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Built-in current sensor for IDDQ test
Proceedings. 2004 IEEE International Workshop on Current and Defect Based Testing (IEEE Cat. No.04EX1004)
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A practical Built-in Current Sensor (BICS) design is described in this paper. This sensor system is able to monitor the IDDQ at a resolution level of 10 µA. This system can translate the current level into a digital signal, with scan chain readout. There is no system performance degradation for this sensor and its power dissipation is kept at a very low level. With the help of a self-calibration circuit, the sensor can maintain its accuracy and achieve a clock rate of over 1 GHz, for a measurement time of a few milliseconds.
doi:10.1109/dbt.2004.1408945
fatcat:v6eidmgiqfbuhaxtvdmlbttwxm