公开(公告)号：US20040090289A1

公开(公告)日：2004-05-13

申请号：US10291530

申请日：2002-11-12

Applicant: Silicon Integrated Systems Corp.

Inventor： Tsun-hsu Chang

IPC: H01P007/00

CPC classification number: H01P7/082 ,  H05K1/0216 ,  H05K2201/09309 ,  H05K2203/162 ,  H05K2203/171

Abstract: An approach to enhance the noise immunity of high-speed digital signals by means of a resonance-free environment is developed. Resonance detuning is achieved by appropriately reshaping the layout of the power/ground planes. Resonant properties of the power distribution system, including resonant frequencies and field distribution profiles, were characterized with frequency-domain simulations. Analysis of the resonant field profiles reveals that the electric field distribution of the dominant mode normally concentrates in the vicinity of the plane edge. Therefore, resonance can be effectively tuned out of the operating frequency range through boundary configuring. In addition, it is shown that variation of the quality factor with the external probe position provides a means to monitor and construct the resonant field distribution. Physical mechanism responsible for this unique property is clarified from the perspective of probe coupling. A Y-shaped layout is reshaped to effectively realize a resonance-free operating environment.

Abstract translation: 开发了一种通过无共振环境提高高速数字信号的抗噪声性的方法。 谐振失谐是通过适当重新形成电源/接地层的布局来实现的。 配电系统的谐振特性，包括谐振频率和电场分布曲线，通过频域模拟进行了表征。 谐振场分布的分析表明，主模的电场分布通常集中在平面边缘附近。 因此，可以通过边界配置有效地将谐振调谐到工作频率范围之外。 另外，显示了质量因子与外部探针位置的变化提供了监测和构建谐振场分布的手段。 从探头耦合的角度阐明了负责这种独特性质的物理机制。 重新形成Y形布局，以有效实现无共振的操作环境。