Patent ID: 7342563

Claim:
A method of testing a substrate assembly, the substrate assembly comprising: a substrate; a peripheral circuit embedded in the substrate; a first wiring arranged on the substrate; an integrated circuit having a first terminal connected to an interconnection portion arranged on the first wiring on the substrate; a second wiring which extends from the interconnection portion in such a manner that at least a portion of the second wiring is routed in a portion of the substrate facing the integrated circuit; a first external circuit connection terminal arranged on the second wiring in a portion of the substrate not facing the integrated circuit; a third wiring routed through the portion of the substrate facing the integrated circuit; and a second external circuit connection terminal arranged on the third wiring in the portion of the substrate not facing the integrated circuit, and the integrated circuit further comprising a second terminal, which is connected to another interconnection portion arranged on the third wiring, the method comprising: bringing a test probe into contact with the first external circuit connection terminal after the integrated circuit is connected to the substrate, and performing an electrical test on the integrated circuit through the test probe.