Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2006-11-29
2008-10-21
Mis, David (Department: 2817)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S548000, C365S226000
Reexamination Certificate
active
07439797
ABSTRACT:
A semiconductor memory device includes a first pump clock generator configured to generate a first pump clock signal based on a power supply voltage. The device also includes a first charge pump configured to generate a first pump output voltage in response to the first pump clock signal. The device also includes a second pump clock generator configured to generate a second pump clock signal based on the first pump output voltage. The device also includes a second charge pump configured to generate a second pump output voltage in response to the second pump clock signal. The device also includes a switching unit configured to selectively connect the first charge pump to the second charge pump.
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Byeon Dae-Seok
Chae Dong-Hyuk
Mis David
Samsung Electronics Co,. Ltd.
Volentine & Whitt PLLC
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