Precise writing of multi-level weights to memory devices for compute-in-memory
US12009026B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Dec 10, 2020 |
| Grant date | Jun 11, 2024 |
| Priority date | — |
| Expiry date | Oct 9, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2013/0092
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for precision writing of weight values to a memory capable of storing multiple levels in each cell are disclosed. Embodiments include logic to compare an electrical parameter read from a memory cell with a base reference and an interval reference, and stop writing once the electrical parameter is between the base reference and the base plus the interval reference. The interval may be determined using a greater number of levels than the number of stored levels, to prevent possible overlap of read values of the electrical parameter due to memory device variations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.