Frequency dielectric constant and loss tangent extracting of organic material using multi-length microstrip

Organic material using for packaging substrate is selected and multi-length microstrip lines in same trace width are designed and performed on it. Novel formulas deliver to extract dielectric constant and loss tangent varying with frequency for selected organic materials will be shown in this paper. Performances of microstrip lines are measured by Agilent Vector Network Analyzer up to 20GHz and SOLT calibration used to get two-port S-parameters. Then, novel formulas are used to extract material parameters in ADS software by measurement date.