摘要:
An optoelectronic wiring board includes a flex-rigid substrate and an optical communication unit. The flex-rigid substrate includes a flexible substrate provided with an electric wiring, and a pair of rigid sections provided on both sides of the flexible substrate. The pair of rigid sections each include a lamination formed of a conductive circuit and an insulating layer. The optical communication unit is made of a flexible material and has both end faces substantially perpendicular to its optical path of transmitting light. Both end portions of the optical communication unit are disposed and fixed on the rigid sections so that both end faces of the optical communication unit face an optical element mounting region provided on the rigid sections of the flex-rigid substrate.
摘要:
A printed wiring board includes a core substrate, a first conductive layer on a first surface of the substrate, a second conductive layer on a second surface of the substrate, and a through-hole conductor connecting the first and second conductive layers. The substrate has an insulation structure and a metal layer, the metal layer has opening through which the conductor passes and has side wall recessed into the metal layer and forming the opening, the structure has first resin layer on one side of the metal layer, second resin layer on the opposite side and filler filling the opening, the conductor has first portion in the first layer and second portion in the second layer, the first and second portions are connected in the filler, the first portion is tapered from the first toward second conductive layers, and the second portion is tapered from the second toward first conductive layers.
摘要:
A printed wiring board has a metal layer, a resin structure having a first resin layer portion formed on a first surface of the metal layer, a second resin layer portion formed on a second surface of the metal layer, and a filler resin portion filling an opening portion of the metal layer, a first circuit formed on the first resin portion, a second circuit formed on the second resin portion, and a through-hole conductor formed through the first resin, filler resin and second resin portions and connecting the first and second circuits. The through-hole conductor has a first portion narrowing from the first circuit toward the second resin portion and a second portion narrowing from the second circuit toward the first resin portion, and the first portion is connected to the second portion at a connected position shifted from the middle point of the thickness of the metal layer.
摘要:
An optical communication device is provided that includes a flex-rigid substrate including a flexible substrate provided with an electric wiring, and a pair of rigid sections provided on both sides of the flexible substrate. The pair of rigid sections each includes a lamination formed of a conductive circuit and an insulating layer. The optical communication device also includes optical communication means made of a flexible material and having both end faces substantially perpendicular to its optical path of transmitting, and a pair of optical elements having their respective optical functional portions that are mounted on the rigid sections of the flex-rigid substrate. Both end portions of the optical communication means are disposed and fixed on the rigid sections, and at least one of the end faces is optically coupled with at least one of the optical functional portions of the optical elements through a coupling optical element.
摘要:
An optical and electrical circuit board includes a patterned electrical wiring and a micro convex lens. The micro convex lens is provided in at least one hole formed in the optical and electrical circuit board.
摘要:
An optoelectronic wiring board includes a rigid, a flexible flex section made of an optical wiring, a flex rigid substrate section provided with an electric wiring, and optical wiring means. In the rigid section, a lamination which is formed of a conductive circuit and an insulating layer is formed on both sides of a substrate. The flexible flex section is made of an optical wiring. The flex rigid substrate section is provided with an electric wiring. The optical wiring means has an end face substantially perpendicular to the optical wiring means. The end face is arranged facing an optical element mounting region provided on the rigid section, and at least a part of the flex section is fixed on the rigid section.
摘要:
An optical and electrical circuit board includes a patterned electrical wiring and a micro convex lens. The micro convex lens is provided in at least one hole formed in the optical and electrical circuit board.
摘要:
A printed wiring board includes a resin insulation layer having a first surface and a second surface on an opposite side of the first surface, the resin insulation layer having an opening for a first via conductor, a pad formed on the first surface of the resin insulation layer and provided to mount an electronic component, a first conductive circuit formed on the second surface of the resin insulation layer, and a first via conductor formed in the opening and connecting the pad and the first conductive circuit. The pad has an embedded portion embedded in the resin insulation layer and a protruding portion protruding from the resin insulation layer, and the embedded portion has an external shape which is greater than an external shape the protruding portion.
摘要:
The present invention relates to a process for producing a polycondensation product by polycondensing monomers including (A) an aromatic or heteroaromatic compound containing a polyether chain, (B) optionally an aromatic or heteroaromatic compound which is different from monomer (A), and (C) an aldehyde, in the presence of a protonation catalyst, wherein the aldehyde is provided by a fast-releasing aldehyde source and a slow-releasing aldehyde source.
摘要:
A method for manufacturing a printed wiring board including preparing a carrier, forming a metal layer on the carrier, forming an etching resist on the metal layer, forming a metal film from the metal layer underneath the resist by removing portion of the metal layer exposed through the resist and part of the metal layer contiguous to the portion of the metal layer and underneath the resist, forming a coating layer on side surface of the film and the carrier, forming a pad on the coating layer, removing the resist, forming a resin insulation layer on the film and surface of the pad, forming an opening reaching the surface of the pad in the insulation layer, forming a conductive circuit on the insulation layer, forming a via conductor connecting the circuit and the pad in the opening, removing the carrier from the film and coating layer, and removing the film.