Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2008-03-11
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
C327S530000, C327S540000, C323S313000
Reexamination Certificate
active
07821330
ABSTRACT:
A circuit and a method for extending the lifetime of a semiconductor chip. The circuit including a voltage reference generator, a voltage switch, a threshold voltage regulator device and a threshold voltage monitor device tunes an automatic internal power supply. The voltage reference generator provides one or more reference voltage levels that are transmitted to the voltage switch. The threshold voltage monitor device monitors the threshold voltage of the device, triggering the voltage switch to select a reference level for use as a voltage reference for the regulator when the threshold voltage of the monitored device exceeds a predetermined value. The regulator then converts the external power supply to an internal supply and holds it at the predetermined reference level.
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Guo Jong-ru
Hsu Louis L.
Wang Ping-Chuan
Yang Zhijian
Donovan Lincoln
Goyal Shikha
International Business Machines - Corporation
Schnurmann H. Daniel
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