APPARATUSES AND METHODS FOR ROW HAMMER COUNTER INITIALIZATION

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APPARATUSES AND METHODS FOR ROW HAMMER COUNTER INITIALIZATION

This abstract first appeared for US patent application 18756919 titled 'APPARATUSES AND METHODS FOR ROW HAMMER COUNTER INITIALIZATION

Original Abstract Submitted

Embodiments of the disclosure are drawn to apparatuses and methods for row hammer counter resets. Repeated access to an aggressor word line may cause increased data degradation in nearby victim word lines of the memory. The access count value of a given word line may be stored in counter memory cells positioned along that word line. The count values may be randomly or pseudo-randomly initialized. In some examples, a memory device may utilize residual charges that are present on the counter cells during start-up to initialize the counter memory cells. In some other examples, a memory device may utilize threshold voltage compensation (VtC) settings at start-up to initialize the counter memory cells. In some other examples, a memory device may utilize a combination of the residual charges that are present on the counter cells and VtC settings on start-up to initialize the counter memory cells.