Method for detaching sectors in a flash EEPROM memory array

Details Method for detaching sectors in a flash EEPROM memory array Method for detaching sectors in a flash EEPROM memory array

1992-10-30

1994-10-18

Nguyen, Viet Q.

Static information storage and retrieval

Read/write circuit

Erase

365200, 371 101, 371 102, 371 111, 371 211, G11C 2900, G11C 1134

Patent

active

053574753

ABSTRACT:
A process for releasing sectors of a flash EEPROM memory array which includes a plurality of individually erasable blocks and stores sectors of data in such blocks with a header providing a logical sector number, an indication of validity of data stored, and an indication of whether data is stored with the header. The process includes the steps of finding the header of a sector with data to be released, setting the indication of validity of the data stored to indicate that the data is invalid, and writing a new header for the sector to a new position in the array without data and with an indication that data is not attached.

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Optimal Solid State Disk Architecture for Portable Computers, Dan Auclair, pp., 811-815, Proceedings of Silicon Valley P.C. Design Conference, Jul. 9, 1991.

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