Patent ID: 7459340

Claim:
A method of manufacturing a semiconductor device, comprising: forming a plurality of openings penetrating in a thickness direction in a base plate forming sheet made of material including a thermosetting resin in a semi-cured state; filling a vertical conductor forming paste including a conductive paste into each of the openings of the base plate forming sheet; arranging a plurality of semiconductor constructs each having a semiconductor substrate and a plurality of external connection electrodes provided on one surface of the semiconductor substrate in such a manner as to leave space between them on the vertical conductor forming paste and the base plate forming sheet; curing the thermosetting resin in the base plate forming sheet to form a base plate, curing the vertical conductor forming paste to form a plurality of vertical conductors, and securing the semiconductor constructs onto the base plate in a state where the external connection electrodes are respectively connected to the vertical conductors; forming an insulating layer on the base plate around the semiconductor constructs; and cutting the insulating layer and the base plate between the semiconductor constructs, thus obtaining a plurality of semiconductor devices each including at least one semiconductor construct.