05297148 is referenced by 524 patents and cites 7 patents.

A system of Flash EEprom memory 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.

Title
Flash eeprom system
Application Number
337566
Publication Number
5297148
Application Date
October 20, 1992
Publication Date
March 22, 1994
Inventor
Sanjay Mehrotra
Milpitas
CA, US
Robert D Norman
San Jose
CA, US
Eliyahou Harari
Los Gatos
CA, US
Agent
Majestic Parsons Siebert & Hsue
Assignee
SunDisk Corporation
CA, US
IPC
G06F 11/00
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