摘要:
The present invention relates to a wiring member including: a copper foil layer having a smooth surface with a surface roughness Rz of 2 μm or less; a noise suppressing layer containing a metallic material or a conductive ceramic and having a thickness of 5 to 200 nm; and an insulating resin layer provided between the smooth surface of the copper foil layer and the noise suppressing layer, and also relates to a printed wiring board equipped with the wiring member. Moreover, the present invention relates to a noise suppressing structure including: a first conductive layer; a second conductive layer; a noise suppressing layer provided between the first conductive layer and the second conductive layer, the noise suppressing layer being to be electromagnetically-coupled with the first conductive layer, the noise suppressing layer comprising a metallic material or a conductive ceramic, and the noise suppressing layer having a thickness of 5 to 300 nm; a first insulating layer provided between the first conductive layer and the noise suppressing layer; and a second insulating layer provided between the second conductive layer and the noise suppressing layer; wherein the noise suppressing structure has: a region (I) in which the noise suppressing layer and the first conductive layer face each other; and a region (II) in which the noise suppressing layer and the first conductive layer do not face each other but the noise suppressing layer and the second conductive layer face each other, the regions (I) and (II) neighboring each other.
摘要:
The present invention provides a conductive composition comprising (i) a cyano group-containing polymer compound which is a copolymer of a cyano group-containing monomer and a vinyl group-containing monomer, and n-conjugated conductive polymer.
摘要:
A push-button switch member which utilizes light energy without any loss for back-lighting on a display section and which realizes the back-lightening to the display section with an even luminance while suppressing power consumption and having high visibility and thin thickness. The push-button switch member includes a key-top portion and a cover base member which is provided at a predetermined portion of the key-top portion and which is adapted to be mounted to the circuit board. The key-top portion includes a display section for displaying a switching function and an area emitter which is integrally formed with the display section. The area emitter member is provided with a light emitting layer disposed between a base electrode and a transparent electrode, which is disposed so as to oppose the base electrode. The transparent electrode is arranged to be contacted to the display section and is formed of a transparent conductive polymer.
摘要:
A film adhesive of a thermoplastic or thermosetting polymeric insulative material can be imparted with anisotropic electroconductivity by dispersing electroconductive fibrils of specified dimensions therein in orientation each lying within a plane substantially parallel to the surface of the film adhesive. The film adhesive is useful in adhesively bonding two circuit boards each having a plurality of electric terminals to be electrically connected each on one circuit board to the oppositely positioned terminal on the other circuit board. The orientation of the fibrils in a plane parallel to the surface of the film adhesive may be either unidirectional or at random.