J. Semicond. > 2011, Volume 32 > Issue 9 > 095011

SEMICONDUCTOR INTEGRATED CIRCUITS

Hierarchical distribution network for low skew and high variation-tolerant bufferless resonant clocking

Xu Yi, Chen Shuming and Liu Xiangyuan

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DOI: 10.1088/1674-4926/32/9/095011

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Abstract: We propose a hierarchical interconnection network with two-phase bufferless resonant clock distribution, which mixes the advantages of mesh and tree architectures. The problems of skew reduction and variation-tolerance in the mixed interconnection network are studied through a pipelined multiplier under a TSMC 65 nm standard CMOS process. The post-simulation results show that the hierarchical architecture reduces more than 75% and 65% of clock skew compared with pure mesh and pure H-tree networks, respectively. The maximum skew in the proposed clock distribution is less than 7 ps under imbalanced loading and PVT variations, which is no more than 1% of the clock cycle of about 760 ps.

Key words: resonant clockclock distribution networkclock skewPVT variation

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    Received: 20 August 2015 Revised: 10 May 2011 Online: Published: 01 September 2011

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      Xu Yi, Chen Shuming, Liu Xiangyuan. Hierarchical distribution network for low skew and high variation-tolerant bufferless resonant clocking[J]. Journal of Semiconductors, 2011, 32(9): 095011. doi: 10.1088/1674-4926/32/9/095011 ****Xu Y, Chen S M, Liu X Y. Hierarchical distribution network for low skew and high variation-tolerant bufferless resonant clocking[J]. J. Semicond., 2011, 32(9): 095011. doi: 10.1088/1674-4926/32/9/095011.
      Citation:
      Xu Yi, Chen Shuming, Liu Xiangyuan. Hierarchical distribution network for low skew and high variation-tolerant bufferless resonant clocking[J]. Journal of Semiconductors, 2011, 32(9): 095011. doi: 10.1088/1674-4926/32/9/095011 ****
      Xu Y, Chen S M, Liu X Y. Hierarchical distribution network for low skew and high variation-tolerant bufferless resonant clocking[J]. J. Semicond., 2011, 32(9): 095011. doi: 10.1088/1674-4926/32/9/095011.

      Hierarchical distribution network for low skew and high variation-tolerant bufferless resonant clocking

      DOI: 10.1088/1674-4926/32/9/095011
      Funds:

      The National Natural Science Foundation of China (General Program, Key Program, Major Rsearch Plan)e

      • Received Date: 2015-08-20
      • Accepted Date: 2011-03-08
      • Revised Date: 2011-05-10
      • Published Date: 2011-08-31

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