Patent ID: 8426947

Claim:
A laminated semiconductor wafer, comprising: a plurality of semiconductor substrates having a plurality of scribe-groove parts formed along scribe lines, each of the plurality of semiconductor substrates including: a plurality of device regions insulated from each other, each of which is in contact with at least one of the plurality of scribe-groove parts and has a semiconductor device formed therein; a wiring electrode connected to the semiconductor device formed in each of the device regions and extending from the device region to the inside of the scribe-groove part, wherein when a part, in a peripheral edge part of the device region along the scribe-groove part, which the wiring electrode crosses is an extending zone, each of an uppermost substrate laminated on the top side and a lowermost substrate laminated on the bottom side in the plurality of semiconductor substrates has an electromagnetic shielding layer formed using a ferromagnetic body, and the electromagnetic shielding layer is formed in a shielding region except the extending zone on a first surface, in surfaces of the semiconductor substrate, where the plurality of device regions are formed.