Tracking for read and inverse write back of a group of thyristor-based memory cells
US8441881B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 2011 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | Dec 9, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/39
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Method and integrated circuit for tracking for read and inverse write back of a group of thyristor-based memory cells is described. The method includes: reading the group of memory cells to obtain read data, and writing back opposite data states for the read data to the group of memory cells. The group of memory cells includes data cells and at least one check cell for check data, where the check data indicates polarity of the read data. The integrated circuit includes a grouping of memory cells of an array of memory cells including data cells and at least one check cell, and sense amplifiers. The at least one check cell is to track inversion/non-inversion status of the data cells associated therewith, and the sense amplifiers are coupled to obtain read information from the grouping and to write back data states opposite of those of the read information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.