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Atsuo Isobe, Atsugi JP

Atsuo Isobe, Atsugi JP

Patent application numberDescriptionPublished
20090098720SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME - A manufacturing method of a semiconductor device of the present invention includes the steps of forming a first insulating film over a substrate, forming a semiconductor film over the first insulating film, oxidizing or nitriding the semiconductor film by conducting a plasma treatment to the semiconductor film under a condition of an electron density of 1×1004-16-2009
20090194803SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME - The present invention provides a semiconductor device capable of being mass-produced and a manufacturing method of the semiconductor device. The present invention also provides a semiconductor device using an extreme thin integrated circuit and a manufacturing method of the semiconductor device. Further, the present invention provides a low power consumption semiconductor device and a manufacturing method of the semiconductor device. According to one aspect of the present invention, a semiconductor device that has a semiconductor nonvolatile memory element transistor over an insulating surface in which a floating gate electrode of the memory transistor is formed by a plurality of conductive particles or semiconductor particles is provided.08-06-2009
20090250758MANUFACTURING METHOD OF SEMICONDUCTOR DEVICE, EVALUATION METHOD OF SEMICONDUCTOR DEVICE, AND SEMICONDUCTOR DEVICE - A semiconductor element formed over the same substrate as a TFT, includes a semiconductor film having an impurity region; an insulating film formed over the semiconductor film; an electrode divided into a plurality of parts over the insulating film by spacing a distance a in a first direction (channel width direction); an insulator with a width b formed to be in contact with a side wall of the electrodes and an insulator formed in a region between the electrodes divided into a plurality of parts; a silicide layer formed over part of the surface of the impurity region; and characteristics of the TFT are evaluated by measuring resistance of the semiconductor film of the semiconductor element.10-08-2009
20100029068SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE PRODUCTION SYSTEM - A semiconductor device production system using a laser crystallization method is provided which can avoid forming grain boundaries in a channel formation region of a TFT, thereby preventing grain boundaries from lowering the mobility of the TFT greatly, from lowering ON current, and from increasing OFF current. Rectangular or stripe pattern depression and projection portions are formed on an insulating film. A semiconductor film is formed on the insulating film. The semiconductor film is irradiated with continuous wave laser light by running the laser light along the stripe pattern depression and projection portions of the insulating film or along the major or minor axis direction of the rectangle. Although continuous wave laser light is most preferred among laser light, it is also possible to use pulse oscillation laser light in irradiating the semiconductor film.02-04-2010
20100237354SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME - It is an object of the present invention to provide a method of separating a thin film transistor, and circuit or a semiconductor device including the thin film transistor from a substrate by a method different from that disclosed in the patent document 1 and transposing the thin film transistor, and the circuit or the semiconductor device to a substrate having flexibility. According to the present invention, a large opening or a plurality of openings is formed at an insulating film, a conductive film connected to a thin film transistor is formed at the opening, and a peeling layer is removed, then, a layer having the thin film transistor is transposed to a substrate provided with a conductive film or the like. A thin film transistor according to the present invention has a semiconductor film which is crystallized by laser irradiation and prevents a peeling layer from exposing at laser irradiation not to be irradiated with laser light.09-23-2010
20100237418SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME - It is an object of the present invention to manufacture a thin film transistor having a required property without complicating steps and devices. It is another object of the present invention to provide a technique for manufacturing a semiconductor device having high reliability and better electrical characteristics with a higher yield at lower cost. In the present invention, a lightly doped impurity region is formed in a source region side or a drain region side of a semiconductor layer covered with a gate electrode layer in a thin film transistor. The semiconductor layer is doped diagonally to the surface thereof using the gate electrode layer as a mask to form the lightly doped impurity region. Therefore, the properties of the thin film transistor can be minutely controlled.09-23-2010
20100297809ORGANIC TRANSISTOR, MANUFACTURING METHOD OF SEMICONDUCTOR DEVICE AND ORGANIC TRANSISTOR - It is an object to form a high quality gate insulating film which is dense and has a strong insulation resistance property, and to propose a high reliable organic transistor in which a tunnel leakage current is little. One mode of the organic transistor of the present invention has a step of forming the gate insulating film by forming the conductive layer which becomes the gate electrode activating oxygen (or gas including oxygen) or nitrogen (or gas including nitrogen) or the like using dense plasma in which density of electron is 1011-25-2010
20110031561SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD OF THE SAME - The present invention provides a semiconductor device which suppresses a short circuit and a leakage current between a semiconductor film and a gate electrode generated by a break or thin thickness of a gate insulating film in an end portion of a channel region of the semiconductor film, and the manufacturing method of the semiconductor device. Plural thin film transistors which each have semiconductor film provided over a substrate continuously, conductive films provided over the semiconductor film through a gate insulating film, source and drain regions provided in the semiconductor film which are not overlapped with the conductive films, and channel regions provided in the semiconductor film existing under the conductive films and between the source and drain regions. And impurity regions provided in the semiconductor film which is not overlapped with the conductive film and provided adjacent to the source and drain regions. Further, the conductive films are provided over the channel regions and regions of the semiconductor film which are provided adjacent to the channel regions.02-10-2011
20110033990TRANSISTOR, AND DISPLAY DEVICE, ELECTRONIC DEVICE, AND SEMICONDUCTOR DEVICE USING THE SAME - It is an object of an invention disclosed in the present specification to provide a transistor having low contact resistance. In the transistor, a semiconductor film including an impurity element imparting P-type or N-type conductivity, an insulating film formed thereover, and an electrode or a wiring that is electrically connected to the semiconductor film through a contact hole formed at least in the insulating film are included; the semiconductor film has a first range of a concentration of the impurity element (1×1002-10-2011

Patent applications by Atsuo Isobe, Atsugi JP