Non-volatile memory device and operation method thereof

Abstract

The present invention provides a non-volatile memory device and operation method thereof, wherein a non-volatile memory module of the non-volatile memory device includes a first physical block and a second physical block. The operation method includes the steps as follows. The non-volatile memory deviceshould be reformed and a first data reorganization completed restructuring should be wrote in at least one first page of the first physical block. When the non-volatile memory deviceis supplied power again after a power off event, the second physical block is conducted the erasing program. The first data reorganization wrote by the first physical block before the power off event is copied to at least one second page of the second physical block. The non-volatile memory device is continue to reform, and the second data reorganization reformed by the non-volatile memory device after the repeated power supply is wrote to the second physical block. The present invention can avoid the wrong data creating from reforming the non-volatile memory device after repeatedly supplying power to the non-volatile memory device.

Description

technical field [0001] The present invention relates to a memory device, and more particularly to a non-volatile memory device and its operating method. Background technique [0002] Generally, non-flash (NAND flash) memory is used as a hard disk for data storage media, such as solid state disk (solid state disk, SSD), embedded flash memory card (Embedded MultiMediaCard, eMMC) or mobile hard disk, etc., usually including multiple physical block (block), and each physical block will include multiple pages (page). Since a full physical block cannot be written repeatedly before being erased, when a host wants to update the data in the physical block, it will first write the new data to another non-full block. Entity block (temporary block) of . The other physical block will store valid data, and the data to be updated (original data) stored in the original physical block will be invalidated and retained in the original physical block. Therefore, when the space of the tempora...

AI Technical Summary

Problems solved by technology

However, as the data written in the solid-state hard disk increases, the content recorded in the information table will also increase.

Therefore, traditional solid-state drives need to use a very large storage space to place this information table

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