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Read window budget based dynamic program step characteristic adjustment

  • US 10,706,935 B2
  • Filed: 12/10/2018
  • Issued: 07/07/2020
  • Est. Priority Date: 12/10/2018
  • Status: Active Grant
First Claim
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1. A system, comprising:

  • a memory component including a group of memory cells; and

    a processing device coupled to the memory component and configured to;

    determine a read window budget (RWB) corresponding to the group of memory cells, wherein the RWB is a cumulative value of a number of distances between adjacent threshold voltage distributions associated with the group of memory cells at a particular bit error rate (BER);

    compare the determined RWB to a target RWB; and

    in response to the determined RWB being different than the target RWB, adjust one or more program step characteristic to adjust the determined RWB toward the target RWB wherein the one or more program step characteristics comprises a step size that corresponds to a voltage difference between consecutive programming signals of a series of programming signals applied to the group of memory cells to program the group of memory cells to a particular data state.

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