Analysis of CNT Bundle and its Comparison with Copper for FPGAs Interconnects

Authors: Kureshi Abdul Kadir, Mohd. Hasan

Abstract:

Each new semiconductor technology node brings smaller transistors and wires. Although this makes transistors faster, wires get slower. In nano-scale regime, the standard copper (Cu) interconnect will become a major hurdle for FPGA interconnect due to their high resistivity and electromigration. This paper presents the comprehensive evaluation of mixed CNT bundle interconnects and investigates their prospects as energy efficient and high speed interconnect for future FPGA routing architecture. All HSPICE simulations are carried out at operating frequency of 1GHz and it is found that mixed CNT bundle implemented in FPGAs as interconnect can potentially provide a substantial delay and energy reduction over traditional interconnects at 32nm process technology.

Keywords: CMOS, Copper Interconnect, Mixed CNT Bundle Interconnect, FPGAs.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1070375

References:

[1] G. Lemieux and D. Lewis, Design of Interconnection Networks for Programmable Logic, Kluwer Academic Publishers, 2004
[2] F. Li, Y. Lin, L. He, D. Chen, and J. Cong, "Power Modeling and Characteristics of Field Programmable Gate Arrays," TCAD, vol. 24,
[3] A. Naeemi, R. Sarvari, and J. D. Meindl, "Performance comparison between carbon nanotube and copper interconnects for gigascale integration (GSI)", IEEE Electron Device Letters, vol. 26, pp. 84-86,
[4] A. Naeemi, R. Sarvari, and J. D. Meindl, "Performance comparison between carbon nanotube and copper interconnects for gigascale integration (GSI)," IEEE Electron Device Letters, vol. 26, no. 2, pp. 84- 86, 2005.
[5] N. Srivastava and K. Banerjee, "A comparative scaling analysis of metallic and carbon nanotube interconnections for nanometer scale VLSI technologies," in Proceedings of the 21st International VLSI Multilevel Interconnection Conference (VMIC -04), pp. 393-398, 2004.
[6] A. Raychowdhury and K. Roy, "Modeling of metallic carbonnanotube interconnects for circuit simulations and a comparison with Cu interconnects for scaled technologies," IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, vol. 25, no. 1, pp. 58-65, 2006.
[7] A. Raychowdhury and K. Roy, "A circuit model for carbon nanotube interconnects: comparative study with Cu interconnects for scaled technologies," in Proceedings of IEEE/ACM International Conference on Computer-Aided Design (ICCAD -04), pp. 237-240, 2004.
[8] P. McEuen, M. Fuhrer, and H. Park, "Single-walled carbon nanotube electronics," IEEE Transactions on Nanotechnology, vol. 1, no. 1, pp. 78-85, 2002.
[9] H. J. Li, W. G. Lu, J. J. Li, X. D. Bai, and C. Z. Gu, "Multichannel ballistic transport in multiwall carbon nanotubes," Physical Review Letters, vol. 95, no. 8, Article ID 086601, 4 pages, 2005.
[10] S. Haruehanroengra and W. Wang, "Analyzing conductance of mixed carbon-nanotube bundles for interconnect applications," IEEE Electron Device Letters, vol. 28, no. 8, pp. 756-759, 2007.
[11] M. Nihei, D. Kondo, A. Kawabata, et al., "Low-resistance multi-walled carbon nanotube vias with parallel channel conduction of inner shells," in Proceedings of the IEEE International Interconnect Technology Conference (IITC -05), pp. 234-236, June 2005.
[12] A. Naeemi and J. D. Meindl, "Compact physical models for multiwall carbon-nanotube interconnects," IEEE Electron Device Letters, vol. 27, no. 5, pp. 338-340, 2006.
[13] C. L. Cheung, A. Kurtz, H. Park, and C.M. Lieber, "Diametercontrolled synthesis of carbon nanotubes," Journal of Physical Chemistry B, vol. 106, no. 10, pp. 2429-2433, 2002.
[14] A. Nieuwoudt and Y. Massoud, "On the optimal design, performance and reliability of future carbon nanotub-based interconnect solutions," IEEE Transactions on Electron Devices, vol. 55, no. 8, pp. 2097-2110, 2008.
[15] International Technology Roadmap for Semiconductors, 2005.
[16] B. Q. Wei, R. Vajtai, and P. M. Ajayan, "Reliability and current carrying capacity of carbon nanotubes," Applied Physics Letters, vol. 79, no. 8, pp. 1172-1174, 2001.
[17] http://www.nanohub.org/tools.
[18] http://www.eas.asu.edu/ptm/.
[19] N. Srivastava, R. V. Joshi, and K. Banerjee, "Carbon nanotube interconnects: implications for performance, power dissipation and thermal management," in Proceedings of IEEE International Electron Devices Meeting (IEDM -05), pp. 249- 252,Washington, DC, USA, 2005.
[20] H. Li, et al., "Modeling of carbon nanotube interconnects and comparative analysis with Cu interconnects," in Proceedings of the Asia-Pacific Microwave Conference (APMC -06), 2006.
[21] Xilinx Corporation, Virtex-II 1.5V Field Programmable Gate Arrays DS031-1, Version 2.5, April 2001.
[22] L. Shang. A. Kaviani. K. Balhala. "Dynamic Power Consumption in Virtex-II FPGA Family", Proe. of IEEE Symp. On FPGAs, pp. 167-172 2002.
[23] S. N. Vijaykrishnan, A. Neuwodt, Y. Masood, "Predicting the performance and reliability of future FPGAs routing architectures with CNT interconnects"IET Circuit and device system 3(2) pp. 64-75,2009