Abstract:
There is disclosed a printed wiring board comprising: an electrically insulating flexible layer which has on one of its opposite sides a protrusion which forms a corresponding recess on the other side of the flexible layer; an electrically conducting layer formed on the protrusion; and a wire formed on the flexible layer, connected to the conducting layer, and extending in a direction. The conducting layer has a shape long in the direction of extension of the wire.
Abstract:
A method for making a fine electrically conductive grid embedded in a polymer substrate. The method includes the steps of providing a polymer substrate, forming a pattern of grooves in the substrate, filling the grooves with electrically conductive powder, and then applying heat and/or pressure to the substrate. The application of heat and/or pressure to the substrate causes the grooves to collapse inward against the conductive powder. Collapsing the grooves compacts the conductive powder within the groove, thereby establishing a continuously conductive grid line or circuit. The narrow grid lines that result allow more light to transmit through the substrate. The method allows grid lines to be made with higher aspect ratios (ratio of line depth to line width) than is possible by previous methods.
Abstract:
Device and method including a generally flat and flexible circuit for electrically inter-connecting components therein are provided. The device includes a post including a recessed section configured to receive the flexible circuit through an opening in said circuit. The structures defining the opening in the flexible circuit may be configured to provide a snap-fit between the circuit and the recessed section of the post, and thus avoid undesirable movement of the flex circuit in the presence of vibration.
Abstract:
An electronic device comprising a semiconductor chip which is fixed to the mounting face of a wiring board through an adhesive and in which external terminals are electrically connected with electrode pads of the wiring board through bump electrodes. Recesses are formed in the electrode pads, and in the recesses the electrode pads and the bump electrodes are connected. The electrode pads are formed over the surface of a soft layer, and the recesses are formed by elastic deformation of the electrode pads and the soft layer.
Abstract:
A method of making a microelectronic assembly including a compliant interface includes providing a first support structure such as a flexible dielectric sheet having a first surface and a porous resilient layer on the first surface of the first support structure, stretching the first support structure and bonding the stretched first support structure to a ring structure. A platen is provided in engagement with a second surface of the first support structure. The first surface of a second support structure, such as a semiconductor wafer, is abutted against the porous layer and, after the abutting step, a first curable liquid is disposed between the first and second support structures and within the porous layer. The first curable liquid may be at least partially cured.
Abstract:
A microelectronic connection component includes a support such as a dielectric sheet having elongated leads extending along a surface. The leads have terminal ends permanently connected to the support and tip ends releasably connected to the support. The support is juxtaposed with a further element such as a semiconductor chip or wafer, and tip ends of the leads are bonded to contacts on the wafer using a bonding tool advanced through holes in the support. After bonding, the support and the further element are moved away from one another so as to deform the leads.
Abstract:
An electronic device comprising a semiconductor chip which is fixed to the mounting face of a wiring board through an adhesive and in which external terminals are electrically connected with electrode pads of the wiring board through bump electrodes. Recesses are formed in the electrode pads, and in the recesses the electrode pads and the bump electrodes are connected. The electrode pads are formed over the surface of a soft layer, and the recesses are formed by elastic deformation of the electrode pads and the soft layer.
Abstract:
An electronic device comprising a semiconductor chip which is fixed to the mounting face of a wiring board through an adhesive and in which external terminals are electrically connected with electrode pads of the wiring board through bump electrodes. Recesses are formed in the electrode pads, and in the recesses the electrode pads and the bump electrodes are connected. The electrode pads are formed over the surface of a soft layer, and the recesses are formed by elastic deformation of the electrode pads and the soft layer.
Abstract:
Plates having a predetermined pattern are provided in each frame, side by side, at certain intervals along the longitudinal direction of the frame. A plurality of positioning holes, into which pins are inserted, are formed in each frame. A retainer portion is provided so as to extend from the inner periphery of each positioning hole and is plastically deformed when a pin is inserted thereinto. By inserting a pin into each positioning hole while a plurality of frames are stacked, the outer periphery of the pin contacts the retainer portion of each positioning hole. The retainer portion is deformed to correct misalignment among a plurality of plates.
Abstract:
A bus-bar wiring board of the present invention comprises a bus-bar pattern for electric wiring formed to a predetermined shape and a bus-bar piece formed as a separate piece from the bus-bar pattern and electrically connected and secured to the bus-bar pattern. Further, a method of producing a bus-bar wiring board of the present invention comprises a bus-bar pattern punching step for punching out a bus-bar pattern for electric wiring laid out to a predetermined shape from a conductive metal sheet, a bus-bar piece punching step for punching out a bus-bar piece laid out to a predetermined shape at the remaining space of the conductive metal sheet, and a connecting step for electrically connecting and securing the bus-bar pattern punched out in the bus-bar pattern punching step and the bus-bar piece punched out in the bus-bar piece punching step. Due to this, it is possible to reduce scrap of a conductive metal sheet from which the bus-bar pattern is punched and reduce the production cost or product cost.