Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2007-03-14
2010-06-15
Le, Dinh T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S538000, C327S540000, C323S313000
Reexamination Certificate
active
07737768
ABSTRACT:
An internal voltage generator of a semiconductor memory device generates an internal voltage sensitive to a change in a temperature. The internal voltage generator includes a reference voltage generator, an internal voltage detecting unit and an internal voltage pumping unit. The reference voltage generator generates a reference voltage which is inversely proportional to the change in the temperature. The internal voltage detecting unit detects a difference between the reference voltage and the internal voltage to output a pumping control signal according to a detecting result, wherein the pumping control signal has an identical temperature characteristic as the reference voltage. The internal voltage pumping unit generates the internal voltage by a pumping operation in response to the pumping control signal.
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Korean Office Action issued in corresponding Korean Patent Application No. KR 10-2006-0059615, issued on Nov. 30, 2007.
Hynix / Semiconductor Inc.
IP & T Law Firm PLC
Le Dinh T.
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