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Storage device and a garbage collection method thereof

A storage device and garbage collection technology, which is applied in the direction of memory system, memory architecture access/allocation, memory address/allocation/relocation, etc., and can solve problems such as increased algorithm complexity

Pending Publication Date: 2021-04-16
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the capacity of the storage block increases, the complexity of the algorithm used to prevent EPI errors increases

Method used

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  • Storage device and a garbage collection method thereof
  • Storage device and a garbage collection method thereof
  • Storage device and a garbage collection method thereof

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Embodiment Construction

[0029] Hereinafter, exemplary embodiments of the inventive concept will be described using a storage device using a flash memory device. However, those skilled in the art will understand that the inventive concept is not limited thereto, and the inventive concept may be implemented or applied through other embodiments. It will be further understood that throughout the drawings, like reference numerals may designate like or similar elements.

[0030] figure 1 is a block diagram illustrating a storage device according to an exemplary embodiment of the inventive concept. refer to figure 1 , the storage device 100 may include a storage controller 110 and a nonvolatile memory device 120 . In an exemplary embodiment of the inventive concept, each of the memory controller 110 and the nonvolatile memory device 120 may be implemented with one chip, one package, or one module. Alternatively, the storage controller 110 and the nonvolatile memory device 120 may be implemented with one...

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Abstract

A memory management method of a storage device including: programming write-requested data in a memory block; counting an elapse time from a time when a last page of the memory block was programmed with the write-requested data; triggering a garbage collection of the storage device when the elapse time exceeds a threshold value; and programming valid data collected by the garbage collection at a first clean page of the memory block.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2019-0127885 filed with the Korean Intellectual Property Office on October 15, 2019, the entire contents of which are hereby incorporated by reference. technical field [0003] Exemplary embodiments of the inventive concept relate to a semiconductor memory device, and in particular, to a storage device and a garbage collection method thereof. Background technique [0004] Flash memory devices are non-volatile memory chips used for storage and data transfer. It has the ability to be electronically reprogrammed and erased, and is widely used as an information device (such as computers, smart phones, personal digital assistants (PDAs), digital cameras, camcorders, tape recorders, MP3 players, and handheld personal computers (PCs). )) voice and image data storage media. Nowadays, flash memory devices having a three-dimensional array structure are bein...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/02G06F12/1009
CPCG06F12/0246G06F2212/7205G06F2212/7201G06F2212/7208G06F2212/7209G06F2212/7203G06F2212/1032G06F11/3037G06F11/3058G06F2201/81G06F2201/835G06F12/0253G06F3/0614G06F3/064G06F3/0658G06F3/0679G06F12/0873G06F12/0882G06F3/0646
Inventor 李庚德沈荣燮
Owner SAMSUNG ELECTRONICS CO LTD