Patent ID: 7370257
Filing Date: 2008-05-06
Classification: G01R

Abstract:
1. A system comprising: an integrated circuit comprising: a plurality of process test circuits; at least two data collection circuits; and a control circuit capable of switching one or more of said plurality of process test circuits to connect to one of said at least two data collection circuits; a test device adapted to connect to at least one of said plurality of process test circuits, set said control circuit to one of said at least two data collection circuits, send signals through said process test circuits, and collect a plurality of sets of data using said at least two data collection circuits for more than one combination of said process test circuits and said at least two data collection circuits; a test analyzer adapted to compare said plurality of sets of data, determine that a failure exists, and isolate said failure to one or more of said plurality of process test circuits, said at least two data collection circuits, or said control circuit.