Patent ID: 8106445
Filing Date: 2012-01-31
Classification: H01L

Abstract:
1. A nonvolatile semiconductor memory device comprising: a memory cell configured to store data; and a resistor element provided around the memory cell, the memory cell including: a charge storage layer provided above a substrate and configured to accumulate charges; a first semiconductor layer formed on a top surface of the charge storage layer via an insulating layer; and a first low resistive layer formed on a top surface of the first semiconductor layer and having a resistance lower than that of the first semiconductor layer, the resistor element includes: a second semiconductor layer formed on the same layer as the first semiconductor layer; and a second low resistive layer formed on the same layer as the first low resistive layer and on a top surface of the second semiconductor layer, the second low resistive layer having a resistance lower than that of the second semiconductor layer, the second semiconductor layer being formed to extend in a first direction parallel to the substrate, and the second low resistive layer being formed at both ends of the second semiconductor layer in the first direction.