Patent ID: 9245637
Filing Date: 2016-01-26
CPC Classification: G11C

Claim Text:
1. A method of reading non-volatile storage, comprising: applying a set of read voltages to a selected word line as part of reading data from a set of non-volatile storage elements coupled to the selected word line, the set of read voltages including a first read voltage, a second read voltage, and a third read voltage, the first read voltage is less than the second read voltage, and the second read voltage is less than the third read voltage; determining whether data of a first unselected word line that is adjacent to the selected word line is invalid, wherein the data of the first unselected word line is determined to be invalid in response to a file associated with the data of the first unselected word line being rewritten to another location in the non-volatile storage; if the data of the first unselected word line is valid, applying to the first unselected word line a first pass voltage while applying the first read voltage, a second pass voltage while applying the second read voltage, and a third pass voltage while applying the third read voltage, the first pass voltage is greater than the second pass voltage and the second pass voltage is greater than the third pass voltage; and if the data of the first unselected word line is invalid, applying to the first unselected word line the first pass voltage while applying the first read voltage, the second read voltage, and the third read voltage.