作者: Ming-Hsiang Cho , Guo-Wei Huang , Lin-Kun Wu , Chia-Sung Chiu , Yueh-Hua Wang
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摘要: A general three-port S-parameter de-embedding method using shield-based test structures for microwave on-wafer characterization is presented in this paper. This does not require any physical equivalent-circuit assumption the surrounding parasitics of a device-under-test. We use one open and three thru dummy devices to remove parasitic components connected gate, drain, source terminals MOSFET. By shielding lossy silicon substrate, cross-coupling from port can be significantly mitigated, thus, probe pads interconnects at each separately subtracted. The MOS transistor its corresponding fabricated 0.18-/spl mu/m CMOS process were characterized up 20 GHz. Compared with two-port cascade-based method, proposed procedure further eliminate associated dangling leg terminal. impacts accuracy technique on device modeling simulation are also discussed.