Abstract:
An electronic circuit board is formed by a pattern forming step for forming a conductive pattern of an electronic circuit board by applying a metal colloid solution on a base material by an inkjet method and a coagulant application step for applying a coagulant solution at least on the conductive pattern by a deposition method.
Abstract:
PROBLEM TO BE SOLVED: To provide a prepreg including an insulative resin composition impregnated into a porous material support medium, and to provide a printed circuit board including the prepreg as an insulating layer.SOLUTION: According to the invention, the porous support medium used for impregnating with the insulative resin composition has excellent heat stability, a wide surface area, and a thermal expansion coefficient unchanged by directional character. Since the prepreg has such a structure that the filler included in the insulative resin composition is dispersed between plural porous support media, the thermal expansion coefficient of the support medium is effciently improved. Further, even if the prepreg is damaged from outside, the damage is not enlarged but caused locally as a result of adjacent porous support media. Furthermore, the prepreg has excellent property against compressive load because of its porous structure, and thus enables reduction of damage in the printed circuit board.
Abstract:
PROBLEM TO BE SOLVED: To provide a method basically improved in consideration of the defect of a method using a laser for a structure formation in a plastic surface and a selective metal plating.SOLUTION: This invention relates to a selective metal plating method for the surface of a plastic substrate and the formed circuit component manufactured by the method. In the method, the plastic substrate contains tectoalumino silicate salt as an additive agent, which is naturally or synthetically manufactured, and the tectoalumino silicate salt is attained by the ablation treatment for the surface of the plastic substrate, then seeding is performed, and finally metal plating is performed without applying electric current from the outside.
Abstract:
PROBLEM TO BE SOLVED: To stabilize a dielectric constant of a ceramic electronic component by providing a ceramic electronic component that has closed pores finely and uniformly distributed in borosilicate glass, and to provide a method of manufacturing the same. SOLUTION: The ceramic electronic component includes a ceramic sintered compact 1 and an Ag electrode 2 provided on a surface or in an inner layer of the ceramic sintered compact 1. The ceramic sintered compact 1 is configured such that a plurality of fillers 5, the plurality of closed pores 4, and a plurality of open pores 3 are provided in a borosilicate glass phase, and the closed pores 4 are uniformly distributed in the borosilicate glass phase. Consequently, the dielectric constant of the ceramic electronic component is stabilized. COPYRIGHT: (C)2011,JPO&INPIT