Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2008-12-29
2010-10-26
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S535000, C327S537000, C363S059000
Reexamination Certificate
active
07821329
ABSTRACT:
A pumping voltage generating circuit in a semiconductor memory apparatus includes a voltage supplying unit configured to supply an external power supply voltage to a first node in response to a first transfer signal, a node control unit configured to couple the first node to a second node in response to a second transfer signal and to couple the second node to an output node in response to a third transfer signal, a first pumping unit configured to increase a voltage level on the first node through a pumping operation that is performed in response to a first oscillation signal and to control one of an amount of voltage increment and decrement on the first node in response to a first control signal, and a second pumping unit configured to increase a voltage level on the second node through a pumping operation that is performed in response to a second oscillation signal and to control one of an amount of voltage increment and decrement on the second node in response to a second control signal.
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patent: 2003/0011420 (2003-01-01), Kawai et al.
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patent: 2007/0241808 (2007-10-01), Choi
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Baker & McKenzie LLP
Cole Brandon S
Donovan Lincoln
Hynix / Semiconductor Inc.
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