Patent ID: 11881271
Assignee: SANDISK TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 13:
14. The non-volatile storage apparatus of claim 1, wherein:
the control circuit is configured to lower the voltages of the unselected word lines nearby the selected word line to respective intermediate voltages in order to create a channel potential gradient in NAND strings of unselected sub-blocks that includes a first channel voltage under WLn, a second channel voltage under WLn-1 and WLn-2, a third channel voltage under WLn-3 and WLn-4, and a fourth channel voltage under WLn-5 and WLn-6, wherein WLn is the selected word line; and
the fourth channel voltage >the third channel voltage >the second channel voltage >the first channel voltage.