Patent ID: 7468911
Filing Date: 2008-12-23
Classification: G11C

Abstract:
1. A non-volatile storage system, comprising: a set of non-volatile storage elements which is provided in a plurality of NAND strings; a plurality of word lines in communication with set of non-volatile storage elements; and one or more control circuits in communication with the set of non-volatile storage elements, the one or more control circuits: (a) determine a set of voltages to be applied to unselected word lines of the plurality of word lines based on which boosting mode of multiple available boosting modes is currently selected by the one or more control circuits, and (b) program the set of non-volatile storage elements, including applying the set of voltages to the unselected word lines, the set of voltages boosts channel regions associated with unselected NAND strings of the plurality of NAND strings, and applying a program voltage to a selected word line of the plurality of word lines while the channel regions are boosted.