公开(公告)号：US20210124693A1

公开(公告)日：2021-04-29

申请号：US16865580

申请日：2020-05-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： TAEHYO KIM ,  DAESEOK BYEON ,  TAEHONG KWON ,  CHANHO KIM ,  TAEYUN LEE

IPC: G06F12/123 ,  G06F12/02 ,  G06F12/14 ,  G11C11/408 ,  G11C11/4094 ,  G11C11/4091

Abstract: A memory device includes; a memory area including a first memory area including first memory cells storing N-bit data and a second memory area including second memory cells storing M-bit data, where ‘M’ and ‘N’ are natural numbers and M is greater than N, and a controller configured to read data stored in the first memory area using a first read operation, read data stored in the second memory area using a second read operation different from the first read operation, and selectively store data in one of the first memory area and the second memory area based on a frequency of use (FOU) of the data.

公开(公告)号：US20210124679A1

公开(公告)日：2021-04-29

申请号：US17007501

申请日：2020-08-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： TAEHYO KIM ,  DAESEOK BYEON ,  TAEHONG KWON ,  CHANHO KIM ,  TAEYUN LEE

IPC: G06F12/02 ,  G06F12/123 ,  G06F12/0811 ,  G06F12/14 ,  G11C11/408 ,  G11C11/4074 ,  G11C11/4091

Abstract: A memory device comprises a memory cell region including a first metal pad, and a peripheral circuit region including a second metal pad and vertically connected to the memory cell region by the first metal pad and the second metal pad, wherein the memory cell region includes a first memory area having first memory cells storing N-bit data and a second memory area having second memory cells storing M-bit data, where ‘M’ and ‘N’ are natural numbers and M is greater than N, and the peripheral circuit region includes a controller configured to read data stored in the first memory area using a first read operation, read data stored in the second memory area using a second read operation different from the first read operation, and selectively store data in one of the first memory area and the second memory area based on a frequency of use (FOU) of the data.