Method and apparatus for rapid measurements of electrical signal

Details Method and apparatus for rapid measurements of electrical signal Method and apparatus for rapid measurements of electrical signal

1984-07-19

1988-01-26

Church, Craig E.

Radiant energy

Inspection of solids or liquids by charged particles

Electron probe type

324158D, 324158R, 250307, G01R 3126

Patent

active

047218550

ABSTRACT:
A method for measuring electrical signals according to a sampling principle with the assistance of an electron probe, whereby the signal is respectively repeatedly sampled in succession at different phase points, enables a fast registration of an electrical signal at a circuit node of an integrated circuit and simultaneously permits registration when at least one noise signal appears between two clock edges of a basic pulse rate of the integrated circuit. Between two successive phase points at which the signal is repeatedly sampled in succession for potential measurement, only a check is executed at phase points by sampling as to whether a noise signal exists in this intermediate region.

REFERENCES:
patent: 4220854 (1980-09-01), Feuerbaum
patent: 4227679 (1981-07-01), Feuerbaum
patent: 4387304 (1983-06-01), Younkin
patent: 4477775 (1984-10-01), Fazekas

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