Chip level power supply partitioning for IDDQ testing using built-in current sensors Conference Paper uri icon

abstract

  • © 2003 IEEE. The International Technology Roadmap for Semiconductors projects that IDDQ levels will rise rapidly with each technology node. In addition, manufacturing variations in the IDDQ level will be difficult to control. The combination will make it increasingly difficult to distinguish defect-free from defective chips via IDDQ tests. Built-in current sensors (BICSs) have been proposed to increase test resolution by virtually partitioning the supply mesh, so that each partition has a relatively small defect-free IDDQ level. In the future such a scheme would require 100 000 or more BICSs and thus the partitioning task needs to be automated. This paper presents a practical methodology to do this power supply partitioning.

author list (cited authors)

  • Prasad, A., & Walker, D.

publication date

  • January 2003