Patent ID: 9167702
Filing Date: 2015-10-20
Classification: H01L,H05K,Y10T

Abstract:
1. A method of manufacturing a component-built-in wiring substrate, comprising: a core substrate preparation step of preparing the core substrate having a core main-surface and a core back-surface; an accommodation-hole forming step of forming, in the core substrate, the accommodation hole which opens at least on a side toward the core main-surface; a through-hole forming step of forming through-holes which extend through the core substrate in a direction of thickness of the core substrate; a plating-layer forming step of forming a plating layer on an inner wall surface of the accommodation hole and plating layers on inner wall surfaces of the through-holes, the plating layers on the inner wall surfaces of the through-holes each becoming through-hole conductors having a hollow; an accommodation step of accommodating, in the accommodation hole, a component having a component main-surface, a component back-surface, and component side-surfaces, in such a manner that the core main-surface and the component main-surface face the same direction; a resin charging step of filling a resin filler into a gap between the component side-surfaces and the inner wall surface of the accommodation hole and into hollows, including: a wiring-laminate forming step of alternatingly laminating a resin interlayer-insulation layer and a conductor layer on the core main-surface and the component main-surface so as to form a wiring laminate.