Modeling for Power/Ground Planes and Suppression of Ground Bounce
Date Issued
2006
Date
2006
Author(s)
Wu, Kai-Bin
DOI
zh-TW
Abstract
The major theme of this thesis focuses on the problem of power integrity. Power integrity is a crucial issue to the whole systematic stability and the primary noise of power/ground planes which results from the current flowing through a via is the ground bounce noise. To avoid the voltage fluctuation, leading to the misjudgment of digital signal and even making the system fail due to the ground bounce noise, this thesis proposes the genetic algorithm combining with the cavity model to optimize the placement of decoupling capacitors on the rectangular power/ground planes.
To make the analysis of power/ground planes easier, the virtual ports and equivalent models, which consist of lumped-elements and are derived in this thesis. The model can not only save much simulation time in analysis but also be very flexible to apply for the irregular power/ground planes and the situation that a board is full of devices. Moreover, the correction term of via effects in the practice design is considered in this thesis to make the model better. Finally, the full-wave simulation and measurement results from the vector network analyzer show a good correlation both with the models of regular and irregular power/ground planes to verify the proposed method.
Subjects
power/ground planes
ground bounce
電源接地平面
接地雜訊
Type
thesis
File(s)![Thumbnail Image]()
Loading...
Name
ntu-95-R92942112-1.pdf
Size
23.31 KB
Format
Adobe PDF
Checksum
(MD5):35295ba37e998432c2a5ed8a7d6fda84