Patent ID: 9129696
Filing Date: 2015-09-08
Classification: G11C

Abstract:
1. A read method of a nonvolatile memory device which includes memory cells, the read method comprising: supplying a read voltage to a selected word line connected to a selected memory cell; applying a pre-charged voltage to a bit line connected to the selected memory cell; varying voltage of a sensing node corresponding to the bit line connected to the selected memory cell during a first time; latching the varied voltage of the sensing node as first data; boosting the sensing node by using a capacitor connected to the sensing node; varying voltage of the sensing node corresponding to the bit line connected to the selected memory cell during a second time different from the first time; and latching the varied voltage of the boosted sensing node as second data, wherein the read voltage applied to the selected word line and the pre-charged voltage applied to the bit line are maintained constantly during the first time and the second time.