CMOS技术中的堆叠电感和1对2变压器

Proceedings of the IEEE 2000 Custom Integrated Circuits Conference (Cat. No.00CH37044) Pub Date : 2000-05-21 DOI:10.1109/CICC.2000.852681

A. Zolfaghari, A. Chan, Behzad Razavi

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引用次数: 22

摘要

对堆叠螺旋电感的改进使自谐振频率提高了100%，而无需额外的处理步骤，产生的自谐振频率为5 nH至266 nH，自谐振频率为11.2 GHz至0.5 GHz。还建立了误差小于5%的自共振频率的封闭表达式。由3个堆叠螺旋组成的1对2变压器在2.5 GHz时获得1.8的电压增益。这些结构是用标准的CMOS技术制造的，有四层和五层金属层。

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Stacked inductors and 1-to-2 transformers in CMOS technology

A modification of stacked spiral inductors increases the self-resonance frequency by 100% with no additional processing steps, yielding values of 5 nH to 266 nH and self-resonance frequencies of 11.2 GHz to 0.5 GHz. Closed-form expressions predicting the self-resonance frequency with less than 5% error have also been developed. A 1-to-2 transformer consisting of 3 stacked spirals achieves a voltage gain of 1.8 at 2.5 GHz. The structures have been fabricated in standard CMOS technologies with four and five metal layers.

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Proceedings of the IEEE 2000 Custom Integrated Circuits Conference (Cat. No.00CH37044)

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