Static information storage and retrieval – Read/write circuit – Data refresh
Reexamination Certificate
2007-11-27
2007-11-27
Mai, Son L. (Department: 2827)
Static information storage and retrieval
Read/write circuit
Data refresh
C365S189070, C365S230030
Reexamination Certificate
active
11443348
ABSTRACT:
In a semiconductor device, an internally-generated power supply voltage VPP is monitored. If the internally-generated power supply voltage VPP is lower than a lower limit voltage, serial refresh is selected as a double refresh operation mode. In the serial refresh, double refresh for a pair address is inserted in a next refresh cycle. By the serial refresh, decrease of the internally-generated power supply voltage VPP is suppressed.
REFERENCES:
patent: 5305274 (1994-04-01), Proebsting
patent: 6097662 (2000-08-01), Itou
patent: 6850449 (2005-02-01), Takahashi
patent: 7068558 (2006-06-01), Cho
patent: 7072237 (2006-07-01), Morgan et al.
patent: 7139208 (2006-11-01), Arimoto et al.
patent: 7215589 (2007-05-01), Dono et al.
patent: 2004/0076054 (2004-04-01), Takahashi
patent: 2006/0262625 (2006-11-01), Dono et al.
patent: 4-10297 (1992-01-01), None
patent: 8-306184 (1996-11-01), None
patent: 2005-116106 (2005-04-01), None
Dono Chiaki
Koshikawa Yasuji
Elpida Memory Inc.
Mai Son L.
Sughrue Mion Pllc.
LandOfFree
Semiconductor device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semiconductor device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3824604