Location of Repository

8A-2 Device-Parameter Estimation with On-chip Variation Sensors Considering Random Variability

By Ken-ichi Shinkai and Masanori Hashimoto

Abstract

Abstract—Device-parameter monitoring sensors inside a chip are gaining its importance as the post-fabrication tuning is becoming of a practical use. In estimation of variational parameters using on-chip sensors, it is often assumed that the outputs of variation sensors are not affected by random variations. However, random variations can deteriorate the accuracy of the estimation result. In this paper, we propose a device-parameter estimation method with on-chip variation sensors explicitly considering random variability. The proposed method derives the global variation parameters and the standard deviation of the random variability using the maximum likelihood estimation. We experimentally verified that the proposed method can accurately estimate variations, whereas the estimation result deteriorates when neglecting random variations. We also demonstrate an application result of the proposed method to test chips fabricated in a 65-nm process technology. Index Terms—variation sensor, device-parameter extraction, process variability, die-to-die variation, within-die variatio

Year: 2011
OAI identifier: oai:CiteSeerX.psu:10.1.1.188.2030
Provided by: CiteSeerX
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://citeseerx.ist.psu.edu/v... (external link)
  • http://www-ise2.ist.osaka-u.ac... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.