A LossOptimization MethodUsingWD Product forOn-ChipDifferential Transmission LineDesign

"theWD product", forahigh-speed differential transmission Thispaper proposes aloss optimization methodforahigh-line. Theproposed WD product isdemonstrated withmeasurespeed transmission line onSiLSI.Oneofthemostimportant mentresults. Itwill bepresented that theWD product canclarissues foratransmission line interconnection isloss reduction ifyarelationship between lossandon-chip transmission line ofsignal lines. Characteristics ofdifferential transmission linesstructures. areevaluated byon-wafer measurement. Itisshownthat attenu-Differential Transmission LineStructures ation characteristics depend ontheproduct ofaline width anda Figure 1showsamicrograph ofaDUT that consists ofRF line-to-line distance. Thesimple attenuation modelisproposed. padsandadifferential transmission line(DTL). A co-planar