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US 2017/0287544 A1Published application
Refresh circuitry
AssigneeMicron Technology, Inc.
InventorRichard N. Hedden
Life of this patent
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Abstract
The present disclosure includes apparatuses and methods related to refresh circuitry. An example apparatus can include a memory array including a main portion and a redundant portion. The apparatus can include refresh circuitry configured to, responsive to a determination of a hammering event, refresh at least a portion of the redundant portion.
Claims21
-21. (canceled)
An apparatus comprising:
- a memory array comprising:
- a main portion;
- and
- a redundant portion;
- and
- refresh circuitry configured to, responsive to a determination of a hammering event, refresh at least a portion of the redundant portion.
3 more elements
An apparatus, comprising:
- a memory array, wherein the memory array comprises:
- a main portion;
- and
- a redundant portion;
- refresh circuitry coupled to the memory array to:
- refresh at least a portion of the redundant portion in response to a determination of a hammering event;
- and
- refrain from refreshing a portion of the main portion in response to the determination of the hammering event;
- wherein the portion of the main portion is a first group of memory cells adjacent to a second group of memory cells of the main portion.
6 more elements
A method, comprising:
- accessing a first group of redundant memory cells of a memory array at a particular rate;
- and
- refreshing, using hammer refresh circuitry, the first group of redundant memory cells and a second group of redundant memory cells in response to the first group being accessed at the particular rate, wherein the refreshing includes not refreshing at least a third group of redundant memory cells.
Dependencies are inferred from the claim text.