Wordline voltage transfer apparatus, systems, and methods

Details Wordline voltage transfer apparatus, systems, and methods Wordline voltage transfer apparatus, systems, and methods

2007-02-05

2010-02-02

Luu, Pho M. (Department: 2824)

Static information storage and retrieval

Addressing

Particular decoder or driver circuit

C365S189090, C365S189110, C365S203000

Reexamination Certificate

active

07656740

ABSTRACT:
The apparatus and systems comprise a plurality of memory cells coupled to a local wordline, and a wordline drive circuit that includes a regulator coupled to a plurality of pass transistors and a string driver. The regulator may comprise a regulator transistor having a threshold voltage that is substantially the same as the threshold voltage of the string driver during memory cell program operations. The regulator may comprise a cascode-connected pair of transistors. Methods of manufacturing and operating the apparatus and systems are also described.

REFERENCES:
patent: 5373479 (1994-12-01), Noda
patent: 5726944 (1998-03-01), Pelley et al.
patent: 6337813 (2002-01-01), Marr
patent: 7068543 (2006-06-01), Mihnea et al.
patent: 7120061 (2006-10-01), Daga

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