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Title: A methodology for accurate modeling of a pad structure from S-parameter measurements
Authors: Jayabalan, J. 
Ooi, B.L. 
Wu, B. 
Xu, D.S.
Iyer, M.K.
Leong, M.S. 
Keywords: Equivalent-circuit model
Pad models
Parameter extraction
S-parameter measurements
Wafer level package
Issue Date: 20-Apr-2005
Citation: Jayabalan, J., Ooi, B.L., Wu, B., Xu, D.S., Iyer, M.K., Leong, M.S. (2005-04-20). A methodology for accurate modeling of a pad structure from S-parameter measurements. Microwave and Optical Technology Letters 45 (2) : 115-118. ScholarBank@NUS Repository.
Abstract: In this paper, we describe a novel method for modeling pad geometries via parameter extraction using S-parameter measurements. We apply the method to a square pad structure, built with a coplanar transmission line on high-resistivity silicon, and arrive at an equivalent-circuit model that represents the pad over a wide operating frequency range of 1 to 20 GHz. Two-port ABCD matrices of two transmission lines of different lengths are used to derive the model. The model is optimized and validated using circuit simulation by comparing the simulated results with those of the measurements. This method is significant for high-frequency modeling of fine-pitch wafer-level package off-chip interconnects. © 2005 Wiley Periodicals, Inc.
Source Title: Microwave and Optical Technology Letters
ISSN: 08952477
DOI: 10.1002/mop.20740
Appears in Collections:Staff Publications

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