Data writing method and device for three-dimensional flash memory and readable storage medium

Abstract

The embodiment of the invention discloses a data writing method and device of a three-dimensional flash memory and a readable storage medium. The method includes: when data is written into the three-dimensional flash memory, distributing a target physical block corresponding to a logic block of to-be-written data on the three-dimensional flash memory; performing temperature sensing on the target physical block, and judging whether a preset data writing condition is met or not according to the temperature sensing information of the target physical block; if yes, writing the to-be-written data into the target physical block; and if not, searching a new physical block meeting the data writing condition on the three-dimensional flash memory, and writing the to-be-written data into the new physical block. Through the implementation of the method, the temperature sensing of the physical block is realized in the equipment driving layer by adopting a software / hardware collaborative design thought, and then the data is controlled to be written into the appropriate physical block based on the temperature sensing result, so that the process design of the three-dimensional flash memory does not need to be changed, the complexity of scheme implementation is relatively low, and the application stability is also relatively guaranteed.

Description

technical field [0001] The invention relates to the field of data storage, in particular to a data writing method, device and readable storage medium of a three-dimensional flash memory. Background technique [0002] As the latest generation of flash memory technology, three-dimensional flash memory achieves rapid growth in storage capacity by stacking flash memory in three dimensions, and can obtain storage capacity several times that of traditional chips. Due to the high storage capacity of 3D flash memory, it is favored by users in more and more industries. [0003] However, in the management of the existing 3D flash memory, the system will perform frequent read and write operations on a specific logical address, so that the local temperature of the physical address corresponding to the logical address on the 3D flash memory will continue to rise, resulting in the reliability of the flash memory. Decrease, the bit error rate of the data increases significantly. At prese...

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the embodiments of the present invention is to provide a data writing method, device, and readable storage medium for a three-dimensional flash memory, which can at least solve the problem of complex implementation of the solution when using circuit-level technology to improve the reliability of the three-dimensional flash memory in the related art. High, the stability of the application is relatively limited

Images