17852221. REFRESH DETERMINATION USING MEMORY CELL PATTERNS simplified abstract (MICRON TECHNOLOGY, INC.)

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REFRESH DETERMINATION USING MEMORY CELL PATTERNS

Organization Name

MICRON TECHNOLOGY, INC.

Inventor(s)

Umberto Di Vincenzo of Capriate San Gervasio (BG) (IT)

Ferdinando Bedeschi of Biassono (MB) (IT)

Christian Marc Benoit Caillat of Boise ID (US)

REFRESH DETERMINATION USING MEMORY CELL PATTERNS - A simplified explanation of the abstract

This abstract first appeared for US patent application 17852221 titled 'REFRESH DETERMINATION USING MEMORY CELL PATTERNS

Simplified Explanation

The patent application describes a system that includes a memory array with pattern cells and data cells. The pattern cells can only store a first logic state, while the data cells can store either the first logic state or a second logic state. The system also includes bias circuitry to apply voltages to the pattern cells and data cells, sensing circuitry to read the pattern cells, and a controller to control the operations.

  • The pattern cells in the memory array can only store a first logic state.
  • The data cells in the memory array can store either the first logic state or a second logic state.
  • Bias circuitry is used to apply voltages to the pattern cells and data cells.
  • Sensing circuitry is used to read the pattern cells.
  • The controller is responsible for applying voltages to the pattern cells, determining which pattern cells switch, refreshing a codeword based on the switched pattern cells, and applying the refresh to the codeword.

Potential Applications

  • This technology can be used in various memory systems, such as solid-state drives (SSDs) or computer memory modules.
  • It can be applied in data storage devices where efficient memory management and error correction are crucial.

Problems Solved

  • The system solves the problem of maintaining the integrity of data stored in memory cells.
  • It addresses the issue of data corruption or loss due to the degradation of memory cells over time.

Benefits

  • The system allows for efficient refreshing of codewords based on the switching of pattern cells.
  • It ensures the reliability and accuracy of stored data by refreshing the codewords as needed.
  • The technology can extend the lifespan of memory cells and improve the overall performance of memory systems.


Original Abstract Submitted

A system includes a memory array having pattern cells and data cells. The pattern cells are configured to store only a first logic state. The data cells are configured to store the first logic state or a second logic state. Bias circuitry is configured to apply voltages to the pattern cells and data cells. Sensing circuitry is configured to read the pattern cells. A controller is configured to apply, using the bias circuitry, first voltages to the pattern cells; determine, using the sensing circuitry, that at least a portion of the pattern cells switch; determine, based on the portion of the pattern cells that switch, to refresh a codeword; and apply, using the bias circuitry, the refresh of the codeword.

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