Ferroelectric non-volatile logic elements
US6650158B2 · kind B2 · utility
14Cited by
22References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 12, 2002 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Feb 12, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/45
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Various logic elements such as SR flip-flops, JK flip-flops, D-type flip-flops, master-slave flip-flops, parallel and serial shift registers, and the like are converted into non-volatile logic elements capable of retaining a current output logic state even though external power is removed or interrupted through the strategic addition of ferroelectric capacitors and supporting circuitry. In each case, the building blocks of a cross-coupled sense amplifier are identified within the logic element and the basic cell is modified and/or optimized for sensing performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.