <0001> direction. The insulated gate silicon carbide semiconductor device can relieve an electric field of a gate insulating film and suppress an increase in on-resistance and provide a method for manufacturing the same. | 12-10-2015 |
20160071937 | SILICON-CARBIDE SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME - A silicon carbide semiconductor device that reduces an influence of an off-angle of a silicon carbide substrate on characteristics of the semiconductor device and achieves improved operational stability and reduced resistance. In a trench-gate silicon carbide MOSFET semiconductor device, a high-concentration well region is formed in a well region, and a distance from a first sidewall surface of a trench of the silicon carbide semiconductor to the high-concentration well region is smaller than a distance from a second sidewall surface of the trench to the high-concentration well region, the second sidewall surface facing the first sidewall surface of the trench through the gate electrode. | 03-10-2016 |
Patent application number | Description | Published |
20110198766 | METHOD AND APPARATUS FOR PRODUCING OPTICAL FIBER - An optical fiber producing method and apparatus are provided in which sufficient pulling tension is applied to an optical fiber to enhance the twisting efficiency without affecting winding tension of a winding bobbin, whereby the PMD of the optical fiber can be reduced. In a method of producing an optical fiber in which, in a path where an optical fiber | 08-18-2011 |
20150273566 | PRESS FORMING METHOD FOR A SEMI-SOLID METAL MATERIAL AND PRESS FORMING SYSTEM FOR A SEMI-SOLID METAL MATERIAL - Provided is a press forming method for a semi-solid metal material, including: manufacturing a semi-solid metal material in a container having an upward opening by injecting molten metal into the container, and cooling the molten metal while stirring the molten metal; inverting the container and storing the semi-solid metal material in a temporary storage space; discharging a liquid phase part from the semi-solid metal material through the inverting; and pressing the semi-solid metal material by feeding the semi-solid metal material, from which the liquid phase part is discharged, into dies of a pressing machine. | 10-01-2015 |
20150343527 | PRESS FORMING METHOD FOR A SEMI-SOLID METAL MATERIAL AND PRESS FORMING APPARATUS FOR A SEMI-SOLID METAL MATERIAL - Provided is a press forming method for a semi-solid material, including: a semi-solid material carrying step of carrying a semi-solid material into a lower die; a first press forming step of regulating, under a Z-direction regulation state in which a change in the Z direction's dimension corresponding to a pressing direction is regulated by an upper die, a change in one of the dimensions in X and Y directions by compressing the material with a transverse punch so that the one becomes equal to a dimension of the product, and then stopping the punch at a position of the compression; and a second press forming step of moving, under a state in which the change in the one is regulated in the above step, the upper die in the pressing direction to compress the material so that the Z direction's dimension becomes equal to the product's dimension. | 12-03-2015 |
Patent application number | Description | Published |
20150336296 | MOLDING APPARATUS AND MOLDING METHOD - A die cast machine which has a mold opening and closing device having a die plate driving device which drives a movable die plate holding a moving mold, a spray device having a head driving device which advances and retracts a spray head to and from a space between a fixed mold and a moving mold, and a control device which controls the spray device and a mold opening and closing device so as to make the movable die plate move in a mold opening-closing direction during a spray process of ejecting a mold releasing agent from the spray head or during an air blowing process of ejecting air from the spray head. | 11-26-2015 |
20150352764 | INJECTION DEVICE AND MOLDING APPARATUS - An injection device has an injection cylinder device which is connected to a plunger and a driving device which is capable of driving a plunger to move forward through the injection cylinder device. A cylinder part of the injection cylinder device has a front cylinder member which accommodates an injection piston so that it can slide in a front-back direction, is opened at the rear end, and is movable in the front-back direction. Further, the cylinder part has a back cylinder member which communicates with the rear end of the front cylinder member and is provided in a fixed manner. The driving device can drive the front cylinder member in the front-back direction. | 12-10-2015 |
20160001357 | MOLDING APPARATUS - A die casting machine has a clamping device and an injection device. The clamping device has a fixed die plate which holds a fixed die, a movable die plate which holds a moving die, an electrically operated die opening and closing-use driving device which moves the movable die plate in a die opening and closing direction, and a clamping cylinder which generates a clamping force. The injection device has a sleeve, a plunger which capable of sliding in the sleeve, an electrically operated injection-use driving device which drives the plunger at least at the time of low speed injection, and an injection cylinder which drives the plunger at least at the time of high speed injection. | 01-07-2016 |