Abstract:
A semiconductor device that includes a metal substrate including a top surface, a bottom surface and four side surfaces, a conductive pattern insulated from the metal substrate, and a semiconductor element mounted on and electrically connected to the conductive pattern. The top surface is insulated. Each of the side surfaces of the metal substrate includes a first inclining side surface and a second inclining side surface so as to form a convex shape protruding outwardly between the top surface and the bottom surface of the metal substrate, and the first inclining side surfaces of a pair of two opposing side surfaces are smaller than corresponding first inclining side surfaces of another pair of two opposing side surfaces.
Abstract:
A three-dimensional circuit board includes a lower substrate, a connection layer provided on an upper surface of the lower substrate, and an upper substrate provided on an upper surface of the connection layer. The connection layer exposes a portion of the upper surface of the lower substrate. The connection layer includes an insulating layer having a through-hole, and a via-conductor made of conductive material filling the through-hole. A recess is provided directly above the portion of the upper surface of the lower substrate and is surrounded by a side surface of the upper substrate and a side surface of the connection layer. A portion of the upper surface of the connection layer connected to the side surface of the connection layer inclines in a direction toward the portion of the upper surface of the lower substrate. The portion of the upper surface of the connection layer is provided from the side surface of the connection layer to the via-conductor. A portion of an upper substrate of the upper substrate connected to the side surface of the upper substrate inclines in a direction toward the portion of the upper surface of the lower substrate. The circuit board allows a component to be mounted in the recess efficiently.
Abstract:
A device is provided in which a glass panel having beveled edge is flexibly connected to a TAB package. The outer lead portions of the TAB package include an end portion of first width connected to a connection pattern on the glass panel, a terminal portion having a second width greater than the first width, and a transition portion having a width that varies between the first and second widths. When the TAB package is connected the transition portion of the respective outer lead portions are disposed over the beveled edge of the glass panel.
Abstract:
The invention provides a semiconductor device and a manufacturing method thereof where mounting strength and accuracy can be improved without making processes complex. Grooves are formed on a back surface of a semiconductor substrate along a dicing line. Via holes are formed penetrating the semiconductor substrate from its back surface to pad electrodes. Embedded electrodes are then formed in the via holes, and a wiring layer connected with the embedded electrodes is formed extending to a region near a dicing line. Conductive terminals are formed at end portions of the wiring layer. Then, dicing is performed along the dicing line to complete the semiconductor device having inclined surfaces at end portions of its back surface. When the semiconductor device is connected with the circuit board by a reflow process, conductive paste having increased fluidity covers the conductive terminals and the inclined surfaces. The conductive paste having side fillets are formed on the circuit board around an outer edge of the semiconductor device.
Abstract:
The present invention, roughly described, pertains to a small memory card that includes features which allow the memory card to be more easily handled by a user. In various embodiments, the memory card can include a chamfer and/or a raised portion that allows the memory card to be more easily grabbed by a human hand (or mechanical device) and also provides additional room to store passive devices such as capacitors and/or resistors. Because different electronic devices use different types of memory cards, an adaptor is provided that allows the memory cards disclosed herein to be used in ports or connectors on electronic devices that are meant for other types of memory cards.
Abstract:
A circuit board has circuitry including a first part and a second part connected to each other via a given first dividing plane. After the circuitry is divided by the first dividing plane, the circuitry can be restored by reconnecting the first part and the second part. The circuit board further has: first division assisting means for facilitating division of the circuit board; and first connection assisting means for facilitating reconnection of the first part and the second part. This eliminates the need to prepare different circuit boards having different specifications, making it possible to efficiently incorporate the circuit board in as many types of devices as possible.
Abstract:
A circuit board includes an electrically conductive sheet having an insulative coating surrounding the conductive sheet, with a surface of the insulative coating around an edge of the conductive sheet having an arcuate or rounded shape. At least one electrical conductor is conformally deposited on at least the rounded insulative coating around the edge of the conductive sheet and defined via photolithographic and metallization techniques. Each electrical conductor on the insulative coating thereon around the edge of the conductive sheet conforms to the arcuate or rounded shape of the insulative coating and, therefore, has an arcuate or rounded shape.
Abstract:
A stacked mounting structure includes a first substrate, a second substrate, and an intermediate substrate which has a space accommodating therein components to be mounted. A first contact (connecting) terminal and a second contact (connecting) terminal are formed on the first substrate and the second substrate, and have a wire which is formed on a side surface of the intermediate substrate. By formation of the intermediate substrate to be on an inner side than an edge surface of the substrates, a part of the two contact terminals respectively are exposed. One end of the wire is connected to an exposed portion of the first contact terminal, and the other end of the wire is connected to an exposed portion of the second contact terminal.
Abstract:
A semiconductor device comprises a semiconductor element and electrodes electrically connected to the semiconductor element, the semiconductor element and the electrodes being sealed by a sealing agent having an insulating property, the electrodes being exposed around a mounting surface that is joined via a joining agent to an external mounting circuit board, wherein the electrodes are shaped so that the joining agent is visually identifiable from side surfaces surrounding the mounting surface when the mounting surface is joined via the joining agent to the mounting circuit board.
Abstract:
A flexible circuit board is provided, comprising a flexible substrate having an upper surface and a lower surface and a plurality of electrically conductive pads overlaid on an upper surface of the flexible substrate. Front ends of the electrically conductive pads do not reach a front edge of the flexible substrate and are separated from the front edge of the flexible substrate by a distance.