Patent ID: 8336205

Claim:
A method of manufacturing a printed wiring board, comprising: providing a base substrate comprising a first insulation layer, a second insulation layer, and a conductive film, wherein the conductive film is provided on a first surface of the first insulation layer, the second insulation layer is provided on a second surface opposite to the first surface of the first insulation layer, and the second insulation layer has an opening for enclosing an electronic component; forming an alignment mark by removing at least a portion of the conductive film; placing the electronic component over the first insulation layer at a position determined based on the alignment mark; forming a third insulation layer comprising an uncured resin material over the electronic component and the second insulation layer; thermopressing the third insulation layer to press out the uncured resin material from the third insulation layer and fill a space inside the opening with the resin material; forming a via hole penetrating the conductive film and the first insulation layer, the via hole being formed at a position determined based on the alignment mark, and the via hole exposing a terminal of the electronic component; plating a surface of the conductive film and a surface of the via hole to form a via conductor in the via hole and to form a conductive layer on the conductive film, the via conductor being connected to the terminal of the electronic component; and patterning the conductive layer to form a conductive circuit connected to the via conductor.