Abstract: An electrical device includes a board, an electrical component bonded to the board by soldering, and a resin section that retains the board and the electrical component. The resin section is formed by insert molding with the board and the electrical component as inserts. A resin for configuring the resin section is a thermoplastic resin. A melting temperature of the resin for configuring the resin section is higher than a melting temperature of a solder for bonding the electrical component to the board.

Abstract: To provide a circuit board that is capable of establishing electrical connection, that is thinner, and that has a higher maintainability. A circuit board includes a substrate including a hole portion that penetrates the substrate in a plate thickness direction, and a connector region including a first conductor layer that closes one side of the hole portion, liquid metal disposed in a recess formed by the hole portion and the first conductor layer, and a sealing layer that is the liquid metal cured on a liquid surface side. The liquid metal may be in contact with a second conductor layer formed in the recess.

Abstract: To provide a circuit board that is capable of establishing electrical connection, that is thinner, and that has a higher maintainability. A circuit board 100 includes a substrate 101 including a hole portion 110 that penetrates the substrate 101 in a plate thickness direction, and a connector region including a first conductor layer 202 that closes one side of the hole portion 110, liquid metal 210 disposed in a recess 201 formed by the hole portion 110 and the first conductor layer 202, and a sealing layer 212 that is the liquid metal 210 cured on a liquid surface side. The liquid metal 210 may be in contact with a second conductor layer 204 formed in the recess 201.

Abstract: A resin molded product for reducing the external force applied to a first element from each electroconductive member due to a pressure of a resin at the time of molding, when each of the electroconductive members and the first element are insert-molded with the resin, and a method for producing the same. A second element fixing the electroconductive members to each other is connected to each of the electroconductive members so as to lie astride each of the electroconductive members. Accordingly, even though a pressure of the resin which flows into a die has been applied to each of the electroconductive members when a resin part that covers each of the electroconductive members and the first element is formed by insert molding, the distortion occurring among each of the electroconductive members is reduced by the second element.

Abstract: An element connection structure for a conductive member, in which structure an element is connectable to the conductive member without soldering or adhesive. The element connection structure is configured such that a plurality of first conductive members arranged at intervals in the width direction thereof are held by an insulating holding member, such that one end of each of a plurality of elements is brought into conductive contact with each of the first conductive members, and such that a second conductive member, which is brought into conductive contact with the other end of each of the plurality of elements, is mounted to the holding member so that each of the elements is held in conductive contact with the first and second conductive members. Each of the elements is connectable to each of the conductive members and to the conductive member without soldering or adhesive.

Abstract: When a laser beam is incident on a thin film, carbide generated by the heat of the beam is not ejected between respective metallic thin plates. In each of second conductive sections of a metallic thin plate, a slit extends from a welding position to the end of the second conductive section. The second conductive sections are respectively welded to terminals by making the laser beam incident on the respective welding positions of a substrate for the thin film. Thereby, when the beam is incident on a resin, the resin is carbonized by the thermal energy of the laser beam and the resin carbide is ejected from the welded portion, and the carbide is discharged to the outside from the lower end of the second conductive section via the slit of the second conductive section. Thereby, the carbide is not ejected between the adjacent second conductive sections. Consequently, lowering of the insulation resistance between the respective second conductive sections due to the carbide is prevented.

Abstract: A surge absorbing structure capable of effectively utilizing the gaseous discharge is intended without a complicated structural configuration such as using the conventional discharge tube. To implement this, a porous layer 1 is formed by a non-conductive material to provide many holes, and sandwiched between a pair of electrodes 2a and 2b to allow the electrodes to be conducted by the gaseous discharge generated through the holes 3 in this porous layer to execute surge absorption.