Patent ID: 8293576

Claim:
A method of manufacturing a semiconductor device, comprising: temporarily fixing a semiconductor chip to a supporting member to direct a connection electrode of the semiconductor chip toward the supporting member side; forming an insulating layer for preventing resin-permeation covering the semiconductor chip, on the supporting member and the semiconductor chip; forming a resin substrate sealing a periphery and a back surface side of the semiconductor chip, on the insulating layer, wherein the resin substrate contacts the insulating layer to prevent resin-permeation; removing the supporting member to expose the connection electrode of the semiconductor chip; forming an interlayer insulation layer on the semiconductor chip and the insulating layer to prevent resin-permeation; forming, in the interlayer insulation layer, a via hole reaching the connection electrode of the semiconductor chip, wherein a surface of the interlayer insulation layer except the via hole is flat; and polishing the resin substrate and the insulating layer to prevent resin-permeation; wherein a back surface of the semiconductor chip and a part of the insulating layer for preventing resin-permeation covering a side surface of the semiconductor chip are exposed.