Patent ID: 7606075
Filing Date: 2009-10-20
Classification: G11C

Abstract:
1. A method of performing a read operation on a target memory cell of a non-volatile memory device having at least two strings of series-coupled non-volatile memory cells, the method comprising: applying a first potential to a bit line selectively coupled to a string of series-coupled non-volatile memory cells containing the target memory cell; applying a second potential to a source line selectively coupled to the string of series-coupled non-volatile memory cells containing the target memory cell; applying a third potential to one or more source lines selectively coupled to the bit line and not selectively coupled to the string of series-coupled non-volatile memory cells containing the target memory cell, wherein the third potential has a value different than the second potential and wherein the third potential is not a ground potential of the memory device; and reading a data value of the target memory cell from a string of non-volatile memory cells containing the target memory cell.