Abstract:
A method for manufacturing an electronic part, including: cutting a wiring substrate, which contains a base substrate, a wiring pattern provided on a first surface of the base substrate, and a reinforcing member provided on a second surface of the base substrate, along a line intersecting with an outer circumference of the reinforcing member; wherein a wire, out of a plurality of wires composing the wiring pattern, arranged closest to an intersecting point of the outer circumference of the reinforcing member and the line has a widest width.
Abstract:
The reinforcement combining apparatus includes: a stage having a pressing surface; and a tool having a pressing surface opposite to the pressing surface of the stage, wherein the stage and the tool sandwich and press a flexible wiring substrate and a reinforcement, thereby combining the reinforcement with the flexible wiring substrate. A heat conduction rubber having elasticity which allows the heat conduction rubber to transform at an arbitrary area is provided as a part of the pressing surface of the tool, and the tool exerts pressure to the flexible wiring substrate via the heat conduction rubber. Thus, it is possible to bond the reinforcement to the flexible wiring with them uniformly appressed to each other.
Abstract:
A method for preventing broken circuits of an FPC is provided, which is to attach a film to a surface of the FPC so as to enhance the strength of the FPC.
Abstract:
A driver module structure includes a flexible circuit board (2) provided with a wiring pattern (7), a semiconductor device mounted on the flexible circuit board (2), and an electrically conductive heat-radiating member (4) joined to the semiconductor device. The wiring pattern (7) includes a ground wiring pattern (8). The flexible circuit board (2) has a cavity (9) that exposes a portion of the ground wiring pattern (8). The exposed portion of the ground wiring pattern (8) and the heat-radiating member (4) are connected to establish electrical continuity via a member (11) that is fitted into the cavity (9).
Abstract:
The invention provides a display device which can suppress a bending repulsive force of a flexible printed circuit board having a folded portion thus reducing a manufacturing cost thereof. In a display device which includes a display panel, and a flexible printed circuit board which has one end thereof connected to a terminal portion of the display panel, the flexible printed circuit board includes a base member, a line layer which is formed on the base member using a metal layer, a surface protective cover which covers the line layer, and a folded portion, the line layer includes a signal line which supplies control signals or display data to the display panel and a dummy line, the signal line is covered with the surface protective cover at the folded portion, and the folded portion includes at least one exposed portion in which the dummy line is exposed from the surface protective cover ranging from a folding start point to a folding finish point.
Abstract:
The present invention prevents the wiring pattern formed on the FPC board with the support board from being damaged or broken by the edge of the support board when the FPC board is bent at the edge portion of the support board. According to the invention, the FPC board, provides the wiring pattern on at least one surface and is stuck with the support board on the surface where the wiring pattern is formed. The support board of the invention has a clipped portion in the edge along which the FPC board is bent and the wiring pattern on the FPC board passes this clipped portion.
Abstract:
A substrate frame includes an insulative board (10a) having a pair of ear portions (13) extending along its longitudinal edges; a plurality of wiring substrate regions (11) arranged on the insulative board (10a) between the ear portions (13) at predetermined intervals; and a plurality of grooves (18) provided around said wiring substrate regions (11) from which wiring patterns are removed.
Abstract:
The invention provides a circuit board that includes a flat core plate, a buildup layer having insulation layers and conductor layers alternately stacked on each other, and surface conductor layers provided on the buildup layer. The circuit board further includes deformation-interrupting sections extending through the insulation layers between the conductor layers as electric wires. The deformation-interrupting sections adjust the thermal expansion coefficient of the whole circuit board, and enhance the rigidity of the circuit board. The invention also provides a method for forming the circuit board.
Abstract:
A circuit substrate includes a first rigid substrate having a plurality of land portions located at a predetermined interval on one surface, a second rigid substrate having a plurality of second land portions located at a predetermined interval on one surface and a flexible wiring board sandwiched by the first and second rigid substrates and which has a plurality of third land portions corresponding to the first land portions on one surface and a plurality of fourth land portions corresponding to the second land portions on the other surface. In this circuit substrate, the second and fourth land portions are displaced from each other relative to the first and third land portions and at least part of the first and third land portions and at least part of the second and fourth land portions are electrically connected to each other, respectively.
Abstract:
Polymer materials are useful as electrode array bodies for neural stimulation. They are particularly useful for retinal stimulation to create artificial vision, cochlear stimulation to create artificial hearing, and cortical stimulation, and many related purposes. The pressure applied against the retina, or other neural tissue, by an electrode array is critical. Too little pressure causes increased electrical resistance, along with electric field dispersion. Too much pressure may block blood flow. Common flexible circuit fabrication techniques generally require that a flexible circuit electrode array be made flat. Since neural tissue is almost never flat, a flat array will necessarily apply uneven pressure. Further, the edges of a flexible circuit polymer array may be sharp and cut the delicate neural tissue. By applying the right amount of heat to a completed array, a curve can be induced. With a thermoplastic polymer it may be further advantageous to repeatedly heat the flexible circuit in multiple molds, each with a decreasing radius. Further, it is advantageous to add material along the edges. It is further advantageous to provide a fold or twist in the flexible circuit array. Additional material may be added inside and outside the fold to promote a good seal with tissue.