Memory system and operating method thereof
First Claim
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1. An operating method of a memory system including a plurality of memory blocks, comprising:
- grouping pages of a selected memory block among the plurality of memory blocks based on a program time;
sequentially performing a test read on the groups of the pages;
detecting an error in the pages of the test-read groups; and
reprogramming a page selected based on a result of the error detection,wherein the sequentially performing of the test read on the groups comprises performing the test read at a specific time interval in order of the groups of the pages from a group of pages having a longer lapse of a program time to a group of pages having a shorter lapse of a program time.
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Abstract
An operating method of a memory system including a plurality of memory blocks may include grouping the pages of a selected memory block among the plurality of memory blocks based on a program time, sequentially performing a test read on the groups of the pages, detecting an error in the pages of the test-read groups, and reprogramming a page selected based on a result of the error detection.
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Citations
19 Claims
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1. An operating method of a memory system including a plurality of memory blocks, comprising:
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grouping pages of a selected memory block among the plurality of memory blocks based on a program time; sequentially performing a test read on the groups of the pages; detecting an error in the pages of the test-read groups; and reprogramming a page selected based on a result of the error detection, wherein the sequentially performing of the test read on the groups comprises performing the test read at a specific time interval in order of the groups of the pages from a group of pages having a longer lapse of a program time to a group of pages having a shorter lapse of a program time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An operating method of a memory system including a plurality of memory blocks, comprising:
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grouping pages of a selected block among the plurality of memory blocks by arranging the pages in order of a longer program lapse time; performing a test read on a first group of pages which has a program lapse time equal to or greater than a first threshold value, among the groups; detecting an error in the first page group; reprogramming a selected page of the first page group based on a result of the detection of the error; and regrouping pages other than the selected page into remaining groups. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification