Patent ID: 9047971
Filing Date: 2015-06-02
Classification: G11C,H01L

Abstract:
1. A method of reading three dimensional non-volatile storage, comprising: electrically selecting one group of non-volatile storage elements for each bit line of a plurality of bit lines in a system that includes multiple groups of non-volatile storage elements in a common block being connected to each bit line of the plurality of bit lines, each group of non-volatile storage elements comprises multiple connected non-volatile storage elements, the multiple groups of non-volatile storage elements are part of a three dimensional memory structure, the non-volatile storage elements of the multiple groups of non-volatile storage elements have active areas disposed over a silicon substrate; applying an unselected voltage to unselected word lines; applying a first fixed potential from a respective bit line and maintaining, at the first fixed potential, channels of non-volatile storage elements that are connected to word lines on a drain side of a selected word line and that are in unselected groups of non-volatile storage elements; and applying a read compare voltage to the selected word line and sensing non-volatile storage elements that are connected to the selected word line and that are in selected groups of non-volatile storage elements; the selecting, applying the unselected voltage, maintaining and applying the read compare voltage are performed at the direction of managing circuitry that operates the system.