Closed loop programming of phase-change memory
US11347999B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2019 |
| Grant date | May 31, 2022 |
| Priority date | — |
| Expiry date | Feb 13, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2213/82
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer implemented method includes updating weight values associated with a plurality of analog synapses in a cross-bar array that implements an artificial neural network by sending a pulse sequence to the analog synapses. Each analog synapse includes a conductance unit, wherein a weight value of the analog synapse is based on a conductance value of the conductance unit. The pulse sequence changes the conductance value. The method further includes comparing the weight values of the analog synapses with target weight values associated with the analog synapses and selecting a set of analog synapses based on the comparison. The method further includes updating the weight values of the selected analog synapses by sending a set of electric pulses of varying durations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.