Abstract:
A device mounting board includes: an insulating resin layer; a wiring layer disposed on one main surface of the insulating resin layer; and a bump electrode connected electrically to the wiring layer and protruding on a side of the insulating resin layer from the wiring layer. A side surface of the bump electrode is curved inwardly toward the center axis of the bump electrode as viewed in a cross section including the center axis of the bump electrode, and the radius of curvature of the side surface changes continuously from a wiring layer end to a head end of the bump electrode.
Abstract:
Several sheets of sheet-shaped photosensitive material 1 are stacked on a paper tray container 2 prepared by press-forming stencil paper sheet, the photosensitive material 1 stacked on said paper tray container is inserted into a moisture-proof and light-shielding bag 3 made of a photosensitive material packaging material having moisture-proof and light-shielding properties and having an aluminum thin foil layer, and the moisture-proof and light-shielding bag 3 is sealed tight under a reduced pressure vacuum.
Abstract:
A photosensor receives laser light reflected from an optical disk with a two-segmented photodetecting surface. A relative speed detecting section binarizes a difference signal of output signals of the photosensor, and detects time points when the laser light is located at the centers of tracks and grooves of the optical disk. When a detected interval is longer than a preset value, the relative speed detecting section outputs a speed detection pulse having a preset pulse width. A track detecting section binarizes a sum signal of the output signals of the photosensor, detects time points when the laser light is located at a track edge, and outputs a track detection pulse having a preset pulse width. A loop switch turns on/off a tracking servo loop in accordance with a tracking start signal that is generated by an AND circuit and a D flip-flop.
Abstract:
A liquid recording medium for recording by ejecting liquid droplets comprises (a) recording agent which is a component to form a recorded image; and (b) carrier liquid to dissolve or disperse said recording agent, a difference .DELTA.T between a decomposition temperature of a substance having the lowest decomposition temperature among the substances constituting the recording agent and a boiling point of said liquid recording medium, exclusive of said recording agent, being at least 30.degree. C.
Abstract:
A semiconductor element mounted on an insulating resin layer formed on a wiring layer is sealed by a sealing resin. On the wiring layer, a protruding electrode protruding to the side of the semiconductor element and a protruding section are integrally formed with the wiring layer, respectively. The protruding electrode is electrically connected to an element electrode of the semiconductor element by penetrating the insulating resin layer. The protruding section is arranged to surround the semiconductor element along the four sides of the semiconductor element, and is embedded in the sealing resin up to a position above a section where the protruding electrode and the element electrode are bonded.
Abstract:
A device mounting board includes: an insulating resin layer; a wiring layer disposed on one main surface of the insulating resin layer; and a bump electrode connected electrically to the wiring layer and protruding on a side of the insulating resin layer from the wiring layer. A side surface of the bump electrode is curved inwardly toward the center axis of the bump electrode as viewed in a cross section including the center axis of the bump electrode, and the radius of curvature of the side surface changes continuously from a wiring layer end to a head end of the bump electrode.
Abstract:
A semiconductor element mounted on an insulating resin layer formed on a wiring layer is sealed by a sealing resin. On the wiring layer, a protruding electrode protruding to the side of the semiconductor element and a protruding section are integrally formed with the wiring layer, respectively. The protruding electrode is electrically connected to an element electrode of the semiconductor element by penetrating the insulating resin layer. The protruding section is arranged to surround the semiconductor element along the four sides of the semiconductor element, and is embedded in the sealing resin up to a position above a section where the protruding electrode and the element electrode are bonded.
Abstract:
The invention provides a solder structure which is least likely to develop Sn whiskers and a method for forming such a solder structure. The solder structure includes an Sn alloy capable of a solid-liquid coexistent state and an Au (or Au alloy) coating covering at least part of the surface of the Sn alloy. The Au covering is a film that covers and coats at least part of the surface of the Sn alloy. As a preferable mode, the Au coating forms a netlike structure on the surface of the Sn alloy. The thickness of the Au coating is, for instance, 1 to 5 μm.
Abstract:
There is provided a voice recognition device and a voice recognition method that enhance the function of noise adaptation processing in voice recognition processing and reduce the capacity of a memory being used. Acoustic models are subjected to clustering processing to calculate the centroid of each cluster and the differential vector between the centroid and each model, model composition between each kind of assumed noise model and the calculated centroid is carried out, and the centroid of each composition model and the differential vector are stored in a memory. In the actual recognition processing, the centroid optimal to the environment estimated by the utterance environmental estimation is extracted from the memory, model restoration is carried out on the extracted centroid by using the differential vector stored in the memory, and noise adaptation processing is executed on the basis of the restored model.
Abstract:
An optical element used in a bidirectional optical communication module used for bidirectional optical fiber communication by a wavelength multiplex system, comprising a diffraction grating of binary structure prepared by molding, wherein a taper is formed at a portion of the diffraction grating where light entering the diffraction grating is intercepted by a convex part of the binary structure of the diffraction grating.