Abstract:
A wiring board of the present invention is structured with first substrate 1, second substrate 2 having a smaller mounting area than that of first substrate 1, and base substrate 3 laminated between first substrate 1 and second substrate 2, and having vias 44 formed in at least either first substrate 1 or second substrate 2 and a through-hole 63 which penetrates base substrate 3.
Abstract:
PROBLEM TO BE SOLVED: To provide a multilayer printed circuit board structure and a manufacturing method relating to it, by which one or more electric components can be assembled inside a multilayer structure at comparatively low costs and high functional reliability.SOLUTION: A multilayer printed circuit board structure comprises: a laminate stack including electrical insulation layers 7, 9 and conductive path structures 10, 11; and an insert 1 that exists inside the laminate stack and expands in a lateral direction only in a partial region of a surface of the laminate stack, and to which at least one passive or active electric component 2 and related redistribution lines 4, 5 are mounted. The insert 1 is embedded between electrical insulation liquid resin layer or prepreg layers 7, 9 across two entire regions covering both faces of the insert, and a front face of the insert is surrounded by a resin material liquefied during compressing or laminating the structure without a gap.
Abstract:
An object of the present invention is to allow stress that may be applied to a semiconductor package to be suppressed, when the semiconductor package is mounted on a curved board. In a mount board 1, a semiconductor package 20 is mounted on a curved board 10 including a curved surface on at least a portion thereof. The curved board 10 includes a pedestal portion 13a disposed on a region of the curved surface portion where the semiconductor package 20 is mounted and having an upper surface thereof formed flat, and a plurality of pad portions 15a disposed on the flat surface of the pedestal portion 13a. The pedestal portion 13a is formed of an insulating material. The semiconductor package 20 is mounted on the pad portions 15a.