Erping Li

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Rights IEEE Transactions on Very Large Scale Integration (VLSI) Systems © 2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this(More)
We demonstrate near field enhancement generation in silver nanoantenna-superlens systems via numerical modeling. Using near-field interference and global optimization algorithms, we can design nanoantenna-superlens systems with mismatched permittivities, whose performance can match those with matched permittivities. The systems studied here may find broad(More)
The ballistic regime gives the upper limit of an electron device performance. This paper proposes a fast and efficient model for calculating the current–voltage characteristic of a cylindrical nanowire within the framework of the non-equilibrium Green's function. Under certain assumptions, the calculation is simplified to a one-dimensional problem and the(More)
However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and(More)
  • Yaojiang Zhang, Erping Li, Xianke, Gao, Arun Reddy Chada, Jun Fan
  • 2009
— Finite difference method is used to calculate the via-plate capacitances for vias with pad. Due to the symmetric structure, the solving domain is reduced to a rectangular ρ − z region. Boundary conditions along the region are discussed. Both barrel-plate and pad-plate capacitances are studied with various geometric parameters. The results could be used as(More)
Compared with conventional radio frequency (RF) shielding methods in which the conductive coating material encloses the circuits design and the leakage problem occurs due to the gap in such conductive material, non-contact RF shielding at a distance is very promising but still impossible to achieve so far. In this paper, a multi-folded transformation optics(More)
We have systematically investigated the wideband slow light in two-dimensional material graphene, revealing that graphene exhibits much larger slow light capability than other materials. The slow light performances including material dispersion, bandwidth, dynamic control ability, delay-bandwidth product, propagation loss, and group-velocity dispersion are(More)
  • J G Su, H M Hsu, S C Wong, C Y Chang, T Y Huang, Xiaomeng Shi +5 others
  • 2005
ACKNOWLEDGMENTS The authors would like to thank the National Chip Implementation Center (CIC) for technical support. ABSTRACT: A modified model for RF interconnect bends on lossy substrate in CMOS technology is presented. The model parameters are extracted directly from the on-wafer S-parameter measurements. The accuracy is verified up to 20 GHz by the(More)
Various structures of on-wafer interconnect for CMOS RFICs fabricated by using 0.18um CMOS are investigated experimentally. The measured S-parameters in terms of the dimensions and frequencies are presented in the paper. Frequency dependence elements of interconnect is extracted from the measurement. A scalable physical model is derived and quantified using(More)