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针对多GHz微处理器中传统树状时钟分布网络因大延迟导致偏斜和抖动的问题，提出一种基于空间填充曲线的时钟分配网络，利用短传输线加载两个电感产生驻波模式，级联形成连续曲线，实现9.5GHz、6ps偏斜和1.8V全摆幅的时钟分布。
multi-GHz microprocessors because the skew and jitter are proportional to the large latency in the conventional tree structure. A number of resonant techniques have been reported to overcome clock distribution problems [1,2]. Figure 28.7.1 shows a short transmission line (TL) loaded with two inductors. It has a convenient standing-wave mode that separates the low-amplitude segment from the conventional standing wave [3]. Figure 28.7.1 also shows a space-filling-curve clock distribution network, in which the standing-wave oscillators are cascaded to form a continuous curve. The space-filling-curve flexibly distributes the fine clock even to an irregular area. The short latency without hierarchy results in low jitter and low skew. The curve is finally connected to the starting point to obtain a large loop. It reduces the load inductor by half and the reduction reduces the area penalty. The clock
Hiroshima University, Hiroshima Japan, Global clock distribution is becoming increasingly difficult for