Patent ID: 7018866

Claim:
A circuit component built-in module manufacturing method, the circuit component-built in module including: a first electrical insulating substrate made of a mixture containing an inorganic filler and a thermosetting resin; a plurality of wiring patterns formed at least on a principal surface of the first electrical insulating substrate; a semiconductor chip incorporated in the first electrical insulating substrate and connected electrically with the wiring patterns; and inner vias formed to pass through the first electrical insulating substrate so as to electrically connect the plurality of wiring patterns with one another, the method comprising: (a) preparing a plate-like member by forming through holes in the first electrical insulating substrate and filling the through holes with a thermosetting conductive material; (b) mounting a semiconductor chip on wiring patterns formed on a release carrier; (c) grinding a non-wiring surface of the semiconductor chip so as to reduce a thickness of the semiconductor chip to not less than 30 μm to not more than 100 μm; (d) aligning and laminating the plate-like member on a surface of the release carrier where the wiring patterns are formed so that the wiring patterns fall on the through holes filled with the conductive material, and applying pressure thereto so that the semiconductor chip is embedded in the plate-like member, thereby obtaining a semiconductor-chip-embedded product; (e) heating the semiconductor-chip-embedded product so that the mixture and the conductive material are cured simultaneously, to obtain the circuit component built-in module with a thickness of not less than 80 μm and not more than 200 μm; and (f) removing the release carrier.