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1. (WO2018040969) METHOD AND DEVICE FOR IMPROVING RELIABILITY OF NAND FLASH MEMORY

Pub. No.:    WO/2018/040969    International Application No.:    PCT/CN2017/098239
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Tue Aug 22 01:59:59 CEST 2017
IPC: G11C 5/14
Applicants: FUJIAN LANDI COMMERCIAL EQUIPMENT CO., LTD
福建联迪商用设备有限公司
Inventors: WU, Xuan
吴旋
Title: METHOD AND DEVICE FOR IMPROVING RELIABILITY OF NAND FLASH MEMORY
Abstract:
The present invention relates to the technical field of flash memory, and provides a method and device for improving reliability of a NAND flash memory. The method comprises the following steps: upon receiving an interrupt signal, a NAND controller (13) determining a type of a current operation of a NAND flash memory; if the type indicates a programming operation, then completing the programming operation by employing a capacitor (12), and resetting, by means of the NAND controller (13), the NAND flash memory to terminate the current operation; and if the type indicates a non-programming operation, then resetting, by means of the NAND controller (13), the NAND flash memory to terminate the current operation. The advantageous effect of the method of the present invention is achieving effective prevention of NAND flash data damage caused by a power failure by means of capturing critical operations to be protected, i.e., programming operations, at a power failure, and ensuring completion of the critical operations upon a power failure, thus ensuring data reliability of a terminal employing a NAND flash memory.