17973726. SELECTABLE ROW HAMMER MITIGATION simplified abstract (Micron Technology, Inc.)

SELECTABLE ROW HAMMER MITIGATION

Organization Name

Micron Technology, Inc.

Inventor(s)

Edmund J. Gieske of Cedar Park TX (US)

Sujeet Ayyapureddi of Boise ID (US)

Niccolò Izzo of Vignate (IT)

SELECTABLE ROW HAMMER MITIGATION - A simplified explanation of the abstract

This abstract first appeared for US patent application 17973726 titled 'SELECTABLE ROW HAMMER MITIGATION

Simplified Explanation

An apparatus is described in this patent application that includes multiple memory devices and a controller connected to some of these memory devices. The controller has the ability to determine if the number of row activations directed to a specific row of memory devices exceeds a row hammer criterion. If this criterion is met, the controller can select a row hammer mitigation response from a variety of available responses and initiate the selected response.

• The apparatus includes multiple memory devices and a controller.
• The controller determines if the number of row activations exceeds a row hammer criterion.
• If the criterion is met, the controller selects a row hammer mitigation response.
• The selected response is then initiated by the controller.

Potential applications of this technology:

• Data centers and server farms that rely heavily on memory devices can benefit from this technology to prevent row hammer issues.
• Mobile devices with limited memory capacity can use this technology to optimize memory usage and prevent performance degradation.

Problems solved by this technology:

• Row hammer is a phenomenon where repeated accessing of memory rows can cause bit flips in adjacent rows, leading to data corruption and system instability. This technology helps mitigate the effects of row hammer by detecting and responding to excessive row activations.

Benefits of this technology:

• Prevents data corruption and system instability caused by row hammer.
• Optimizes memory usage and improves overall system performance.
• Provides a flexible and customizable approach to mitigating row hammer issues.

Original Abstract Submitted

An apparatus can include a number of memory devices and a controller coupled to one or more of the number of memory devices. The controller can be configured to determine whether a quantity of row activations directed to a row of the memory devices exceeds a row hammer criterion. The controller can be configured to select, responsive to determining that the row hammer criterion is met, a row hammer mitigation response from a plurality of row hammer mitigation responses available for initiation. The controller can be configured to initiate the selected row hammer mitigation response.