Integrated test-architecture optimization and thermal-aware test scheduling for 3-D SoCs under pre-bond test-pin-count constraint

  • Authors:
  • Li Jiang;Qiang Xu;Krishnendu Chakrabarty;T. M. Mak

  • Affiliations:
  • CUhk REliable Computing Laboratory, Department of Computer Science and Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong;CUhk REliable Computing Laboratory, Department of Computer Science and Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong and Shenzhen Institutes of Advanced Technology, Chi ...;Department of Electrical and Computer Engineering, Duke University, Durham, NC;Intel Corporation, Santa Clara, CA

  • Venue:
  • IEEE Transactions on Very Large Scale Integration (VLSI) Systems
  • Year:
  • 2012

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Abstract

We propose a layout-driven test-architecture design and optimization technique for core-based system-on-chips (SoCs) that are fabricated with three-dimensional (3-D) integration technology. In contrast to prior work, we consider the pre-bond test-pin-count constraint during optimization since these pins occupy large silicon area that cannot be used in functional mode. In addition, the proposed test-architecture design takes the SoC layout into consideration and facilitates the sharing of test wires between pre-bond tests and post-bond test, which significantly reduces the routing cost for test-access mechanisms. In addition, a thermal-aware test scheduling algorithm is proposed to eliminate hot spots during manufacturing test. Experimental results for the ITC'02 SoC benchmarks circuits demonstrate the effectiveness of the proposed solution.