Back to results
US 12,216,915 B2Granted
Adaptive read disturb scan
AssigneeMicron Technology, Inc.
InventorsAnimesh R. Chowdhury, Kishore K. Muchherla, Nicola Ciocchini, Akira Goda, Jung Sheng Hoei, Niccolo′ Righetti, Jonathan S. Parry
Life of this patent
Estimating the term…
Abstract
Apparatuses, systems, and methods for adapting a read disturb scan. One example method can include determining a delay between a first read command and a second read command, incrementing a read count based on the determined delay between the first read command and the second read command, and adapting a read disturb scan rate based on the incremented read count.
Claims19
A method, comprising:
- determining a delay between a first read command and a second read command;
- incrementing a read count based on the determined delay between the first read command and the second read command;
- and
- adapting a read disturb scan rate based on the incremented read count.
1 more element
An apparatus, comprising:
- a memory;
- and
- a processor configured to:
- receive a number of read commands;
- increment a read count by a first value in response to determining a first read command of the number of read commands in a block address is succeeded by a second read command of the number of read commands in the block address within a particular period of time;
- increment the read count by a second value in response to determining the first read command in the block address is succeeded by the second read command in the block address after the particular period of time;
- and
- increment the read count by a third value in response to determining the first read command in the block address is succeeded by a program command in the block address within the particular period of time.
5 more elements
A system, comprising:
- a host;
- and
- a memory coupled to the host, wherein the memory comprises:
- an array of memory cells;
- and
- a processor coupled to the array of memory cells, wherein the processor is configured to:
- increment a read count by a first value in response to receiving a number of sequential read commands from the host;
- increment the read count by a second value in response to receiving a random read command from the host;
- and
- initiate a read disturb scan in response to the incremented read count reaching a threshold.
7 more elements
Dependencies are inferred from the claim text.