Patent application number | Description | Published |
20100181984 | Switching Control Circuit and Self-Excited DC-DC Converter - The switching control circuit comprises a switching control signal generation circuit that detects a change in ripples of the output voltage and-generates a switching control signal for the on/off control of the switching element to make the output voltage follow the target level; an overcurrent state detection circuit that generates a state signal indicating whether the output current is in an overcurrent state where the output current is equal to or greater than a predetermined current; and a delay circuit that delays the state signal for a same predetermined delay time at both of the times when the output current exceeds the predetermined current and when the output current falls below the predetermined current. | 07-22-2010 |
20110038088 | SUBSTRATE INCLUDING AN ESD PROTECTION FUNCTION - A substrate including an ESD protection function includes an insulating substrate, at least one of circuit elements or a wiring pattern and an ESD protection portion. In the ESD protection portion, facing portions of at least one pair of discharge electrodes are disposed in a cavity provided in the insulating substrate so that the ends face each other. The discharge electrodes are electrically connected to the circuit elements and or the wiring pattern. | 02-17-2011 |
20130163130 | ESD PROTECTION STRUCTURE AND METHOD FOR MANUFACTURING THE SAME - An ESD protection device includes an alumina multilayer substrate, a hollow portion, a discharge electrode pair, discharge-assisting electrodes, and a vitreous substance. The hollow portion is disposed inside of the alumina multilayer substrate. The electrodes of the discharge electrode pair are disposed opposite to each other at an interface between the hollow portion and the alumina multilayer substrate. The discharge-assisting electrodes are disposed dispersedly between the opposite electrodes of the discharge electrode pair. The vitreous substance covers the discharge-assisting electrodes in the inside of the hollow portion. A trial discharge is executed so as to induce creepage discharge between the electrodes of the discharge electrode pair in advance. | 06-27-2013 |
20140055120 | INDUCTOR ARRAY CHIP AND DC-DC CONVERTER - An inductor array chip includes a magnetic laminated body and a plurality of inductors. The magnetic laminated body includes a plurality of stacked magnetic layers. The plurality of inductors are arranged inside the magnetic laminated body. The inductance of a first inductor differs from the inductance of a second inductor. The inductors include a plurality of coil-shaped conductors and via-hole conductors. The plurality of coil-shaped conductors are arranged between the magnetic layers. The via-hole conductors electrically connect the plurality of coil-shaped conductors. The inductors include a plurality of inductors in which the section sizes of the coil-shaped conductors differ from one another. | 02-27-2014 |
20140203985 | COIL ANTENNA AND COMMUNICATION TERMINAL DEVICE - To ensure a sufficient communication distance and to concurrently suppress a conductor loss, a coil antenna includes a magnetic core including a first peripheral surface including at least a first principal surface, a first coil conductor located on the first principal surface and wound around a predetermined winding axis, a first base material layer stacked on the first principal surface, including at least a first surface parallel or substantially parallel to the first principal surface, and made of a material having a lower magnetic permeability than the magnetic core, and a second coil conductor located on at least the first surface. Opposite ends of the second coil conductor are coupled to the first coil conductor on the first principal surface, and a direction in which a current flows through the first coil conductor on the first principal surface is substantially the same as a direction in which a current flows through the second coil conductor on the first surface. | 07-24-2014 |
20140203986 | ANTENNA DEVICE ANTENNA MODULE - An antenna device includes a multilayer body as a base body, an antenna coil, and a capacitor chip. The multilayer body includes a magnetic layer including a first main surface and a second main surface, a first non-magnetic layer provided on the first main surface of the magnetic layer, and a second non-magnetic layer provided on the second main surface of the magnetic layer. The antenna coil includes a first coil pattern provided with the first non-magnetic layer and a second coil pattern provided with the second non-magnetic layer. The capacitor chip is connected to the antenna coil and provided on the second non-magnetic layer. | 07-24-2014 |
20140306787 | LAMINATED COMMON-MODE CHOKE COIL - In a common-mode choke coil, first annular conductors are helically defined from the lower layer to the upper layer, and first annular conductors are helically defined from the upper layer to the lower layer. Further, second annular conductors are helically defined from the lower layer to the upper layer, and second annular conductors are helically defined from the upper layer to the lower layer. The first annular conductors and the second annular conductors are disposed alternately in a lamination direction. The first annular conductors and the second annular conductors are disposed such that substantial portions of the annular conductors adjacent to each other in the layer direction do not overlap in a planar view. This structure achieves a compact common-mode choke coil with which the loss of normal-mode signals is small, and which is highly capable of removing common-mode noise. | 10-16-2014 |
20150079273 | ESD PROTECTION STRUCTURE AND METHOD FOR MANUFACTURING THE SAME - An ESD protection device includes an alumina multilayer substrate, a hollow portion, a discharge electrode pair, discharge-assisting electrodes, and a vitreous substance. The hollow portion is disposed inside of the alumina multilayer substrate. The electrodes of the discharge electrode pair are disposed opposite to each other at an interface between the hollow portion and the alumina multilayer substrate. The discharge-assisting electrodes are disposed dispersedly between the opposite electrodes of the discharge electrode pair. The vitreous substance covers the discharge-assisting electrodes in the inside of the hollow portion. A trial discharge is executed so as to induce creepage discharge between the electrodes of the discharge electrode pair in advance. | 03-19-2015 |
Patent application number | Description | Published |
20080258258 | SEMICONDUCTOR DEVICE - The invention provides a semiconductor device which has a capacitor element therein to achieve size reduction of the device, the capacitor element having larger capacitance than conventional. A semiconductor integrated circuit and pad electrodes are formed on the front surface of a semiconductor substrate. A second insulation film is formed on the side and back surfaces of the semiconductor substrate, and a capacitor electrode is formed between the back surface of the semiconductor substrate and the second insulation film, contacting the back surface of the semiconductor substrate. The second insulation film is covered by wiring layers electrically connected to the pad electrodes, and the wiring layers and the capacitor electrode overlap with the second insulation film being interposed therebetween. Thus, the capacitor electrode, the second insulation film and the wiring layers form capacitors. | 10-23-2008 |
20080277793 | Semiconductor Device and Manufacturing Method Thereof - A semiconductor device with improved moisture resistance and its manufacturing method as well as a manufacturing method of a semiconductor device which simplifies a manufacturing process and improves productivity are offered. This invention offers a CSP type semiconductor device and its manufacturing method that can prevent moisture and the like from infiltrating into it to attain high reliability by covering a side surface of a semiconductor chip with a thick protection layer. This invention also offers a highly productive manufacturing method of semiconductor devices by which a supporter bonded to semiconductor dice is etched from a back surface-side of the supporter so that the semiconductor devices can be separated without dicing. | 11-13-2008 |
20090206349 | SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - An object of the invention is to provide a smaller semiconductor device of which the manufacturing process is simplified and the manufacturing cost is reduced and a method of manufacturing the same. Furthermore, an object of the invention is to provide a semiconductor device having a cavity. A first supporting body | 08-20-2009 |
20100038742 | SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF - This invention is directed to offer a technology that makes it possible to form desired bump electrodes easily when the bump electrodes are to be formed at locations lowered by a step. There is formed an isolation layer | 02-18-2010 |
20100164086 | SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF - This invention is directed to offer a package type semiconductor device that can realize a smaller size device and its manufacturing method as well as a small stacked layer type semiconductor device and its manufacturing method. A device component | 07-01-2010 |
Patent application number | Description | Published |
20080265424 | SEMICONDUCTOR DEVICE - A manufacturing method of a semiconductor device of this invention includes forming metal pads on a Si substrate through a first oxide film, bonding the Si substrate and a holding substrate which bolsters the Si substrate through a bonding film, forming an opening by etching the Si substrate followed by forming a second oxide film on a back surface of the Si substrate and in the opening, forming a wiring connected to the metal pads after etching the second oxide film, forming a conductive terminal on the wiring, dicing from the back surface of the Si substrate to the bonding film and separating the Si substrate and the holding substrate. | 10-30-2008 |
20090302329 | SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - The invention is directed to providing a smaller semiconductor device formed as an optical sensor including a light receiving portion and a light emitting portion. A light receiving portion and a light emitting portion are disposed on a front surface of a semiconductor substrate for forming a semiconductor die, and a supporting body is attached to these so as to face these with an adhesive being interposed therebetween. A first opening exposing the light receiving portion from the front side of the supporting body is provided, and in a separated position therefrom, a second opening exposing the light emitting portion from the front side of the supporting body is provided. A first electrode and a second electrode are further disposed on the front surface of the semiconductor substrate, and bump electrodes electrically connected to these are disposed on the back surface of the semiconductor substrate. | 12-10-2009 |
20100038668 | SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - The invention is directed to providing a smaller semiconductor device with a lower manufacturing cost and higher reliability and a method of manufacturing the same. A light emitting element (a LED die | 02-18-2010 |
20100044821 | SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF - This invention offers a semiconductor device to measure a luminance for the visible wavelength range of light components and its manufacturing method which reduce its manufacturing cost. A first light-receiving element and a second light-receiving element are formed in a semiconductor substrate. Then, there is formed an arithmetic circuit that calculates a difference between a value of an electric current corresponding to an amount of light detected by the first light-receiving element (that is, a value of an electric current representing a relative sensitivity against the light) and a value of an electric current corresponding to an amount of light detected by the second light-receiving element (that is, a value of an electric current representing a relative sensitivity against the light). Next, a first green pass filter permeable only to light in a green wavelength range and an infrared wavelength range is formed to cover the first light-receiving element, while a second green pass filter similar to the first green filter is formed to cover the second light-receiving element. In addition, a red pass filter permeable only to light in a red wavelength range and the infrared wavelength range is formed to cover the second light-receiving element. | 02-25-2010 |
20100096659 | SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - The invention is directed to providing a smaller semiconductor device having a light emitting element with a low manufacturing cost and a method of manufacturing the same. An adhesive layer | 04-22-2010 |
Patent application number | Description | Published |
20090162750 | METHOD OF PRODUCING LITHIUM ION-STORING/RELEASING MATERIAL, LITHIUM ION-STORING/RELEASING MATERIAL, AND ELECTRODE STRUCTURE AND ENERGY STORAGE DEVICE USING THE MATERIAL - A method of producing a material capable of electrochemically storing and releasing a large amount of lithium ions is provided. The material is used as an electrode material for a negative electrode, and includes silicon or tin primary particles composed of crystal particles each having a specific diameter and an amorphous surface layer formed of at least a metal oxide, having a specific thickness. Gibbs free energy when the metal oxide is produced by oxidation of a metal is smaller than Gibbs free energy when silicon or tin is oxidized, and the metal oxide has higher thermodynamic stability than silicon oxide or tin oxide. The method of producing the electrode material includes reacting silicon or tin with a metal oxide, reacting a silicon oxide or a tin oxide with a metal, or reacting a silicon compound or a tin compound with a metal compound to react with each other. | 06-25-2009 |
20110194674 | X-Ray Imaging Apparatus and X-Ray Imaging Method - An X-ray imaging apparatus and an X-ray imaging method can alleviate the influence of scattered X-rays relative to the obtained image. A differential phase contrast image or a phase contrast image of a detection object is computed by using a splitting element and an exposure control unit that synchronizes the X-ray scanning speed and the image acquisition speed of a detecting unit. | 08-11-2011 |
20110299661 | X-RAY WAVEGUIDE - An X-ray waveguide according to the present invention includes: a core for guiding an X-ray in such a wavelength band that a real part of the refractive index of a material is 1 or less; and a cladding for confining the X-ray in the core, wherein: the cladding has a periodic structure in which multiple materials having different real parts of the refractive index are periodically arranged in two-dimensional directions perpendicular to the guiding direction of X-ray; and the periodic structure has a period of 100 nm or less. | 12-08-2011 |
20110299662 | X-RAY WAVEGUIDE - An X-ray waveguide which: shows a small propagation loss of an X-ray; does not deteriorate owing to oxidation; and can be easily produced is realized with an X-ray waveguide, including: a core for guiding an X-ray in such a wavelength band that the real part of refractive index of materials is 1 or less; and a cladding for confining the X-ray in the core, in which: the cladding has a one-dimensional periodic structure consisting of at least two materials having different real parts of refractive index; one of the materials is inorganic one, and another one of materials is any of an organic material, a gas, or vacuum; and the core and the cladding are formed so that the critical angle for total reflection at the interface between the core and the cladding is smaller than a Bragg angle depending on the periodicity of the one-dimensional periodic structure. | 12-08-2011 |
20120269327 | X-RAY WAVEGUIDE - An X-ray waveguide includes a cladding and a core. The core has a periodic structure formed in at least one period direction. The periodic structure includes periodically arranged members made of material having different refractive index real parts. The core is surrounded by the cladding in the plane perpendicular to a wave-guiding direction. The Bragg angle obtained from the periodicity of the periodic structure is smaller than the total reflection critical angle at which X-rays are incident on the interface between the cladding and the core. The at least one period direction is the direction of at least one fundamental vector expressing the periodicity of the periodic structure in a plane of the core perpendicular to the wave-guiding direction. | 10-25-2012 |
20120294421 | X-RAY IMAGING APPARATUS AND X-RAY IMAGING METHOD - An X-ray imaging apparatus acquiring a differential phase contrast image of a test object without using a light-shielding mask for X-ray. The apparatus includes an X-ray source, a splitting element configured to spatially divide an X-ray emitted from an X-ray source and a scintillator configured to emit light when a divided X-ray beam divided at the splitting element is incident on the scintillator. The apparatus also includes a light-transmission limiting unit configured to limit transmitting amount of the light emitted from the scintillator and a plurality of light detectors each configured to detect the amount of light that has transmitted through the light-transmission limiting unit. The light-transmission limiting unit is configured such that a light intensity detected at each of the light detectors changes in response to a change in an incident position of the X-ray beam. | 11-22-2012 |
20120321949 | METHOD OF PRODUCING LITHIUM ION-STORING/RELEASING MATERIAL, LITHIUM ION-STORING/RELEASING MATERIAL, AND ELECTRODE STRUCTURE AND ENERGY STORAGE DEVICE USING THE MATERIAL - A method of producing a material capable of electrochemically storing and releasing a large amount of lithium ions is provided. The material is used as an electrode material for a negative electrode, and includes silicon or tin primary particles composed of crystal particles each having a specific diameter and an amorphous surface layer formed of at least a metal oxide, having a specific thickness. Gibbs free energy when the metal oxide is produced by oxidation of a metal is smaller than Gibbs free energy when silicon or tin is oxidized, and the metal oxide has higher thermodynamic stability than silicon oxide or tin oxide. The method of producing the electrode material includes reacting silicon or tin with a metal oxide, reacting a silicon oxide or a tin oxide with a metal, or reacting a silicon compound or a tin compound with a metal compound to react with each other. | 12-20-2012 |
20130039477 | X-RAY WAVEGUIDE - To provide an X-ray waveguide which: shows a small propagation loss of an X-ray; has a waveguide mode with its phase controlled; does not deteriorate owing to oxidation; and can be easily produced, an X-ray waveguide, including: a core for guiding an X-ray in such a wavelength band that a real part of the refractive index of a material is 1 or less; and a cladding for confining the X-ray in the core, in which: the core has a one-dimensional periodic structure containing multiple materials having different real parts of the refractive index; the multiple materials include one of an organic material, a gas, and a vacuum, and an inorganic material; and the core and the cladding are formed so that the critical angle for total reflection at an interface between the core and the cladding is larger than a Bragg angle resulting from a periodicity of the one-dimensional periodic structure, is realized. | 02-14-2013 |
20130058461 | X-RAY WAVEGUIDE - An X-ray waveguide showing a small propagation loss and having a waveguide mode with its phase controlled is provided. The X-ray waveguide including: a core for guiding an X-ray in a wavelength band that a real part of the refractive index of a material is 1 or less; and a cladding for confining the X-ray in the core, in which: the X-ray is confined in the core by total reflection at a interface between the core and the cladding; in the core multiple materials having different real parts of the refractive index are periodically arranged; and a waveguide mode of the X-ray waveguide is such that the number of antinodes or nodes of an electric field intensity distribution or a magnetic field intensity distribution of the X-ray coincides with the number of periods of the periodic structure in a direction perpendicular to a waveguiding direction of the X-ray in the core. | 03-07-2013 |
20130064352 | X-RAY WAVEGUIDE, PROCESS OF PRODUCING X-RAY WAVEGUIDE, AND X-RAY GUIDING SYSTEM - An X-ray waveguide, for guiding X-rays having a wavelength of 1 pm or more and 100 nm or less, includes: a core and a cladding. The core has a periodic structure composed of a plurality of materials each having a different real part of refractive index in the direction perpendicular to the waveguiding direction. A planarizing layer is disposed between the core and the cladding. The critical angle for total reflection of the X-rays at the interface between the planarizing layer and the cladding is larger than the Bragg angle of the periodic structure of the core. | 03-14-2013 |
20130070905 | X-RAY WAVEGUIDE AND METHOD OF PRODUCING THE WAVEGUIDE - An X-ray waveguide according to the present invention includes: a core for guiding an X-ray; and a cladding for confining the X-ray in the core, wherein: the core has a low electron density portion and a high electron density portion having a higher electron density than an electron density of the low electron density portion; the low electron density portion is provided in the high electron density portion; and the low electron density portion is formed of one of a pore and an organic substance. | 03-21-2013 |
20130114795 | X-RAY WAVEGUIDE, METHOD FOR MANUFACTURING X-RAY WAVEGUIDE, AND METHOD FOR CONTROLLING X-RAY WAVEGUIDE - An X-ray waveguide includes a core having a periodic structure in which basic structures made of a plurality of materials having different real parts of refractive indexes are periodically disposed, a cladding formed on an outer side of the core to confine X-rays in the core through total reflection and including at least a portion with a gap between the cladding and the core, and a driving unit which drives at least a portion of the cladding or the core to change a distance of the gap. A critical angle for total reflection of the X-rays in the interface between the cladding and the gap is larger than a Bragg angle corresponding to the periodic structure of the core, and a critical angle for total reflection in an interface between a plurality of ingredients which form the periodic structure of the core is smaller than the Bragg angle. | 05-09-2013 |
20130142312 | X-RAY WAVEGUIDE AND X-RAY WAVEGUIDE SYSTEM - An X-ray waveguide includes a core configured to guide X-ray therethrough and a cladding. In a section perpendicular to an X-ray guiding direction, the core has threefold or more rotational symmetry and has a periodic structure made of plural substances each having a different value of a real part of refractive-index, and a critical angle for total reflection of an X-ray at an interface between the core and the cladding is larger than a Bragg angle of the X-ray for the periodic structure of the core. A waveguide mode having a two-dimensionally spatial coherence over a wide cross-section of the core and exhibiting a small propagation loss is realized. | 06-06-2013 |
20130156162 | X-RAY WAVEGUIDE AND X-RAY WAVEGUIDE SYSTEM - An X-ray waveguide includes a cladding and a core to guide X-rays. The core includes a periodic structure of plural substances having different values of a refractive-index real part in a direction perpendicular to an X-ray guiding direction. A Bragg angle determined depending on a wavelength of an X-ray and periodicity of the periodic structure is smaller than a critical angle for total reflection of the X-ray at an interface between the core and the cladding. The Bragg angle is larger than a critical angle for total reflection of the X-ray at an interface between the plural substances constituting the periodic structure. The core has, in the X-ray guiding direction, two or more regions differing in periodic number of the periodic structure constituting the core with a core width in a direction of period being different between the two or more regions corresponding to change of the periodic number. | 06-20-2013 |
20130163727 | X-RAY WAVEGUIDE - A X-ray waveguide includes a core for guiding X-rays having a wavelength band in which the real part of refractive index of material is smaller than 1 and a cladding for confining the X-rays in the core. The core has a one-dimensional periodic structure in which a plurality of layers respectively formed of inorganic materials having different real parts of refractive index are periodically laminated. The core and the cladding are configured so that a critical angle for total reflection for the X-rays at an interface between the core and the cladding is larger than a Bragg angle due to a periodicity of the one-dimensional periodic structure. A critical angle for total reflection for the X-rays at an interface between layers in the one-dimensional periodic structure is smaller than the Bragg angle due to the periodicity of the one-dimensional periodic structure. | 06-27-2013 |
20130182827 | X-RAY WAVEGUIDE AND X-RAY WAVEGUIDE SYSTEM - An X-ray waveguide includes a core having a curved portion and a cladding. The core has a periodic structure made of different substances periodically arrayed perpendicular to a guiding direction. A critical angle for total reflection of an X-ray at a core-cladding interface is larger than a Bragg angle of the periodic structure. A critical angle for the total reflection of the X-ray at a substance interface in the periodic structure is smaller than the Bragg angle. When s is a core width in a direction perpendicular to the guiding direction and parallel to a curvature radius of the curved portion, n | 07-18-2013 |
20140376699 | X RAY WAVEGUIDE SYSTEM - An X-ray waveguide system capable of forming X-rays having spatial coherence of a large space region has an X-ray collecting optical element which collects incident X-rays; and an X-ray waveguide containing a core and claddings and wave-guiding a collected X-ray collected by the X-ray collecting optical element, in which the core of the X-ray waveguide is a periodic structure body in which a plurality of basic structures containing substances different in the refractive-index real part are periodically disposed, the total reflection critical angle of the collected X-ray at the interface of the core and the cladding is equal to or larger than the Bragg angle corresponding to the period of the core, and the collection angle of the collected X-ray entering the X-ray waveguide is as large as or larger than the double of the Bragg angle. | 12-25-2014 |