Memory device
US11830558B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2022 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | May 11, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/1431
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A memory device includes a first memory area including a first memory cell array having a plurality of first memory cells and a first peripheral circuit disposed below the first memory cell array; a second memory area including a second memory cell array having a plurality of second memory cells and a second peripheral circuit disposed below the second memory cell array; and a pad area including a power wiring. The first and second memory areas respectively include first and second local lockout circuits separately determining whether to lock out of each of the memory areas. The first and second memory areas are included in a single semiconductor chip to share the pad area, and the first and second memory areas operate individually. Accordingly, in the memory device, unnecessary data loss may be reduced by selectively stopping an operation of only a memory area requiring recovery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.