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Comparison of microwave inductors fabricated on silicon-on-sapphire and bulk silicon

机译:在蓝宝石硅和块状硅上制造的微波电感器的比较

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摘要

Inductors are important elements of microwave circuits that frequently require high self-resonant frequencies and high quality factors. In this work, circular spiral inductors fabricated on silicon-on-sapphire (SOS) and bulk silicon are compared. Due to the low-loss dielectric substrate, SOS inductors showed both higher self-resonant frequencies and higher quality factors than those fabricated on bulk silicon. Small-signal models extracted for the inductors confirm that the degradation of the inductor characteristics in bulk silicon stems from losses in the substrate.
机译:电感器是经常需要高自谐振频率和高质量因数的微波电路的重要元件。在这项工作中,比较了在蓝宝石硅(SOS)和块状硅上制造的圆形螺旋电感器。由于低损耗的介电基片,SOS电感器比在体硅上制造的电感器显示出更高的自谐振频率和更高的品质因数。为电感器提取的小信号模型证实,大块硅中电感器特性的下降源于衬底的损耗。

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