Apparatuses and methods for bi-directional access of crosspoint arrays
US10847220B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 18, 2019 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | Oct 18, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2213/76
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The disclosed technology generally relates to apparatuses and methods of operating the same, and more particularly to cross point memory arrays and methods of accessing memory cells in a cross point memory array. In one aspect, an apparatus comprises a memory array. The apparatus further comprises a memory controller configured to cause an access operation, where the access operation includes application of a first bias across a memory cell of the memory array for a selection phase of the access operation and application of a second bias, lower in magnitude than the first bias, across the memory cell for an access phase of the access operation. The memory controller is further configured to cause a direction of current flowing through the memory cell to be reversed between the selection phase and the access phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.