High-frequency modeling of Cu-graphene heterogeneous interconnects
Corresponding Author
Wen-Sheng Zhao
Centre for Optical and Electromagnetic Research, State Key Lab of Modern Optical Instrumentation, Zhejiang University, Hangzhou, 310058 China
Key Laboratory of RF Circuits and Systems of Ministry of Education, Microelectronics CAD Center, Hangzhou Dianzi University, Hangzhou, 310018 China
Correspondence to: Wen-Sheng Zhao, Centre for Optical and Electromagnetic Research, State Key Lab of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310058, China
E-mail: [email protected]; [email protected]
Search for more papers by this authorRui Zhang
Centre for Optical and Electromagnetic Research, State Key Lab of Modern Optical Instrumentation, Zhejiang University, Hangzhou, 310058 China
Search for more papers by this authorYuan Fang
Centre for Optical and Electromagnetic Research, State Key Lab of Modern Optical Instrumentation, Zhejiang University, Hangzhou, 310058 China
Search for more papers by this authorWen-Yan Yin
Centre for Optical and Electromagnetic Research, State Key Lab of Modern Optical Instrumentation, Zhejiang University, Hangzhou, 310058 China
Search for more papers by this authorGaofeng Wang
Key Laboratory of RF Circuits and Systems of Ministry of Education, Microelectronics CAD Center, Hangzhou Dianzi University, Hangzhou, 310018 China
Search for more papers by this authorKai Kang
University of Electronic Science and Technology, Chengdu, 611731 China
Search for more papers by this authorCorresponding Author
Wen-Sheng Zhao
Centre for Optical and Electromagnetic Research, State Key Lab of Modern Optical Instrumentation, Zhejiang University, Hangzhou, 310058 China
Key Laboratory of RF Circuits and Systems of Ministry of Education, Microelectronics CAD Center, Hangzhou Dianzi University, Hangzhou, 310018 China
Correspondence to: Wen-Sheng Zhao, Centre for Optical and Electromagnetic Research, State Key Lab of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310058, China
E-mail: [email protected]; [email protected]
Search for more papers by this authorRui Zhang
Centre for Optical and Electromagnetic Research, State Key Lab of Modern Optical Instrumentation, Zhejiang University, Hangzhou, 310058 China
Search for more papers by this authorYuan Fang
Centre for Optical and Electromagnetic Research, State Key Lab of Modern Optical Instrumentation, Zhejiang University, Hangzhou, 310058 China
Search for more papers by this authorWen-Yan Yin
Centre for Optical and Electromagnetic Research, State Key Lab of Modern Optical Instrumentation, Zhejiang University, Hangzhou, 310058 China
Search for more papers by this authorGaofeng Wang
Key Laboratory of RF Circuits and Systems of Ministry of Education, Microelectronics CAD Center, Hangzhou Dianzi University, Hangzhou, 310018 China
Search for more papers by this authorKai Kang
University of Electronic Science and Technology, Chengdu, 611731 China
Search for more papers by this authorSummary
One novel interconnect scheme consisting of both Cu and graphene sheet is proposed in this paper, with the advantages of both materials exploited greatly. It is shown that the introduction of graphene layers in such heterogeneous interconnect scheme can reduce its effective resistance and thereby improve its transmission performance. On the other hand, it is also demonstrated that both coated and double-coated structures possess better electrical performance than that of the sandwich one at high frequencies, because the graphene is placed at the interconnect surface where current is crowded. With the help of Partial Element Equivalent Circuit method, together with equivalent circuit technique, the transmission characteristics of some Cu-graphene interconnects are captured and compared with that of Cu wire, and the advantages of such heterogeneous interconnects can be enlarged with the advanced technology. Copyright © 2015 John Wiley & Sons, Ltd.
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