Abstract:
The present invention relates to an electric and/or electronic circuit including a printed circuit board (20), at least one separate circuit board (10) and at least one power connector (12) for said printed circuit board (20). The at least one power connector (12) is connected or connectable to a corresponding counterpart. A number of electric and/or electronic components (22) is sold at the separate circuit board (10). The at least one separate circuit board (10) is connected to the printed circuit board (20) by a number of solder joints (16). The solder joints (16) are connected to the separate circuit board (10) by a through-hole-technology. The solder joints (16) are connected to the printed circuit board (20) by SMD (surface mount device) technology. At least one power connector (12) is fastened at the separate circuit board (10) by the through-hole-technology.
Abstract:
A curable adhesive composition used for bonding a wiring member constituting a multilayered wiring board, in which the curable adhesive composition satisfies all the following conditions (A) and (B) when a thermal expansion coefficient and a glass transition temperature of a cured product are designated as CTE0 (ppm/° C.) and Tg0 (° C.), respectively:
Abstract:
In an insulating circuit substrate, aluminum sheets formed of aluminum or an aluminum alloy are laminated and bonded to a surface of a ceramic substrate and, in the aluminum sheets, Cu is solid-solubilized at a bonding interface with the ceramic substrate and a ratio B/A between a Cu concentration A mass % at the bonding interface and a Cu concentration B mass % at a position of 100 μm in a thickness direction from the bonding interface to the aluminum sheets side is 0.30 or more and 0.85 or less.
Abstract:
The printed circuit board module comprises: a printed circuit board including a first area and a second area; an electronic component disposed in the first area; and a partition line disposed between the first area and the second area, wherein the partition line is disposed to be stepped with respect to a surface of the printed circuit board.
Abstract:
Circuit board assemblies include a circuit board portion having a recess formed therein, an electrically and thermally conductive insert, shaped to fit in the recess formed in the circuit board portion, an electrically and thermally conductive layer adapted and configured to interface with an external chassis, and a thermally conductive electrically insulative portion interposed between the electrically and thermally conductive insert and the electrically and thermally conductive layer, adapted and configured to conduct heat from the electrically and thermally conductive insert to the electrically and thermally conductive layer without conducting electricity.
Abstract:
A laminated structure and the manufacturing methods thereof are provided. The structure includes an interconnect substrate having a first surface and a second surface opposite to the first surface, an insulating encapsulant laterally wrapping the interconnect substrate, and a redistribution structure disposed on the first surface of the interconnect substrate and electrically connected with the interconnect substrate. The redistribution structure has a third surface facing the first surface and a fourth surface opposite to the third surface. The redistribution structure includes first pads, second pads located beside the first pads, and protective patterns disposed on the first pads and covering the first pads. The first pads include pad portions protruded from the fourth surface and the protective patterns are in contact with sidewalls and top surfaces of the pad portions of the first pads.