AUTOMATIC BAD SECTOR REMAPPING FEATURE

Brand	Owner	Address	Description
DEFECT FREE INTERFACE	PLUS DEVELOPMENT CORPORATION	1778 MCCARTHY BOULEVARD MILPITAS CA 95035	AUTOMATIC BAD SECTOR REMAPPING FEATURE OF A FIXED DISK DRIVE USING SPARE SECTORS;INTERFACE;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A system of Flash EEprom chips with controlling circuits serves as non-volatile memory such as that provided by magnetic disk drives. Improvements include selective multiple sector erase, in which any combinations of Flash sectors may be erased together. Selective sectors among the selected combination may also be de-selected during the erase operation. Another improvement is the ability to remap and replace defective cells with substitute cells. The remapping is performed automatically as soon as a defective cell is detected. When the number of defects in a Flash sector becomes large, the whole sector is remapped. Yet another improvement is the use of a write cache to reduce the number of writes to the Flash EEprom memory, thereby minimizing the stress to the device from undergoing too many write/erase cycling.