Abstract:
A wiring board has a laminated structure having a recessed portion on a first-surface side of the laminated structure and a solder resist layer on a second-surface side of the laminated structure on the opposite side of the first-surface side. The laminated structure has a first-surface side pad formed in the bottom of the recessed portion and a second-surface side pad formed on the second-surface side of the laminated structure, the solder resist layer has a first opening portion and a second opening portion formed in the solder resist layer, the first opening portion is exposing the second-surface side pad, the second opening portion is formed on a back face of the recessed portion, and the back face of the recessed portion does not include the second-surface side pad.
Abstract:
An electronic circuit apparatus includes a circuit substrate, a heat generating component positioned on the circuit substrate, a metal plate forming a portion of an inner layer of the circuit substrate and protruding from a side surface of the circuit substrate such that the metal plate has an exposed portion exposed to outside the circuit substrate, and an external component connected to the exposed portion of the metal plate and including one of an external heat dissipation component and an external cooling component.
Abstract:
A printed circuit board includes an in-line PCB region comprising an input/output control region including a first conductive line, and a main PCB region coupled to the in-line PCB region and comprising a semiconductor chip and an input/output signal generation region including a second conductive line. The input/output signal generation region is configured to detect whether or not the first and second conductive lines are electrically connected and to provide an input/output control signal to the semiconductor chip in response to determining whether or not the first and second conductive lines are electrically connected.
Abstract:
A method for manufacturing a rigid-flexible printed circuit board includes following steps. First, a flexible PCB is provided. The flexible PCB includes a base and an electrical trace layer on the base. The flexible PCB includes a first region and a second region connected to the first region. The first and second regions define a borderline. Second, a protective film and a peelable layer are sequentially formed on the electrical trace layer in the first region and part of the second region. Third, a copper coil, an adhesive tape and the flexible circuit board are laminated together. Fourth, the copper coil in the second region is etched to form an outer electrical trace layer. Last, the copper coil in the first region is removed and the peelable layer and the adhesive tape are peeled off, thereby obtaining an R-F PCB.
Abstract:
An electronic device includes a substrate having a connector formed on a main face, and a module having a terminal detachably connected to the connector of the substrate. The module includes an extended part which projects below the terminal in an installation direction. The substrate includes a bypass part which bypasses the extended part when the module is connected to the substrate. The bypass part is a cutout or a recess formed in the substrate. The extended part accommodates a plurality of components aligned in the installation direction. The extended part is extended from the lower end of the module by a difference between a first size, corresponding to multiple times the size of each component, and a second size ranging from the upper end of the module to the end of the terminal.
Abstract:
An electronic device includes a first circuit board; a heat sink fixed to the first circuit board to form a cavity between the heat sink and the first circuit board; and a plurality of electronic components fixed to a surface of the heat sink facing the first circuit board inside the cavity, the plurality of electric components having heights different from each other, wherein each of the plurality of electronic components is electrically coupled to the first circuit board by a second circuit board and being different from the first circuit board.
Abstract:
A combined circuit board including a flexible circuit board (FCB), a rigid circuit board (RCB), and first and second conductive vias (CVs) is provided. The FCB includes a flexible dielectric layer (DL) and a circuit layer (CL) disposed thereon. The RCB includes a rigid DL and a CL including a main circuit (MC) and an out connection interface circuit (OCIC). The rigid DL is disposed on the FCB and includes first and second rigid dielectric portions (RDPs) apart from each other by a distance such that part of the FCB is exposed outside. The MC and the OCIC are disposed on the first and the second RDPs, respectively. The first CV disposed in the second RDP electrically connects a contact of the OCIC and the CL of the FCB. The second CV disposed in the first RDP electrically connects the MC and the CL of the FCB.
Abstract:
The invention is directed to a method of bonding a hermetically sealed electronics package to an electrode or a flexible circuit and the resulting electronics package, that is suitable for implantation in living tissue, such as for a retinal or cortical electrode array to enable restoration of sight to certain non-sighted individuals. The hermetically sealed electronics package is directly bonded to the flex circuit or electrode by electroplating a biocompatible material, such as platinum or gold, effectively forming a plated rivet-shaped connection, which bonds the flex circuit to the electronics package. The resulting electronic device is biocompatible and is suitable for long-term implantation in living tissue.
Abstract:
A compact rigid-flexible board includes two flexible PCBs, two rigid substrates, a third trace layer and a fourth trace layer. The first flexible PCB includes a first depressing portion, a first exposed portion and a third depressing portion, and a separated second exposed portion. The second flexible PCB includes fourth and fifth depressing portions, and a second exposed portion. The first rigid substrate includes sixth, seventh, and eighth depressing portions. The second rigid substrate includes ninth and tenth depressing portions. The third trace layer, the sixth, first, fourth, and ninth depressing portions and the fourth trace layer are stacked in sequence. The third trace layer, the seven, second, fifth, and tenth depressing portions, and the fourth trace layer are stacked in sequence. The third trace layer and the eighth and third depressing portions are stacked in sequence.
Abstract:
A rigid-flexible printed circuit board includes a first circuit substrate, a third circuit substrate, and an adhesive sheet sandwiched between the first circuit substrate and the third circuit substrate. The first circuit substrate is a rigid circuit substrate. The third circuit substrate is a flexible circuit substrate, and includes an exposed area and two lamination areas. The exposed area is sandwiched between the two lamination areas. The first circuit substrate and the adhesive sheet are only laminated onto the two lamination areas. A dielectric layer of the first circuit substrate is a rigid epoxy glass cloth laminate, and a dielectric layer of the third circuit substrate is a flexible epoxy glass cloth laminate.