Method for performing block management, and associated memory device and controller thereof
US8738876B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 12, 2011 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Jul 29, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7211
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for performing block management is provided, where the method is applied to a controller of a Flash memory that includes a plurality of blocks. The method includes: selecting a target block having a least erase count from at least one portion of blocks in a data region of the Flash memory, and utilizing the target block as a block to be erased, wherein serial numbers of the at least one portion of blocks correspond to order of last update of the at least one portion of blocks, respectively; and determining whether to move/copy valid data of the target block into a heavily worn block or a lightly worn block according to a serial number of the target block, where the degree of wear of the heavily worn block is higher than that of the lightly worn block. An associated memory device and a controller thereof are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.