Surfliner: A Distortionless Electrical Signaling Scheme for Speed of Light On-Chip Communications

  • Authors:
  • Hongyu Chen;Rui Shi;Chung-Kuan Cheng;David M. Harris

  • Affiliations:
  • University of California, San Diego 9500 Gilman Dr., La Jolla, CA;University of California, San Diego 9500 Gilman Dr., La Jolla, CA;University of California, San Diego 9500 Gilman Dr., La Jolla, CA;Harvey Mudd College, Claremont, CA 91711

  • Venue:
  • ICCD '05 Proceedings of the 2005 International Conference on Computer Design
  • Year:
  • 2005

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Abstract

We present a novel scheme to implement distortion- less transmission lines for on-chap edectracal signaling. By introducing intentional leakage conductance between the wires of a differential pair, the distortionless trans- mission line eliminates dispersion caused b y the resis- tive nature of on-ch ip wires and achieves speed of light transmission. We show that it is feasible to construct distortionless transmission line with conventional sili- con process. Simulation results show that using 65nm technology, the proposed scheme can achieve 15Gbits/s bandwidth over a 20mm on-chip serial link without any equalization. This approach offers a six times improve- ment in delay and 85% reduction in power consumption over a conventional RC wire with repeated buffers.