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An equivalent-circuit model of Cu-carbon nanotube heterogeneous coaxial through-silicon vias (HCTSVs) in 3-D integrated circuits (3-D ICs) is proposed in this paper. Based on the complex effective conductivity method, the resistances and inductances of Cu-single walled carbon nanotube (SWCNT) HCTSVs and Cu-multi walled carbon nanotube (MWCNT) HCTSVs are compared with that of Cu coaxial through-silicon...
Intrabody communication (IBC) is a promising technology that enables the improvement of digital healthcare devices. IBC uses the human body as a transmission media, and the accurate transmission model is important for the design of transceivers. In the measurements of transmission characteristics, baluns have been widely used to separate the grounds of transmitter and receiver. In this work, we analyze...
We have been investigating ultrasonic transducers using polyurea piezoelectric material, which is fabricated through vapor deposition process. To enhance the transducer performance, a multi-layered configuration is studied in this study. The fabrication process and the transducer design for the multi-layered structure are discussed. A special twin-vacuum-chamber is used for laminating the polyurea...
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