Patent ID: 11955183
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 15:
16. A method of reading data in a non-volatile memory including a memory cell region bounded on a first end by a first word line cut and bounded on a second end opposite the first end by a second word line cut, a plurality of inner memory cell strings including first memory cells of the memory cell region that are connected to a plurality of inner pillars extending vertically upward through an inner region of the memory cell region, a plurality of outer memory cell strings including second memory cells of the memory cell region that are connected to a plurality of outer pillars extending vertically upward through an outer region of the memory cell region, the outer region being adjacent to the first and second word line cuts than the inner region, a plurality of first bit lines connected to the inner pillars, a plurality of second bit lines connected to the outer pillars,
performing a first read on the first memory cells using a first read method and the first bit lines and storing a first result of the first reading into a first latch in a first page buffer circuit;
performing a second read on the first memory cells using a second read method different from the first read method and the first bit lines and storing a second result of the second reading into a second latch in the first page buffer circuit;
performing a third read on the second memory cells using the first read method and the second bit lines and storing a third result of the third reading into a third latch in a second page buffer circuit;
performing a fourth read on the second memory cells using the second read method and the second bit lines and storing a fourth result of the fourth reading into a fourth latch in the second page buffer circuit; and
outputting the first result in the first latch as a first read data of the first memory cells, and the fourth result in the fourth latch as a second read data of the second memory cells.