Simplified high capacity die and block management
US11561713B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2021 |
| Grant date | Jan 24, 2023 |
| Priority date | — |
| Expiry date | May 27, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7208
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Aspects of a storage device including a memory and a controller are provided which simplify controller management of logical and physical meta-dies and meta-blocks by allowing a logical meta-die to be mapped to multiple physical meta-dies. The memory includes first dies grouped in a first physical meta-die and second dies grouped in a second physical meta-die. The physical meta-dies each include physical meta-blocks. The controller maps a logical meta-die to the first physical meta-die and the second physical meta-die. The controller may also map logical meta-blocks of the logical meta-die to the physical meta-blocks. For instance, the controller may associate a first logical metablock of the logical meta-die to the first physical meta-die and a second logical metablock of the logical meta-die to the second physical meta-die. As a result, firmware complexity in managing meta-dies and meta-blocks may be reduced compared to one-to-one logical-to-physical meta-die mapping approaches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.