3D STACKED SEMICONDUCTOR DEVICE USING ECC WORD AND METHOD FOR OPERATING THEREOF

摘要

A semiconductor device includes a semiconductor substrate and a plurality of layers vertically laminated on the semiconductor substrate. Plural bits of an ECC word stored by the semiconductor device are divided to be stored in the layers, and the positions of at least two of the bits in the layers are different from each other. Since the bits of the ECC word are divided to be stored in a 3D stacked semiconductor device, a multi-bit error may be detected and corrected so that reliability of data may be improved.