摘要:
Provided are a circuit board with enhanced moisture resist and the method of manufacturing the circuit board, and a circuit device and a method of manufacturing the circuit device. A circuit board of the present invention includes: a substrate; wirings formed on the main surface of the substrate; a cover layer covering the wirings excluding the regions to be connectors; back electrodes formed on the bottom surface of the substrate; and through-hole electrodes formed so as to penetrate the substrate, and thereby connecting the wirings and the back electrodes. On surfaces of each of the wirings in this circuit board, convex portions on the periphery of the substrate are set larger in width than convex portions in a center portion of the substrate. With this configuration, adhesion reliability between the wirings and the cover layer under a thermal cycle load can be enhanced.
摘要:
Provided are a circuit board with enhanced moisture resist and the method of manufacturing the circuit board, and a circuit device and a method of manufacturing the circuit device. A circuit board of the present invention includes: a substrate; wirings formed on the main surface of the substrate; a cover layer covering the wirings excluding the regions to be connectors; back electrodes formed on the bottom surface of the substrate; and through-hole electrodes formed so as to penetrate the substrate, and thereby connecting the wirings and the back electrodes. On surfaces of each of the wirings in this circuit board, convex portions on the periphery of the substrate are set larger in width than convex portions in a center portion of the substrate. With this configuration, adhesion reliability between the wirings and the cover layer under a thermal cycle load can be enhanced.
摘要:
An assembled battery comprises: multiple cells 30 each having external terminals including a negative electrode terminal 50 and a positive electrode terminal; a bus bar 40 which connects the external terminal of one of two adjacent cells 30 and that of the other thereof; an electrically-conductive connecting member 70 which connects the external terminal and the bus bar 40 by welding to the external terminal and the bus bar 40; a welding portion 80 welded to the bus bar 40 and the connecting member 70; and a welding portion 82 welded to the external terminal and the connecting member 70. The connecting member 70 comprises an intervening portion 70b connected to the welding portion 80, and a main body portion 70a extending from the intervening portion 70b to the welding portion 82. The intervening portion 70b has a thickness that is smaller than that of the main body portion 70a.
摘要:
An assembled battery comprises: multiple cells 30 each having external terminals including a negative electrode terminal 50 and a positive electrode terminal; a bus bar 40 which connects the external terminal of one of two adjacent cells 30 and that of the other thereof; an electrically-conductive connecting member 70 which connects the external terminal and the bus bar 40 by welding to the external terminal and the bus bar 40; a welding portion 80 welded to the bus bar 40 and the connecting member 70; and a welding portion 82 welded to the external terminal and the connecting member 70. The connecting member 70 comprises an intervening portion 70b connected to the welding portion 80, and a main body portion 70a extending from the intervening portion 70b to the welding portion 82. The intervening portion 70b has a thickness that is smaller than that of the main body portion 70a.
摘要:
The invention provides a solder structure which is least likely to develop Sn whiskers and a method for forming such a solder structure. The solder structure includes an Sn alloy capable of a solid-liquid coexistent state and an Au (or Au alloy) coating covering at least part of the surface of the Sn alloy. The Au covering is a film that covers and coats at least part of the surface of the Sn alloy. As a preferable mode, the Au coating forms a netlike structure on the surface of the Sn alloy. The thickness of the Au coating is, for instance, 1 to 5 μm.
摘要:
In case of printing a stamp logotype in a constitution in which a distance from a printing position to a cutting position is relatively short, it is designed to prevent useless space from being formed at the top region of a receipt and to appropriate relatively wide area for a stamp logotype printing region. A printer controller controls a head and a cutter so that, when a length of the stamp logotype is longer than a distance L from the printing position of the head to the cutting position of the cutter, the image of the stamp logotype is divided into a first logotype A equal to the distance L and a remaining second logotype B, so as to have the logotype A printed on the receipt before a preceding receipt is cut, and the logotype B printed on the receipt after the preceding receipt is cut.
摘要:
The invention provides a solder structure which is least likely to develop Sn whiskers and a method for forming such a solder structure. The solder structure includes an Sn alloy capable of a solid-liquid coexistent state and an Au (or Au alloy) coating covering at least part of the surface of the Sn alloy. The Au covering is a film that covers and coats at least part of the surface of the Sn alloy. As a preferable mode, the Au coating forms a netlike structure on the surface of the Sn alloy. The thickness of the Au coating is, for instance, 1 to 5 μm.