Abstract:
A flexible circuit board assembly comprising a flexible circuit board having a first portion and a second portion separated by a bendable region and a substantially rigid substrate having a first portion and a second portion separated by a bend region. The rigid substrate has an inside surface and an outside surface. The first and second portions of the circuit board are affixed to the respective first and second portions of the substrate such that when the substrate is bent the bendable region of the circuit board must also bend. The bend region has a recess extending outwardly from the inside surface of the substrate, and the recess is sized to accept the bendable region of the circuit board around a single bend axis when the substrate is bent. The recess provides for a larger bend radius of the circuit board reducing stress.
Abstract:
A flexible circuit board (20) having a substantially rigid substrate (22) and an electrical resistance heater trace (24). The substantially rigid substrate (22) has a first portion (26), a second portion (28), and a bend region (30). The bend region (30) interconnects the first portion (26) and the second portion (28). The electrical resistance heater trace (24) is formed on the bend region (30) of the substrate (22). The first portion (26) of the substrate (22) is capable of being folded relative to the second portion (28) of the substrate (22) to form at least one bend (72, 172) in the bend region (30) when an electric current is applied to the heater trace (24). There is also an electronic control unit (60, 160) that includes the flexible circuit board (20) and a method of assembling an electronic control unit (60, 160).
Abstract:
In an electronic component device, electrodes of an electric component and respective wiring lines on a board are collectively bonded together via bumps using ultrasonic vibration. The wiring lines include wiring lines that are substantially parallel to the direction of ultrasonic vibration and wiring lines that are substantially perpendicularly to the direction of ultrasonic vibration. A displacement inhibiting layer is provided inside the board in a portion below the wiring lines that are substantially perpendicular to the direction of ultrasonic vibration.
Abstract:
To provide a flexible wired circuit board having a fine-pitch conductor wiring pattern that can be produced with a high yield rates and improved productivity, a first flexible wired circuit board and a second flexible wired circuit board are disposed to be adjacent to each other on a supporting board so that a first connection terminal and a second connection terminal are connected to a same electronic component. This flexible wired circuit board can provide the result that when a defect incurs in the first flexible wired circuit board in the production process in which the first conductor wiring pattern of the first flexible wired circuit board is formed into the fine pitch, only the first flexible wired circuit board having the defect can be screened out as a defective product, in other words, the first flexible wired circuit board having no defects can be selected for combination with the second flexible wired circuit board. Thus, the flexible wired circuit board can be produced in a high yield rates of non-defective flexible wired circuit board and with improved productivity on the whole.
Abstract:
A chip carrier film comprising a metal wiring formed on a surface of a base film, a first insulating film covering the metal wiring excluding a semiconductor chip connecting pad portion and a terminal connecting pad portion, a semiconductor chip connected to the semiconductor chip connecting pad portion of the metal wiring and mounted on the base film, and a second insulating film formed on a back face of the base film and having a different coefficient of curing shrinkage from that of the first insulating film. It is possible to obtain a chip carrier film capable of preventing the suspension of the base film from being generated by the self weight of the semiconductor chip when holding the base film by the delivery device and of carrying out mounting without a hindrance.
Abstract:
The invention concerns an electronic module comprising: a printed circuit (10) including a flexible or semirigid substrate (12) provided with an array of strip conductors (14) deposited on each of its sides and with a plurality of contact pads (16) deposited on its upper side and connected to its array of conductor strips; at least an electronic chip (18), provided on its active surface with conductive bumps (20) respectively pressed on the contact pads; and a non-conductive adhesive layer (22) assembling the substrate and the chip. To avoid deformation of the module when the chip is being fixed by application of temperature and pressure, the substrate (12) is provided, on its lower side, with a plurality of reinforcing regions (24) arranged each opposite the contact pads (16).
Abstract:
A semiconductor apparatus includes a thin film belt-like insulating tape having a plurality of predetermined wire patterns thereon, and a plurality of IC chips that are provided on a surface of the insulating tape at uniform spaces in a lengthwise direction and electrically connected with the wire patterns, and further includes thick film reinforcing tapes with sprocket holes for transport use provided at uniform spaces, the reinforcing tapes being provided on both side portions of the insulating tape, in the lengthwise direction.
Abstract:
A multilayered substrate for a semiconductor device, which has a multilayered substrate body formed of a plurality sets of a conductor layer and an insulation layer, and having a face for mounting a semiconductor element thereon and another face for external connection terminals, the face for mounting a semiconductor device being provided with pads through which the substrate is connected to a semiconductor element to be mounted thereon, and the face for external connection terminals being provided with pads through which the substrate is connected to an external electrical circuit, wherein a reinforcing sheet is respectively joined to the face for mounting a semiconductor element thereon and the face for external connection terminals of the multilayered substrate body.
Abstract:
The invention provides a carrier housing assembly holding a flexible foil having conductive tracks in which the housing assembly has a plurality of parts each having a respective securing mechanism, the securing mechanisms being mutually engageable to provide a predetermined spatial relationship between the part, thereby providing the flexible foil with a predetermined spatial arrangement. The housing assembly is particularly relevant to component housing assemblies where electrical components are held in place and connected to connecter pins via the flexible foil. In a further aspect of the invention, there is provided methods for manufacturing a foil carrier housing assembly out of a flexible foil comprising conductive tracks at least one electrical component, at least one electrical contact element, at least one component housing and a carrier housing.
Abstract:
A flexible circuit board (20) having a substantially rigid substrate (22) and an electrical resistance heater trace (24). The substantially rigid substrate (22) has a first portion (26), a second portion (28), and a bend region (30). The bend region (30) interconnects the first portion (26) and the second portion (28). The electrical resistance heater trace (24) is formed on the bend region (30) of the substrate (22). The first portion (26) of the substrate (22) is capable of being folded relative to the second portion (28) of the substrate (22) to form at least one bend (72, 172) in the bend region (30) when an electric current is applied to the heater trace (24). There is also an electronic control unit (60, 160) that includes the flexible circuit board (20) and a method of assembling an electronic control unit (60, 160).