A signal and power integrity oriented packaging for low cost and high performance systems

Iguchi, Daisuke; Umekawa, Hideyuki

doi:10.1109/icsj.2012.6523446

Cited by 4 publications

(1 citation statement)

References 3 publications

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“…Even high-quality discrete components cannot be used to filter noise at gigahertz level, as the parasitic inductance and capacitance due to necessary pads and vias to mount the discrete components make them ineffective [4], [5]. 2) Using thin laminates between the power and ground planes: This is the simplest technique that can be very effective for suppressing resonances and broadband power filtering [6]. Thin laminates, however, significantly increase the cost of the system.…”

Section: Introductionmentioning

confidence: 99%

Virtual Ground Fence for GHz Power Filtering on Printed Circuit Boards

Engin

Bowman

2013

IEEE Trans. Electromagn. Compat.

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In mixed-signal systems, noise coupling between different domains, such as digital and RF, can be a critical problem. Especially, the power/ground planes in packages or boards can be a major factor for noise coupling. Simultaneously switching drivers causes supply voltage fluctuations which can propagate both horizontally and vertically between the power/ground planes. The sensitive RF/analog signals have to be isolated from this digital switching noise, which gets coupled through the shared power distribution system. Hence, accurate estimation and improvement of the performance of power/ground planes is critical in a mixedsignal system. This paper introduces a new methodology to minimize the transfer impedance of the power distribution system. This will be achieved by a new design methodology, called the virtual ground fence. At its basic level, the virtual ground fence consists of quarter-wave transmission line stubs that act as short circuits between power and ground planes at their design frequency. An array of such stubs can then be considered as a ground fence. Power filtering is currently achieved mainly by using discrete decoupling capacitors at low frequencies. The virtual ground fence design is the distributed analog of this methodology at the gigahertz frequency regime.

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Section: Introductionmentioning

confidence: 99%