Method and apparatus for measuring on-chip power supply...

Details Method and apparatus for measuring on-chip power supply... Method and apparatus for measuring on-chip power supply...

2005-08-23

2005-08-23

Deb, Anjan (Department: 2858)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

C324S522000, C324S701000, C324S765010

Reexamination Certificate

active

06933729

ABSTRACT:
A test circuit and method for measuring power supply integrity is provided. The circuit may be incorporated on-chip and is small enough to be integrated many times across the surface of the die for measuring integrity parameters at several locations on the chip. The circuit instantaneously measures, e.g., the rail voltage of a power supply, which may be fluctuating at the time of measurement. In addition, the circuit isolates itself from all chip power rails for the duration of the measurement, thereby eliminating any influence of external noise on the measurement. A storage capacitor is charged up to full power rail voltage for powering up a comparator. Then, the comparator is isolated from the power rails and the measurements are taken. Based upon the measurements, certain power supply integrity parameters are quantified including ground bounce and power droop.

REFERENCES:
patent: 3629816 (1971-12-01), Gillund
patent: 4278971 (1981-07-01), Yasui et al.
patent: 4807277 (1989-02-01), Perry
patent: 4831325 (1989-05-01), Watson, Jr.
patent: 5045835 (1991-09-01), Masegi et al.
patent: 6424058 (2002-07-01), Frech et al.
patent: 6664798 (2003-12-01), De Jong et al.
patent: 2002/0125897 (2002-09-01), Frech et al.
patent: 2376081 (2002-12-01), None
patent: 2-264874 (1990-10-01), None
patent: 7-239369 (1995-09-01), None

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