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Power integrity

About: Power integrity is a research topic. Over the lifetime, 983 publications have been published within this topic receiving 6867 citations.


Papers
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Proceedings ArticleDOI
Ruonan Wang1, Hao Wang1, Yuan-Liang Li1, Jiangqi He1, Wei Xu1, Xiaoning Ye1, Zhenhua Yuan2 
01 Oct 2014
TL;DR: Through a practical design on an Intel Haswell-EP server platform in Huawei, a 4-PCB-layer reduction is achieved compared to the original board, saving system bill-of-material cost effectively.
Abstract: Many Intel PRC customers worked on low-cost solutions in server platforms. This paper introduced a method to investigate dual strip line performance on high-speed interfaces like DDR and PCIe. Through a practical design on an Intel Haswell-EP server platform in Huawei, we achieved 4-PCB-layer reduction compared to the original board, saving system bill-of-material cost effectively. Pre- and post-layout simulations were performed to evaluate design risks on signal integrity and power integrity. The electrical validations on board proved the comparable system performance of the low-cost design with the original board and Intel customer reference board, correlating to simulation results as well.

1 citations

Proceedings ArticleDOI
12 May 2008
TL;DR: In this article, an efficient integral equation method is proposed to simulate the electromagnetic compatibility problem inside the power-ground planes, which greatly reduces the computing time and still gives a good accuracy.
Abstract: With the ever decreasing feature size and increasing operating frequency, the noise coupling inside the power-ground planes becomes more and more serious. We propose an efficient integral equation method to simulate such electromagnetic compatibility problem. With the help of the structural features of the power-ground planes, the integral equation is simplified to a two-dimensional equation. This greatly reduces the computing time and still gives a good accuracy. By discretizing the integral equation, the equivalent circuit model is derived for each power-ground pair. It is straightforward to combine the derived circuit model with other circuit models, such as the transmission lines models of the interconnects and the on-board lumped components, to perform the system-level signal integrity and power integrity simulations.

1 citations

Proceedings ArticleDOI
23 Sep 2010
TL;DR: In this paper, the authors discuss the optimization of the high frequency performance of a parallel optical transceiver module, which is electrically pluggable, and its test board, and demonstrate the RF signal quality of the differential transmission lines.
Abstract: In this paper, we discuss the optimization of the high frequency performance of a parallel optical transceiver module, which is electrically pluggable, and its test board. A 6-layer printed circuit board (PCB) with embedded high-dielectric constant (Dk) material was built as a substrate for the optical transceiver module. An analysis of the signal integrity (SI) and power integrity (PI) is carried out. The RF signal quality of the differential transmission lines is demonstrated by 3-D electromagnetic simulations and 4-port Network Analyzer measurements in terms of the transmission parameter S21, the reflection parameter S11, and the time-domain reflection TDR. A 4-layer test board with 16 edge-mounted SMA connectors and one 38-pin sliding connector for optical transceiver module was also constructed. Finally, Eye-diagrams of each of the 8 channels comprising the four-channel bidirectional active optical cable (AOC) are measured.

1 citations

Proceedings ArticleDOI
03 May 2012
TL;DR: Lowering the noise on the power network enhances the maximum operating frequency by 11% by utilizing the proposed link breaking methodology, and reduces the voltage drop at the more sensitive circuits, while penalizing the less sensitive circuits.
Abstract: A link breaking methodology is introduced to reduce voltage degradation within mesh structured power distribution networks. The resulting power distribution network combines a single power distribution network to lower the network impedance, and multiple networks to reduce noise coupling among the circuits. Since the sensitivity to supply voltage variations within a power distribution network can vary among different circuits, the proposed methodology reduces the voltage drop at the more sensitive circuits, while penalizes the less sensitive circuits. The proposed methodology is evaluated for two case studies, demonstrating a reduction in the voltage drop in sensitive circuits. Based on these case studies, the voltage is improved by, on average, 4% at those nodes with the highest sensitivity. The voltage after application of the link breaking methodology is, on average, 96% of the ideal power supply voltage. Lowering the noise on the power network enhances, on average, the maximum operating frequency by 11% by utilizing the proposed link breaking methodology.

1 citations

Journal ArticleDOI
Guo-Ping Zou1, Xing-Chang Wei1, Shiyou Yang1, Li Ding1, Wei-Ying Ding1, Yanbin Yang1 
TL;DR: An integral equation hybrid method is proposed for the efficient calculation of the impedance of the complex grid PDN and provides a simple and useful electronics design automation tool for the power integrity analysis of complex circuits.
Abstract: The grid power distribution network (PDN) is an essential component in electronic packages to provide the dc power to circuits. In this paper, an integral equation hybrid method is proposed for the efficient calculation of the impedance of the complex grid PDN. First, the original 3-D grid PDN is reduced to a simple 2-D plane PDN. Both of them have the same input and mutual parasitic impedances. After that, this equivalent plane PDN is solved by using the 2-D integral equation method to consider its arbitrary shape. By comparing between the obtained impedances from the proposed method, full-wave method, and measurement, the accuracy and efficiency of the proposed method is verified. The proposed method provides a simple and useful electronics design automation tool for the power integrity analysis of complex circuits.

1 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202312
202267
202139
202045
201965
201852