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US 12,592,294 B2Granted
Apparatuses, systems, and methods for storing error information and providing recommendations based on same
AssigneeMicron Technology, Inc.
InventorSujeet Ayyapureddi
Life of this patent
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Abstract
Per-row recent and/or baseline error information for word lines may be stored along the word lines in some examples. In some examples, baseline error information may be stored in a fuse array. In some examples, the baseline error information may be loaded from the fuse array to a memory array. In some examples, based on the recent and/or baseline error information, the memory device may provide a post-package repair recommendation.
Claims7
An apparatus comprising:
- a memory array comprising a plurality of word lines configured to store a plurality of code words;
- a mode register;
- an error correction code (ECC) circuit configured to detect and correct errors in the plurality of code words;
- an error correction and scrub (ECS) circuit configured to:
- receive an active detection signal from the ECC circuit when the ECC circuit detects an error in a code word of the plurality of code words of a word line of the plurality of word lines and update a value indicative of a number of code words of the plurality of code words with errors for the word line;
- and
- analyze the value and provide to the mode register a row address associated with the word line based on the analysis, wherein the mode register is configured to store the row address.
4 more elements
Dependencies are inferred from the claim text.