Patent attributes
A semiconductor wafer according to the present embodiment is a semiconductor wafer having a first face. A plurality of chip structures are provided on a plurality of chip regions of the first face. A test structure is provided on dicing regions between adjacent ones of the chip regions. The chip structures each comprise first integrated circuits provided on the semiconductor wafer, and a first stacked body provided above the first integrated circuits and including a plurality of first layers and a plurality of second layers different from the first layers alternately stacked. The test structure comprises second integrated circuits provided on the semiconductor wafer, and a second stacked body provided above the second integrated circuits and including the first layers and the second layers alternately stacked.