Abstract
This paper reports the design of a tunable radio-frequency (RF) inductor and analyses the parameters that influence the quality factor (Q) of the inductor. In our paper we mainly discuss the influence of the thickness of the metal layer on the Q when other parameters are fixed. In order to achieve the high thickness, we use SU-8 as our photoresist instead of the traditional photoresist. Through the analysis, we calculate out the thickness of the metal layer is 23um when the Q reaches to maximum.
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