Semiconductor memory device having split word line driver...

Details Semiconductor memory device having split word line driver... Semiconductor memory device having split word line driver...

2007-11-06

2010-06-01

Luu, Pho M (Department: 2824)

Static information storage and retrieval

Addressing

Particular decoder or driver circuit

C365S230030, C365S207000, C365S208000, C365S051000

Reexamination Certificate

active

07729195

ABSTRACT:
Semiconductor memory devices having hierarchical word line structures are provided. A block of sub-word line driver circuits (SWDB) are disposed between a first block of memory and a second block of memory. A SWDB includes a plurality of sub-wordline driver (SWD) circuits arranged in a plurality of SWD columns each having four SWD circuits extending in a first direction between the first and second blocks of memory. Two adjacent SWD columns include a SWD group for driving a plurality of sub-word lines extending from the SWD group along the first direction into the first and second blocks of memory.

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