Electronic digital logic circuitry – Interface – Current driving
Reexamination Certificate
2007-10-09
2007-10-09
Le, Don (Department: 2819)
Electronic digital logic circuitry
Interface
Current driving
C326S087000, C326S026000
Reexamination Certificate
active
11556056
ABSTRACT:
The present invention relates to an output driver circuit for a semiconductor memory device, in particular, a memory device using a DDR II concept or a concept similar thereto, which can reduce a variation in the slew rate of an output driver thereof between maximum and minimum values, while satisfying requirements of characteristics associated with slew rate.
REFERENCES:
patent: 5231311 (1993-07-01), Ferry et al.
patent: 5877647 (1999-03-01), Vajapey et al.
patent: 5898321 (1999-04-01), Ilkbahar et al.
patent: 6265892 (2001-07-01), Jou et al.
patent: 6307414 (2001-10-01), Hoff
patent: 6445212 (2002-09-01), Wey et al.
patent: 6452428 (2002-09-01), Mooney et al.
patent: 6512401 (2003-01-01), Clark et al.
patent: 6657469 (2003-12-01), Li
patent: 6710617 (2004-03-01), Humphrey
patent: 6744287 (2004-06-01), Kennedy et al.
patent: 6970015 (2005-11-01), Chan et al.
patent: 2002/0043997 (2002-04-01), Stark et al.
patent: 2002/0190762 (2002-12-01), Mooney et al.
patent: 2004/0239391 (2004-12-01), Culler
patent: 2006/0022713 (2006-02-01), Tokuhiro et al.
Hynix / Semiconductor Inc.
Le Don
Marshall & Gerstein & Borun LLP
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