公开(公告)号：US20180166148A1

公开(公告)日：2018-06-14

申请号：US15614654

申请日：2017-06-06

Applicant: MACRONIX INTERNATIONAL CO., LTD.

Inventor： Yu-Ming Huang ,  Hsiang-Pang Li ,  Kun-Cheng Hsu ,  Yuan-Hao Chang ,  Tei-Wei Kuo

IPC: G11C29/44 ,  G06F11/27 ,  G11C29/10

CPC classification number: G11C29/44 ,  G06F11/27 ,  G11C8/14 ,  G11C29/10 ,  G11C2029/1202

Abstract: A control method for a memory device is provided. The control method includes the following steps. Convert multiple input bits on multiple bit-channels into a code word through a polar code transformation. Select a boundary bit-channel among the bit-channels according to a first ranking list for the bit-channels. Identify a target memory cell among the memory cells according to the boundary bit-channel and a generator matrix of the polar code transformation. Decrease a raw bit error rate of the target memory cell.

公开(公告)号：US10049764B2

公开(公告)日：2018-08-14

申请号：US15614654

申请日：2017-06-06

Applicant: MACRONIX INTERNATIONAL CO., LTD.

Inventor： Yu-Ming Huang ,  Hsiang-Pang Li ,  Kun-Cheng Hsu ,  Yuan-Hao Chang ,  Tei-Wei Kuo

IPC: G11C16/06 ,  G11C29/44 ,  G06F11/27 ,  G11C29/10 ,  G11C29/12

CPC classification number: G11C29/44 ,  G06F11/1012 ,  G06F11/27 ,  G11C8/14 ,  G11C29/10 ,  G11C2029/1202 ,  H03M13/13

Abstract: A control method for a memory device is provided. The control method includes the following steps. Convert multiple input bits on multiple bit-channels into a code word through a polar code transformation. Select a boundary bit-channel among the bit-channels according to a first ranking list for the bit-channels. Identify a target memory cell among the memory cells according to the boundary bit-channel and a generator matrix of the polar code transformation. Decrease a raw bit error rate of the target memory cell.