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Reduced Voltage Test Can be Faster!

Reduced Voltage Test Can be Faster!. Vishwani D. Agrawal vagrawal@eng.auburn.edu. Effects of Reducing Supply Voltage. Critical path slows down. Power reduces as V 2 . Test produces more than functional activity; consumes more power that the circuit is designed for.

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Reduced Voltage Test Can be Faster!

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  1. Reduced Voltage Test Can be Faster! Vishwani D. Agrawal vagrawal@eng.auburn.edu ITC '12: Elevator Talk

  2. Effects of Reducing Supply Voltage • Critical path slows down. • Power reduces as V2. • Test produces more than functional activity; consumes more power that the circuit is designed for. • Test clock is slower due to power constrain. ITC '12: Elevator Talk

  3. Power and Frequency vs. Voltage Structure constrained test Power constrained test Max. clock frequency (structure constrained) Peak power/cycle during test PMAXfunc Vtest Nominal voltage Voltage VDD ITC '12: Elevator Talk

  4. Reduced Voltage Test Results P. Venkataramani and V. D. Agrawal, “Reducing Test Time of Power Constrained Test by Optimal Selection of Supply Voltage,” Proc. 26th International Conf. VLSI Design, January 2013. ITC '12: Elevator Talk

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