Semiconductor memory device, page buffer resource assigning...

Details Semiconductor memory device, page buffer resource assigning... Semiconductor memory device, page buffer resource assigning...

2008-07-29

2008-07-29

Nguyen, Tan T. (Department: 2827)

Static information storage and retrieval

Floating gate

Particular connection

C365S185050, C365S189170, C257S324000

Reexamination Certificate

active

10848324

ABSTRACT:
A semiconductor memory device includes a page buffer circuit and an arrangement of memory elements each including: a gate electrode provided on a semiconductor layer with an intervening gate insulating film; a channel region provided beneath the gate electrode; a diffusion area provided on both sides of the channel region, having an opposite polarity to the channel region; and a memory functioning member provided on both sides of the gate electrodes, having a function of storing electric charge. The page buffer circuit provides a common resource shared between a memory array controller and a user. The page buffer circuit has two planes containing random access memory arrays. The page buffer circuit also includes a mode control section to facilitate access to the planes over a main bus in user mode and access to the planes by the memory array controller in memory control mode.

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