Reference generation for voltage sensing in a resistive memory
US10984846B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2019 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | Jul 18, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2013/0054
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A sense amplifier circuit includes a reference path, a cell path, and a comparator circuit. The reference path includes a first current load device and a reference comparison node in which the reference path is coupled to a cell reference circuit during a read, wherein the first current load device includes a control input for controlling a current of the reference path. The cell path includes a second current load device and a cell comparison node in which the cell path is coupled to a memory cell during a read, wherein the second current load device includes a control input for controlling a current of the cell path. The comparator circuit indicates a data value being stored in the memory cell based on a comparison of voltages at the reference and cell comparison nodes. Different signals are provided to the control inputs of the first and second current load devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.