A substrate having a built-in semiconductor apparatus includes: a semiconductor apparatus which comprises a first semiconductor chip having a first electrode pad formed on a main surface thereof, a protruding portion which is in contact with the first semiconductor chip and protrudes from a side surface of the first semiconductor chip to the outside, an apparatus wiring portion which is provided so as to extend from the first electrode pad onto a surface of the protruding portion, a conductive portion which is in connected with the apparatus wiring portion and provided on the apparatus wiring portion, and a sealing layer which covers the main surface and the surface of the protruding portion so as to expose a top face of the conductive portion; an insulating layer in which the semiconductor apparatus is embedded; an external terminal provided on the insulating layer; and a substrate wiring portion which electrically connects the conductive portion with the external terminal.