Electrical Modeling and Characterization of Graphene-Based On-Chip Spiral Inductors
Da-Wei Wang,
Meng-Jiao Yuan,
Jia-Yun Dai,
Wen-Sheng Zhao
Affiliations
Da-Wei Wang
Zhejiang Provincial Key Lab of Large-Scale Integrated Circuit Design, School of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, China
Meng-Jiao Yuan
Zhejiang Provincial Key Lab of Large-Scale Integrated Circuit Design, School of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, China
Jia-Yun Dai
Science and Technology on Monolithic Integrated Circuits and Modules Laboratory, Nanjing 210016, China
Wen-Sheng Zhao
Zhejiang Provincial Key Lab of Large-Scale Integrated Circuit Design, School of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, China
This paper investigates the electrical performance of graphene-based on-chip spiral inductors by virtue of a physics-based equivalent circuit model. The skin and proximity effects, as well as the substrate loss effect, are considered and treated appropriately. The graphene resistance and inductance are combined into the circuit model. It is demonstrated that the electrical characteristics of the on-chip square spiral inductor can be improved by replacing copper with graphene. Moreover, graphene exhibits more effectiveness in improving the inductance in tapered inductors than uniform ones.
