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US 4531203

How Flash Memory Cells Use an Erase Gate to Clear Data

This 1985 patent describes the foundational structure of flash memory, introducing an 'erase gate' that allows data to be electrically wiped from a memory cell.

Statusexpired

Granted1985

Expires2001

Claims5

Forward citations27

Prior art2

AssigneeTokyo Shibaura Electric Co Ltd

InventorsHisakazu Iizuka, Fujio Masuoka

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