Pulsed wave interconnect
Pulsed wave interconnect
复制标题
脉冲波互连
DOI：
10.1109/tvlsi.2004.826196
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发表时间：
2004
影响因子：
2.8
通讯作者：
E. C. Kan
中科院分区：
文献类型：
--
作者：
Pingshan Wang;G. Pei;E. C. Kan
脉冲波互连被提出用于全局互连应用。信号由局部化的波包表示，该波包以局部光速沿沿着互连线传播以触发接收器。通过仅对互连线的一部分充电并利用接收器栅极电容的电压加倍特性来降低能量消耗。在0.18-/spl μ/m CMOS工艺的案例研究中，SPICE模拟表明，脉冲波互连可以节省高达50%的能量和/spl sim/30%的芯片面积相比，中继器插入方法。所提出的信号分离结构在不同接收器之间提供合理的隔离。通过对CMOS工艺制造的3.8mm互连线的S参数测量表明，皮科信号的失真和衰减比理论预测的要小得多。脉冲波互连还使单个线路的时分应用能够提高其比特率容量。还提出了使用非线性传输线（NLTL）来克服由色散和频率相关损耗引起的脉冲展宽和衰减。NLTL上的脉冲波可以用体和SOI CMOS技术中可实现的部件来生成、传输、分裂和检测。锥形NLTL可用于脉冲压缩。NLTL边缘锐化能力可能适用于信号上升时间控制。
Pulsed wave interconnect is proposed for global interconnect applications. Signals are represented by localized wave-packets that propagate along the interconnect lines at the local speed of light to trigger the receivers. Energy consumption is reduced through charging up only part of the interconnect lines and using the voltage doubling property of the receiver gate capacitances. In a 0.18-/spl mu/m CMOS technology case study, SPICE simulations show that pulsed wave interconnect can save up to 50% of energy and /spl sim/30% of chip area in comparison with the repeater insertion method. A proposed signal splitting structure provides reasonable isolations between different receivers. Measured S-parameters of 3.8-mm interconnect lines fabricated through CMOS foundry showed that the distortion and attenuation of a pico second signal are much less serious than the theoretical predictions. Pulsed wave interconnect also enables time division application of a single line to boost its bit rate capacity. The use of nonlinear transmission lines (NLTL) is also proposed to overcome pulse broadening and attenuation caused by dispersion and frequency-dependent losses. Pulsed waves on an NLTL may be generated, transmitted, split and detected with components realizable in bulk and SOI CMOS technologies. Tapered NLTL can be used for pulse compression. NLTL edge sharpening abilities may be applicable for signal rise time control.