Patent ID: 6697281
Filing Date: 2004-02-24
Classification: G11C

Abstract:
A flash electrically-erasable, programmable read-only memory (EEPROM), comprising:a plurality of groups of memory cells configured to store information; one or more group select lines coupled to selectively provide a group voltage; a plurality of first select transistors coupled between said one or more group select lines and said plurality of groups of memory cells; a plurality of second select transistors coupled between said plurality of first select transistors, said plurality of groups of memory cells, and a source connection, wherein each of said plurality of second select transistors is associated with a corresponding one of said plurality of groups of memory cell, and wherein one of said plurality of second select transistors has a first terminal coupled to said source connection and a second terminal coupled to a plurality of control gates associated with a plurality of memory cells of one group of said plurality of groups of memory cells; a plurality of first word lines configured to control said plurality of first select transistors; and a plurality of second word lines configured to control said plurality of second select transistors.