The present invention provides a wiring board having a conductor portion on which mounting is suitably possible and a method for manufacturing the wiring board. Since an initial Cu plated layer is formed by plating so as to cover the surface of a metallized layer and then the initial Cu plated layer is heated to be softened or melted, copper in the softened or melted initial Cu plated layer enters into open pore portions of the metallized layer. In addition, during the heating, components of the metallized layer and components of the initial Cu plated layer are mutually thermally diffused. Consequently, when solidified later (that is, when the initial Cu plated layer becomes a lower Cu plated layer), the adhesiveness between the metallized layer and the lower Cu plated layer is improved due to, for example, an anchoring effect and a mutual thermal diffusion effect, and therefore mountability is improved.

A board includes a substrate having a bending property, a wiring pattern formed over the substrate and having a bending property, a conductive member formed over the wiring pattern, an electronic component; and a bonding member that bonds the conductive member and the electronic component to each other. And an electronic device includes a board having a bending property, a wiring pattern formed over the substrate and having a bending property, a conductive member formed over the wiring pattern, an electronic component; and a bonding member that bonds the conductive member and the electronic component to each other.

A membrane circuit structure with function expandability is provided. The membrane circuit structure includes a substrate, a lower circuit layer and a covering layer. The substrate includes a first region and at least one second region. The at least one second region is arranged near the first region. The lower circuit layer is printed on the first region. The lower circuit layer is made of a first conductive material. The covering layer is electroplated on a portion of a surface of the lower circuit layer. The covering layer is made of a second conductive material. At least one expansion line is welded on the corresponding second region, and electrically connected with the covering layer and a corresponding function-expanding unit.

A substrate for a printed circuit board according to the present invention includes a base film having an insulating property and including at least one opening; a first conductive layer that is formed on both surfaces of the base film by applying and heat-treating a conductive ink containing metal particles, and that fills the at least one opening; and a second conductive layer formed, by plating, on at least one of surfaces of the first conductive layer. The metal particles preferably have a mean particle size of 1 nm or more and 500 nm or less.

A patterned conductive article 200 includes a substrate 210 including a unitary layer 210-1 and includes a micropattern of conductive traces 220 embedded at least partially in the unitary layer. Each conductive trace extends along a longitudinal direction (y-direction) of the conductive trace and includes a conductive seed layer 230 having a top major surface 232 and an opposite bottom major surface 234 in direct contact with the unitary layer; and a unitary conductive body 240 disposed on the top major surface of the conductive seed layer. The unitary conductive body and the conductive seed layer differ in at least one of composition or crystal morphology. The unitary conductive body has lateral sidewalls 242, 244 and at least a majority of a total area of the lateral sidewalls is in direct contact with the unitary layer.

A coating liquid for forming a conductive layer according to the present invention is a coating liquid for forming a conductive layer, the coating liquid containing fine metal particles, a dispersant, and a dispersion medium. In the coating liquid for forming a conductive layer, the fine metal particles contain copper or a copper alloy as a main component, the dispersant is a polyethyleneimine-polyethylene oxide graft copolymer, a polyethyleneimine moiety in the graft copolymer has a weight-average molecular weight of 300 or more and 1,000 or less, a molar ratio of polyethylene oxide chains to nitrogen atoms in the polyethyleneimine moiety is 10 or more and 50 or less, and the graft copolymer has a weight-average molecular weight of 3,000 or more and 54,000 or less.

An LED module includes a substrate, a first conductive element formed on a top face of the substrate, wherein the first conductive element has a feature to bear at least 0.3 Amps of electrical current passing therethrough and conductive islands formed on a top face of substrate and one of which is electrically connected to the first conductive element. An insulation film is formed on a top face of the first conductive element and at least one patterned second conductive element is formed on the substrate to be electrically connected to the remainder of the conductive islands and crosses over the first conductive element at portions of the first conductive element having the insulation film formed thereon. An LED chip is mounted on the top face of the substrate to electrically connect to the first conductive element, the conductive islands and the patterned second conductive element.

[Problem] Provided is a composite member which can contribute to simple formation and/or increased quality of fine wiring. [Solution] A composite member 100 according to one embodiment of the present invention includes a base material, an aliphatic polycarbonate-containing layer with multiple island-shaped portions arranged on the base material, and a metal ink, wherein at least a surface of the aliphatic polycarbonate-containing layer with multiple island-shaped portions has a contact angle of 50 or more between pure water and the surface when exposed to ultraviolet light including a wavelength of 180 nm or more and 370 nm or less for 15 minutes, and the metal ink is arranged on the base material at at least a portion of a region sandwiched by the precursor layers.

A preparation process of a copper powder metal plating layer, a metal substrate having the copper powder metal plating layer, an energy-saving anti-burst heat dissipation device and a preparation process thereof; the process of preparing the copper powder metal plating layer comprises the step of attaching the metal layer; the temperature of the liquid in the work tank is kept within a range of 1-15 C.; the attachment process of the metal layer comprises at least the steps of: attaching the bottom layer, attaching the snowflake-shaped layer and attaching the fastening layer.

A hydrogen evolution assisted electroplating nozzle includes a nozzle tip configured to interface with a portion of a substructure. The nozzle also includes an inner coaxial tube connected to a reservoir containing an electrolyte and an anode, the inner coaxial tube configured to dispense the electrolyte through the nozzle tip onto the portion of the substructure. The nozzle also includes an outer coaxial tube encompassing the inner coaxial tube, the outer coaxial tube configured to extract the electrolyte from the portion of the substructure. The nozzle also includes at least one contact pin configured to make electrical contact with a conductive track on the substrate.