Method and device for dynamically predicting service life of flash memory chip online

A flash memory chip and dynamic prediction technology, which is applied in static memory, information storage, read-only memory, etc., can solve the problems of real-time prediction of flash memory chips, and it is difficult to predict the remaining life value, and achieve high accuracy.

Active Publication Date: 2018-11-06
武汉置富半导体技术有限公司
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  • Abstract
  • Description
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Problems solved by technology

[0004] The existing flash memory chip life prediction technology establishes a life prediction model based on the data collected once. This prediction method does not perform r

Method used

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  • Method and device for dynamically predicting service life of flash memory chip online
  • Method and device for dynamically predicting service life of flash memory chip online
  • Method and device for dynamically predicting service life of flash memory chip online

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Embodiment Construction

[0046] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0047] figure 1 For the present invention realizes the schematic flow chart of online dynamic prediction flash memory chip remaining life, the online dynamic prediction flash memory chip remaining life flow process shown in the figure is applicable to all flash memory chip types, below with a kind of flash memory chip product as embodiment figure 1 Give a detailed explanation.

[0048] In this embodiment, a multi-level cell NAND flash (MLC NAND flash) product under a certain manufacturing process is used as an object for online dynamic prediction of the remaining lifetime of a flash memory chip. Such as figure 1 shown

[0049] In step S01, the data required for predicting the service life of the target flash memo...

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Abstract

The invention relates to a method and a device for dynamically predicting a service life of a flash memory chip online. According to the method, reliability information of the flash memory chip is collected online, and a new life prediction operation is performed continuously, so as to overcome the defects of the conventional prediction technology, and perform the real-time predication on a remaining life of the flash memory chip.

Description

technical field [0001] The invention relates to the technical field of flash memory chip life prediction, in particular to a method and device for dynamically predicting the life of a flash memory chip online. Background technique [0002] In electronic equipment, memory has always been a very important component as a carrier for storing data. At present, memories used in electronic devices are mainly divided into two categories: volatile memories and nonvolatile memories. As a kind of non-volatile memory, flash memory chip has become the fastest-growing memory product in the fields of communication, consumption, computer, industrial control, military and other fields due to its high storage capacity and low manufacturing cost. occupies an absolutely important position in the sexual memory market. [0003] During the use of a flash memory chip, the medium of its storage unit will have defects as the number of programming / erasing cycles of the flash memory chip increases an...

Claims

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Application Information

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IPC IPC(8): G11C16/34G11C29/56G06N3/12
CPCG06N3/123G11C16/349G11C29/56
Inventor 潘玉茜李四林
Owner 武汉置富半导体技术有限公司
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