Abstract:
PROBLEM TO BE SOLVED: To provide a flexible printed wiring board with a bus bar that is small in size and light in weight, and that can deal with variation in pitch between electrodes of a battery cell with ease.SOLUTION: A flexible printed wiring board 1 with a bus bar according to one embodiment comprises: a flexible printed wiring board 10 having a flexible insulation base material 11, and a plurality of wiring patterns 12 provided on one principal surface of the flexible insulation base material 11 and provided with a land part 12a for bus bar connection at one end; and a plurality of bus bars 29 and 30 fixed to the land part 12a for bus bar connection by an adhesive agent. The bus bars 29 and 30 are electrically connected to the corresponding land parts 12a for bus bar connection as a block by a plating layer 33 formed on the bus bar 3 and the land part 12a for bus bar connection.
Abstract:
A circuit substrate includes a base layer, a patterned conductive layer, a dielectric layer, an outer pad and a conductive block. The patterned conductive layer is disposed on the base layer and has an inner pad. The dielectric layer is disposed on the base layer and covers the patterned conductive layer. The outer pad is disposed on the dielectric layer. The conductive layer is passed through the dielectric layer and connected between the outer pad and the inner pad, wherein the outer pad and the conductive block are formed as an integrative unit, and an outer diameter of the outer pad is substantially equal to an outer diameter of the conductive block.
Abstract:
An electrical component which has a base body that comprises a ceramic material and at least two contact regions arranged on the base body to which terminal elements are secured, is enveloped by a protective layer containing organic constituents, and has an intermediate layer that is arranged between the base body and the protective layer and is composed of an intermediate layer material that is both hydrophobic as well as lipophobic. The intermediate layer can be advantageously composed of a fluoropolymer which is manufactured by immersing the base body into a fluid that dissolves this polymer. The moisture stability of the electrical component is critically improved by the intermediate layer. The components are particularly employed as hot-carrier thermistor temperature sensors.
Abstract:
An electronic-parts package includes a base member, a conductive member extending through the base member, the conductive member having the insulating substance on the surface removed by polishing, electronic parts disposed on one surface of the conductive member through a connection portion, an exterior electrode disposed through a metal film on the opposite surface of the surface of the base member on which the electronic parts is disposed, and a cap member that protects the electronic parts on the base member.
Abstract:
PROBLEM TO BE SOLVED: To provide a wiring board which can improve reliability by providing bump electrodes appropriate for connection with a component.SOLUTION: A wiring board 101 of an embodiment has a structure in which a plurality of bump electrodes 11 are arranged on a substrate principal surface 102 in an electrode formation region. At least one of the plurality of bump electrodes 11 is an odd-shaped bump electrode 11 having a depression 13 on a top face 12 and formed such that an outer diameter A1 at a top edge is larger than an outer diameter A2 at a bottom edge and a cross-section shape as a whole is an inverted trapezoid.
Abstract:
To carry out frequency adjustment easily, accurately and efficiently and achieve low cost formation and promotion of maintenance performance without being influenced by a size of a piezoelectric vibrating piece, there is provided a method of fabricating a piezoelectric vibrating piece which is a method of fabricating a piezoelectric vibrating pieces having a piezoelectric plate 11, a pair of exciting electrodes 12, 13, and a pair of mount electrodes electrodes 15, 16 by utilizing a wafer S, the method including an outer shape forming step of forming a frame portion S1 at the wafer and forming a plurality of piezoelectric plates to be connected to the frame portion by way of a connecting portion 11a, an electrode forming step of respectively forming pairs of exciting electrodes and pairs of mount electrodes to the plurality of piezoelectric plates and forming a plurality of pairs of extended electrodes S2, S3 to be respectively electrically connected to the pairs of mount electrodes by way of the connecting portion, a frequency adjusting step of adjusting a frequency of the piezoelectric plate while applying a drive voltage between the pair of the extended electrodes, and a cutting step of fragmenting the plurality of piezoelectric plates.
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of a bimorph type piezoelectric actuator which enables long life, a switching device, a transmission path switching device, and a testing device.SOLUTION: A manufacturing method of a bimorph type piezoelectric actuator includes: a first piezoelectric element layer formation stage where a first piezoelectric element layer is formed on a substrate; a support layer formation stage where a support layer of an insulator is formed on the first piezoelectric element layer; a second piezoelectric element layer formation stage where a second piezoelectric element layer is formed on the support layer; and a removal stage where a part of the substrate is removed to form an actuator having the first piezoelectric element layer, the support layer, the second piezoelectric element layer.