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A Cascade Open-Short-Thru (COST) De-Embedding Method for Microwave On-Wafer Characterization and Automatic Measurement
Ming-Hsiang CHO Guo-Wei HUANG Chia-Sung CHIU Kun-Ming CHEN An-Sam PENG Yu-Min TENG
IEICE TRANSACTIONS on Electronics
Publication Date: 2005/05/01
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Microelectronic Test Structures)
automatic measurement, cascade configuration, on-wafer de-embedding, silicon, S-parameters,
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In this study, a cascade open-short-thru (COST) de-embedding procedure is proposed for the first time for on-wafer device characterization in the RF/microwave frequency regime. This technique utilizes the "open" and "short" dummy structures to de-embed the probe-pad parasitics of a device-under-test (DUT). Furthermore, to accurately estimate the input/output interconnect parasitics, including the resistive, inductive, capacitive, and conductive components, the "thru" dummy device has been characterized after probe-pad de-embedding. With the combination of transmission-line theory and cascade-configuration concept, this method can efficiently generate the scalable and repeatable interconnect parameters to completely eliminate the redundant parasitics of the active/passive DUTs of various device sizes and interconnect dimensions. Consequently, this method is very suitable for the on-wafer automatic measurement.