Abstract:
PROBLEM TO BE SOLVED: To provide a multilayer laminated circuit board hardly causing the disconnection of a metal circuit. SOLUTION: The multilayer laminated circuit board has a laminate structure having a resin film and a circuit layer laminated by turns. The circuit layer includes the metal circuit, and the thermal expansion of a resin film of one layer among the resin films is different from that of the resin film of at least another layer. Here, a relation of 0.015≤B/A≤8.75 is satisfied, where A is the thickness of the resin film of the one layer among the resin films and B is the thickness of the circuit layer adjoining the resin film. Further, a relation of 0.02≤D/C≤0.8 is satisfied, where C is the area of one surface of the resin film of the one layer among the resin films, and D is the area that the metal circuit formed on the surface of the resin film occupies. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a conductive sheet in which an insulating substrate and a metallic layer have high adhesive properties while a fine circuit can be formed. SOLUTION: Regarding the conductive sheet in which the metallic layer is formed to at least a part of the surface of the insulating substrate, the insulating substrate is formed in a long shape, and the surface roughness of an Ra value of the irradiating section of cations reaches 0.2 to 200 nm by irradiating at least the part of the surface of the substrate with cations. Regarding the conductive sheet, the metallic layer is formed to the section irradiated with cations by a sputtering method or an evaporation method. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a means to effectively prevent a silver material for electric/electronic components from qualitatively changing without deteriorating the intrinsic characteristics of silver. SOLUTION: This silver-stabilized laminate has a stabilizing layer with a thickness of less than 1 μm constituted of either of gold, tin or an alloy containing the former two laminated on the entirety of a surface formed of silver. The stabilizing layer may be laminated using either of a sputtering process, a vapor deposition process or a plating process. COPYRIGHT: (C)2004,JPO