Chin. J. Semicond. > 2006, Volume 27 > Issue 9 > 1690-1694

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Suppressing of On-Chip Inductor Current Crowding by a Multi-Current-Path Method

Liu Ke, 菅洪彦 , Jian Hongyan, Huang Chenling and Tang Zhangwen

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Abstract: From the view of the electromagnetic theory,we examine the current redistributions of an inductor.We conclude that metal with a small cross-section has a weak skin effect and that inductors with a smaller ratio of the turn width to the space between turns have a weak proximity effect.The inductors are fabricated in 0.35μm four-metal CMOS technology.A turn of the differential inductor is divided into multi-shunt tracks,which keep the symmetry of the two ports of the inductor.Compared with a single-current-path configuration,the multi-current-path inductor offers a 40% greater maximum quality factor and a narrower range of operating frequencies,which we interpret here in detail.

Key words: on-chip inductorquality factorskin effectproximity effectmulti-current-pathself-resonant frequency串联电阻寄生电容

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    Received: 18 August 2015 Revised: 27 February 2006 Online: Published: 01 September 2006

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      Liu Ke, Jian Hongyan, Huang Chenling, Tang Zhangwen. Suppressing of On-Chip Inductor Current Crowding by a Multi-Current-Path Method[J]. Journal of Semiconductors, 2006, In Press. Liu K, Jian H Y, Huang C L, Tang Z W. Suppressing of On-Chip Inductor Current Crowding by a Multi-Current-Path Method[J]. Chin. J. Semicond., 2006, 27(9): 1690.Export: BibTex EndNote
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      Liu Ke, Jian Hongyan, Huang Chenling, Tang Zhangwen. Suppressing of On-Chip Inductor Current Crowding by a Multi-Current-Path Method[J]. Journal of Semiconductors, 2006, In Press.

      Liu K, Jian H Y, Huang C L, Tang Z W. Suppressing of On-Chip Inductor Current Crowding by a Multi-Current-Path Method[J]. Chin. J. Semicond., 2006, 27(9): 1690.
      Export: BibTex EndNote

      Suppressing of On-Chip Inductor Current Crowding by a Multi-Current-Path Method

      • Received Date: 2015-08-18
      • Accepted Date: 2006-01-18
      • Revised Date: 2006-02-27
      • Published Date: 2006-10-12

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