Patent ID: 8130552
Filing Date: 2012-03-06
Classification: G11C

Abstract:
1. A method for operating non-volatile storage, comprising: (a) programming a particular non-volatile storage element to raise its threshold voltage above a coarse verify level, including verifying that the threshold voltage is above the coarse verify level, the coarse verify level is associated with a target data state of the particular non-volatile storage element; (b) after the verifying, programming at least one other non-volatile storage element which is series-connected to the particular non-volatile storage element; (c) reading the particular non-volatile storage element after the programming of the at least one other non-volatile storage element, to classify the particular non-volatile storage element into the target data state based on the threshold voltage; and (d) responsive to the classifying, further programming the particular non-volatile storage element to raise its threshold voltage above a fine verify level associated with the target data state.