Patent ID: 8085607
Filing Date: 2011-12-27
Classification: G11C

Abstract:
1. A method of reading a non-volatile semiconductor memory including at least one memory cell pair formed with a first memory cell and a second memory cell, the method comprising: sensing a threshold voltage of the first memory cell with a first reference voltage; sensing a threshold voltage of the second memory cell with a second reference voltage; generating a data bit in response to the sensing of the threshold voltage of the first memory cell and the threshold voltage of the second memory cell; setting a first latch data and a second latch data to a first state; changing the second latch data in response to the sensing of the threshold voltage of the first memory cell with the first reference voltage; changing the first latch data in response to the second latch data; changing the first latch data in response to the sensing of the threshold voltage of the second memory cell with the second reference voltage; and generating the data bit further comprising providing the first latch data.