Design and modeling of Faraday cages for substrate noise isolation
作者: Joyce H. WuJesús A. del Alamo
作者单位: 1Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
刊名: Solid State Electronics, 2013, Vol.85 , pp.6-11
来源数据库: Elsevier Journal
DOI: 10.1016/j.sse.2013.03.005
关键词: Mixed-signal circuitSi RF technologySubstrate noiseSystem-on-chipThrough-substrate viaThrough-wafer via
英文摘要: Abstract(#br)A Faraday cage structure using through-substrate vias is an effective strategy to suppress substrate crosstalk, particularly at high frequencies. Faraday cages can reduce substrate noise by 32dB at 10GHz, and 26dB at 50GHz. We have developed lumped-element, equivalent circuit models of the Faraday cages and test structures to better understand the performance of the Faraday cages. These models compare well to measured results and show that the vias of the Faraday cage act as an RLC shunt to ground that draws substrate current. Designing a Faraday cage to achieve optimum isolation requires low via impedance and mitigation of via sidewall capacitance. The Faraday cage inductance is correlated to the...
全文获取路径: Elsevier  (合作)
影响因子:1.482 (2012)