MITIGATION OF DATA RETENTION DRIFT BY PROGRAMMING NEIGHBORING MEMORY CELLS

摘要

A method includes, in a plurality of memory cells that share a common isolation layer and store in the common isolation layer quantities of electrical charge representative of data values, assigning a first group of the memory cells for data storage, and assigning a second group of the memory cells for protecting the electrical charge stored in the first group from retention drift. Data is stored in the memory cells of the first group. Protective quantities of the electrical charge that protect from the retention drift in the memory cells of the first group are stored in the memory cells of the second group.

主权项

1. An apparatus, comprising:
a plurality of pages, wherein each page of the plurality of pages includes a plurality of memory cells; wherein each memory cell of the plurality of memory cells included in a given page of the plurality of pages shares a common isolation layer; and wherein each memory cell of the plurality of memory cells included in the given page of the plurality of pages is configured to store a quantity of electrical charge representative of a data value; and a processor configured to:
store data in each memory cell of the plurality of memory cells included in a first page of the plurality of pages;store first protective data in memory cells included in a second page of the plurality of pages, wherein the second page is adjacent to the first page; andstore second protective data in memory cells included in a third page of the plurality of pages, wherein the third page is adjacent to the second page.