Abstract:
When a laser beam is incident on a thin film, carbide generated by the heat of the beam is not ejected between respective metallic thin plates. In each of second conductive sections of a metallic thin plate, a slit extends from a welding position to the end of the second conductive section. The second conductive sections are respectively welded to terminals by making the laser beam incident on the respective welding positions of a substrate for the thin film. Thereby, when the beam is incident on a resin, the resin is carbonized by the thermal energy of the laser beam and the resin carbide is ejected from the welded portion, and the carbide is discharged to the outside from the lower end of the second conductive section via the slit of the second conductive section. Thereby, the carbide is not ejected between the adjacent second conductive sections. Consequently, lowering of the insulation resistance between the respective second conductive sections due to the carbide is prevented.
Abstract:
The present disclosure relates to a method of obtaining fine circuitry features by positioning a circuit board precursor, the circuit board precursor having a cover layer and an insulating substrate, in proximity to a source of laser radiation. Selectively laser ablating through the cover layer and into the underlying insulating substrate and then treating with water, dilute alkali solution or dilute acid solution to remove the cover layer to reveal one or more circuitry features on the insulating substrate that are smaller than if a cover layer is not used.
Abstract:
A multi-chip lighting module is disclosed for maximizing luminous flux output and thermal management. In one embodiment, a multi-chip module device comprises a substantially thermally dissipative substrate with a dark insulating layer deposited on a surface of the substrate. A plurality of light emitting devices is also provided. An electrically conductive layer is applied to a surface of the substrate, with the conductive layer comprising a plurality of chip carrier parts each having a surface for carrying at least one of the light emitting devices. Each light emitting device has a first and a second electrical terminal. A reflective layer is also provided that at least partially covers the conductive layer.
Abstract:
Method for producing structured electrically conductive surfaces on a substrate, which comprises the following steps: a) structuring a base layer containing electrolessly and/or electrolytically coatable particles on the substrate by ablating the base layer according to a predetermined structure with a laser, b) activating the surface of the electrolessly and/or electrolytically coatable particles and c) applying an electrically conductive coating onto the structured base layer.
Abstract:
A photosensitive conductive paste for electrode formation, containing conductive metal particles, a glass binder, a monomer, a photoinitiator, an organic polymer binder, an organic medium and carbon black.
Abstract:
The present invention provides a method for preparing a conductive pattern, comprising a pattern forming step of forming a conductive pattern on a substrate; and a blackening processing step of blackening the surface of the conductive pattern by immersing the conductive pattern in an aqueous solution containing reducing metal ions to oxidize the surface of the conductive pattern, and a conductive pattern prepared therefrom.
Abstract:
There is provided a method for manufacturing a printed wiring board that allows molten scattered Cu and an overhang to be selectively removed while scarcely decreasing a thickness of wires, and an electrolytic etching solution suitably used in the method. In the method for manufacturing a printed wiring board in which a via that reaches from a surface copper layer to an inner-layer copper layer of a multilayer board in which copper layers and insulating layers are alternately layered is machined by means of a laser, a process of machining the via including steps of forming a laser absorbing layer on a surface of a copper layer disposed on the surface of the multilayer board, irradiating the laser, performing an electrolytic etching and removing the laser absorbing layer is carried out in this order.
Abstract:
A lighting device having a light emitting diode (LED). The device includes a metal substrate having a surface. A dielectric coating layer is superimposed on the surface of the metal substrate. A light emitting diode (LED) is supported on the dielectric coating layer. The metal substrate serves as a heat sink for the heat emitted by LED during operation.
Abstract:
A thermosetting adhesive and pressure-sensitive adhesive composition containing 100 parts by weight of an acrylic polymer (X) containing, as monomer components, a (meth)acrylic acid alkyl ester (a) where the alkyl group has 2 to 14 carbon atoms in an amount of 60 to 75% by weight relative to the total amount of monomer components, a cyano group-containing monomer (b) in an amount of 20 to 35% by weight relative to the total amount of monomer components, and a carboxyl group-containing monomer (c) in an amount of 0.5 to 10% by weight relative to the total amount of monomer components and 1 to 20 parts by weight of a carbolic acid-based resorcinol-type phenol resin (Y) represented by the following formula (1), and further containing an ultraviolet absorbent (Z). wherein R1 represents —CH2— or —CH2—O—CH2—, n is a positive integer, and m is an integer of 1 to 4.