共查询到14条相似文献,搜索用时 31 毫秒
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基于概率解释算法的原理,提出了一种考虑工艺波动的RLC互连延时统计模型,该模型使用了对数正态分布函数。在给定互连参数波动范围条件下,利用该算法计算延时仅需要采用前两个瞬态。和HSPICE相比,Monte Carlo分析中的均值和平均偏差误差分别低于0.7%和0.51%。模型计算简单且精度高,可以满足互连线仿真要求。 相似文献
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This paper deals with the problem of estimating the performance of a CMOS gate driving RLC interconnect load. The widely accepted model for CMOS gate and interconnect line is used for the representation. The CMOS gate is modeled by an Alpha Power law model, whereas the distributed RLC interconnect is represented by an equivalent π-model. The output waveform and the propagation delay of the inverter are analytically calculated and compared with SPICE simulations. The analytical driver-interconnect load model gives sufficiently close results to SPICE simulations for two different cases of slow and fast input ramps. For each case of stimulation, the model gives an insight to four regions of operation of the CMOS gate. The voltage waveform at the end of an interconnect line is obtained for each region of operation. The SPICE and analytical results for the output voltage waveform and propagation delay match very closely. 相似文献
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Unacceptable loss of signal integrity may cause permanent or intermittent harm to the functionality and performance of SoCs.
In this paper, we present an abstract model and a new test pattern generation method of signal integrity problems on interconnects.
This approach is achieved by considering the effects for testing inputs and parasitic RLC elements of interconnects. We also
develop a framework to deal with arbitrary interconnection topology. Experimental results show that the proposed signal integrity
fault model is more exact and more powerful for long interconnects than previous approaches. 相似文献