G - Physics – 01 – R
Patent
G - Physics
01
R
324/58.1
G01R 31/28 (2006.01) G01R 31/305 (2006.01)
Patent
CA 1268214
ABSTRACT OF THE DISCLOSURE Method and apparatus for analyzing errors or failures in integrated circits wherein the integrated circuit is displayed on the picture screen of a work station (AS) and the circuit is excited with a test signal such that at least one measuring location is selected on a malfunction path and an actual signal tappable at this measuring location is compared to a rated signal and wherein the fault location is identified from the comparison results at the measuring locations. The object is to execute a method using an electron beam testing apparatus (EMG) such that the simplest possible measured data transfer occurs. For this purpose the selection of the measuring location on the malfunctioning path proceeds such that a portion (23) of the layout of the integrated circuit corresponding to the measuring location is displayed on the picture screen of the work station and the measuring location is marked by a cursor (24) and position signals depending on the position of the cursor (24) are supplied to the electron beam measuring apparatus for aligning the electron beam (2) to the measuring location and such that the electron beam testing apparatus is utilized for the identification of the actual signal.
483969
Wolfgang Eckhard
Zibert Klaus
Fetherstonhaugh & Co.
Ict Integrated Circuit Testing Gesellschaft Fur Halbleiterprufte
Wolfgang Eckhard
LandOfFree
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