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This paper presents a rigorous investigation of high-frequency effects in carbon nanotube interconnects and their implications for the design and performance analysis of high-quality on-chip inductors. An accurate method is developed to calculate the frequency-dependent resistance and inductance of both single-walled (SWCNT) and multi-walled carbon nanotube (MWCNT) bundle interconnects. Our analysis...
An on-chip buck converter with 3D chip stacking is proposed and the operation is experimentally verified. The manufactured converter achieves a maximum power efficiency of 62% for an output current of 70mA with a switching frequency of 200MHz and a 2x2mm on-chip LC output filter in 0.35mum CMOS. The use of glass epoxy interposer to increase the maximum power efficiency up to 71.3%, and the power efficiency...
This paper presents a wideband circuit model of silicon-based interconnects for predicting their metallic and silicon substrate losses at higher frequencies. The skin and proximity effects in the structure are characterized using the partial element equivalent circuit (PEEC) method, and the parasitic parameters in silicon substrate are captured according to some analytical equations. Good agreements...
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