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Hideki Takagi

Hideki Takagi, Tsukuba-Shi JP

Patent application numberDescriptionPublished
20100000663ROOM-TEMPERATURE BONDING METHOD AND ROOM-TEMPERATURE BONDING APPARATUS - A method of room-temperature bonding a plurality of substrates via an intermediate member, includes: forming the intermediate member on a surface to be bonded of the substrate by physically sputtering a plurality of targets; and activating the surface to be bonded by an ion beam. In this case, it is preferable that the target composed of a plurality of types of materials is physically sputtered. Since the materials of the intermediate member are sputtered from the plurality of targets arranged in various directions from the surface to be bonded of the substrate, the intermediate member can be uniformly formed on the surface to be bonded. Further, since the intermediate member is composed of the plurality of types of materials, the room-temperature bonding of substrates difficult to bond together when an intermediate member is composed of a single type of material can be performed without heating and excessively pressing the substrates during bonding.01-07-2010
20100092786DEVICE MANUFACTURED BY ROOM-TEMPERATURE BONDING, DEVICE MANUFACTURING METHOD, AND ROOM-TEMPERATURE BONDING APPARATUS - An inter-substrate material layer is formed between a first substrate and a second substrate to generate a bonding strength. A plurality of metal elements are present in the inter-substrate material layer. An interface element existence ratio of the plurality of metal elements is 0.07 or above. A device can be obtained in which substrates difficult to bond (for example, SiO04-15-2010
20100276723DEVICE AND DEVICE MANUFACTURE METHOD - A device is provided with: a first substrate mainly containing silicon dioxide; a second substrate mainly containing silicon, compound semiconductor, silicon dioxide or fluoride; and a bonding functional intermediate layer arranged between the first substrate and the second substrate. The first substrate is bonded to the second substrate thorough room temperature bonding in which a sputtered first surface of the first substrate is contacted with a sputtered second surface of the second substrate via the bonding functional intermediate layer. Here, the material of the bonding functional intermediate layer is selected from among optically transparent materials which are oxide, fluoride, or nitride, the materials being different from the main component of the first substrate and different from the main component of the second substrate.11-04-2010

Hideki Takagi, Osaka JP

Patent application numberDescriptionPublished
20100181105PACKAGE FOR ELECTRON ELEMENT AND ELECTRONIC COMPONENT - A package for an electron element comprises: a base substrate made of ceramic; a frame body made of ceramic arranged on a top surface of the base substrate and provided therein with a cavity for accommodating the electron element; a via formed in the base substrate below the cavity, penetrating the base substrate from the top surface to a bottom surface thereof and filled with a thermally-conductive material; and a projecting part formed on an inner wall of the via and projecting toward a center of the via. The projecting part has a length along a direction perpendicular to a penetration direction of the via not less than a thickness along the penetration direction. An electronic component comprises the package and the electron element mounted thereon. The electron element is accommodated in the cavity defined inside the frame body of the package and arranged above the via.07-22-2010
20100182791PACKAGE FOR LIGHT EMITTING ELEMENT AND LIGHT EMITTING DEVICE - In a package for a light emitting element according to the present invention, a light reflecting plate is buried in a base substrate at a position below a cavity with a light reflecting surface thereof facing upward, a part of the ceramic forming the base substrate is interposed between the light reflecting surface of the light reflecting plate and a top surface of the base substrate, and at least the part is light-transmitting. A light emitting device comprises the package, and the light emitting element accommodated in the cavity of the package. In another light emitting device, a first reflector which is made of a metal material and reflects a light emitted from the light emitting element is buried in a frame body.07-22-2010
20100213811PACKAGE FOR LIGHT EMITTING ELEMENT AND METHOD FOR MANUFACTURING SAME - The package for a light emitting element according to the present invention comprises a base substrate made of ceramic including glass, and a frame body made of ceramic. The frame body is arranged on a top surface of the base substrate and provided therein with a cavity for accommodating the light emitting element. A part of the glass included in the base substrate is precipitated in an area of the top surface of the base substrate, which is a bottom surface of the cavity, and a crystallinity degree of the precipitated glass is greater than 3%. In the manufacturing method of the package according to the present invention, a ceramic body which is to be the package is fired at a temperature of 840 degrees C. or higher and lower than 950 degrees C.08-26-2010
20100246135ELECTRONIC DEVICE - An electronic device of the present invention includes: a base made of a ceramic material; an electronic device element arranged in a central area of the upper surface of the base, in a way that the electronic device element is placed on a first heat transfer layer; a first heat dissipation layer formed in a central area of the lower surface of the base; a plurality of thermal vias arranged in the base, and which connects the first heat transfer layer and the first heat dissipation layer; and a second heat transfer layer buried in the base, the second heat transfer layer crossing the plurality of thermal vias, while extending from a position above a central area of the lower surface of the base to a position above a peripheral area of the lower surface of the base.09-30-2010

Hideki Takagi, Ibaraki JP

Patent application numberDescriptionPublished
20100112341METHOD OF MOLDING GLASS PARTS, MOLDING APPARATUS, AND MOLDED PRODUCT OF GLASS MATERIAL - In order to solve problems involved in micromolding of a glass, according to the present invention, there can be provided a technology for enabling molding of a glass without applying a large load.05-06-2010