A gold bond-wire in an integrated circuit carries a signal at

PHYSICS · Multi-part · Fermi University Physics · Electricity, Magnetism & Electromagnetism · Electromagnetic induction and alternating-current circuits · Electromagnetic induction and alternating-current circuits

The Boundary-Value Problem, Ch The quasi-static approximation, eddy currents and the skin effect

Problem

f = 1\,\mathrm{MHz}

. Gold has

\sigma = 4.10\times10^7\,\mathrm{S\,m^{-1}}

\mu_r = 1

and

\varepsilon_r \approx 1

. ((a)) Evaluate

\Lambda = \varepsilon_0\omega/\sigma

and state whether the displacement current may be dropped. ((b)) Calculate the skin depth of the wire at this frequency.

Browse the problem library